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REPORT Earthquake Commission Christchurch Earthquake Recovery Geotechnical Factual Report Somerfield Appendix C: Borehole Logs

Christchurch Earthquake Recovery Geotechnical Factual Report Somerfield Appendix C: Borehole Logs T&T Ref. REP-SMF-FAC Earthquake Commission September 2011

REPORT

Report prepared for: EARTHQUAKE COMMISSION

Report prepared by: Tonkin & Taylor LTD

Distribution:

EARTHQUAKE COMMISSION 1 copy

Tonkin & Taylor LTD (FILE) 1 copy

September 2011

T&T Ref: REP-SMF-FAC

Earthquake Commission Christchurch Earthquake Recovery Geotechnical Factual Report Somerfield Appendix C: Borehole Logs


Appendix C: Borehole Logs

Summary Sheet – Somerfield SMF 51

Borehole ID Depth (m) Location (mE)

Location (mN)

Ground level R.L

Method Drilling Company

BH-SMF-01 15.60 2480173.84 5738486.07 8.19 Dual tube McMillan

BH-SMF-03 15.10 2480398.21 5738288.18 8.09 Triple tube Prodrill

BH-SMF-04 15.60 2480325.29 5738079.50 8.21 Dual tube McMillan

BH-SMF-05 15.00 2480136.04 5737783.08 7.03 Sonic DCN

PR

E-D

UG

DT

SP

TD

TS

PT

DT

HAND DIG FILL.(Potholed for servicescheck and backfilled.)

CHRISTCHURCHFORMATION(MARINE &ESTUARINE)

0/0/0/0/0/0N=0

0/0/0/0/0/0N=0

ML

SP

ML

SP

FILL: Borehole drilled through pre-dug andbackfilled pothole.

SILT with some sand, brown. Stiff, dry,non-plastic. Sand is fine.

Silty, fine SAND, brown. Very loose,moist.

2.4m to 3.6m no recovery

SILT, grey. Soft, moist, low plasticity.Fibrous organics present.

Fine SAND, grey. Loose, wet.

010

00

100

D

M

M

W

St

VL

S

L

Hole Location: Cnr Somerfield &Woodard

SHEET 1 OF 4

BOREHOLE No: SMF 01

BORELOG 650494.000 BOREHOLE LOGS.GPJ 9/9/11

CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

8.0

7.5

7.0

6.5

6.0

5.5

5.0

4.5

4.0

3.5

DE

PT

H (

m)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION

Substance: Rock type, particle size, colour,minor components.

Defects: Type, inclination, thickness,

BOREHOLE LOG

WA

TE

R

20 50 100 roughness, filling.

50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

5

SOIL DESCRIPTION

Soil type, minor components, plasticity orparticle size, colour.ORIGIN,

MINERAL COMPOSITION.

ENGINEERING DESCRIPTION

FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM

PROJECT: CHRISTCHURCH 2011 EARTHQUAKE LOCATION: SOMERFIELD JOB No: 52000.3200

8.19 m

NZGM

DRILL TYPE: Direct Push

DRILL METHOD: Dual Tube

HOLE STARTED: 5/5/11

HOLE FINISHED: 6/5/11

DRILLED BY: McMillans

LOGGED BY: RKH CHECKED: BMcDDRILL FLUID: N/A


T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5738486.07 mN2480173.84 mE

TONKIN & TAYLOR LTD

SP

TD

TS

PT

DT

SP

TD

TS

PT

DT

SP

T


2/2/2/2/3N=9

2/2/2/1/2/2N=7

1/1/1/1/1/1N=4

1/1/1/1/1/1N=4

1/1/2/1/0/0N=3

SP

SP

ML

SP

Fine SAND, grey. Loose, wet.

Silty, fine SAND, grey. Loose, wet.

SILT, brownish grey. Soft, moist, lowplasticity. Contains wood fragments.

- becoming bluish grey

Silty, fine SAND, grey. Very loose, moist.

710

010

010

0

W

W

M

M

L

L

S

VL


SHEET 2 OF 4

BOREHOLE No: SMF 01


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

3.0

2.5

2.0

1.5

1.0

0.5

0.0

-0.5

-1.0

-1.5

DE

PT

H (

m)

5.5

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

5.5

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

10

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


8.19 m

NZGM








T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5738486.07 mN2480173.84 mE

TONKIN & TAYLOR LTD

DT

SP

TD

TS

PT

DT

SP

TD

TS

PT


RICCARTONGRAVELS

1/1/2/2/3/4N=11

1/1/1/2/3/4N=10

3/6/6/10/11/11N=38

4/8/11/11/13/15N=50

ML

SP

GW

SILT with some sand and rootlets, grey.Firm, moist, low plasticity. Sand is fine.

Silty, fine SAND, grey. Medium dense,moist, poorly graded. Moderately widelyspaced thin beds of silt.


Sandy, fine to medium GRAVEL, darkyellowish brown. Very dense, moist.Gravel is subrounded to subangular. Sandis fine to coarse.

100

100

8310

0

M

M

M

F

MD

VD


SHEET 3 OF 4

BOREHOLE No: SMF 01


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

-2.0

-2.5

-3.0

-3.5

-4.0

-4.5

-5.0

-5.5

-6.0

-6.5

DE

PT

H (

m)

10.5

11.0

11.5

12.0

12.5

13.0

13.5

14.0

14.5

10.5

11.0

11.5

12.0

12.5

13.0

13.5

14.0

14.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

15

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


8.19 m

NZGM








T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5738486.07 mN2480173.84 mE

TONKIN & TAYLOR LTD

DT

RICCARTONGRAVELS

GW Sandy, fine to medium GRAVEL, darkyellowish brown. Very dense, moist.Gravel is subrounded to subangular. Sandis fine to coarse.

End of borehole at 15.6mbgl.

100

M VD


SHEET 4 OF 4

BOREHOLE No: SMF 01


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

-7.0

-7.5

-8.0

-8.5

-9.0

-9.5

-10.0

-10.5

-11.0

-11.5

DE

PT

H (

m)

15.5

16.0

16.5

17.0

17.5

18.0

18.5

19.0

19.5

15.5

16.0

16.5

17.0

17.5

18.0

18.5

19.0

19.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

20

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


8.19 m

NZGM








T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5738486.07 mN2480173.84 mE

TONKIN & TAYLOR LTD

PR

E-D

UG

HQ

TT

SP

TH

QT

TS

PT

HQ

TT

SP

T


YALDHURSTMEMBER OF THESPRINGSTONFORMATION(ALLUVIAL)

1/1/2/1/1/1N=6

FC

FC

1/0/1/1/1/1N=4

1/2/2/3/3/3N=11

SP

SP


Silty, fine SAND, grey mottled brown.Loose, moist.

- becoming grey



Fine SAND, grey. Medium dense, moist.

- sand becoming medium

060

5262

M

M

L

MD

Hole Location: 7a Young Rd

SHEET 1 OF 4

BOREHOLE No: SMF 03

BORELOG 650494.000.BOREHOLE LOGS A.GPJ 15/9/11

CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

8.0

7.5

7.0

6.5

6.0

5.5

5.0

4.5

4.0

3.5

DE

PT

H (

m)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

5

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM

PROJECT: CHRISTCHURCH 2011 REMEDIATION LOCATION: SHIRLEY JOB No: 52000.3200

8.09 m

NZMG

DRILL TYPE: Rotary

DRILL METHOD: Triple Tube



DRILLED BY: Pro-Drill

LOGGED BY: CP CHECKED: BMcDDRILL FLUID: Mud


T+

T_D

AT

AT

EM

PLA

TE

.GD

T R

TH

5738288.18 mN2480398.21 mE

TONKIN & TAYLOR LTD

HQ

TT

SP

TH

QT

TH

QT

TS

PT

HQ

TT

SP

T



1/2/2/3/3/2N=10

1/0/1/1/2/2N=6

FC

1/2/1/1/2N=5

ML

SP



7.5m to 8m one piece of wood recovered~60mmø


SILT with some rootlets and minor clay,grey. Soft, moist, low plasticity.Silty, fine SAND, grey. Medium dense,moist.


- becoming loose

- sand becoming medium

50

2043

M

M

S

MD

L


SHEET 2 OF 4

BOREHOLE No: SMF 03


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

3.0

2.5

2.0

1.5

1.0

0.5

0.0

-0.5

-1.0

-1.5

DE

PT

H (

m)

5.5

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

5.5

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

10

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


8.09 m

NZMG

DRILL TYPE: Rotary







T+

T_D

AT

AT

EM

PLA

TE

.GD

T R

TH

5738288.18 mN2480398.21 mE

TONKIN & TAYLOR LTD

HQ

TT

SP

TH

QT

TS

PT

HQ

TT

SP

TH

QT

T


RICCARTONGRAVELS

1/3/6/6/5/6N=29

1/2/4/4/3/5N=16

12/19/30/20N>50

SP

SP

ML

GW

- sand becoming fine

10.1m to 11m no recovery

Silty, medium SAND, grey. Medium dense,moist.


SILT with some sand and trace shells, grey.Very stiff, moist, low plasticity. Sand isfine.


Medium to coarse GRAVEL, grey. Verydense, moist.14.15m to 15.0m no recovery

1414

190

M

M

M

M

MD

MD

VSt

VD


SHEET 3 OF 4

BOREHOLE No: SMF 03


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

-2.0

-2.5

-3.0

-3.5

-4.0

-4.5

-5.0

-5.5

-6.0

-6.5

DE

PT

H (

m)

10.5

11.0

11.5

12.0

12.5

13.0

13.5

14.0

14.5

10.5

11.0

11.5

12.0

12.5

13.0

13.5

14.0

14.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

15

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


8.09 m

NZMG

DRILL TYPE: Rotary







T+

T_D

AT

AT

EM

PLA

TE

.GD

T R

TH

5738288.18 mN2480398.21 mE

TONKIN & TAYLOR LTD

SP

T 33/17for 20mmN>50




SHEET 4 OF 4

BOREHOLE No: SMF 03


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

-7.0

-7.5

-8.0

-8.5

-9.0

-9.5

-10.0

-10.5

-11.0

-11.5

DE

PT

H (

m)

15.5

16.0

16.5

17.0

17.5

18.0

18.5

19.0

19.5

15.5

16.0

16.5

17.0

17.5

18.0

18.5

19.0

19.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

20

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


8.09 m

NZMG

DRILL TYPE: Rotary







T+

T_D

AT

AT

EM

PLA

TE

.GD

T R

TH

5738288.18 mN2480398.21 mE

TONKIN & TAYLOR LTD

PR

E-D

UG

DT

SP

TD

TS

PT

DT



3/4/2/3/3/3N=11

6/6/6/6/6/7N=25

SP

GW

GW


Fine SAND with some silt, brown. Mediumdense, moist.


Fine to medium GRAVEL with some sandand minor silt, brownish grey. Mediumdense, moist. Gravel is subrounded tosubangular. Sand is fine to coarse.


Sandy, fine to medium GRAVEL, brownishgrey. Medium dense, moist. Gravel issubrounded to subangular. Sand ismedium.


058

3320

M

M

M

MD

MD

MD

Hole Location: 277 Ashgrove Tce

SHEET 1 OF 4

BOREHOLE No: SMF 04


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

8.0

7.5

7.0

6.5

6.0

5.5

5.0

4.5

4.0

3.5

DE

PT

H (

m)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

5

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM

PROJECT: CHRISTCHURCH 2011 REMEDIATION LOCATION: SOMERFIELD JOB No: 52000.3200

8.21 m

NZMG








T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5738079.5 mN2480325.29 mE

TONKIN & TAYLOR LTD

SP

TD

TS

PT

DT

SP

TD

TS

PT

DT

SP

T


3/4/4/4/5/5N=18

4/5/5/4/4/5N=18

3/4/6/5/4/6N=21

2/5/3/6/4/4N=17

2/2/4/5/6/8N=23

GW

GW

GW

Sandy, fine to medium GRAVEL, brownishgrey. Medium dense, moist. Gravel issubrounded to subangular. Sand ismedium.5.3m to 6m no recovery

Fine to medium GRAVEL with minor sand,greyish brown. Medium dense, moist.Gravel is subrounded to subangular. Sandis fine to coarse.


7.9m to 8.4m no recdovery

Sandy, fine to medium GRAVEL, brownishgrey. Medium dense, moist. Gravel issubrounded to subangular. Sand ismedium.

9m to 9.6m no recovery

720

3333

M

M

M

MD

MD

MD


SHEET 2 OF 4

BOREHOLE No: SMF 04


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

3.0

2.5

2.0

1.5

1.0

0.5

0.0

-0.5

-1.0

-1.5

DE

PT

H (

m)

5.5

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

5.5

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

10

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


8.21 m

NZMG








T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5738079.5 mN2480325.29 mE

TONKIN & TAYLOR LTD

DT

SP

TD

TS

PT

DT

SP

TD

TS

PT


3/5/3/5/5/6N=19

2/6/6/1112/13N=43

9/13/1413/13N>50

4/11/1415/16N>50

GW

GW

Sandy, fine to medium GRAVEL, brownishgrey. Medium dense, moist. Gravel issubrounded to subangular. Sand ismedium.10.3m to 10.8m no recovery


Sandy, fine to medium GRAVEL with somesilt, brownish grey. Dense, moist. Gravel issubrounded to subangular. Sand is fine tocoarse.


- becoming very dense

14m to 14.4m no recovery

3333

4747

M

M

MD

D

VD


SHEET 3 OF 4

BOREHOLE No: SMF 04


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

-2.0

-2.5

-3.0

-3.5

-4.0

-4.5

-5.0

-5.5

-6.0

-6.5

DE

PT

H (

m)

10.5

11.0

11.5

12.0

12.5

13.0

13.5

14.0

14.5

10.5

11.0

11.5

12.0

12.5

13.0

13.5

14.0

14.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

15

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


8.21 m

NZMG








T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5738079.5 mN2480325.29 mE

TONKIN & TAYLOR LTD

DT


GW Sandy, fine to medium GRAVEL with somesilt, brownish grey. Very dense, moist.Gravel is subrounded to subangular. Sandis fine to coarse.15.2m to 15.6m no recovery


47

M VD


SHEET 4 OF 4

BOREHOLE No: SMF 04


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)

-7.0

-7.5

-8.0

-8.5

-9.0

-9.5

-10.0

-10.5

-11.0

-11.5

DE

PT

H (

m)

15.5

16.0

16.5

17.0

17.5

18.0

18.5

19.0

19.5

15.5

16.0

16.5

17.0

17.5

18.0

18.5

19.0

19.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

20

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


8.21 m

NZMG








T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5738079.5 mN2480325.29 mE

TONKIN & TAYLOR LTD

PR

E-D

UG

SO

NIC

VIB

RA

TIO

NS

PT

SO

NIC

VIB

RA

TIO

NS

PT




PSD WS

16/20/22N=42

2/2/4N=6

ML

GW

ML


SILT with some sand, light brown. Firm,dry, non plastic. Sand is fine.

- becoming moist

Fine to coarse GRAVEL with some sand,grey. Dense, moist. Gravel is rounded tosubrounded. Sand is fine to coarse.

SILT with rootlets, grey mottled brown.Soft, moist, low plasticity.

010

010

0

D

M

M

M

F

D

S

Hole Location: Opposite 193Ashgrove Terrace, on riverbank

SHEET 1 OF 4

BOREHOLE No: SMF 05


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)7.0

6.5

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

DE

PT

H (

m)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

5

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


7.03 m

NZGM


DRILL METHOD: Sonic



DRILLED BY: DCN



T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5737783.08 mN2480136.04 mE

TONKIN & TAYLOR LTD

SO

NIC

VIB

RA

TIO

NS

PT

SO

NIC

VIB

RA

TIO

NS

PT

SO

NIC

VIB

RA

TIO

NS

PT

SO

NIC

VIB

R.


2/3/4N=7

FC

2/6/8N=14

FC

4/8/12N=20

GW

SP

GW

SP

SILT with rootlets, grey mottled brown.Soft, moist, low plasticity.

Silty, fine to medium SAND, grey.Medium dense, moist.


Sandy, fine to coarse GRAVEL, grey.Loose, moist. Gravel is rounded tosubrounded. Sand is fine to coarse.

- thin (50mm thick) bed of silt, brown, soft,moistSilty, fine SAND, grey. Medium dense,moist.

100

8110

062

M

M

M

M

S

MD

L

MD


SHEET 2 OF 4

BOREHOLE No: SMF 05


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)2.0

1.5

1.0

0.5

0.0

-0.5

-1.0

-1.5

-2.0

-2.5

DE

PT

H (

m)

5.5

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

5.5

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

10

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


7.03 m

NZGM


DRILL METHOD: Sonic



DRILLED BY: DCN



T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5737783.08 mN2480136.04 mE

TONKIN & TAYLOR LTD

SP

TS

ON

IC V

IBR

AT

ION

SP

TS

ON

IC V

IBR

AT

ION

SP

TS

ON

IC V

IBR

AT

ION


4/8/12N=20

0/2/3N=5

3/3/3N=6

SP

ML

SP

ML

SP

Silty, fine SAND, grey. Medium dense,moist.10.1m to 10.5m no recovery

SILT, grey. Very soft, moist, low plasticity.


- becoming firm

Silty, fine SAND, grey. Loose, moist.

SILT, grey. Soft, moist, low plasticity.

Silty, fine SAND, grey. Loose, moist.

7110

010

0

M

M

M

M

M

MD

VS

F

L

S

L


SHEET 3 OF 4

BOREHOLE No: SMF 05


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)-3.0

-3.5

-4.0

-4.5

-5.0

-5.5

-6.0

-6.5

-7.0

-7.5

DE

PT

H (

m)

10.5

11.0

11.5

12.0

12.5

13.0

13.5

14.0

14.5

10.5

11.0

11.5

12.0

12.5

13.0

13.5

14.0

14.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

15

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


7.03 m

NZGM


DRILL METHOD: Sonic



DRILLED BY: DCN



T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5737783.08 mN2480136.04 mE

TONKIN & TAYLOR LTD


2/3/4N=7

SP Silty, fine SAND, grey. Loose, moist.


M L


SHEET 4 OF 4

BOREHOLE No: SMF 05


CA

SIN

G

TESTS

SA

MP

LES

WE

AT

HE

RIN

G

ST

RE

NG

TH

/DE

NS

ITY

CLA

SS

IFIC

AT

ION

SH

EA

R S

TR

EN

GT

H

(kP

a)

10 25 50 100

200

CO

MP

RE

SS

IVE

ST

RE

NG

TH

(MP

a)

1 5GR

AP

HIC

LO

G

CLA

SS

IFIC

AT

ION

SY

MB

OL

R.L

. (m

)-8.0

-8.5

-9.0

-9.5

-10.0

-10.5

-11.0

-11.5

-12.0

-12.5

DE

PT

H (

m)

15.5

16.0

16.5

17.0

17.5

18.0

18.5

19.0

19.5

15.5

16.0

16.5

17.0

17.5

18.0

18.5

19.0

19.5

MO

IST

UR

E

CO

ND

ITIO

N

ROCK DESCRIPTION



BOREHOLE LOG

WA

TE

R


50 250

1000

2000

250

DE

FE

CT

SP

AC

ING

(mm

)

20

SOIL DESCRIPTION




FLU

ID L

OS

S

ME

TH

OD

GENERIC NAME,

GEOLOGICAL

GEOLOGICAL UNIT,

CO

RE

RE

CO

VE

RY

(%

)

CO-ORDINATES

R.L.

DATUM


7.03 m

NZGM


DRILL METHOD: Sonic



DRILLED BY: DCN



T+

T_D

AT

AT

EM

PLA

TE

.GD

T e

ek

5737783.08 mN2480136.04 mE

TONKIN & TAYLOR LTD

REPORT - EQC Earthquake Commission · Christchurch Earthquake Recovery Geotechnical Factual Report...

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Transcript of REPORT - EQC Earthquake Commission · Christchurch Earthquake Recovery Geotechnical Factual Report...