Download D-MOD2000 - GeoMotions, LLC

Table B-1 (continued)
Material Parameters and Curve Fitting Constants of the
Pore Water Pressure and Degradation Models (Sand and Low-Plasticity Silt)
(1)
k
Degradation
Model
(ft/s)

f
not reported
1.0
1.0
(2)
Material
Reference
Warrenton, Oregon Silt recovered from 130 and 248 ft
b.g.s.; 73% < fines < 99 %; 32.9 % < water content <
37.3 %; 86.3 < dry < 88.9 pcf; 822 < Vs = 1,086 fps;
OCR = 1.0;
Dickenson (2008)
Pore Water
Pressure Model
p
F
1.0
0.493
tv(3)
s
(%)
1.761
0.06
Notes: (1) Plasticity chart for this silt is shown in Figure B-2.
(2) Full citation of this reference is provided in the References section of this manual.
(3) Volumetric threshold shear strain.
Table B-2
Material Parameters and Curve Fitting Constants of the
Pore Water Pressure and Degradation Model (Clay)
Material(1)
Marine Clay (OCR = 1.0)
Marine Clay (OCR = 1.4)
Marine Clay (OCR = 2.0)
Marine Clay (OCR = 4.0)
Reference(2)
tv(3)
(%)
Matasovic and Vucetic (1995)
Matasovic and Vucetic (1995)
Matasovic and Vucetic (1995)
Matasovic and Vucetic (1995)
0.1
0.1
0.1
0.1
Pore Water Pressure and Degradation Model Parameters(4)
st
r
A
B
C
D
0.075
0.064
0.054
0.042
0.495
0.520
0.480
0.423
7.6451
14.6202
12.9495
11.2634
-14.7174
-30.5124
-26.3287
-21.4595
6.3800
18.4265
15.3736
11.2404
0.6922
-2.5343
-1.9944
-1.0443
Notes:
(1)
The PWP generation/cyclic degradation of clay model parameters have been developed based upon strain-controlled testing of five marine clays (VNP, VTCA, VTCB, VTCC
and VTCD clays). These clays are characterized in Figure B-1. Note index properties of these clays (50 ≤ PI ≤ 100; 20 ≤ LL ≤ 60).
(2)
Reference cited in this column contain more detailed material characterization information as well as verification of curve fitting constants and material parameters on case
histories.
(3)
Volumetric threshold shear strain.
(4)
Valid for 0 <  < 0.15% ( = shear strain).
D-MOD2000 - Page No. 156