REPORT Earthquake Commission Christchurch Earthquake Recovery Geotechnical Factual Report Bryndwr Appendix C: Borehole Logs
REPORT Earthquake Commission Christchurch Earthquake Recovery Geotechnical Factual Report Bryndwr Appendix C: Borehole Logs Report prepared for: EARTHQUAKE COISSION Report prepared by: Tonkin & Taylor LTD Distribution: EARTHQUAKE COISSION Tonkin & Taylor LTD (FILE) 1 copy 1 copy December 11 T&T Ref: REP-BYR-FAC Christchurch Earthquake Recovery Geotechnical Factual Report Bryndwr Appendix C: Borehole Logs T&T Ref. REP-BYR-FAC Earthquake Commission December 11
Appendix C: Borehole Logs Summary Sheet Bryndwr BYR Borehole ID Depth (m) Location (me) Location (mn) Ground level R.L ethod Drilling Company BH-BYR-01 19.48 2478281.1 743946.61 9.79 Dual tube cillans BH-BYR-02 19.80 2477924.18 744822.34 13.02 Sonic DCN Christchurch Earthquake Recovery Geotechnical Factual Report Bryndwr Appendix C: Borehole Logs T&T Ref. REP-BYR-FAC Earthquake Commission December 11
TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: BYR 01 Hole Location: 37 Strowan Rd SHEET 1 OF 4 PROJECT: CHRISTCHURCH 11 EARTHQUAKE LOCATION: BRYNDR JOB No: 00.30 CO-ORDINATES R.L. DATU GEOLOGICAL 743946.61 mn 2478281.1 me 9.79 m NZG DRILL TYPE: Direct Push HOLE STARTED: 4/7/11 DRILL ETHOD: Dual Tube HOLE FINISHED: 6/7/11 DRILLED BY: cillan DRILL FLUID: N/A LOGGED BY: CP/TH ENGINEERING DESCRIPTION CHECKED: RAP GEOLOGICAL UNIT, GENERIC NAE, ORIGIN, INERAL COPOSITION. HAND DIG FILL. (Potholed for services check and backfilled.) FLUID LOSS ATER CORE RECOVERY (%) ETHOD CASING TESTS SAPLES R.L. (m) 9. DEPTH (m) GRAPHIC LOG CLASSIFICATION SYBOL OISTURE EATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION SHEAR STRENGTH (kpa) COPRESSIVE STRENGTH (Pa) 2 0 1 2 DEFECT SPACING (mm) 2 0 00 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: Borehole drilled through pre-dug and backfilled pothole. 0 PRE-DUG 0. 0. 9.0 1.0 1.0 CORE LOSS 8. 1.2 to 1.8m no recovery 1. 1. YALDHURST EBER OF THE SPRINGSTON FORATION (ALLUVIAL). 8 8.0 2.0 D Sandy, fine to coarse GRAVEL, yellowish brown. edium dense, moist. Gravel is subrounded. Sand is fine to medium. 1.9 to 3m no recovery 2.0 7. 2. 2. 3/3//4/8/9 N=26 7.0 80 PSD-S 6. 3.0 D Fine to coarse GRAVEL with some sand, grey. Dense, wet. Gravel is subrounded. Sand is fine to medium. 3.0 3. 3. 3.6 to 3.7m no recovery 9/9/9/ /11/11 N=41 6.0 4.0 4.0 T+T_DATATEPLATE.GDT dlm..0 4. VD 4.8 to.3m no recovery. Becoming very dense 4. BORELOG 6494.000 BOREHOLE LOGS.GPJ 16/12/11
TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: BYR 01 Hole Location: 37 Strowan Rd SHEET 2 OF 4 PROJECT: CHRISTCHURCH 11 EARTHQUAKE LOCATION: BRYNDR JOB No: 00.30 CO-ORDINATES R.L. DATU GEOLOGICAL 743946.61 mn 2478281.1 me 9.79 m NZG DRILL TYPE: Direct Push HOLE STARTED: 4/7/11 DRILL ETHOD: Dual Tube HOLE FINISHED: 6/7/11 DRILLED BY: cillan DRILL FLUID: N/A LOGGED BY: CP/TH ENGINEERING DESCRIPTION CHECKED: RAP GEOLOGICAL UNIT, GENERIC NAE, ORIGIN, INERAL COPOSITION. YALDHURST EBER OF THE SPRINGSTON FORATION (ALLUVIAL). FLUID LOSS ATER CORE RECOVERY (%) ETHOD 91 CASING TESTS /19/11/ 14/14 for 7mm N> PSD-S SAPLES R.L. (m) 4. 4.0 DEPTH (m). GRAPHIC LOG CLASSIFICATION SYBOL OISTURE EATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION VD SHEAR STRENGTH (kpa) COPRESSIVE STRENGTH (Pa) 2 0 1 2 DEFECT SPACING (mm) 2 0 00 SOIL DESCRIPTION Soil type, minor components, plasticity or particle size, colour. ROCK DESCRIPTION Substance: Defects: 4.8 to.3m no recovery Rock type, particle size, colour, minor components. Type, inclination, thickness, roughness, filling. Fine to coarse GRAVEL with some sand, grey. Very dense, wet. Gravel is subrounded. Sand is fine to medium. - 0mm layer of sandy GRAVEL. Gravel is fine to coarse, sub-rounded. Sand is fine to medium. 6.0 D 6.0 to 6.m no recovery. Becoming medium dense 6.0 7/7///4/4 N=18 3. 6. 6. 93 3.0 7.0 S D - contains some buried wood Fine to medium SAND with minor silt, bluish grey. edium dense, wet. 7.0 2. - contains some silt 2/1/3/3/4/ N=1 7. L St SILT with minor sand, bluish grey. Stiff, moist, low plasticity. Sand is fine. 7. 2.0 8.0-2mm lens of medium sand 8.0 1. 8. F - contains trace organics, becoming brownish grey - becoming firm 8. 1/0/2/1/2/3 N=8 1.0 - organics absent, becoming bluish grey T+T_DATATEPLATE.GDT dlm 0. 0.0 9.0 9. S D Fine to medium SAND with minor silt, grey. Dense, wet. 9.0 9. BORELOG 6494.000 BOREHOLE LOGS.GPJ 16/12/11
TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: BYR 01 Hole Location: 37 Strowan Rd SHEET 3 OF 4 PROJECT: CHRISTCHURCH 11 EARTHQUAKE LOCATION: BRYNDR JOB No: 00.30 CO-ORDINATES R.L. DATU GEOLOGICAL 743946.61 mn 2478281.1 me 9.79 m NZG DRILL TYPE: Direct Push HOLE STARTED: 4/7/11 DRILL ETHOD: Dual Tube HOLE FINISHED: 6/7/11 DRILLED BY: cillan DRILL FLUID: N/A LOGGED BY: CP/TH ENGINEERING DESCRIPTION CHECKED: RAP GEOLOGICAL UNIT, GENERIC NAE, ORIGIN, INERAL COPOSITION. YALDHURST EBER OF THE SPRINGSTON FORATION (ALLUVIAL). FLUID LOSS ATER CORE RECOVERY (%) ETHOD CASING TESTS 3//7/ 9/9/ N=3 SAPLES R.L. (m) DEPTH (m) -0.. GRAPHIC LOG CLASSIFICATION SYBOL S OISTURE EATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION D SHEAR STRENGTH (kpa) COPRESSIVE STRENGTH (Pa) 2 0 1 2 DEFECT SPACING (mm) 2 0 00 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 with minor silt, grey. Dense, wet.. 4/4//6/4/4 N=19-1.0 11.0-1. L SP St D SILT with minor sand, grey. Stiff, moist, low plasticity. Sand is fine. - 1mm lens of fine to medium sand Fine SAND with some silt, bluish grey. edium dense, wet. 11.0 11. -2.0 11. 12.0 - contains minor silt. Sand becoming fine to medium. 12.0 /4/16/ 7/6/8 N=37-2. 12. 12. -3.0 13.0 13.0-3. D - becoming dense 8/9/7/8/8/11 N=34 13. 13. -4.0 T+T_DATATEPLATE.GDT dlm CHRISTCHURCH FORATION (ARINE & ESTUARINE) 47 3/3/2/1/1/2 N=6 14.0-4. 14. -.0 1 SP SP L L L F 14.0 to 14.4m no recovery edium SAND, dark grey. Loose, wet. Fine SAND with minor silt, bluish grey. Loose, wet. Contains some shells. SILT with some sand, bluish grey. Firm, wet, low plasticity. 14.0 14. BORELOG 6494.000 BOREHOLE LOGS.GPJ 16/12/11
TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: BYR 01 Hole Location: 37 Strowan Rd SHEET 4 OF 4 PROJECT: CHRISTCHURCH 11 EARTHQUAKE LOCATION: BRYNDR JOB No: 00.30 CO-ORDINATES R.L. DATU GEOLOGICAL 743946.61 mn 2478281.1 me 9.79 m NZG DRILL TYPE: Direct Push HOLE STARTED: 4/7/11 DRILL ETHOD: Dual Tube HOLE FINISHED: 6/7/11 DRILLED BY: cillan DRILL FLUID: N/A LOGGED BY: CP/TH ENGINEERING DESCRIPTION CHECKED: RAP GEOLOGICAL UNIT, GENERIC NAE, ORIGIN, INERAL COPOSITION. CHRISTCHURCH FORATION (ARINE & ESTUARINE) FLUID LOSS ATER CORE RECOVERY (%) ETHOD CASING TESTS SAPLES R.L. (m) -. DEPTH (m) GRAPHIC LOG CLASSIFICATION SYBOL L OISTURE EATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION F SHEAR STRENGTH (kpa) COPRESSIVE STRENGTH (Pa) 2 0 1 2 DEFECT SPACING (mm) 2 0 00 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. SILT with some sand, bluish grey. Firm, wet, low plasticity. 1. 1. 1.6 to 1.8m no recovery 13/14/ 14/16 for 7mm N> -6.0 16.0 16.0 RICCARTON GRAVELS EQUIVALENT 78 PSD S -6. 16. VD Fine to coarse GRAVEL with some sand and trace silt, yellowish brown. Very dense, wet. Gravel is subrounded. Sand is fine to medium. 16. 16.6 to 17.3m no recovery -7.0 D - becoming dense 6/8/6/ 7/9/ N=32 17.0 17.0-7. 87-8.0 17. 17. 14/13/ 12/12 for 7mm N> 18.0-8. VD 18.0 to 18.3m no recovery. Becoming very dense. 18.0 18. 18. 89 PSD-S -9.0 19.0 19.0 19.1 to 19.48m no recovery T+T_DATATEPLATE.GDT dlm 12/18/ /30 for mm N> -9. 19. -.0 End of borehole at 19.48mbgl. Open standpipe piezometer installed. Please see attached diagram in Appendix C. 19. BORELOG 6494.000 BOREHOLE LOGS.GPJ 16/12/11
TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: BYR 02 Hole Location: 4 Condell Ave SHEET 1 OF 4 PROJECT: CHRISTCHURCH 11 EARTHQUAKE LOCATION: BRYNDR JOB No: 00.30 CO-ORDINATES R.L. DATU GEOLOGICAL 744822.34 mn 2477924.18 me 13.02 m NZG DRILL TYPE: Direct Push HOLE STARTED: //11 DRILL ETHOD: Sonic Vibration HOLE FINISHED: 6//11 DRILLED BY: DCN DRILL FLUID: N/A LOGGED BY: RKH ENGINEERING DESCRIPTION CHECKED: RAP GEOLOGICAL UNIT, GENERIC NAE, ORIGIN, INERAL COPOSITION. HAND DIG FILL. (Potholed for services check and backfilled.) FLUID LOSS ATER CORE RECOVERY (%) ETHOD CASING TESTS SAPLES 13. R.L. (m) 13.0 DEPTH (m) GRAPHIC LOG CLASSIFICATION SYBOL OISTURE EATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION SHEAR STRENGTH FILL: Borehole drilled through pre-dug and backfilled pothole. 0 (kpa) PRE-DUG 2 0 1 COPRESSIVE STRENGTH (Pa) 2 DEFECT SPACING (mm) 2 0 00 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. 12. 0. 0. 12.0 1.0 1.0 YALDHURST EBER OF THE SPRINGSTON FORATION (ALLUVIAL) 11. 1. L S SILT with some rootlets, grey. Soft, moist, low plasticity. 1. 11.0. 2.0 2. L S Organic SILT with some fibrous organics, dark brown. Soft, moist, non plastic. 2.0 2. - low plasticity 1//13 N=23.0 3.0 D Sandy, fine to coarse GRAVEL with cobbles, grey. edium dense, moist. Gravel is subrounded. Sand is fine to coarse. 3.0 9. 3. 3.m to 4.m no recovery 3. T+T_DATATEPLATE.GDT rth /12/19 N=31 4.0 4. D 4.0 4. - becoming dense BORELOG 6494.000 BOREHOLE LOGS.GPJ 19/12/11
TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: BYR 02 Hole Location: 4 Condell Ave SHEET 2 OF 4 PROJECT: CHRISTCHURCH 11 EARTHQUAKE LOCATION: BRYNDR JOB No: 00.30 CO-ORDINATES R.L. DATU GEOLOGICAL 744822.34 mn 2477924.18 me 13.02 m NZG DRILL TYPE: Direct Push HOLE STARTED: //11 DRILL ETHOD: Sonic Vibration HOLE FINISHED: 6//11 DRILLED BY: DCN DRILL FLUID: N/A LOGGED BY: RKH ENGINEERING DESCRIPTION CHECKED: RAP GEOLOGICAL UNIT, GENERIC NAE, ORIGIN, INERAL COPOSITION. YALDHURST EBER OF THE SPRINGSTON FORATION (ALLUVIAL) FLUID LOSS ATER CORE RECOVERY (%) ETHOD CASING TESTS SAPLES 8. R.L. (m) 8.0 7. DEPTH (m). GRAPHIC LOG CLASSIFICATION SYBOL OISTURE EATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION D SHEAR STRENGTH (kpa) 2 0 1 COPRESSIVE STRENGTH (Pa) 2 DEFECT SPACING (mm) 2 0 00 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. Sandy, fine to coarse GRAVEL with cobbles, grey. Dense, moist. Gravel is subrounded. Sand is fine to coarse.. 7.0 6.0 D - becoming medium dense 6.0 /12/17 N=29 6. 6. S D Fine to coarse SAND, greyish brown. edium dense, moist. 6. 6.0 7.0 VD Grading to fine to coarse GRAVEL with some sand, grey. Very dense, moist. Gravel is subrounded to subangular. Sand is fine to 7.0 coarse, brown.. 7. 7. /17/33 (for 8mm) N>.0 8.0 8.0 4. 8. 8. 9.0 9.0 T+T_DATATEPLATE.GDT rth SONIC VIBR. 23/32/18 (for 80mm) N> 9. 9. - becoming sandy GRAVEL BORELOG 6494.000 BOREHOLE LOGS.GPJ 19/12/11
TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: BYR 02 Hole Location: 4 Condell Ave SHEET 3 OF 4 PROJECT: CHRISTCHURCH 11 EARTHQUAKE LOCATION: BRYNDR JOB No: 00.30 CO-ORDINATES R.L. DATU GEOLOGICAL 744822.34 mn 2477924.18 me 13.02 m NZG DRILL TYPE: Direct Push HOLE STARTED: //11 DRILL ETHOD: Sonic Vibration HOLE FINISHED: 6//11 DRILLED BY: DCN DRILL FLUID: N/A LOGGED BY: RKH ENGINEERING DESCRIPTION CHECKED: RAP GEOLOGICAL UNIT, GENERIC NAE, ORIGIN, INERAL COPOSITION. YALDHURST EBER OF THE SPRINGSTON FORATION (ALLUVIAL) FLUID LOSS ATER CORE RECOVERY (%) ETHOD CASING TESTS PSD S SAPLES 3. R.L. (m) 3.0 DEPTH (m) GRAPHIC LOG CLASSIFICATION SYBOL OISTURE EATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION VD SHEAR STRENGTH (kpa) 2 0 1 COPRESSIVE STRENGTH (Pa) 2 DEFECT SPACING (mm) 2 0 00 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. Sandy, fine to coarse GRAVEL, grey. Very dense, moist. Gravel is subrounded to subangular. Sand is brown, fine to coarse. 2... 12/27/23 (for 1mm) N> 2.0 11.0 11.0 1. 11. 11. CHRISTCHURCH FORATION (ARINE & ESTUARINE) 1.0 12.0 SP L Silty, fine SAND, grey. Loose, moist. 12.0 3/3/ N=8 0. 12. - mm thick silt lamina, grey, soft, moist, low plasticity 12. 0.0 13.0 13.0-0. 13. D - becoming medium sand with trace silt, medium dense 13. 2/17/ N=37 14.0 - becoming medium sand with minor silt 14.0 T+T_DATATEPLATE.GDT rth YALDHURST EBER OF THE SPRINGSTON FORATION (ALLUVIAL) 14. 1 VD 14. Sandy, fine to coarse GRAVEL, grey. Very dense, moist. Gravel is rounded to subrounded. Sand is fine to coarse. ell graded. BORELOG 6494.000 BOREHOLE LOGS.GPJ 19/12/11
TONKIN & TAYLOR LTD BOREHOLE LOG BOREHOLE No: BYR 02 Hole Location: 4 Condell Ave SHEET 4 OF 4 PROJECT: CHRISTCHURCH 11 EARTHQUAKE LOCATION: BRYNDR JOB No: 00.30 CO-ORDINATES R.L. DATU GEOLOGICAL 744822.34 mn 2477924.18 me 13.02 m NZG DRILL TYPE: Direct Push HOLE STARTED: //11 DRILL ETHOD: Sonic Vibration HOLE FINISHED: 6//11 DRILLED BY: DCN DRILL FLUID: N/A LOGGED BY: RKH ENGINEERING DESCRIPTION CHECKED: RAP GEOLOGICAL UNIT, GENERIC NAE, ORIGIN, INERAL COPOSITION. YALDHURST EBER OF THE SPRINGSTON FORATION (ALLUVIAL) FLUID LOSS ATER CORE RECOVERY (%) ETHOD CASING TESTS SAPLES /2/2 ( for 140mm) N> -1. R.L. (m) -2.0 DEPTH (m) GRAPHIC LOG CLASSIFICATION SYBOL SP OISTURE EATHERING CONDITION STRENGTH/DENSITY CLASSIFICATION VD D SHEAR STRENGTH (kpa) 2 0 1 COPRESSIVE STRENGTH (Pa) 2 DEFECT SPACING (mm) 2 0 00 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. edium SAND, grey. Dense, moist. -2. 1. 1. -3.0 16.0 VD 16.0 Sandy, fine to coarse GRAVEL, grey. Very dense, moist. Gravel is subrounded to rounded. Sand is medium. -3. 16. 16. /26/28 N> -4.0 17.0 17.0 L F SILT, grey. Firm, moist, non plastic. PSD HYD -4. 17. 17. -.0 18.0 VSt - becoming bluish grey, very stiff 18.0 6//1 N=2 -. 18. 18. T+T_DATATEPLATE.GDT rth 40/ ( for 12mm) N> 19.0 19. H - fibrous organic fragment present - becoming hard End of borehole at 19.8mbgl. No piezometer installed, backfilled with grout. 19.0 19. BORELOG 6494.000 BOREHOLE LOGS.GPJ 19/12/11
Christchurch Earthquake Recovery Geotechnical Factual Report Bryndwr Appendix C: Borehole Logs T&T Ref. REP-BYR-FAC Earthquake Commission December 11