2 4 6 8 10 12 14 16 18 DYNAMIC PROBE SUPER HEAVY (DPSH) LOG Scale (m) Scale (m) Blow Count per 100 mm 4 6 6 6 7 7 8 8 10 10 11 11 11 11 12 11 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 Ground Investigation Ltd. Contractor: Project: Te Whau Shared Walkway 11.00 New Lynn to Te Atatu, Auckland Location: East (m): 1750816.81 Elevation (m): Location Method: - Handheld GPS DP1.TW.17 DPSH Number: North (m): 5914120.22 Client: MWH New Zealand Ltd www.g-i.co.nz Logged By: Hole Depth (m): Engineer: Gary Lee Client Ref: Tony Whitelaw Termination: Remarks: Unscheduled DPSH through CPT4.TW.17 hole, started at 8.55 m. 13/03/2017 Date: Page 1 of 2 17-097 G.I. Ref: Consistant high blow count
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Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
4
66
67
78
8
1010
11
1111
11
12
11
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
11.00
New Lynn to Te Atatu, AucklandLocation: East (m): 1750816.81
Elevation (m):
Location Method:
-
Handheld GPS
DP1.TW.17DPSH
Number:
North (m): 5914120.22
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks: Unscheduled DPSH through CPT4.TW.17 hole, started at 8.55 m.
13/03/2017Date: Page 1 of 2
17-097G.I. Ref:
Consistant high blow count
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
11
10
1114
18
1918
2021 >>23 >>
11 11
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
11.00
New Lynn to Te Atatu, AucklandLocation: East (m): 1750816.81
Elevation (m):
Location Method:
-
Handheld GPS
DP1.TW.17DPSH
Number:
North (m): 5914120.22
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks: Unscheduled DPSH through CPT4.TW.17 hole, started at 8.55 m.
13/03/2017Date: Page 2 of 2
17-097G.I. Ref:
Consistant high blow count
DP1.TW.17
0
2
4
6
8
10
12
0 5 10 15 20 25 30
Dept
h (m
)
qd (MPa)
Dynamic Point Resistance
0
0
2
4
6
8
10
12
0 10 20 30
Torque (N.m)
Dept
h (m
)
Blow Count
Torque, N10 & N10 Corrected
N10 N10 Corrected Torque (Nm)
0
2
4
6
8
10
12
0 20 40 60
Dep
th (m
)
Blow Count
SPT N60 Equivalent
N10 Corrected = N10 - 0.05 Torque
qd =
. rd SPT N60 Equivalent = 3 * N10 Corrected
rd =
Where e = average penetration per blow
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
1
11
1
1
22
3
21
1
2
2
2
22
2
1
11
2
2
22
33
33
22
23
3
33
5
4
55
7
7
6
6
7
88
89
6
14
1111
11
11
12
11
14
15
1414
1215
1414
1514
1714
17
17
1619
16
2022 >>23 >>
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
8.60
New Lynn to Te Atatu, AucklandLocation: East (m): 1750806.46
Elevation (m):
Location Method:
-
Handheld GPS
DP2.TW.17DPSH
Number:
North (m): 5914423.97
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks: Water level 2.4 m at start.
14/03/2017Date: Page 1 of 1
17-097G.I. Ref:
Consistant high blow count
DP2.TW.17
0
1
2
3
4
5
6
7
8
9
0 5 10 15 20 25 30
Dept
h (m
)
qd (MPa)
Dynamic Point Resistance
0 100 200 300
0
1
2
3
4
5
6
7
8
9
0 10 20 30
Torque (N.m)
Dept
h (m
)
Blow Count
Torque, N10 & N10 Corrected
N10 N10 Corrected Torque (Nm)
0
1
2
3
4
5
6
7
8
9
0 20 40 60
Dept
h (m
)
Blow Count
SPT N60 Equivalent
N10 Corrected = N10 - 0.05 Torque
qd =
. rd SPT N60 Equivalent = 3 * N10 Corrected
rd =
Where e = average penetration per blow
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
3
44
5
44
4
5
54
5
55
6
5
4
5
33
3
3
35
4
4
43
35
44
34
43
3
33
2
3
33
4
3
3
3
4
43
44
4
4
55
5
5
5
6
6
6
75
76
76
77
87
7
6
68
7
888
88
88
88
8
98
9
88
9
8
10
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
13.00
New Lynn to Te Atatu, AucklandLocation: East (m): 1750613.88
Elevation (m):
Location Method:
-
Handheld GPS
DP3.TW.17DPSH
Number:
North (m): 5914459.13
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks: Platform 2m above water when test started. 3 m of 10 blows +, danger of not being able to remove rods if we went further.
15/03/2017Date: Page 1 of 2
17-097G.I. Ref:
Consistant high blow count
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
9
9
109
10
910
99
10
910
11
10
1110
11
10
912
10
11
12
1111
1112
1111
12
11
12
13
11
12
13
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
13.00
New Lynn to Te Atatu, AucklandLocation: East (m): 1750613.88
Elevation (m):
Location Method:
-
Handheld GPS
DP3.TW.17DPSH
Number:
North (m): 5914459.13
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks: Platform 2m above water when test started. 3 m of 10 blows +, danger of not being able to remove rods if we went further.
15/03/2017Date: Page 2 of 2
17-097G.I. Ref:
Consistant high blow count
DP3.TW.17
0
2
4
6
8
10
12
14
0 5 10 15 20 25 30
Dept
h (m
)
qd (MPa)
Dynamic Point Resistance
0 100 200 300
0
2
4
6
8
10
12
14
0 10 20 30
Torque (N.m)
Dept
h (m
)
Blow Count
Torque, N10 & N10 Corrected
N10 N10 Corrected Torque (Nm)
0
2
4
6
8
10
12
14
0 20 40 60
Dep
th (m
)
Blow Count
SPT N60 Equivalent
N10 Corrected = N10 - 0.05 Torque
qd =
. rd SPT N60 Equivalent = 3 * N10 Corrected
rd =
Where e = average penetration per blow
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
0.5
0.5
11
1
1
11
2
12
2
2
2
3
33
2
3
33
3
3
33
23
23
33
33
3
33
3
3
43
3
3
4
3
4
44
54
5
5
66
6
6
7
5
6
7
66
77
77
77
76
7
6
87
6
777
77
77
79
10
810
8
99
9
9
11
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
12.90
New Lynn to Te Atatu, AucklandLocation: East (m): 1750431.08
Elevation (m):
Location Method:
-
Handheld GPS
DP4.TW.17DPSH
Number:
North (m): 5914697.05
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks: Test started through 2.9 m of water.
15/03/2017Date: Page 1 of 2
17-097G.I. Ref:
Consistant high blow count
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
11
9
1099
1110
99
10
1010
10
10
1010
10
11
1113
13
12
12
1213
1314
1414
11
12
11
12
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
12.90
New Lynn to Te Atatu, AucklandLocation: East (m): 1750431.08
Elevation (m):
Location Method:
-
Handheld GPS
DP4.TW.17DPSH
Number:
North (m): 5914697.05
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks: Test started through 2.9 m of water.
15/03/2017Date: Page 2 of 2
17-097G.I. Ref:
Consistant high blow count
DP4.TW.17
0
2
4
6
8
10
12
14
0 5 10 15 20 25 30
Dept
h (m
)
qd (MPa)
Dynamic Point Resistance
0 100 200 300
0
2
4
6
8
10
12
14
0 10 20 30
Torque (N.m)
Dept
h (m
)
Blow Count
Torque, N10 & N10 Corrected
N10 N10 Corrected Torque (Nm)
0
2
4
6
8
10
12
14
0 20 40 60
Dep
th (m
)
Blow Count
SPT N60 Equivalent
N10 Corrected = N10 - 0.05 Torque
qd =
. rd SPT N60 Equivalent = 3 * N10 Corrected
rd =
Where e = average penetration per blow
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
11
1
21
1
2
12
1
12
3
3
2
2
12
1
1
21
1
1
11
1
22
2
3
23
2
3
3
3
3
33
44
3
4
43
4
4
4
4
5
4
66
66
78
67
88
8
8
99
9
811
10
910
1010
1119
12
1012
11
1011
11
11
11
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
11.50
New Lynn to Te Atatu, AucklandLocation: East (m): 1749282.46
Elevation (m):
Location Method:
-
Handheld GPS
DP5.TW.17DPSH
Number:
North (m): 5915033.10
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks:
21/03/2017Date: Page 1 of 2
17-097G.I. Ref:
Consistant high blow count
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
11
13
1215
11
1012
2016
17
1814
12
1817
11 11
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
11.50
New Lynn to Te Atatu, AucklandLocation: East (m): 1749282.46
Elevation (m):
Location Method:
-
Handheld GPS
DP5.TW.17DPSH
Number:
North (m): 5915033.10
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks:
21/03/2017Date: Page 2 of 2
17-097G.I. Ref:
Consistant high blow count
DP5.TW.17
0
2
4
6
8
10
12
14
0 5 10 15 20 25 30
Dept
h (m
)
qd (MPa)
Dynamic Point Resistance
0 100 200 300
0
2
4
6
8
10
12
14
0 5 10 15 20 25
Torque (N.m)
Dept
h (m
)
Blow Count
Torque, N10 & N10 Corrected
N10 N10 Corrected Torque (Nm)
0
2
4
6
8
10
12
14
0 20 40 60
Dept
h (m
)
Blow Count
SPT N60 Equivalent
N10 Corrected = N10 - 0.05 Torque
qd =
. rd SPT N60 Equivalent = 3 * N10 Corrected
rd =
Where e = average penetration per blow
Comparison of CPT7.TW.17 DP5.TW.17
0
2
4
6
8
10
12
0 5 10 15 20 25
Dept
h (m
)
Point Resistance (MPa)
Point Resistance with Depth
CPT7.TW.17 qt (MPa) DP5.TW.17 qd (MPa)
0
2
4
6
8
10
12
0 10 20 30 40 50 60
Dept
h (m
)
Blow count
SPT N60 with Depth
CPT7.TW.17 Estimated SPT N60 DP5.TW.17 Corrected N10 * 3
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
22
3
3
2
3
22
3
3
44
4
4
44
44
45
56
56
5
66
6
6
76
6
7
7
7
8
99
66
7
11
1010
10
11
10
10
10
11
1212
1317
1918
1617
171919
1
2
3
4
5
6
7
1
2
3
4
5
6
7
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
7.80
New Lynn to Te Atatu, AucklandLocation: East (m): 1747787.26
Elevation (m):
Location Method:
-
Handheld GPS
DP6.TW.17DPSH
Number:
North (m): 5917442.14
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks: Starting water level - 0.95m
16/03/2017Date: Page 1 of 1
17-097G.I. Ref:
Consistant high blow count
DP6.TW.17
0
1
2
3
4
5
6
7
8
9
0 5 10 15 20 25 30
Dept
h (m
)
qd (MPa)
Dynamic Point Resistance
0 100 200 300
0
1
2
3
4
5
6
7
8
9
0 10 20 30
Torque (N.m)
Dept
h (m
)
Blow Count
Torque, N10 & N10 Corrected
N10 N10 Corrected Torque (Nm)
0
1
2
3
4
5
6
7
8
9
0 20 40 60
Dept
h (m
)
Blow Count
SPT N60 Equivalent
N10 Corrected = N10 - 0.05 Torque
qd =
. rd SPT N60 Equivalent = 3 * N10 Corrected
rd =
Where e = average penetration per blow
Comparison of CPT21.TW.17 DP6.TW.17
0
1
2
3
4
5
6
7
8
0 5 10 15 20 25
Dept
h (m
)
Point Resistance (MPa)
Point Resistance with Depth
CPT21.TW.17 qt (MPa) DP6.TW.17 qd (MPa)
0
1
2
3
4
5
6
7
8
0 10 20 30 40 50 60
Dept
h (m
)
Blow count
SPT N60 with Depth
CPT21.TW.17 Estimated SPT N60 DP6.TW.17 Corrected N10 * 3
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
22
2
34
4
4
8
8
79
15
12
1313
17
21 >>27 >>
1
2
3
1
2
3
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
3.20
New Lynn to Te Atatu, AucklandLocation: East (m): 1747604.80
Elevation (m):
Location Method:
-
Handheld GPS
DP7.TW.17DPSH
Number:
North (m): 5918143.24
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks: Starting water depth - 0.73 m
17/03/2017Date: Page 1 of 1
17-097G.I. Ref:
Very high blow count
DP7.TW.17
0
0.5
1
1.5
2
2.5
3
3.5
0 5 10 15 20 25 30
Dept
h (m
)
qd (MPa)
Dynamic Point Resistance
0 100 200 300
0
0.5
1
1.5
2
2.5
3
3.5
0 10 20 30
Torque (N.m)
Dept
h (m
)
Blow Count
Torque, N10 & N10 Corrected
N10 N10 Corrected Torque (Nm)
0
0.5
1
1.5
2
2.5
3
3.5
0 20 40 60
Dep
th (m
)
Blow Count
SPT N60 Equivalent
N10 Corrected = N10 - 0.05 Torque
qd =
. rd SPT N60 Equivalent = 3 * N10 Corrected
rd =
Where e = average penetration per blow
Basi
c D
PS
H R
eport
2 4 6 8 10
12
14
16
18
DYNAMIC PROBE SUPER HEAVY (DPSH) LOG
Scale
(m
)
Scale
(m
)
Blow Count per 100 mm
3
46
54
44
3
44
8
7
1010
9
1012
10
14
12
13
1210
10
10
1011
12
10
1011
1214
1112
1412
1213
15
1413
17
18
181616
1
2
3
4
1
2
3
4
Ground Investigation Ltd.Contractor:
Project: Te Whau Shared Walkway
4.90
New Lynn to Te Atatu, AucklandLocation: East (m): 1747716.70
Elevation (m):
Location Method:
-
Handheld GPS
DP8.TW.17DPSH
Number:
North (m): 5919279.57
Client: MWH New Zealand Ltd
www.g-i.co.nz
Logged By: Hole Depth (m):
Engineer: Gary Lee
Client Ref:
Tony Whitelaw
Termination:
Remarks:
21/03/2017Date: Page 1 of 1
17-097G.I. Ref:
Very high blow count
DP8.TW.17
0
1
2
3
4
5
6
0 5 10 15 20 25 30
Dept
h (m
)
qd (MPa)
Dynamic Point Resistance
0 100 200 300
0
1
2
3
4
5
6
0 10 20 30
Torque (N.m)
Dept
h (m
)
Blow Count
Torque, N10 & N10 Corrected
N10 N10 Corrected Torque (Nm)
0
1
2
3
4
5
6
0 20 40 60
Dep
th (m
)
Blow Count
SPT N60 Equivalent
N10 Corrected = N10 - 0.05 Torque
qd =
. rd SPT N60 Equivalent = 3 * N10 Corrected
rd =
Where e = average penetration per blow
Appendix E SPT Calibration Certificates
May 26, 2017
5
Appendix E SPT Calibration Certificates
Pro-Drill SPT Calibration
Certification
RIG: SLG.1
Calibrated on: 9th
February 2017
Pile Dynamics, Inc. Page 1Case Method & iCAP® Results PDIPLOT2 2016.1.56.3 - Printed 10-February-2017
SLG 1 - 18.5m BH3-17OP: Scott Date: 09-February-2017
AR: 11.68 cm² SP: 7.88 t/m³LE: 12.0 m EM: 2,109 t/cm²WS: 5,123.0 m/s JC: 0.00 []
CSX: Max Measured Compr. Stress RAT: SPT Length RatioDMX: Maximum Displacement VMX: Maximum VelocityEFV: Energy of FV FMX: Maximum ForceETR: Energy Transfer Ratio - Rated DFN: Final DisplacementBPM: Blows per Minute
BL# Depth BLC TYPE CSX DMX EFV ETR BPM RAT VMX FMX DFNm bl/m Mpa mm J (%) bpm [] m/s tn mm
2 0.0 0 AV1 132.5 37 402.93 84.9 8.6 1.0 3.62 16 37
4 0.0 0 AV2 148.6 29 404.87 85.3 31.8 0.7 3.91 18 29
6 0.0 0 AV2 153.6 25 419.60 88.4 32.0 1.0 3.84 18 25
8 0.0 0 AV2 154.1 23 420.05 88.5 32.3 0.7 3.92 18 23
10 0.0 0 AV2 153.8 26 433.64 91.4 32.4 0.7 4.15 18 26
12 0.0 0 AV2 155.5 26 432.70 91.2 32.5 0.7 4.14 19 26
14 0.0 0 AV2 156.1 29 435.55 91.8 32.6 0.9 4.24 19 29
16 0.0 0 AV2 154.9 26 429.17 90.4 32.8 0.7 4.06 18 26
18 0.0 0 AV2 155.1 22 438.31 92.4 32.8 1.0 4.11 18 22
20 0.0 0 AV2 155.1 21 431.98 91.0 32.9 0.9 4.16 18 21
22 0.0 0 AV2 157.3 20 429.36 90.5 33.0 1.0 4.10 19 20
24 0.0 0 AV2 155.7 19 432.21 91.1 33.0 0.7 4.20 19 19
26 0.0 0 AV2 157.0 20 433.48 91.3 33.0 0.7 4.29 19 20
28 0.0 0 AV2 156.9 22 435.81 91.8 33.1 1.0 4.25 19 22
30 0.0 0 AV2 156.6 19 428.25 90.2 33.2 1.0 4.21 19 19
32 0.0 0 AV2 156.0 22 431.79 91.0 33.3 1.0 4.28 19 22
34 0.0 0 AV2 156.8 21 431.21 90.9 33.4 1.0 4.27 19 21
36 0.0 0 AV2 154.7 17 427.46 90.1 33.4 1.1 4.27 18 17
Average 154.5 23 428.40 90.3 32.1 0.9 4.13 18 23Total number of blows analyzed: 35
BL# Sensors
2-36 F3: [468BW2] 211.4 (1.00); F4: [468BW1] 211.7 (1.00); A1: [K5608] 300.0 (1.00);A2: [K5724] 322.0 (1.00)
Time Summary
Drive 1 minute 9 seconds 4:36 p.m. - 4:37 p.m. BN 1 - 36
Pile Dynamics, Inc. - PDIPLOT2 Ver 2016.1.56.3 - Case Method & iCAP® Results
Printed: 10-February-2017 Test started: 09-February-2017
SLG 1 - 18.5m
CSX (Mpa)
Max Measured Compr. Stress
DMX (mm)
Maximum Displacement
0
7
14
22
29
36
0.0 40.0 80.0 120.0 160.0
0 10 20 30 40
EFV (J)
Energy of FV
ETR ((%))
Energy Transfer Ratio - Rated
0.00 120.00 240.00 360.00 480.00
0.0 30.0 60.0 90.0 120.0
BPM (bpm)
Blows per Minute
RAT ([])
SPT Length Ratio
0.0 10.0 20.0 30.0 40.0
0.0 1.0 2.0 3.0 4.0
SLG-1
4
Table 1 Summary of SPT Hammer Energy Transfer Measurements
SPT Number Average Average Range in Range in Average Blow Hammer of Valid Transferred Energy Transferred Energy Rate
Test Energy Transfer Ratio Energy Transfer Ratio (blows per Samples
min)
SPT 0.437kNm to 92.0% to Auto 3 0.440kNm 92.7%
0.442kNm 93.0% 38
hammer
Trip 0.316kNm to 66.6% to
hammer 3 0.320kNm 67.5% 0.325kNm 68.4%
14 #2
Trip 0.327kNm to 68.8% to hammer 3 0.329kNm 69.1%
0.330kNm 69.4% 14
#3
The maximum, minimum, and standard deviation in energy transfer for each SPT sample over the
SPT N value increment are included in Appendix B.
4 Summary table of results
A summary of results for the each hammer with three valid test samples of the energy
measurements with reported SPT N values and the SPT N value corrected for 60% transferred energy
(NGO) are presented in Table 2, Appendix E. The N50 value was calculated using the Schmertman
correction as follows:
N50
Where: em
= (em/ 60) Nm
= the measured transferred energy ratio
(based upon measured energy/ theoretical energy of 0.475kNm)
= the measured SPT N value.
In accordance with Idriss and Boulanger5, the correction factors presented in Appendix E may also be
applied to calculate N50.
5 Idriss and Boulanger (2008). Soil Liquefaction During Earthquakes. Earthquake Engineering Research Institute MN0-12
Tonkin & Taylor Ltd
SPT Energy Measurements on 3No. SPT Hammers
Geotech Drilling Ltd
5 November 2015
Job No: 31219
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Appendix F Laboratory Test Results
May 26, 2017
6
Appendix F Laboratory Test Results
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