TGE15051-1 Geotechnical Level 1 Supervision Report Frostdale Civil Contractors 24/03/2015 TOTAL GEOTECHNICS Adelaide, Ballarat, Brisbane, Hallam, Hoppers Crossing, Traralgon, Warrnambool
Report No: TGE15051-1 24/03/2015 Contents 1. Introduction... 3 2. Scope of Works... 3 3. Inspections/Supervision... 3 4. Testing... 4 5. Conclusion... 5 6. Limitation of This Report... 5 Appendix 1 Site Plan... 6 Appendix 2 Testing Summary... 8 Appendix 3 Site Photographs... 14 Appendix 4 NATA Lab Results... 19 2
Report No: TGE15051-1 24/03/2015 1. Introduction Total Geotechnics has been engaged by Frostdale Civil Contractors on the 1 st December 2014, to provide Level 1 Geotechnical Supervision on 46-48 Muller Street, Redland Bay Project (Refer Appendix 1 Site Plans & Diagrams and Appendix 3 Site Photographs). This Level 1 report presents the results of supervision activities, compaction and moisture control, material placement and laboratory testing for ground works undertaken at 46-48 Frostdale Civil Contractors. This report covers construction activities carried out from the 1 st December to 18 th December 2014. 2. Scope of Works The scope of works involved the placement of On-site General Fill. Fill Material was placed in Level one fill areas, in accordance with AS 3798-2007, Guidelines on earthworks for commercial and residential developments. The level of FILL to be placed is less than 5m as per AS3798 Section 1.1. It has been a requirement of the Geotechnical testing Authority Total Geotechnics to follow Earthworks Guidelines and site plans specifications received by Frostdale Civil Contractors Pty Ltd. General fill material used for the construction was locally sourced on-site and predominantly comprising of Silt, Sand and Clay type material. 3. Inspections/Supervision Full time Level 1 supervision and inspection were undertaken between; 1 st December to 18 th December 2014 including supervision and inspections regarding the stripping and removal as per AS3798 Section 3 shall have removed: Organic soils, such as topsoils, severely root affected subsoils and peat; Contaminated soils is part of the brief; Materials which undergo volume change or loss of strength when disturbed and exposed to moisture; Silts, or materials that have deleterious engineering properties of silt; Other materials with properties that are unsuitable for the forming of structural fill; Fill that contains wood, metal plastic, boulders or other deleterious material, in sufficient proportions to affect the required performance of the fill. The maximum particle size of any rocks or other lumps, within the layer has not exceeded two thirds ( 2 / 3) of the compacted layer thickness. The lots inspected were essentially homogeneous in relation to material type and moisture condition, rolling response and compaction technique which has been used for the assessment of relative compaction of an area of work (AS3798 Section 1.2.8). 3
Report No: TGE15051-1 24/03/2015 Prior to placement any existing filled ground, for which the conditions of the placement are not adequately documented it has not been assumed to have been of either standard compaction or of the composition adequate to support fill and any material has been removed (AS3798 Section 2o). 4. Testing The project was classified as Residential Development for the purposes of AS3798-2007 (refer Table 5.1), thereby requiring a minimum compaction result of 95% Standard Compaction for the cohesive soils (AS 1289 5.7.1 & 5.1.1). AS3798-2007 further requires a minimum of 3 tests per day be undertaken throughout the placement of the fill (refer AS3798 Table 8.1) Tests were performed using a Nuclear Density Gauge for field density determination AS 1289.5.8.1. Testing was completed at a rate of 3 field density tests per day s production as based on the minimum requirements of AS 3798 2007 and taken from each layer of fill placed. The filling operation was undertaken between 1 st December to 18 th December 2014. The material was Site-derived General Fill. Material was placed in approximately 300mm loose layers, rolling effort with on-site 825 Compactor (to seal of each layer of placed General Fill material) to a compacted 200mm layer that achieved 95% Standard Compaction which met Australian Standards specifications. This was considered the best method to achieve compaction using the plant and machinery available. A total of No.29 Field density and Laboratory Hilf Compaction tests were performed. The reports verify the achievement of the minimum density requirement of 95% Standard Compaction throughout the full depth area, with each layer tested accordingly. All test results were provided to our client Frostdale Civil Contractors for inclusion within their internal quality system (Refer to Appendix B Summary of Results). At the completion of the structural layers any material within 150mm of permanent subgrade level in cuttings was subjected to test rolling; test rolling was undertaken and the layers withstood test rolling without visible deformation or springing (AS 3798 Section 5.5). 4
Report No: TGE15051-1 24/03/2015 The lots that are covered by this Level 1 Supervision report are listed in the table below. Table 1 - Lots under Level 1 Supervision Lot,1 Lot,2 Lot,5 Lot,6 Lot,7 Lot,8 Lot,14 Lot,15 Lot,16 Lot,31 Lot,32 Lot,33 Lot,34 Lot,35 Road #1 Road #3 Bio Retention Basin Dam Wall 5. Conclusion On the completion of the earthworks and after analysing the materials used, it has been concluded that the filling procedure conducted by Frostdale Civil Contractors satisfied the requirements of AS 3798 in regards to the placement of fill materials on a project under Level 1 Supervision and in accordance with the specification as provided to Total Geotechnics. This report has been prepared for the benefit of our client with respect to the particular brief given to us and it may not be relied upon in other contexts or for any other purpose without our prior review and agreement. No responsibility for this report will be taken by Total Geotechnics if it is altered in any way, or not reproduced in full. 6. Limitation of This Report This Level 1 Report is valid for following completion of Level 1 Supervision. Total Geotechnics Pty Ltd does not accept responsibility for any distortion or deviations of measurements as reported at the given time. This report will be considered invalid if: Any works were conducted on site without the supervision of a Total Geotechnics Pty Ltd technician. Any other unforeseeable event and any event outside of time as described above. Prepared by: Authorised by: Albert Roelofs (Brisbane Laboratory Manager) Geotechnical Officer- Nata Accreditation Mob: 0419 482 206 Alvin Tan (BE Civil and Infrastructure) GradIEAust Geotechnical Engineer Mob: 0419 617 361 5
Report No: TGE15051-1 24/03/2015 Appendix 1 Site Plan Level 1 Supervision 6
Report No: TGE15051-1 24/03/2015 Level 1 Supervision 7
Report No: TGE15051-1 20/03/2015 Appendix 2 Testing Summary Sample no. & Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark Report no. RL: (%) Sample No. 26 Easting: 2766.408 RL:23.839 General Fill 03-12-2014 0 97.5% 0.5% Report No. 26 Northing:500.653 Wetter Sample No. 27 Easting: 2771.319 RL:24.071 General Fill 03-12-2014 0 98.5% 1% Report No. 26 Northing:5023.258 Wetter Sample No. 28 Easting: 2760.937 RL:22.718 General Fill 03-12-2014 0 96% 1% Report No. 26 Northing:5013.146 Wetter Sample No. 29 Easting: 2761.594 RL:23.122 General Fill 04-12-2014 0 97.5% 0.5% Report No. 27 Northing:5013.75 Drier Sample No. 30 Easting: 2746.075 RL:22.222 General Fill 04-12-2014 0 97.5% 2% Report No. 27 Northing:5044.485 Drier Sample No. 31 Easting: 2756.005 RL:23.429 General Fill 04-12-2014 0 96.5% 1% Report No. 27 Northing:5054.968 Drier 8
Report No: TGE15051-1 20/03/2015 Sample no. & Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark Report no. RL: (%) Sample No. 32 Easting: 2777.285 RL:25.042 General Fill 04-12-2014 0 95.5% 1% Report No. 27 Northing:5038.008 Wetter Sample No. 33 Easting: 22780.273 RL:24.999 General Fill 04-12-2014 0 97% 0.5% Report No. 27 Northing:5008.878 Drier Sample No. 48 Easting: 2769.178 RL:24.537 General Fill 05-12-2014 0 95.5% 0% Report No. 31 Northing:5016.522 OMC Sample No. 49 Easting: 2765.229 RL:24.581 General Fill 05-12-2014 0 99% 0.5% Report No. 31 Northing:5037.482 Drier Sample No. 50 Easting: 2742.521 RL:22.654 General Fill 05-12-2014 0 96.5% 1.5% Report No. 31 Northing:5072.847 Wetter Sample No. 62 Easting: 2799.649 RL:24.930 General Fill 11-12-2014 0 98.5% 0% Report No. 35 Northing:4919.763 OMC 9
Report No: TGE15051-1 20/03/2015 Sample no. & Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark Report no. RL: (%) Sample No. 63 Easting: 2801.950 RL:25.680 General Fill 11-12-2014 0 98.5% 0% Report No. 35 Northing:4897.857 OMC Sample No. 64 Easting: 2785.525 RL:24.680 General Fill 11-12-2014 0 99% 0.5% Report No. 35 Northing:4918.381 Wetter Sample No. 90 Dam Wall, Centre of RL:16.700 General Fill 15-12-2014 0 99.5% 0.5% Report No. 45 Wall. 3m East of Outlet Pipe Drier Sample No. 91 Easting: 2654.80 RL:21.33 General Fill 15-12-2014 0 100% 0% Report No. 46 Northing:4963.44 OMC Sample No. 92 Easting: 2646.872 RL:21.33 General Fill 15-12-2014 0 97% 1% Report No. 46 Northing:4941.264 Drier Sample No. 101 Sediment Basin RL:19.680 General Fill 16-12-2014 0 97.5% 1% Report No. 50 Easting: 2666.140 Northing:4986.881 Drier 10
Report No: TGE15051-1 20/03/2015 Sample no. & Report no. Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark RL: (%) Sample No. 102 Easting: 2652.116 RL:24.960 General Fill 16-12-2014 0 98.5%4 2% Report No. 50 Northing:4887.539 Drier Sample No. 103 Easting: 2681.255 RL:25.750 General Fill 16-12-2014 0 101% 1% Report No. 50 Northing:4891.581 Drier Sample No. 104 Dam Wall Centre line RL:16.70 General Fill 16-12-2014 0 98.5%1 1.5% Report No. 51 Sample No. 105 Of Wall. 30m West -Outlet Pipe Easting: 2667.434 Drier RL:25.790 General Fill 17-12-2014 0 98.5% 1% Report No. 52 Northing:4893.633 Wetter Sample No. 106 RL:26.610 General Fill 17-12-2014 0 99% 0.5% Report No. 52 Sample No. 107 Easting: 2698.698 Northing:4894.932 Wetter RL:25.590 General Fill 17-12-2014 0 96.5% 1.5% Report No. 52 Easting: 2780.757 Northing:5058.415 Wetter 11
Report No: TGE15051-1 20/03/2015 Sample no. & Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark Report no. RL: (%) Sample No. 108 Dam Wall Centre of RL:16.99 General Fill 17-12-2014 0 98.5% 1% Report No. 53 Wall. 25m North of Southern Wetter End Wall. Sample No. 121 Easting: 2689.588 RL:31.51 General Fill 18-12-2014 0 99.5% 1% Report No. 64 Northing:4707.692 Wetter Sample No. 122 Easting: 2684.255 RL:31.28 General Fill 18-12-2014 0 98.5% 0.5% Report No. 64 Northing:4690.517 Drier Sample No. 123 Easting: 2692.056 RL:31.65 General Fill 18-12-2014 0 101% 0.5% Report No. 64 Northing:4690.567 Wetter Sample No. 124 Dam Wall Centre Of RL:17.10 General Fill 18-12-2014 0 99.5% 1.5% Report No. 65 Wall. 10m West- Out pipe Drier 12
Report No: TGE15051-1 20/03/2015 Sample no. & Report no. Location Layer RL: Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation (%) Remark Sample No. 243 Lot,14 RL:31.529 General Fill 18-12-2014 0 99% 0.5% Pass Report No. 111 Easting:2674.073 Northing:4721.045 Wetter Sample No. 244 Lot, 14 RL:30.195 General Fill 18-12-2014 0 100% 0.0% Pass Report No. 111 Easting:2668.022 Northing:4720.079 OMC 13
Report No: TGE15051-1 20/03/2015 Appendix 3 Site Photographs 01/12/2014. Picture no.1 Road #1, Stripped Surface of Top Soil & Organic Materials. 01/12/2014, Road #1, Lots 31,32,33,34 & 35. Stripping of Top Soil & Organic Materials. 14
Report No: TGE15051-1 20/03/2015 03/12/2014. Lot 33, Removal of Tree Stump. 15
Report No: TGE15051-1 20/03/2015 03/12/2014. Lot 33, Removal of Tree Stump. 10/12/2014. Stripping of Dam Wall. 16
Report No: TGE15051-1 20/03/2015 11/12/2014. Dam Wall Proof Roll. 17
Report No: TGE15051-1 20/03/2015 11/12/2014. Dam Wall Proof Roll. 12/03/2014. Compaction & Moisture Conditioning of Dam Wall Fill Materials 18
Report No: TGE15051-1 20/03/2015 Appendix 4 NATA Lab Results 19
TGE15051-2 Geotechnical Level 1 Supervision Report Lot 28- Muller Street, Redland Bay. Frostdale Civil Contractors June 2015 TOTAL GEOTECHNICS Adelaide, Ballarat, Brisbane, Hallam, Hoppers Crossing, Traralgon, Warrnambool
Lot 28- Muller Street, Redland Bay. Report No: TGE15051-2 June 2015 Contents 1. Introduction... 3 2. Scope of Works... 3 3. Inspections/Supervision... 3 4. Testing... 4 5. Conclusion... 5 6. Limitation of This Report... 5 Appendix 1 Site Plan... 6 Appendix 2 Testing Summary... 7 Appendix 3 Site Photographs... 8 Appendix 4 NATA Lab Results... 14 2
Lot 28- Muller Street, Redland Bay. Report No: TGE15051-2 June 2015 1. Introduction Total Geotechnics has been engaged by Frostdale Civil Contractors on the 26 th June 2015, to provide Level 1 Geotechnical Supervision on Lot 28- Muller Street, Redland Bay Project (Refer Appendix 1 Site Plans & Diagrams and Appendix 3 Site Photographs). This Level 1 report presents the results of supervision activities, compaction and moisture control, material placement and laboratory testing for ground works undertaken at Lot 28 previous Septic tank area. Removal size was approximately 5.5m in length, 4m in width and 2m in depth from existing surface by Frostdale Civil Contractors. This report covers construction activities carried out for one day s level one filling on the 26 th June 2015. 2. Scope of Works The scope of works involved the placement of On-site General Fill. Fill Material was placed in Level one fill areas, in accordance with AS 3798-2007, Guidelines on earthworks for commercial and residential developments. The level of FILL to be placed is less than 5m as per AS3798 Section 1.1. It has been a requirement of the Geotechnical testing Authority Total Geotechnics to follow Earthworks Guidelines and site plans specifications received by Frostdale Civil Contractors Pty Ltd. General fill material used for the construction was locally sourced on-site and predominantly comprising of Silt, Sand and Clay type material. 3. Inspections/Supervision Full time Level 1 supervision and inspection were undertaken was; 26 th June 2015, including supervision and inspections regarding the stripping and removal as per AS3798 Section 3 shall have removed: Organic soils, such as topsoils, severely root affected subsoils and peat; Contaminated soils is part of the brief; Materials which undergo volume change or loss of strength when disturbed and exposed to moisture; Silts, or materials that have deleterious engineering properties of silt; Other materials with properties that are unsuitable for the forming of structural fill; Fill that contains wood, metal plastic, boulders or other deleterious material, in sufficient proportions to affect the required performance of the fill. The maximum particle size of any rocks or other lumps, within the layer has not exceeded two thirds ( 2 / 3) of the compacted layer thickness. 3
Lot 28- Muller Street, Redland Bay. Report No: TGE15051-2 June 2015 The lots inspected were essentially homogeneous in relation to material type and moisture condition, rolling response and compaction technique which has been used for the assessment of relative compaction of an area of work (AS3798 Section 1.2.8). Prior to placement any existing filled ground, for which the conditions of the placement are not adequately documented it has not been assumed to have been of either standard compaction or of the composition adequate to support fill and any material has been removed (AS3798 Section 2o). 4. Testing The project was classified as Residential Development for the purposes of AS3798-2007 (refer Table 5.1), thereby requiring a minimum compaction result of 95% Standard Compaction for the cohesive soils (AS 1289 5.7.1 & 5.1.1). AS3798-2007 further requires a minimum of 3 tests per day be undertaken throughout the placement of the fill (refer AS3798 Table 8.1) Tests were performed using a Nuclear Density Gauge for field density determination AS 1289.5.8.1. Testing was completed at a rate of 3 field density tests per day s production as based on the minimum requirements of AS 3798 2007 and taken from each layer of fill placed. The filling operation was undertaken on the 26 th June 2015. The material was Site-derived General Fill. Material was placed in approximately 300mm loose layers, rolling effort with on-site Compactor (to seal of each layer of placed General Fill material) to a compacted 200mm layer that achieved 95% Standard Compaction which met Australian Standards specifications. This was considered the best method to achieve compaction using the plant and machinery available. A total of No.3 Field density and Laboratory Hilf Compaction tests were performed. The reports verify the achievement of the minimum density requirement of 95% Standard Compaction throughout the full depth area, with each layer tested accordingly. All test results were provided to our client Frostdale Civil Contractors for inclusion within their internal quality system (Refer to Appendix B Summary of Results). At the completion of the structural layers any material within 150mm of permanent subgrade level in cuttings was subjected to test rolling; test rolling was undertaken and the layers withstood test rolling without visible deformation or springing (AS 3798 Section 5.5). 4
Lot 28- Muller Street, Redland Bay. Report No: TGE15051-2 June 2015 The lots that are covered by this Level 1 Supervision report are listed in the table below. Table 1 - Lots under Level 1 Supervision Lot,28 5. Conclusion On the completion of the earthworks and after analysing the materials used, it has been concluded that the filling procedure conducted by Frostdale Civil Contractors satisfied the requirements of AS 3798 in regards to the placement of fill materials on a project under Level 1 Supervision and in accordance with the specification as provided to Total Geotechnics. This report has been prepared for the benefit of our client with respect to the particular brief given to us and it may not be relied upon in other contexts or for any other purpose without our prior review and agreement. No responsibility for this report will be taken by Total Geotechnics if it is altered in any way, or not reproduced in full. 6. Limitation of This Report This Level 1 Report is valid for following completion of Level 1 Supervision. Total Geotechnics Pty Ltd does not accept responsibility for any distortion or deviations of measurements as reported at the given time. This report will be considered invalid if: Any works were conducted on site without the supervision of a Total Geotechnics Pty Ltd technician. Any other unforeseeable event and any event outside of time as described above. Prepared by: Authorised by: Albert Roelofs (Brisbane Laboratory Manager) Geotechnical Officer- Nata Accreditation Mob: 0419 482 206 Alvin Tan (BE Civil and Infrastructure) GradIEAust Geotechnical Engineer Mob: 0419 617 361 5
Lot 28- Muller Street, Redland Bay. Report No: TGE15051-2 June 2015 Appendix 1 Site Plan Lot 28 Level 1 Supervision 6
Report No: TGE15051-2 June 2015 Appendix 2 Testing Summary Sample no. & Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark Report no. RL: (%) Sample No. 252 Report No. 115 21m off West Boundary 2m off South Boundary RL:26.90 General Fill 26-06-2015 0 99% 0.5% Wetter Sample No. 253 Report No. 115 22m off West Boundary 1m off South Boundary RL:27.30 General Fill 26-06-2015 0 98.5% 1.5% Wetter Sample No. 254 Report No. 115 22m off West Boundary 3m off South Boundary RL:27.68 General Fill 26-06-2015 0 98.5% 2% Wetter 7
Report No: TGE15051-2 June 2015 Appendix 3 Site Photographs Figure 1, Lot 28 Stripped surface of existing Septic Tank Area. 8
Report No: TGE15051-2 June 2015 Figure 2, Lot 28 Stockpile of Level one fill material 9
Report No: TGE15051-2 June 2015 Figure 3, Lot 28 Compacting fill layer 10
Report No: TGE15051-2 June 2015 Figure 4, Lot 28 Compaction of Level one fill Material 11
Report No: TGE15051-2 June 2015 Figure 5, Removal of Existing Roof water pipe. 12
Report No: TGE15051-2 June 2015 Figure 6, Lot 28 Stockpile of Uncontrolled materials and rubbish. 13
Report No: TGE15051-2 June 2015 Appendix 4 NATA Lab Results 14
Report No: TGE15051-2 June 2015 15