Upload
lexuyen
View
220
Download
1
Embed Size (px)
Citation preview
Project:
LMMG
Geotechnical Engineers
www.LMMG.CLTotal depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
Location:
Cone resistance
Tip resistance (MPa)
5040302010
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Cone resistance Pore pressure
Pressure (kPa)
4,0003,0002,0001,0000
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Pore pressureSleeve friction
Friction (kPa)
1,000500
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Sleeve friction
Cross correlation between qc & fs
20181614121086420-2-4-6-8-10-12-14-16-18-20
1.2
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
-2
Cross correlation between qc & fs
The plot below presents the cross correlation coeficient between the raw qc and fs values (as measured on the field). X axes presents the lagdistance (one lag is the distance between two sucessive CPT measurements).
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:30 1
Project file:
Project:
LMMG
Geotechnical Engineers
www.LMMG.CLTotal depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
Location:
SBT plot
Friction Ratio, Rf (%)
0.1 1 10
Cone r
esis
tance,
qc/p
a
1
10
100
1,000
SBT plot Bq plot
Pore pressure ratio, Bq
1.401.201.000.800.600.400.200.00-0.20
Corr
ecte
d c
one r
esis
tance,
qt
0.1
1
10
100
Bq plot
SBT - Bq plots
SBT legend
1. Sensitive fine grained
2. Organic material
3. Clay to silty clay
4. Clayey silt to silty clay
5. Silty sand to sandy silt
6. Clean sand to silty sand
7. Gravely sand to sand
8. Very stiff sand to clayey sand
9. Very stiff fine grained
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31 2
Project file:
Project:
LMMG
Geotechnical Engineers
www.LMMG.CL
Location:
Total depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
SBTn plot
Normalized Friction Ratio, Fr (%)
0.1 1 10
Norm
alized C
one R
esis
tance,
Qtn
1
10
100
1,000
SBTn plot Normalized Bq plot
Pore pressure ratio, Bq
1.401.201.000.800.600.400.200.00-0.20-0 .40
Norm
alized c
one r
esis
tance,
Qtn
1
10
100
1,000
Normalized Bq plot
SBTn legend
1. Sensitive fine grained
2. Organic material
3. Clay to silty clay
4. Clayey silt to silty clay
5. Silty sand to sandy silt
6. Clean sand to silty sand
7. Gravely sand to sand
8. Very stiff sand to clayey sand
9. Very stiff fine grained
SBT - Bq plots (normalized)
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31 3
Project file:
Project:
LMMG
Geotechnical Engineers
www.LMMG.CLTotal depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
Location:
Schneider et al (2008) Soil Class.
Du2/sig'v
109876543210-1-2
Q =
qcnet/
sig
'v
1
10
100
1,000
Schneider et al (2008) Soil Class.
2
3
1a
1b1c
Transition
al Soils
Silts an
d "Low Ir" Cla
ys
Clays
Sensitiv
e Clays
Essentialy
Drained
Sands
Schneider et al (2008) Soil Class.
Du2/sig'v
0.1 1 10 100
Q =
qcnet/
sig
'v
1
10
100
1,000
Schneider et al (2008) Soil Class.
2
3
1a
1b
1c
Transitional Soils
Silts and "Low Ir" Clays
Clays
Sensitive Clays
Essentialy
Drained
Sands
Bq plots (Schneider)
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31 4
Project file:
Project:
LMMG
Geotechnical Engineers
www.LMMG.CLTotal depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
Location:
Norm. Soil Behaviour Type
SBTn (Robertson 1990)
181614121086420
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Norm. Soil Behaviour Type
SandSand & silty sandSilty sand & sandy siltSilty sand & sandy silt
Sand & silty sandSand & silty sandClay & silty clayClay
Clay
Clay
Silty sand & sandy siltClaySilty sand & sandy siltClay & silty claySilty sand & sandy siltClay & silty clayClayClay & silty clayClay & silty clayClayClayClay & silty claySand & silty sandClay
Clay
Clay & silty clay
Sand & silty sandSand & silty sandClay & silty clay
Clay & silty clay
Silty sand & sandy siltClay & silty claySand & silty sandClayVery dense/stiff soil
Clay & silty clay
ClayClay & silty claySilty sand & sandy siltClay & silty claySilty sand & sandy siltSand & silty sandSilty sand & sandy siltSilty sand & sandy silt
Clay & silty clayClay & silty clay
Clay & silty claySilty sand & sandy siltSilty sand & sandy siltClaySand & silty sand
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31
Project file:
5
Project:
LMMG
Geotechnical Engineers
www.LMMG.CLTotal depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
Location:
Cone resistance qt
Tip resistance (MPa)
5040302010
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Cone resistance qt Pore pressure u
Pressure (kPa)
2,0001,0000
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Pore pressure uFriction ratio
Rf (%)
1086420
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Friction ratio SBT Index
I(SBT)
4321D
epth
(m
)36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SBT Index Soil Behaviour Type
SBT (Robertson, 2010)
181614121086420
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Soil Behaviour Type
Sand & silty sandSilty sand & sandy siltClay & silty clay
Sand & silty sandClay & silty clayClay & silty clay
Clay
Clay & silty claySilty sand & sandy siltClayClay & silty claySand & silty sand
Clay & silty clayClay & silty claySilty sand & sandy silt
ClayVery dense/stif f soilClay & silty claySilty sand & sandy silt
Clay & silty clay
Silty sand & sandy silt
Sand & silty sandSand & silty sandSilty sand & sandy siltVery dense/stif f soil
Very dense/stif f soil
Clay & silty clayVery dense/stif f soilVery dense/stif f soilClay & silty claySilty sand & sandy siltVery dense/stif f soilVery dense/stif f soil
Silty sand & sandy siltVery dense/stif f soilVery dense/stif f soil
Sand & silty sand
Silty sand & sandy silt
Very dense/stif f soilVery dense/stif f soilVery dense/stif f soilSilty sand & sandy silt
Silty sand & sandy silt
SBT legend
1. Sensitive fine grained
2. Organic material
3. Clay to silty clay
4. Clayey silt to silty clay
5. Silty sand to sandy silt
6. Clean sand to silty sand
7. Gravely sand to sand
8. Very stiff sand to clayey sand
9. Very stiff fine grained
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31 6
Project file:
Project:
LMMG
Geotechnical Engineers
www.LMMG.CLTotal depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
Location:
Norm. cone resistance
Qtn
200150100500
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Norm. cone resistance Norm. pore pressure ratio
Bq
10.80.60 .40.20-0.2
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Norm. pore pressure ratioNorm. friction ratio
Fr (%)
1086420
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Norm. friction ratio SBTn Index
Ic
4321D
epth
(m
)36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SBTn Index Norm. Soil Behaviour Type
SBTn (Robertson 1990)
181614121086420
Depth
(m
)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Norm. Soil Behaviour Type
SandSand & silty sandClay & silty claySilty sand & sandy silt
Sand & silty sandClay & silty clayClay
Clay
ClaySilty sand & sandy silt
Clay & silty claySilty sand & sandy siltClay & silty clayClayClay
Clay & silty clay
Clay & silty clayClaySand & silty sandClay
Clay
Clay & silty clay
Sand & silty sandSand & silty sand
ClaySand & silty sandClaySilty sand & sandy siltClay
ClaySand & silty sandClay
Silty sand & sandy siltSilty sand & sandy siltClay & silty clayClay & silty clayClay & silty claySilty sand & sandy silt
Clay & silty clay
ClaySilty sand & sandy siltClayClay & silty clay
Clay & silty clay
SBTn legend
1. Sensitive fine grained
2. Organic material
3. Clay to silty clay
4. Clayey silt to silty clay
5. Silty sand to sandy silt
6. Clean sand to silty sand
7. Gravely sand to sand
8. Very stiff sand to clayey sand
9. Very stiff fine grained
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31 7
Project file:
Project:
LMMG
Geotechnical Engineers
www.LMMG.CLTotal depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
Location:
Permeability
Ksbt (m/s)
-91x10 -61x10 -31x10
Depth
(m
)
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Permeability Young's modulus
Es (MPa)
4002000
Depth
(m
)
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Young's modulusSPT N60
N60 (blows/30cm)
50403020100
Depth
(m
)
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
SPT N60 Relative density
Dr (%)
100806040200
Depth
(m
)
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Relative density
Calculation parameters
Relative desnisty constant, CDr: 350.0Permeability: Based on SBTn
SPT N60: Based on Ic and qt
Young’s modulus: Based on variable alpha using Ic (Robertson, 2009)
Phi: Based on Kulhawy & Mayne (1990)
User defined estimation data
Friction angle
φ (degrees)
60555045403530
Depth
(m
)
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Friction angle
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31 8
Project file:
Project:
LMMG
Geotechnical Engineers
www.LMMG.CLTotal depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
Location:
Constrained Modulus
M(CPT) (MPa)
400200
Depth
(m
)
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Constrained Modulus Shear strength
Su (kPa)
2,0001,0000
Depth
(m
)
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2Su peak
Su remolded
Shear strengthShear modulus
Go (MPa)
400200
Depth
(m
)
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Shear modulus Undrained strength ratio
Su/σ',v
21.510.50
Depth
(m
)
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
Undrained strength ratio OCR
OCR
1086420
Depth
(m
)
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
OCR
Calculation parameters
Undrained shear strength cone factor for clays, Nkt: 14
OCR factor for clays, Nkt: 0.33
Go: Based on variable alpha using Ic (Robertson, 2009)
Constrained modulus: Based on variable alpha using Ic and Qtn (Robertson, 2009)
User defined estimation data
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31 9
Project file:
Project:
LMMG
Geotechnical Engineers
www.LMMG.CLTotal depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
Location:
Shear Wave velocity
Vs (m/s)
500400300200100
Depth
(m
)
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Shear Wave velocity In-situ stress ratio
Ko
210
Depth
(m
)
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
In-situ stress ratioState parameter
ψ
0-0.1-0 .2
Depth
(m
)
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
State parameter Soil sensitivity
S
86420
Depth
(m
)
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
Soil sensitivity Effective friction angle
Peak φ (degrees)
4035302520
Depth
(m
)
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Effective friction angle
Calculation parameters
Soil Sensitivity factor, NS: 7.00
User defined estimation data
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31 10
Project file:
Project:
LMMG
Geotechnical Engineers
www.LMMG.CLTotal depth: 36.00 m, Date: 14-04-2014
Surface Elevation: 0.00 m
Coords: X:0.00, Y:0.00
Cone Type: Uknown
Cone Operator: Uknown
CPT: CPT-01
Location:
Bearing Capacity Plot
Footing Width (m)
4321
Ultim
ate
Beari
ng C
apacity (
kPa)
1,580
1,560
1,540
1,520
1,500
1,480
1,460
1,440
1,420
1,400
1,380
1,360
1,340
1,320
1,300
1,280
1,260
1,240
1,220
1,200
1,180
1,160
Bearing Capacity Plot
Bearing Capacity calculation isperfromed based on the formula:
soiltkult qqRQ +×=
where:Rk: Bearing capacity factorqt: Average corrected coneresistance over calculation depthqsoil: Pressure applied by soilabove footing
No B(m)
StartDepth
(m)
End Depth(m)
Ave. qt
(MPa)Soil Press.
(kPa)Ult. bearing cap. (kPa)
Rk
:: Tabular results ::
1 1.00 0.50 2.00 7.25 9.50 1458.680.20
2 1.20 0.50 2.30 7.07 9.50 1423.030.20
3 1.40 0.50 2.60 6.51 9.50 1311.150.20
4 1.60 0.50 2.90 5.98 9.50 1205.930.20
5 1.80 0.50 3.20 6.65 9.50 1338.640.20
6 2.00 0.50 3.50 7.36 9.50 1481.050.20
7 2.20 0.50 3.80 7.75 9.50 1559.520.20
8 2.40 0.50 4.10 7.87 9.50 1583.660.20
9 2.60 0.50 4.40 7.53 9.50 1515.940.20
10 2.80 0.50 4.70 7.24 9.50 1458.150.20
11 3.00 0.50 5.00 6.97 9.50 1402.690.20
12 3.20 0.50 5.30 6.62 9.50 1332.690.20
13 3.40 0.50 5.60 6.34 9.50 1278.180.20
14 3.60 0.50 5.90 6.13 9.50 1236.000.20
15 3.80 0.50 6.20 5.87 9.50 1183.370.20
16 4.00 0.50 6.50 5.68 9.50 1145.090.20
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31 11
Project file:
This software is licensed to: Gregg Drilling & Testing, Inc.
:: Permeability, k (m/s) ::
cI3.04-0.952cc 10k then 1.00I and 3.27I ⋅=><
cI1.37--4.52cc 10k then 3.27I and 4.00I ⋅=>≤
:: NSPT (blows per 30 cm) ::
cI0.28171.1268a
c60
10
1
P
qN
⋅−⋅
=
( )cI0.28171.1268tn601
10
1QN
⋅−⋅=
:: Young's Modulus, Es (MPa) ::
1.68I0.55
vtc100.015)σ(q +⋅⋅⋅−
(applicable only to SBTn: 5, 6, 7 and 8or Ic < Ic_cutoff)
:: Relative Density, Dr (%) ::
DR
tn
k
Q100 ⋅
(applicable only to Ic < Ic_cutoff)
:: State Parameter, ψ ::
)log(Q0.330.56ψ cstn,⋅−=
:: Peak drained friction angle, φ (°) ::
)log(Q1117.60φ tn⋅+=
(applicable only to SBTn: 5, 6, 7 and 8)
:: 1-D constrained modulus, M (MPa) ::
1.68I0.55vtCPT
c
vtCPT
tntn
tn
c
c100.0188)σ(qM
2.20I If
)σ(qαM
14Qfor Qα
14Qfor 14α
2.20I If
+⋅⋅⋅−=
≤
−⋅=
≤=
>=
>
:: Small strain shear Modulus, Go (MPa) ::
1.68I0.55vt0
c100.0188)σ(qG +⋅⋅⋅−=
:: Shear Wave Velocity, Vs (m/s) ::
0.50
0s
ρ
GV
=
:: Undrained peak shear strength, Su (kPa) ::
( )kt
vtu
rkt
N
σqS
defineduser or )log(F710.50N
−=
⋅+=
:: Overconsolidation Ratio, OCR ::
tnOCR
1.25
r
0.20tn
OCR
Qk OCR
defineduser or ))log(F7(10.500.25
Qk
⋅=
⋅+⋅⋅=
:: Remolded undrained shear strength, Su(rem) (kPa) ::
( ) sremu fS =
:: Unit Weight, g (kN/m³) ::
weightunit water g where
1.236)p
qlog(0.36)log(R0.27gg
w
a
tfw
=
+⋅+⋅⋅=
(applicable only to SBTn: 1, 2, 3, 4 and 9 or Ic > Ic_cutoff)
(applicable only to SBTn: 1, 2, 3, 4 and 9 or Ic > Ic_cutoff)
(applicable only to SBTn: 1, 2, 3, 4 and 9or Ic > Ic_cutoff)
References
• Robertson, P.K., Cabal K.L., Guide to Cone Penetration Testing for Geotechnical Engineering, Gregg Drilling & Testing, Inc., 5th Edition, November
2012
Presented below is a list of formulas used for the estimation of various soil properties. The formulas are presented in SI unit system and assumethat all components are expressed in the same units.
• Robertson, P.K., Interpretation of Cone Penetration Tests - a unified approach., Can. Geotech. J. 46(11): 1337–1355 (2009)
:: In situ Stress Ratio, Ko ::
'sinO OCR)'sin(1K ϕϕ ⋅−=
:: Soil Sensitivity, St ::
r
St
F
NS =
(applicable only to SBTn: 1, 2, 3, 4 and 9 or Ic > Ic_cutoff)
(applicable only to SBTn: 1, 2, 3, 4 and 9 or Ic > Ic_cutoff)
:: Effective Stress Friction Angle, φ' (°) ::
( )tq0.121q
' logQB0.3360.256B29.5φ +⋅+⋅⋅°=
(applicable for 0.10<Bq<1.00)
CPeT-IT v.1.7.6.42 - CPTU data presentation & interpretation software - Report created on: 14-04-2014, 18:16:31Project file:
12