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
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
Christchurch Earthquake Recovery Geotechnical Factual Report Bryndwr Appendix C: Borehole Logs T&T Ref. REP-BYR-FAC Earthquake Commission December 2011
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.
3.6 to 3.7m no recovery
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
BORELOG 650494.000 BOREHOLE LOGS.GPJ 16/12/11
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
YALDHURSTMEMBER OF THESPRINGSTONFORMATION(ALLUVIAL).
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
4.8 to 5.3m no recovery
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
Hole Location: 37 Strowan Rd
SHEET 2 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
)
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
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
)
10
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
BORELOG 650494.000 BOREHOLE LOGS.GPJ 16/12/11
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
YALDHURSTMEMBER OF THESPRINGSTONFORMATION(ALLUVIAL).
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
14.0 to 14.4m no recovery
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
Hole Location: 37 Strowan Rd
SHEET 3 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
)
-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
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
)
15
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
BORELOG 650494.000 BOREHOLE LOGS.GPJ 16/12/11
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)
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.
15.6 to 15.85m no recovery
Fine to coarse GRAVEL with some sandand trace silt, yellowish brown. Very dense,wet. Gravel is subrounded. Sand is fine tomedium.
16.6 to 17.35m no recovery
- becoming dense
18.0 to 18.3m no recovery. Becoming verydense.
19.1 to 19.48m no recovery
End of borehole at 19.48mbgl. Openstandpipe piezometer installed. Please seeattached diagram in Appendix C.
100
7887
89
W
W
F
VD
D
VD
Hole Location: 37 Strowan Rd
SHEET 4 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
)
-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
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
)
20
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
BORELOG 650494.000 BOREHOLE LOGS.GPJ 16/12/11
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
BORELOG 650494.000 BOREHOLE LOGS.GPJ 19/12/11
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
)
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
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
13.02 m
NZMG
DRILL TYPE: Direct Push
DRILL METHOD: Sonic Vibration
HOLE STARTED: 5/5/11
HOLE FINISHED: 6/5/11
DRILLED BY: DCN
LOGGED BY: RKH CHECKED: RAPDRILL FLUID: N/A
BORELOG 650494.000 BOREHOLE LOGS.GPJ 19/12/11
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.
YALDHURSTMEMBER OF THESPRINGSTONFORMATION(ALLUVIAL)
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
Hole Location: 4 Condell Ave
SHEET 2 OF 4
BOREHOLE No: BYR 02
BORELOG 650494.000 BOREHOLE LOGS.GPJ 19/12/11
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
)
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
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
)
10
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
13.02 m
NZMG
DRILL TYPE: Direct Push
DRILL METHOD: Sonic Vibration
HOLE STARTED: 5/5/11
HOLE FINISHED: 6/5/11
DRILLED BY: DCN
LOGGED BY: RKH CHECKED: RAPDRILL FLUID: N/A
BORELOG 650494.000 BOREHOLE LOGS.GPJ 19/12/11
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
YALDHURSTMEMBER OF THESPRINGSTONFORMATION(ALLUVIAL)
CHRISTCHURCHFORMATION(MARINE &ESTUARINE)
YALDHURSTMEMBER OF THESPRINGSTONFORMATION(ALLUVIAL)
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
Hole Location: 4 Condell Ave
SHEET 3 OF 4
BOREHOLE No: BYR 02
BORELOG 650494.000 BOREHOLE LOGS.GPJ 19/12/11
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
)
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
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
)
15
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
13.02 m
NZMG
DRILL TYPE: Direct Push
DRILL METHOD: Sonic Vibration
HOLE STARTED: 5/5/11
HOLE FINISHED: 6/5/11
DRILLED BY: DCN
LOGGED BY: RKH CHECKED: RAPDRILL FLUID: N/A
BORELOG 650494.000 BOREHOLE LOGS.GPJ 19/12/11
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
YALDHURSTMEMBER OF THESPRINGSTONFORMATION(ALLUVIAL)
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
Hole Location: 4 Condell Ave
SHEET 4 OF 4
BOREHOLE No: BYR 02
BORELOG 650494.000 BOREHOLE LOGS.GPJ 19/12/11
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
)
-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
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
)
20
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
13.02 m
NZMG
DRILL TYPE: Direct Push
DRILL METHOD: Sonic Vibration
HOLE STARTED: 5/5/11
HOLE FINISHED: 6/5/11
DRILLED BY: DCN
LOGGED BY: RKH CHECKED: RAPDRILL FLUID: N/A
BORELOG 650494.000 BOREHOLE LOGS.GPJ 19/12/11
T+
T_D
AT
AT
EM
PL
AT
E.G
DT
rth
5744822.34 mN2477924.18 mE
TONKIN & TAYLOR LTD
Christchurch Earthquake Recovery Geotechnical Factual Report Bryndwr Appendix C: Borehole Logs T&T Ref. REP-BYR-FAC Earthquake Commission December 2011