Earthquake Commission. Darfield Earthquake Recovery Geotechnical Factual Report Avondale

Transcription

1 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale

2 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Report prepared for: EARTHQUAKE COMMISSION Report prepared by: TONKIN & TAYLOR LTD Distribution: EARTHQUAKE COMMISSION TONKIN & TAYLOR LTD (FILE) 3 copies 1 copy February 11 T&T Ref: REP-AVD-FAC Darfield Earthquake Recovery Geotechnical Factual Report Avondale T&T Ref. REP-AVD-FAC Earthquake Commission February 11

3 Darfield Earthquake Recovery Geotechnical Factual Report Avondale Prepared by Tonkin & Taylor Limited for tbe Earthquake Commission February 11 Applicability This report was produced for the Earthquake Commission (EQC) to assist in assessing insurance claims made under the Earthquake Commission Act This report is not intended for any other purpose. It is recognised, however, that this report may assist central and local government planning for effective long-term solutions for the affected communities. Neither Tonkin & Taylor Ltd (T& T) nor the Earthquake Commission accepts any liability to any third party with respect to this report. Limitations This document is released for general information purposes only and should only be used for design purposes by appropriately qualified and experienced Scientists, Geologists and/or Professional Engineers. All of the data and information which is contained in this document may only be used for the purposes of recovery and repair of land and building damage associated with the 04 September Darfield Earthquake. This report comprises a main body and separate appendices which must be read in their entirety and are to be used in conjunction with each other. D~ '~'~ fud~'by Anthony Fairclough Project Director Darfield Earthquake Recovery Geotechnical Factual Report Avondale Earthquake Commission T&T Ref. REP AVD FAC February 11

4 Table of contents 1 Introduction 1 2 Project background 1 3 Site description General Regional geology 2 4 Geotechnical investigations General Cone penetration testing (CPT) Machine boreholes Geophysical testing 4 5 Groundwater observations 5 6 Laboratory testing 5 7 Environment Canterbury information 5 8 References 5 Appendix A: Appendix B: Appendix C: Appendix D: Appendix E: Appendix F: Appendix G: Investigation Location Plans Cone Penetration Testing Borehole Logs Borehole Core Photographs Geophysical Testing Laboratory Testing Environment Canterbury Borehole Darfield Earthquake Recovery Geotechnical Factual Report Avondale T&T Ref. REP-AVD-FAC Earthquake Commission February 11

5 1 1 Introduction The Earthquake Commission (EQC) engaged Tonkin & Taylor (T&T) to undertake site investigations around selected suburbs of Canterbury following the Darfield Earthquake sequence that started on 4 September. These site investigations comprise: a) Cone penetration testing b) Machine boreholes c) Geophysical testing d) Groundwater observations e) Laboratory testing Site investigation works and factual reporting is being undertaken for a number of suburbs that were affected by liquefaction induced land damage. The report contains factual data to provide a geotechnical source for council consent applications for the suburb. This report presents all currently available geotechnical and engineering geological investigations that were commissioned by EQC after the Darfield Earthquake and all readily available data that Environment Canterbury and Christchurch City Council hold for the suburb. This is a factual report of field investigations. The field investigations have been undertaken at discrete locations and no inferences about the nature and continuity of ground conditions away from the investigations locations are made. No interpretation of investigation results has been made in this report. 2 Project background The magnitude (M) 7.1 Darfield Earthquake occurred on 4 September. The epicentre was close to the town of Darfield, approximately 40 km west of Christchurch. The earthquake caused extensive ground liquefaction, in localised areas of Canterbury. The liquefaction resulted in major ground settlement, lateral spreading and, to a lesser extent, foundation support failure, with consequential building damage. T&T carried out a broad geotechnical land damage assessment and mapping of the main urban areas in the Canterbury region that have been significantly affected by strong ground motion arising from the earthquake. The results of that assessment are presented in the T&T Stage 1 report (Ref 1) dated October and released to the general public by EQC. The Stage 1 report presented the land damage categorisation, mapping methodology, information and results generated to 1 October. Land remediation concepts and generalised land remediation options were also presented. The T&T Stage 2 report (Ref 2) dated November and released to the general public by EQC is based on a detailed suburb-by-suburb engineering assessment into the nature and extent of land damage. It also identifies land repair strategies for each suburb and areas most affected by land damage. The report presents 22,500 mapped properties as at 5 November in Canterbury and separates them into three recovery zones; A, B and C. These recovery zones relate to the extent of land repair required and allow for a coordinated recovery plan. Darfield Earthquake Recovery Geotechnical Factual Report Avondale T&T Ref. REP-AVD-FAC Earthquake Commission February 11

6 2 3 Site description 3.1 General Avondale is a suburb on the northeast side of Christchurch and is located approximately 2.5 km from the Christchurch CBD (Drawing LOC-AVD-01, Appendix A). The subject area is within Christchurch City Council jurisdiction. It is located on low lying sub horizontal alluvial deposits and is bounded to the west and north by the Avon River and to the south by Porritt Park and a meander loop/oxbow lake of the Avon River. The area is low lying and topographically is typically flat. 3.2 Regional geology Geology of the Christchurch Urban Area (Ref 3) shows the subject area of Avondale to be underlain by alluvial sand and silt overbank deposits of Holocene age. 4 Geotechnical investigations 4.1 General The geotechnical investigations commissioned by EQC from September were determined and located under direction from T&T. The locations were selected taking into account access for the site investigation plant, the presence of services and any traffic management requirements. The current investigations comprise: (a) 28 Cone penetration tests (CPTs) (b) 5 Machine drilled boreholes (c) 1540 m of MASW geophysical testing (d) Laboratory testing The location of the site investigations is shown on Drawing GIP-AVD-01 (Appendix A) and each of the above investigation techniques is discussed below. 4.2 Cone penetration testing (CPT) Five companies were commissioned to provide CPT probing services on this project and information on the CPT rig capability is summarised briefly below. The output of each CPT rig varies and therefore the testing data has been produced on a standard T&T template. The company which carried out each CPT test is identified on the CPT log. The companies that carried out the testing were: a) Opus International Consultants Ltd (Opus) - 18T truck-mounted rig b) Perry Drilling Ltd (Perry) - T rubber tracked truck-mounted rig c) McMillan Drilling Services (McMillan) - 14T truck-mounted rig d) Geotech Drilling (Geotech) - 16T truck-mounted rig e) Ground Investigations Ltd (GI) - self-augering Pagani CPT rig. The rig augers reaction anchors into place in the ground in order to drive a standard CPTu cone with up to T of force. Selected CPT probes had down-hole seismic shear wave velocity testing carried out. These are identified on each CPT log and summarised in Table 4-1 below. Darfield Earthquake Recovery Geotechnical Factual Report Avondale T&T Ref. REP-AVD-FAC Earthquake Commission February 11

7 3 Each CPT probe location was pre-dug by hand to between 800 mm and mm to mitigate the risk of unforeseen underground services being present at the selected investigation locations. The results of the CPT probing are presented in Appendix B. The CPT testing undertaken is summarised in Table 4-1. Table 4-1 Cone penetration testing summary CPT ID Maximum depth (m) Comments CPT-AVD CPT-AVD Seismic CPT CPT-AVD CPT-AVD CPT-AVD Pilot CPT CPT-AVD Pilot CPT CPT-AVD Pilot CPT CPT-AVD Pilot CPT CPT-AVD Seismic CPT CPT-AVD CPT-AVD CPT-AVD CPT-AVD CPT-AVD CPT-AVD CPT-AVD CPT-WAI Pilot CPT CPT-WAI CPT-WAI Seismic CPT CPT-WAI CPT-WAI CPT-WAI Seismic CPT CPT-WAI CPT-WAI CPT-WAI CPT-WAI CPT-WAI CPT-WAI Darfield Earthquake Recovery Geotechnical Factual Report Avondale T&T Ref. REP-AVD-FAC Earthquake Commission February 11

8 4 4.3 Machine boreholes Three companies were commissioned to provide borehole drilling services on this project. Their rig capabilities are briefly discussed below. Each borehole log identifies the company which conducted the drilling. a) McMillan Drilling Ltd (McMillan) used a direct push drilling rig with Standard Penetration Tests (SPT) at typically 1.2 m centres where appropriate. The direct push yields nearly continuous core recovery and generally extended to a minimum depth of 15 m with core diameter of 50 mm. b) CW Drilling (CW) used machine drilled rotary coring with Concentrix casing. Samples were recovered using a combination of push tubes and open barrel coring in sediments. Very dense gravels were drilled using an air flush down hole hammer. SPTs were carried out at typically 1.5 m intervals where appropriate. c) Perry Drilling (Perry) used a John Deere 37 with HQ coring. Standard Penetration Tests (SPT) were carried out at typically 1.5 m centres. Core diameter recovered was 63.5 mm. On completion of drilling the boreholes were finished in one of three ways, as listed below: (a) Backfilling the hole to comply with Environment Canterbury requirements (typically filled with grout or bentonite) (b) Installation of a piezometer (c) Installation of PVC ducting to enable down-hole shear wave velocity testing. The recovered core samples were either presented in clear plastic liners or placed into core boxes. The samples were returned to the T&T office in Christchurch for logging, typically within 24 hours of the borehole being completed. The core recovered from the boreholes was logged by a T&T geotechnician in general accordance with the New Zealand Geotechnical Society Guidelines (Ref 4). Representative samples were selected from the borehole materials for laboratory testing. The machine boreholes undertaken are summarised in Table 4-2. Table 4-2 Machine borehole drilling summary Borehole ID Maximum depth (m) Method Drilling Company BH-AVD Concentrix CW Drilling BH-AVD Concentrix CW Drilling BH-WAI Duel Tube McMillans BH-WAI Duel Tube McMillans BH-WAI Duel Tube McMillans The borehole logs are presented in Appendix C and photographs of the borehole core in Appendix D. A borehole log key sheet is included in the front of Appendix C. 4.4 Geophysical testing Southern Geophysical Ltd completed a series of geophysics tests at specified locations within the suburb. The testing comprised Multichannel Analysis of Surface Waves (MASW) and was used to provide a shear wave velocity profile with depth. The geophones used were typically spaced at 1.0 m centres, which have produced a vertical profile extending around 13.0 m below ground level. Darfield Earthquake Recovery Geotechnical Factual Report Avondale T&T Ref. REP-AVD-FAC Earthquake Commission February 11

9 5 This technique was carried out at approximately 5.0 m centres to provide a two dimensional profile of subsurface shear wave velocities. Copies of the geophysical testing results are presented in Appendix E. 5 Groundwater observations In Avondale, during the investigations, groundwater depths ranged from 2.2 m to 1.3 m below existing ground level. These identified levels were based on dynamic pore water pressure results in CPT testing and field observations of waterways (river & stream levels). 6 Laboratory testing Geotechnics Ltd (Tauranga) were commissioned by T&T to undertake various laboratory tests on samples obtained from the investigation boreholes. Samples recovered from boreholes were couriered to Tauranga for soil classification tests. The samples typically comprised disturbed samples. The tests undertaken include: (a) Fines content (wet sieve) testing generally in accordance with NZS 4402:1986 Test (Ref 5) (b) Particle size distribution testing in accordance with NZS 4402:1986 Test (Ref 5) Copies of the results available to date are included in Appendix F. 7 Environment Canterbury information Additional borehole data, which is held by Environment Canterbury for the subject area, has been included in Appendix G. This data has been reproduced with the permission of Environment Canterbury and forms part of previous investigations undertaken by a variety of geotechnical consultants. Records for boreholes outside of the area covered by this report may be obtained from Environment Canterbury. 8 References 1. Tonkin & Taylor Ltd (October ), prepared for the Earthquake Commission Darfield Earthquake 4 September Geotechnical Land Damage Assessment & Reinstatement Report STAGE 1 REPORT. 2. Tonkin & Taylor Ltd (November ), prepared for the Earthquake Commission Darfield Earthquake 4 September Geotechnical Land Damage Assessment & Reinstatement Report STAGE 2 REPORT. 3. Brown, L.J.; Weeber, J.H. (1992), Geology of the Christchurch urban area. Institute of Geological & Nuclear Sciences 1:25,000 geological map 1. 1 sheet + 4p. Lower Hutt, New Zealand, Institute of Geological and Nuclear Sciences Limited. 4. NZ Geotechnical Society (December 05), Field Description for Soil and Rock. Guideline for the Field Classification and Description of Soil and Rock for Engineering Purposes. 5. New Zealand Standards (1986), NZS4402: Methods of testing for civil engineering purposes. Darfield Earthquake Recovery Geotechnical Factual Report Avondale T&T Ref. REP-AVD-FAC Earthquake Commission February 11

10 6 Darfield Earthquake Recovery Geotechnical Factual Report Avondale T&T Ref. REP-AVD-FAC Earthquake Commission February 11

11 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix A: Investigation Location Plans

12 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix A: Investigation Location Plans Report prepared for: EARTHQUAKE COMMISSION Report prepared by: TONKIN & TAYLOR LTD Distribution: EARTHQUAKE COMMISSION TONKIN & TAYLOR LTD (FILE) 3 copies 1 copy February 11 T&T Ref: REP-AVD-FAC Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix A: Investigation Location Plans T&T Ref. REP-AVD-FAC Earthquake Commission February 11

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14 Appendix A: Investigation Location Plans Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix A: Investigation Location Plans T&T Ref. REP-AVD-FAC Earthquake Commission February 11

15 KEY PLAN SCALE 1:500,000 AVONDALE Tonkin & Taylor Environmental and Engineering Consultants Level 6, 151 Kilmore St, Christchurch Tel. (03) Fax. (03) LOC-AVD-01.dwg 01 17/02/11 12:45:46 p.m. REPORT ISSUE

16 Tonkin & Taylor Environmental and Engineering Consultants Level 6, 151 Kilmore St, Christchurch Tel. (03) Fax. (03) GIP-AVD-01.dwg 01 17/02/11 12:43:54 p.m. REPORT ISSUE

17 Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix A: Investigation Location Plans T&T Ref. REP-AVD-FAC Earthquake Commission February 11

18 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix B: Cone Penetration Testing

19 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix B: Cone Penetration Testing Report prepared for: EARTHQUAKE COMMISSION Report prepared by: TONKIN & TAYLOR LTD Distribution: EARTHQUAKE COMMISSION TONKIN & TAYLOR LTD (FILE) 3 copies 1 copy February 11 T&T Ref: REP-AVD-FAC Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix B: Cone Penetration Testing T&T Ref. REP-AVD-FAC Earthquake Commission February 11

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21 Appendix B: Cone Penetration Testing Summary Sheet Avondale AVD 17 CPT ID Maximum depth (m) Location (me) Location (mn) Ground Surface R.L Comments CPT-AVD CPT-AVD Seismic CPT CPT-AVD CPT-AVD CPT-AVD Pilot CPT CPT-AVD Pilot CPT CPT-AVD Pilot CPT CPT-AVD Pilot CPT CPT-AVD Seismic CPT CPT-AVD CPT-AVD CPT-AVD CPT-AVD CPT-AVD CPT-AVD CPT-AVD CPT-WAI Pilot CPT CPT-WAI CPT-WAI Seismic CPT CPT-WAI CPT-WAI CPT-WAI Seismic CPT CPT-WAI CPT-WAI CPT-WAI CPT-WAI CPT-WAI CPT-WAI Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix B: Cone Penetration Testing T&T Ref. REP-AVD-FAC Earthquake Commission February 11

22 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-AVD-01 Test Date: 19-Nov- Location: Avondale Operator: McMillan Pre-Drill: 0.8m Assumed GWL: 1.5mBGL Located By: Survey GPS Position: mE mN 2.05mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 3:58 p.m. Template: CPT Graph Template v0.41.xls

23 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-AVD-02 Test Date: 19-Nov- Location: Avondale Operator: Perry Pre-Drill: 0.8m Assumed GWL: 1.8mBGL Located By: Survey GPS Position: mE mN 2.24mRL Coord. System: NZMG & MSL Other Tests: Seismic downhole Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:06 p.m. Template: CPT Graph Template v0.41.xls

24 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-AVD-02 Test Date: 19-Nov- Location: Avondale Operator: Perry Pre-Drill: 0.8m Assumed GWL: 1.8mBGL Located By: Survey GPS Position: mE mN 2.24mRL Coord. System: NZMG & MSL Other Tests: Seismic downhole Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:06 p.m. Template: CPT Graph Template v0.41.xls

25 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-AVD-03 Test Date: 19-Nov- Location: Avondale Operator: McMillan Pre-Drill: 0.8m Assumed GWL: 2mBGL Located By: Survey GPS Position: mE mN 2.11mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:09 p.m. Template: CPT Graph Template v0.41.xls

26 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-AVD-04 Test Date: 19-Nov- Location: Avondale Operator: McMillan Pre-Drill: 0.8m Assumed GWL: 1.5mBGL Located By: Survey GPS Position: mE mN 2.07mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 3:58 p.m. Template: CPT Graph Template v0.41.xls

27 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-AVD-05 Test Date: 6-Oct- Location: Avondale Operator: Geotech Pre-Drill: 0m Assumed GWL: 1.5mBGL Located By: Survey GPS Position: mE mN 1.971mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 3:58 p.m. Template: CPT Graph Template v0.41.xls

28 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-AVD-06 Test Date: 6-Oct- Location: Avondale Operator: Geotech Pre-Drill: 0m Assumed GWL: 1.3mBGL Located By: Survey GPS Position: mE mN 1.776mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 3:58 p.m. Template: CPT Graph Template v0.41.xls

29 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-AVD-07 Test Date: 7-Oct- Location: Avondale Operator: Geotech Pre-Drill: 0m Assumed GWL: 1.7mBGL Located By: Survey GPS Position: mE mN 1.944mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 3:58 p.m. Template: CPT Graph Template v0.41.xls

30 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-AVD-08 Test Date: 7-Oct- Location: Avondale Operator: Geotech Pre-Drill: 0m Assumed GWL: 1.7mBGL Located By: Survey GPS Position: mE mN 1.872mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 3:58 p.m. Template: CPT Graph Template v0.41.xls

31 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-AVD-09 Test Date: -Nov- Location: Avondale Operator: Perry Pre-Drill: 0.8m Assumed GWL: 1.7mBGL Located By: Survey GPS Position: mE mN 2mRL Coord. System: NZMG & MSL Other Tests: Seismic downhole Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:09 p.m. Template: CPT Graph Template v0.41.xls

32 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-AVD-09 Test Date: -Nov- Location: Avondale Operator: Perry Pre-Drill: 0.8m Assumed GWL: 1.7mBGL Located By: Survey GPS Position: mE mN 2mRL Coord. System: NZMG & MSL Other Tests: Seismic downhole Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:09 p.m. Template: CPT Graph Template v0.41.xls

33 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-AVD- Test Date: 19-Nov- Location: Avondale Operator: McMillan Pre-Drill: 0.8m Assumed GWL: 1.5mBGL Located By: Survey GPS Position: mE mN 2.72mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 3:58 p.m. Template: CPT Graph Template v0.41.xls

34 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-AVD-14 Test Date: -Dec- Location: Avondale Operator: Opus Pre-Drill: 1.2m Assumed GWL: 2.1mBGL Located By: Survey GPS Position: mE mN 2.22mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 9:50 a.m. Template: CPT Graph Template v0.41.xls

35 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-AVD-15 Test Date: -Dec- Location: Avondale Operator: Perry Pre-Drill: 1.2m Assumed GWL: 2.1mBGL Located By: Survey GPS Position: mE mN 2.05mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 9:50 a.m. Template: CPT Graph Template v0.41.xls

36 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-AVD-15 Test Date: -Dec- Location: Avondale Operator: Perry Pre-Drill: 1.2m Assumed GWL: 2.1mBGL Located By: Survey GPS Position: mE mN 2.05mRL Coord. System: NZMG & MSL Other Tests: Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 9:50 a.m. Template: CPT Graph Template v0.41.xls

37 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-AVD-16 Test Date: -Dec- Location: Avondale Operator: Perry Pre-Drill: 1.2m Assumed GWL: 2.1mBGL Located By: Survey GPS Position: mE mN 2.21mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 9:50 a.m. Template: CPT Graph Template v0.41.xls

38 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-AVD-16 Test Date: -Dec- Location: Avondale Operator: Perry Pre-Drill: 1.2m Assumed GWL: 2.1mBGL Located By: Survey GPS Position: mE mN 2.21mRL Coord. System: NZMG & MSL Other Tests: Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 9:50 a.m. Template: CPT Graph Template v0.41.xls

39 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-AVD-17 Test Date: 9-Dec- Location: Avondale Operator: Perry Pre-Drill: 1.2m Assumed GWL: 2mBGL Located By: Survey GPS Position: mE mN 2.17mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 3:58 p.m. Template: CPT Graph Template v0.41.xls

40 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-AVD-17 Test Date: 9-Dec- Location: Avondale Operator: Perry Pre-Drill: 1.2m Assumed GWL: 2mBGL Located By: Survey GPS Position: mE mN 2.17mRL Coord. System: NZMG & MSL Other Tests: Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 3:58 p.m. Template: CPT Graph Template v0.41.xls

41 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-AVD-18 Test Date: 9-Dec- Location: Avondale Operator: Perry Pre-Drill: 1.2m Assumed GWL: 2.2mBGL Located By: Survey GPS Position: mE mN 2.16mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 9:50 a.m. Template: CPT Graph Template v0.41.xls

42 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-AVD-18 Test Date: 9-Dec- Location: Avondale Operator: Perry Pre-Drill: 1.2m Assumed GWL: 2.2mBGL Located By: Survey GPS Position: mE mN 2.16mRL Coord. System: NZMG & MSL Other Tests: Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 9:50 a.m. Template: CPT Graph Template v0.41.xls

43 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-AVD-19 Test Date: 9-Dec- Location: Avondale Operator: Perry Pre-Drill: 1.2m Assumed GWL: 1.6mBGL Located By: Survey GPS Position: mE mN 2.23mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:09 p.m. Template: CPT Graph Template v0.41.xls

44 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-AVD-19 Test Date: 9-Dec- Location: Avondale Operator: Perry Pre-Drill: 1.2m Assumed GWL: 1.6mBGL Located By: Survey GPS Position: mE mN 2.23mRL Coord. System: NZMG & MSL Other Tests: Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:09 p.m. Template: CPT Graph Template v0.41.xls

45 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-WAI-01 Test Date: 30-Sep- Location: Wainoni Operator: Geotech Pre-Drill: 0m Assumed GWL: 2.1mBGL Located By: Survey GPS Position: mE mN 2.29mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 4:25 p.m. Template: CPT Graph Template v0.41.xls

46 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-WAI-12 Test Date: 9-Nov- Location: Wainoni Operator: Perry Pre-Drill: 0.8m Assumed GWL: 2mBGL Located By: Survey GPS Position: mE mN 2.27mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:18 p.m. Template: CPT Graph Template v0.41.xls

47 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-WAI-12 Test Date: 9-Nov- Location: Wainoni Operator: Perry Pre-Drill: 0.8m Assumed GWL: 2mBGL Located By: Survey GPS Position: mE mN 2.27mRL Coord. System: NZMG & MSL Other Tests: Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:18 p.m. Template: CPT Graph Template v0.41.xls

48 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-WAI-13 Test Date: 9-Nov- Location: Wainoni Operator: McMillan Pre-Drill: 0.8m Assumed GWL: 2mBGL Located By: Survey GPS Position: mE mN 2.45mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:18 p.m. Template: CPT Graph Template v0.41.xls

49 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-WAI-14 Test Date: 9-Nov- Location: Wainoni Operator: Perry Pre-Drill: 0.8m Assumed GWL: 1.7mBGL Located By: Survey GPS Position: mE mN 1.93mRL Coord. System: NZMG & MSL Other Tests: Seismic downhole Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:18 p.m. Template: CPT Graph Template v0.41.xls

50 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-WAI-14 Test Date: 9-Nov- Location: Wainoni Operator: Perry Pre-Drill: 0.8m Assumed GWL: 1.7mBGL Located By: Survey GPS Position: mE mN 1.93mRL Coord. System: NZMG & MSL Other Tests: Seismic downhole Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:18 p.m. Template: CPT Graph Template v0.41.xls

51 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-WAI-15 Test Date: 9-Nov- Location: Wainoni Operator: Perry Pre-Drill: 0.8m Assumed GWL: 2mBGL Located By: Survey GPS Position: mE mN 2.08mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:18 p.m. Template: CPT Graph Template v0.41.xls

52 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-WAI-15 Test Date: 9-Nov- Location: Wainoni Operator: Perry Pre-Drill: 0.8m Assumed GWL: 2mBGL Located By: Survey GPS Position: mE mN 2.08mRL Coord. System: NZMG & MSL Other Tests: Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ 4:18 p.m. Template: CPT Graph Template v0.41.xls

53 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-WAI-16 Test Date: 9-Nov- Location: Wainoni Operator: Perry Pre-Drill: 0.8m Assumed GWL: 2.1mBGL Located By: Survey GPS Position: mE mN 2.25mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 4:26 p.m. Template: CPT Graph Template v0.41.xls

54 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-WAI-16 Test Date: 9-Nov- Location: Wainoni Operator: Perry Pre-Drill: 0.8m Assumed GWL: 2.1mBGL Located By: Survey GPS Position: mE mN 2.25mRL Coord. System: NZMG & MSL Other Tests: Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 4:26 p.m. Template: CPT Graph Template v0.41.xls

55 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-WAI-23 Test Date: -Dec- Location: Wainoni Operator: Opus Pre-Drill: 1.2m Assumed GWL: 1.6mBGL Located By: Survey GPS Position: mE mN 1.98mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 4:26 p.m. Template: CPT Graph Template v0.41.xls

56 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-WAI-24 Test Date: -Dec- Location: Wainoni Operator: Opus Pre-Drill: 1.2m Assumed GWL: 1.5mBGL Located By: Survey GPS Position: mE mN 1.91mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 4:26 p.m. Template: CPT Graph Template v0.41.xls

57 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-WAI-24 Test Date: -Dec- Location: Wainoni Operator: Opus Pre-Drill: 1.2m Assumed GWL: 1.5mBGL Located By: Survey GPS Position: mE mN 1.91mRL Coord. System: NZMG & MSL Other Tests: Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 4:26 p.m. Template: CPT Graph Template v0.41.xls

58 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-WAI-25 Test Date: -Dec- Location: Wainoni Operator: Opus Pre-Drill: 1.2m Assumed GWL: 1.5mBGL Located By: Survey GPS Position: mE mN 1.94mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 4:26 p.m. Template: CPT Graph Template v0.41.xls

59 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-WAI-26 Test Date: -Dec- Location: Wainoni Operator: Opus Pre-Drill: 1.2m Assumed GWL: 1.6mBGL Located By: Survey GPS Position: mE mN 2.05mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 16/12/ 4:26 p.m. Template: CPT Graph Template v0.41.xls

60 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 2 CPT-WAI-27 Test Date: 13-Dec- Location: Wainoni Operator: Opus Pre-Drill: 1.2m Assumed GWL: 1.5mBGL Located By: Survey GPS Position: mE mN 1.84mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ :11 a.m. Template: CPT Graph Template v0.41.xls

61 Project: Darfield Earthquake - EQC Ground Investigations Page: 2 of 2 CPT-WAI-27 Test Date: 13-Dec- Location: Wainoni Operator: Opus Pre-Drill: 1.2m Assumed GWL: 1.5mBGL Located By: Survey GPS Position: mE mN 1.84mRL Coord. System: NZMG & MSL Other Tests: Comments: Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ :11 a.m. Template: CPT Graph Template v0.41.xls

62 Project: Darfield Earthquake - EQC Ground Investigations Page: 1 of 1 CPT-WAI-28 Test Date: 13-Dec- Location: Wainoni Operator: Opus Pre-Drill: 1.2m Assumed GWL: 2mBGL Located By: Survey GPS Position: mE mN 2.24mRL Coord. System: NZMG & MSL Other Tests: Comments: 0 Cone Sleeve Cone Resistance (MPa) Friction Ratio (%) Pore Pressure (kpa) Depth( m) Sleeve Friction (kpa) T+T Ref: Printed: 21/12/ :11 a.m. Template: CPT Graph Template v0.41.xls

63 Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix B: Cone Penetration Testing T&T Ref. REP-AVD-FAC Earthquake Commission February 11

64 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix C: Borehole Logs

65 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix C: Borehole Logs Report prepared for: EARTHQUAKE COMMISSION Report prepared by: TONKIN & TAYLOR LTD Distribution: EARTHQUAKE COMMISSION TONKIN & TAYLOR LTD (FILE) 3 copies 1 copy February 11 T&T Ref: REP-AVD-FAC Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix C: Borehole Logs T&T Ref. REP-AVD-FAC Earthquake Commission February 11

66

67 Appendix C: Borehole Logs Summary Sheet Avondale AVD 17 Borehole ID Maximum depth (m) Location (me) Location (mn) Ground level R.L Method Drilling Company BH-AVD Concentrix CW Drilling BH-AVD Concentrix CW Drilling BH-WAI Duel Tube McMillans BH-WAI Duel Tube McMillans BH-WAI Duel Tube McMillans Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix C: Borehole Logs T&T Ref. REP-AVD-FAC Earthquake Commission February 11

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69

70 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: AVD-01 Hole Location: BH-AVD-01-Avondale SHEET 1 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Avondale JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 6/12/ DRILL METHOD: Open Barrel HOLE FINISHED: 8/12/ DRILLED BY: CW Drilling DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. HAND DIG FILL. (Potholed for services check and backfilled.) FLUID LOSS WATER CORE RECOVERY (%) METHOD CASING TESTS SAMPLES R.L. (m) 2.0 DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL MOISTURE WEATHERING CONDITION D STRENGTH/DENSITY CLASSIFICATION L SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) FILL: Fine SAND, brown. Dry, poorly graded. (Borehole drilled through pre-dug and backfilled pothole.) 80 YALDHURST FORMATION (Alluvial) ML M-W F Sandy SILT, greyish brown. Moist, low plasticity. Sand is fine - 0.8m to 1m no recovery Concentrix 2/3/2 N= /4/5 N=9 FC SP ML W M L S Fine SAND with trace silt, grey. Wet, poorly graded m to 3m no recovery Sandy SILT, greyish brown. Moist, low plasticity. Sand is fine. - thin bed of silt SP W L Fine SAND with trace silt, grey. Wet, poorly graded. 67 DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling Open Barrel T+T_DATATEMPLATE.GDT eek 0 1/3/4 N=7 FC PSD WS SP SW W - 4m to 4.5m no recovery Fine to medium SAND with trace silt, grey. Wet, well graded. 4.5 BORELOG AVONDALE.GPJ 7/2/11

71 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: AVD-01 Hole Location: BH-AVD-01-Avondale SHEET 2 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Avondale JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 6/12/ DRILL METHOD: Open Barrel HOLE FINISHED: 8/12/ DRILLED BY: CW Drilling DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. YALDHURST FORMATION (Alluvial) FLUID LOSS WATER CORE RECOVERY (%) METHOD CASING FC TESTS SAMPLES R.L. (m) -3.0 DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SW MOISTURE WEATHERING CONDITION W STRENGTH/DENSITY L Fine to medium SAND with trace silt, grey. Wet, well graded m to 6m no recovery 1/1/4 N=5 FC 47 CLASSIFICATION SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling Open Barrel m to 7.5m no recovery 7.0 4/4/4 N=8 PSD WS SP Fine SAND with some silt, grey. Wet, poorly graded SW SP Fine to medium SAND, grey. Wet, well graded. Fine SAND with trace silt, grey. Wet, poorly graded. Wood fragments at 8.2m m to 9m no recovery T+T_DATATEMPLATE.GDT eek CHRISTCHURCH FORMATION (Coastal) 93 12/16/23 N=39 FC FC SW SP D Fine to coarse SAND with some gravel, grey. Wet, well graded. Gravel is fine, rounded. Fine SAND interbedded with very thin beds of silt, grey. Wet, poorly graded BORELOG AVONDALE.GPJ 7/2/11

72 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: AVD-01 Hole Location: BH-AVD-01-Avondale SHEET 3 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Avondale JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 6/12/ DRILL METHOD: Open Barrel HOLE FINISHED: 8/12/ DRILLED BY: CW Drilling DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. FLUID LOSS WATER CORE RECOVERY (%) METHOD W D Fine SAND interbedded with very thin beds of silt, grey. Wet, poorly graded. 9//24 N=44 SW -.4m to.5m no recovery Fine to medium SAND, grey. Wet, well graded. - trace silt 0 SP - some fine gravel Fine SAND with trace silt, grey. Wet, poorly graded. Open Barrel 65 7/11/ N=31 53 CASING TESTS SAMPLES R.L. (m) -8.0 DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL MOISTURE WEATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling m to 13.5m no recovery 7/11/15 N= MD T+T_DATATEMPLATE.GDT eek 6/18/19 N= End of borehole at 15mbgl. BORELOG AVONDALE.GPJ 7/2/11

73 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: AVD-02 Hole Location: BH-AVD-02-Avondale SHEET 1 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Avondale JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 13/12/ HOLE FINISHED: 15/12/ DRILL METHOD: Open Barrel/Concentrix DRILLED BY: CW Drilling DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. HAND DIG FILL. (Potholed for services check and backfilled.) FLUID LOSS WATER CORE RECOVERY (%) METHOD SAMPLE BAGGED CASING TESTS SAMPLES R.L. (m) DEPTH (m) 0.5 GRAPHIC LOG CLASSIFICATION SYMBOL MOISTURE WEATHERING CONDITION VL STRENGTH/DENSITY CLASSIFICATION D FILL: (Borehole drilled through pre-dug and backfilled pothole.) YALDHURST FORMATION (Alluvial gravel and overbank silt) 0 1/3/2 N=5 ML ML ML W S SILT with some sand and trace organics (roots) brown. Dry, low plasticity. Sand is fine to medium gravel. - becomes wet SILT with trace sand and organics (roots), brown. Wet, low plasticity. Sand is fine. SILT with trace sand, grey. Wet, low plasticity. Sand is fine. 0 OPEN BARREL 65 FC PSD WS FC SP L - becomes wet Fine SAND interbedded with occasional very thin silt beds, grey. Wet, poorly graded. 0 FC 2/3/4 N=7 FC 33 SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling m to 4.5m no recovery 4.0 T+T_DATATEMPLATE.GDT eek 3/4/7 N= MD 4.5 BORELOG AVONDALE.GPJ 21/1/11

74 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: AVD-02 Hole Location: BH-AVD-02-Avondale SHEET 2 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Avondale JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 13/12/ HOLE FINISHED: 15/12/ DRILL METHOD: Open Barrel/Concentrix DRILLED BY: CW Drilling DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. YALDHURST FORMATION (Alluvial gravel and overbank silt) FLUID LOSS WATER CORE RECOVERY (%) 80 METHOD CASING TESTS PSD WS SAMPLES R.L. (m) -3.0 DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SP MOISTURE WEATHERING CONDITION W MD FC - 5.7m to 6m no recovery 5/8/ N=18 FC 67 STRENGTH/DENSITY CLASSIFICATION OPEN BARREL 65-7m to 7.5m no recovery 6/7/6 N=13 FC ML SILT with some sand, grey. Wet, low plasticity. Sand is fine. 40 SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling m to 9m no recovery 8.5 5/5/7 N= SW Fine to medium SAND, grey. Wet, well graded. 9.0 T+T_DATATEMPLATE.GDT eek ML SILT with some sand and trace gravel, grey. Wet, low plasticity. Sand is fine m to.5m no recovery 9.5 BORELOG AVONDALE.GPJ 21/1/11

75 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: AVD-02 Hole Location: BH-AVD-02-Avondale SHEET 3 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Avondale JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 13/12/ HOLE FINISHED: 15/12/ DRILL METHOD: Open Barrel/Concentrix DRILLED BY: CW Drilling DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. YALDHURST FORMATION (Alluvial gravel and overbank silt) FLUID LOSS WATER CORE RECOVERY (%) METHOD CASING TESTS SAMPLES R.L. (m) -8.0 DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL ML MOISTURE W MD CHRISTCHURCH FORMATION (Marine sand) 4/4/5 N=9 SP L.5 Fine to medium SAND with some silt, grey. Wet, poorly graded. - trace gravel 0 SP MD - trace gravel Fine SAND with some silt, grey. Wet, poorly graded. Silt is very thin beds. OPEN BARREL 65 6/11/21 N=32 80 WEATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling m to 13.5m no recovery 23/34/42 N=> VD T+T_DATATEMPLATE.GDT eek 73 /16/19 N=> End of borehole at 15mbgl. BORELOG AVONDALE.GPJ 21/1/11

76 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-03 Hole Location: BH-WAI-03-Wainoni SHEET 1 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: DRILL METHOD: DT DRILL FLUID: N/A HOLE STARTED: 30/11/ HOLE FINISHED: 1/12/ DRILLED BY: McMillan LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. HAND DIG FIL. (Potholed for service check and backfilled.) FLUID LOSS WATER CORE RECOVERY (%) METHOD CASING TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL MOISTURE WEATHERING CONDITION D STRENGTH/DENSITY CLASSIFICATION VL SHEAR STRENGTH FILL: Silty, fine to medium SAND, brown. Dry, well graded. (Borehole drilled through pre-dug and backfilled pothole.) YALDHURST FORMATION (Alluvial) 1/1/2 N=3 ML W VS SILT, brown/grey. Wet, low plasticity. Becomes grey with depth m to 1.65m no recovery FC 67 (kpa) DT COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling PSD /4/7 N= m to 2.5m no recovery 2.5 FC 92 DT SW W L Fine to medium SAND, grey. Wet, well graded /5/4 N= MD - 3.6m to 4.25m no recovery 4.0 T+T_DATATEMPLATE.GDT eek 46 DT FC 4/8/9 N= SP W Fine SAND, grey. Wet, poorly graded. 4.8m to 5.0m no recovery. 4.5 BORELOG WAINONI.GPJ /2/11

77 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-03 Hole Location: BH-WAI-03-Wainoni SHEET 2 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: DRILL METHOD: DT DRILL FLUID: N/A HOLE STARTED: 30/11/ HOLE FINISHED: 1/12/ DRILLED BY: McMillan LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. CHRISTCHURCH FORMATION (Coastal) FLUID LOSS WATER CORE RECOVERY (%) METHOD CASING TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SP W MD - trace fine gravel DT FC /13/16 N=29-5.8m to 6.0m no recovery PSD DT DT MOISTURE FC 50 9/13/16 N=29 D - 7.1m to 7.2m no recovery 67 WEATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling FC m to 8.5m no recovery 18/22/25 N= DT FC T+T_DATATEMPLATE.GDT eek 1/7/12 N=19 FC m to 9.8m no recovery BORELOG WAINONI.GPJ /2/11

78 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-03 Hole Location: BH-WAI-03-Wainoni SHEET 3 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: DRILL METHOD: DT DRILL FLUID: N/A HOLE STARTED: 30/11/ HOLE FINISHED: 1/12/ DRILLED BY: McMillan LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. CHRISTCHURCH FORMATION (Coastal) FLUID LOSS WATER CORE RECOVERY (%) METHOD 67 DT CASING TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SP MOISTURE W D Fine SAND, grey. Wet, poorly graded, homogeneous. 11/13/16 N= m to 11.1m no recovery 50 DT 16/14/18 N=32 DT DT m to 12.45m no recovery 63 12/17/17 N=34 50 WEATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling T+T_DATATEMPLATE.GDT eek 66 DT /23/26 N= m to 14.7m no recovery 14.5 End of borehole at 15mbgl. BORELOG WAINONI.GPJ /2/11

79 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-04 Hole Location: BH-WAI-04-Wainoni SHEET 1 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: Percussion HOLE STARTED: 26/11/ DRILL METHOD: DT HOLE FINISHED: 29/11/ DRILLED BY: McMillans DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. HAND DIG FILL. (Potholed for services check and backfilled.) FLUID LOSS WATER CORE RECOVERY (%) METHOD CASING TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SM MOISTURE WEATHERING CONDITION D L FILL: Silty, fine to medium SAND, brown. Dry, well graded. ( Borehole drilled through pre-dug and backfilled pothole.) SAMPLE BAGGED YALDHURST FORMATION 2/2/2 N=4 FC SM W Silty, fine SAND, grey. Wet, poorly graded m to 1.7m no recovery 58 STRENGTH/DENSITY DT CLASSIFICATION SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling PSD HYD /3/4 N= DT FC SW Fine to medium SAND, grey. Wet, well graded. 3.0 PSD 4/5/4 N= m to 4m no recovery 3.5 FC T+T_DATATEMPLATE.GDT eek 50 DT 3/2/2 N= m to 5.3m no recovery - trace fine gravel 4.5 BORELOG WAINONI.GPJ 19/1/11

80 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-04 Hole Location: BH-WAI-04-Wainoni SHEET 2 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: Percussion HOLE STARTED: 26/11/ DRILL METHOD: DT HOLE FINISHED: 29/11/ DRILLED BY: McMillans DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. YALDHURST FORMATION FLUID LOSS WATER CORE RECOVERY (%) METHOD CASING TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL GS MOISTURE WEATHERING CONDITION W STRENGTH/DENSITY L Sandy, fine to medium GRAVEL, grey. Wet, well graded, rounded. Sand is medium to coarse. DT FC 4/3/3 N=6-6m to 6.5m no recovery DT CLASSIFICATION SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling FC 2/3/2 N= SW GW MD Medium to coarse SAND with trace gravel, grey. Wet, well graded. Gravel is fine, rounded. Fine GRAVEL with some sand, grey. Wet well graded, rounded. Sand is medium to coarse m to 7.4m no recovery DT FC CHRISTCHURCH FORMATION SP Fine SAND, grey. Wet, poorly graded, homogeneous m to 8.4m no recovery 8//14 N= L 8.5 FC 50 DT T+T_DATATEMPLATE.GDT eek 2/4/4 N=8 FC MD - 9.0m to 9.55m no recovery 9.5 BORELOG WAINONI.GPJ 19/1/11

81 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-04 Hole Location: BH-WAI-04-Wainoni SHEET 3 OF 3 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: Percussion HOLE STARTED: 26/11/ DRILL METHOD: DT HOLE FINISHED: 29/11/ DRILLED BY: McMillans DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. CHRISTCHURCH FORMATION FLUID LOSS WATER CORE RECOVERY (%) METHOD 67 DT CASING FC TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SP MOISTURE WEATHERING W MD - very thin bed of silt 7/11/12 N=23 D -.4m to 11.1m no recovery 50 DT 19/17/19 N=36 MD DT 50 DT m to 12m no recovery m to 13.4m no recovery 5//12 N=22 VD 67 CONDITION STRENGTH/DENSITY CLASSIFICATION SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling T+T_DATATEMPLATE.GDT eek 0 DT 14/26/28 N=54 9//24 N= D m to 14.4m no recovery 14.5 End of borehole at 15mbgl. BORELOG WAINONI.GPJ 19/1/11

82 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-05 Hole Location: BH-WAI-05-Wainoni SHEET 1 OF 6 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 3/12/ HOLE FINISHED: 6/12/ DRILL METHOD: Open Barrel/Concentrix DRILLED BY: McMillans DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. HAND DIG FILL. (Potholed for services check and backfilled) FLUID LOSS WATER CORE RECOVERY (%) METHOD CASING TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL MOISTURE WEATHERING CONDITION D STRENGTH/DENSITY CLASSIFICATION VL SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling. FILL. Fine SAND with trace silt, brown. Dry, poorly graded. (Borehole drilled through pre-dug and backfilled pothole.) SAMPLE BAGGED YALDHURST FORMATION (Alluvial gravel and overbank silt) 0 0/0/2 N= ML W VS SILT with trace organics (wood) and sand, brown. Wet, low plasticity. Sand is fine OPEN BARREL 65 FC PSD WS very thin lens of fine sand FC very thin lens of fine sand m to 3m no recovery - very thin lens of fine sand 2/1/2 N=3 3.0 SP VL Fine SAND with trace silt, grey. Wet, poorly graded T+T_DATATEMPLATE.GDT eek 0 FC 4/6/14 N= FC SP MD Fine to medium SAND, grey. Wet, poorly graded. 4.5 BORELOG WAINONI.GPJ /2/11

83 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-05 Hole Location: BH-WAI-05-Wainoni SHEET 2 OF 6 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 3/12/ HOLE FINISHED: 6/12/ DRILL METHOD: Open Barrel/Concentrix DRILLED BY: McMillans DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. YALDHURST FORMATION (Alluvial gravel and overbank silt) FLUID LOSS WATER CORE RECOVERY (%) 0 METHOD CASING FC TESTS SAMPLES R.L. (m) -3.0 DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SP MOISTURE WEATHERING CONDITION W STRENGTH/DENSITY CLASSIFICATION MD SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling. Fine to medium SAND, grey. Wet, poorly graded SW Gravelly fine to medium SAND, grey. Wet, well graded. Gravel is fine to medium, rounded /5/5 N= 6.0 GW L Fine to medium GRAVEL with minor sand, grey. Wet, well graded. Sand is fine to medium CHRISTCHURCH FORMATION (Coastal sand) 0 OPEN BARREL SP MD Fine SAND, grey. Wet, poorly graded /9/21 N=30 FC FC 3/9/11 N= T+T_DATATEMPLATE.GDT eek SP Fine SAND with some silt, grey. Wet, poorly graded. 9.5 BORELOG WAINONI.GPJ /2/11

84 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-05 Hole Location: BH-WAI-05-Wainoni SHEET 3 OF 6 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 3/12/ HOLE FINISHED: 6/12/ DRILL METHOD: Open Barrel/Concentrix DRILLED BY: McMillans DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. CHRISTCHURCH FORMATION (Coastal sand) FLUID LOSS WATER CORE RECOVERY (%) METHOD CASING TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SP MOISTURE WEATHERING CONDITION W STRENGTH/DENSITY CLASSIFICATION MD SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling. Fine SAND with some silt, grey. Wet, poorly graded /6/12 N= OPEN BARREL SP Fine SAND, greyish black. Wet, poorly graded SP D 13.0 Fine SAND, dark grey. Wet, poorly graded /14/17 N= T+T_DATATEMPLATE.GDT eek BORELOG WAINONI.GPJ /2/11

85 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-05 Hole Location: BH-WAI-05-Wainoni SHEET 4 OF 6 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 3/12/ HOLE FINISHED: 6/12/ DRILL METHOD: Open Barrel/Concentrix DRILLED BY: McMillans DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. CHRISTCHURCH FORMATION (Coastal sand) FLUID LOSS WATER CORE RECOVERY (%) 0 METHOD CASING TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SP MOISTURE WEATHERING CONDITION W STRENGTH/DENSITY D Fine SAND, dark grey. Wet, poorly graded. 0 8//29 N=49 0 OPEN BARREL 65 - trace shelly material - very thin layer of organics 0 6/19/ N=39 0 CLASSIFICATION SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling T+T_DATATEMPLATE.GDT eek SP Fine SAND with some silt and trace shelly material, grey. Wet, poorly graded BORELOG WAINONI.GPJ /2/11

86 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-05 Hole Location: BH-WAI-05-Wainoni SHEET 5 OF 6 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 3/12/ HOLE FINISHED: 6/12/ DRILL METHOD: Open Barrel/Concentrix DRILLED BY: McMillans DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. CHRISTCHURCH FORMATION (Coastal sand) FLUID LOSS WATER CORE RECOVERY (%) 0 METHOD CASING TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SP MOISTURE WEATHERING CONDITION W STRENGTH/DENSITY CLASSIFICATION D SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling. Fine SAND with some silt and trace shelly material, grey. Wet, poorly graded..5 SP Fine SAND, grey. Wet, poorly graded thin lens of shelly material //18 N= OPEN BARREL some silt 9/12/28 N= T+T_DATATEMPLATE.GDT eek SP Fine SAND with some silt, grey. Wet, poorly graded BORELOG WAINONI.GPJ /2/11

87 TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: WAI-05 Hole Location: BH-WAI-05-Wainoni SHEET 6 OF 6 PROJECT: Darfield Earthquake - EQC Ground Investigations LOCATION: Wainoni JOB No: CO-ORDINATES R.L. DATUM GEOLOGICAL m Lyttleton 1937 DRILL TYPE: HOLE STARTED: 3/12/ HOLE FINISHED: 6/12/ DRILL METHOD: Open Barrel/Concentrix DRILLED BY: McMillans DRILL FLUID: N/A LOGGED BY: ZDP CHECKED: BMcD ENGINEERING DESCRIPTION GEOLOGICAL UNIT, GENERIC NAME, ORIGIN, MINERAL COMPOSITION. CHRISTCHURCH FORMATION (Coastal sand) FLUID LOSS WATER CORE RECOVERY (%) 0 METHOD CASING TESTS SAMPLES R.L. (m) DEPTH (m) GRAPHIC LOG CLASSIFICATION SYMBOL SP MOISTURE WEATHERING CONDITION W STRENGTH/DENSITY CLASSIFICATION D SHEAR STRENGTH (kpa) COMPRESSIVE STRENGTH (MPa) DEFECT SPACING (mm) SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling. Fine SAND with some silt, grey. Wet, poorly graded SP Fine SAND, grey. Wet, poorly graded ML VS SILT, grey. Wet, low plasticity OPEN BARREL N= m to 29.2m silt is dilatent T+T_DATATEMPLATE.GDT eek 1/1/1 N= End of borehole at 29.9mbgl. BORELOG WAINONI.GPJ /2/11

88 Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix C: Borehole Logs T&T Ref. REP-AVD-FAC Earthquake Commission February 11

89 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix D: Borehole Core Photographs

90 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix D: Borehole Core Photographs Report prepared for: EARTHQUAKE COMMISSION Report prepared by: TONKIN & TAYLOR LTD Distribution: EARTHQUAKE COMMISSION TONKIN & TAYLOR LTD (FILE) 3 copies 1 copy February 11 T&T Ref: REP-AVD-FAC Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix D: Borehole Core Photographs T&T Ref. REP-AVD-FAC Earthquake Commission February 11

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92 Appendix D: Borehole Core Photographs Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix D: Borehole Core Photographs T&T Ref. REP-AVD-FAC Earthquake Commission February 11

93 BH-AVD m m

94 7.5-.7m m

95 m BH-AVD m

96 m m

97 m m

98 BH-WAI m BH-WAI m

99 BH-WAI m m

100 m m

101 m m

102 m m

103 m m

104 m

105 Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix D: Borehole Core Photographs T&T Ref. REP-AVD-FAC Earthquake Commission February 11

106 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix E: Geophysical Testing

107 REPORT Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix E: Geophysical Testing Report prepared for: EARTHQUAKE COMMISSION Report prepared by: TONKIN & TAYLOR LTD Distribution: EARTHQUAKE COMMISSION TONKIN & TAYLOR LTD (FILE) 3 copies 1 copy February 11 T&T Ref: REP-AVD-FAC Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix E: Geophysical Testing T&T Ref. REP-AVD-FAC Earthquake Commission February 11

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109 Appendix E: Geophysical Testing Darfield Earthquake Recovery Geotechnical Factual Report Avondale Appendix E: Geophysical Testing T&T Ref. REP-AVD-FAC Earthquake Commission February 11

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