Earthquake Commission Christchurch Earthquake Recovery ... · 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

Christchurch Earthquake Recovery Geotechnical Factual Report Bryndwr Appendix C: Borehole Logs T&T Ref. REP-BYR-FAC Earthquake Commission December 2011

REPORT

Report prepared for: EARTHQUAKE COMMISSION

Report prepared by: Tonkin & Taylor LTD

Distribution:

EARTHQUAKE COMMISSION 1 copy

Tonkin & Taylor LTD (FILE) 1 copy

December 2011

T&T Ref: REP-BYR-FAC

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


Appendix C: Borehole Logs

Summary Sheet – Bryndwr BYR 50

Borehole ID Depth (m)

Location (mE)

Location (mN)

Ground level R.L

Method Drilling Company

BH-BYR-01 19.48 2478281.1 5743946.61 9.79 Dual tube McMillans BH-BYR-02 19.80 2477924.18 5744822.34 13.02 Sonic DCN

PR

E-D

UG

DU

AL

TU

BE

SP

TD

UA

L T

UB

ES

PT

DU

AL

TU

BE

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

CORE LOSS

YALDHURSTMEMBER OF THESPRINGSTONFORMATION(ALLUVIAL).

3/3/5/4/8/9N=26

PSD-WS

9/9/9/10/11/11N=41

GW

GW

FILL: Borehole drilled through pre-dug andbackfilled pothole.

1.2 to 1.8m no recovery

Sandy, fine to coarse GRAVEL, yellowishbrown. Medium dense, moist. Gravel issubrounded. Sand is fine to medium.1.9 to 3m no recovery

Fine to coarse GRAVEL with some sand,grey. Dense, wet. Gravel is subrounded.Sand is fine to medium.


4.8 to 5.3m no recovery. Becoming verydense

08

8010

0

M

W

MD

D

VD

Hole Location: 37 Strowan Rd

SHEET 1 OF 4

BOREHOLE No: BYR 01

BORELOG 650494.000 BOREHOLE LOGS.GPJ 16/12/11

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

)

9.5

9.0

8.5

8.0

7.5

7.0

6.5

6.0

5.5

5.0

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: BRYNDWR JOB No: 52000.3200

9.79 m

NZMG

DRILL TYPE: Direct Push

DRILL METHOD: Dual Tube

HOLE STARTED: 4/7/11

HOLE FINISHED: 6/7/11

DRILLED BY: McMillan

LOGGED BY: CP/TH CHECKED: RAPDRILL FLUID: N/A


T+

T_D

AT

AT

EM

PLA

TE

.GD

T d

lm

5743946.61 mN2478281.1 mE

TONKIN & TAYLOR LTD

SP

TD

UA

L T

UB

ES

PT

DU

AL

TU

BE

SP

TD

UA

L T

UB

ES

PT

DU

AL

TU

BE

SP

T


10/19/11/14/14for 75mmN>50

PSD-WS

7/7/5/5/4/4N=18

FC

2/1/3/3/4/5N=15

FC

FC

1/0/2/1/2/3N=8

GW

SW

ML

SW


Fine to coarse GRAVEL with some sand,grey. Very dense, wet. Gravel issubrounded. Sand is fine to medium.- 200mm layer of sandy GRAVEL. Gravelis fine to coarse, sub-rounded. Sand is fineto medium

6.0 to 6.5m no recovery. Becoming mediumdense

- contains some buried wood

Fine to medium SAND with minor silt,bluish grey. Medium dense, wet.

- contains some silt

SILT with minor sand, bluish grey. Stiff,moist, low plasticity. Sand is fine.

- 25mm lens of medium sand

- contains trace organics, becomingbrownish grey- becoming firm

- organics absent, becoming bluish grey

Fine to medium SAND with minor silt,grey. Dense, wet.

9193

100

100

W

W

M

W

VD

MD

MD

St

F

D


SHEET 2 OF 4

BOREHOLE No: BYR 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

)

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0

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


9.79 m

NZMG








T+

T_D

AT

AT

EM

PLA

TE

.GD

T d

lm

5743946.61 mN2478281.1 mE

TONKIN & TAYLOR LTD

DU

AL

TU

BE

SP

TD

UA

L T

UB

ES

PT

DU

AL

TU

BE

SP

TD

UA

L T

UB

ES

PT


CHRISTCHURCHFORMATION(MARINE &ESTUARINE)

3/5/7/9/9/10N=35FC

4/4/5/6/4/4N=19

FC

FC

5/4/16/7/6/8N=37FC

8/9/7/8/8/11N=34

FC

FC

3/3/2/1/1/2N=6

SW

ML

SP

SP

SP

ML

Fine to medium SAND with minor silt,grey. Dense, wet.

SILT with minor sand, grey. Stiff, moist,low plasticity. Sand is fine.

- 15mm lens of fine to medium sand

Fine SAND with some silt, bluish grey.Medium dense, wet.

- contains minor silt. Sand becoming fineto medium.

- becoming dense


Medium 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.

100

100

100

47

W

M

W

W

W

W

D

St

MD

D

L

L

F


SHEET 3 OF 4

BOREHOLE No: BYR 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

)

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

-3.5

-4.0

-4.5

-5.0

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


9.79 m

NZMG








T+

T_D

AT

AT

EM

PLA

TE

.GD

T d

lm

5743946.61 mN2478281.1 mE

TONKIN & TAYLOR LTD

DU

AL

TU

BE

SP

TD

UA

L T

UB

ES

PT

DU

AL

TU

BE

SP

TD

UA

L T

UB

ES

PT


RICCARTONGRAVELSEQUIVALENT

FC

13/14/14/16for 75mmN>50

FC

PSD WS

6/8/6/7/9/10N=32

14/13/12/12for 75mmN>50

PSD-WS

12/18/20/30for 55mmN>50

ML

GW

SILT with some sand, bluish grey. Firm,wet, low plasticity.


Fine to coarse GRAVEL with some sandand trace silt, yellowish brown. Very dense,wet. Gravel is subrounded. Sand is fine tomedium.


- becoming dense

18.0 to 18.3m no recovery. Becoming verydense.


End of borehole at 19.48mbgl. Openstandpipe piezometer installed. Please seeattached diagram in Appendix C.

100

7887

89

W

W

F

VD

D

VD


SHEET 4 OF 4

BOREHOLE No: BYR 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

)

-5.5

-6.0

-6.5

-7.0

-7.5

-8.0

-8.5

-9.0

-9.5

-10.0

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


9.79 m

NZMG








T+

T_D

AT

AT

EM

PLA

TE

.GD

T d

lm

5743946.61 mN2478281.1 mE

TONKIN & TAYLOR LTD

PR

E-D

UG

SO

NIC

VIB

RA

TIO

NS

PT

SO

NIC

VIB

RA

TIO

NS

PT

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

YALDHURSTMEMBER OF THESPRINGSTONFORMATION(ALLUVIAL)

FC

15/10/13N=23

5/12/19N=31

ML

ML

GW

FILL: Borehole drilled through pre-dug andbackfilled pothole.

SILT with some rootlets, grey. Soft, moist,low plasticity.

Organic SILT with some fibrous organics,dark brown. Soft, moist, non plastic.

- low plasticity

Sandy, fine to coarse GRAVEL withcobbles, grey. Medium dense, moist.Gravel is subrounded. Sand is fine tocoarse.

3.5m to 4.5m no recovery

- becoming dense

010

05

M

M

M

S

S

MD

D

Hole Location: 4 Condell Ave

SHEET 1 OF 4

BOREHOLE No: BYR 02


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

)

13.5

13.0

12.5

12.0

11.5

11.0

10.5

10.0

9.5

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


13.02 m

NZMG


DRILL METHOD: Sonic Vibration



DRILLED BY: DCN

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


T+

T_D

AT

AT

EM

PL

AT

E.G

DT

rth

5744822.34 mN2477924.18 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.


5/12/17N=29

FC

5/17/33 (for 85mm) N>50

23/32/18 (for 80mm) N>50

GW

SW

GW

Sandy, fine to coarse GRAVEL withcobbles, grey. Dense, moist. Gravel issubrounded. Sand is fine to coarse.

- becoming medium dense

Fine to coarse SAND, greyish brown.Medium dense, moist.

Grading to fine to coarse GRAVEL withsome sand, grey. Very dense, moist. Gravelis subrounded to subangular. Sand is fine tocoarse, brown.

- becoming sandy GRAVEL

100

100

100

100

M

M

M

D

MD

MD

VD


SHEET 2 OF 4

BOREHOLE No: BYR 02


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

)

8.5

8.0

7.5

7.0

6.5

6.0

5.5

5.0

4.5

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


13.02 m

NZMG





DRILLED BY: DCN



T+

T_D

AT

AT

EM

PL

AT

E.G

DT

rth

5744822.34 mN2477924.18 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




PSD WS

12/27/23 (for 120mm)N>50

3/3/5N=8

FC

2/17/20N=37

FC

GW

SP

GW

Sandy, fine to coarse GRAVEL, grey. Verydense, moist. Gravel is subrounded tosubangular. Sand is brown, fine to coarse.

Silty, fine SAND, grey. Loose, moist.

- 50mm thick silt lamina, grey, soft, moist,low plasticity

- becoming medium sand with trace silt,medium dense

- becoming medium sand with minor silt

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

100

100

100

M

M

M

VD

L

MD

VD


SHEET 3 OF 4

BOREHOLE No: BYR 02


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

)

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0

-0.5

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


13.02 m

NZMG





DRILLED BY: DCN



T+

T_D

AT

AT

EM

PL

AT

E.G

DT

rth

5744822.34 mN2477924.18 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

SP

T


10/25/25( for 140mm) N>50

10/26/28N>50

PSD HYD

6/10/15N=25

40/50 ( for 125mm)N>50

GW

SP

GW

ML

Medium SAND, grey. Dense, moist.

Sandy, fine to coarse GRAVEL, grey. Verydense, moist. Gravel is subrounded torounded. Sand is medium.

SILT, grey. Firm, moist, non plastic.

- becoming bluish grey, very stiff

- fibrous organic fragment present

- becoming hard

End of borehole at 19.8mbgl. Nopiezometer installed, backfilled with grout.

100

100

100

M

M

M

M

VD

D

VD

F

VSt

H


SHEET 4 OF 4

BOREHOLE No: BYR 02


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

)

-1.5

-2.0

-2.5

-3.0

-3.5

-4.0

-4.5

-5.0

-5.5

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


13.02 m

NZMG





DRILLED BY: DCN



T+

T_D

AT

AT

EM

PL

AT

E.G

DT

rth

5744822.34 mN2477924.18 mE

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Earthquake Commission Christchurch Earthquake Recovery ... · Earthquake Commission Christchurch Earthquake Recovery Geotechnical Factual Report Bryndwr Appendix C: Borehole Logs