The following values are suggested for the model parameters in PDMYM.
Dr=30%
Dr=40%
Dr=50%
Dr=60%
Dr=75%
rho (ton/m3)
1.7
1.8
1.9
2.0
2.1
refShearModul (kPa, at p'r=80 kPa)
6x104
9x104
10x104
11x104
13x104
refBulkModu (kPa, at p'r=80 kPa)
16x104
(K0=0.5)
22x104
(K0=0.47)
23.3x104
(K0=0.45)
24x104
(K0=0.43)
26x104
(K0=0.4)
frictionAng
31
32
33.5
35
36.5
PTAng
31
26
25.5
26
26
peakShearStra (at p'r=101 kPa)
0.1
refPress (p'r, kPa)
101
pressDependCoe
0.5
Contrac1
0.087
0.067
0.045
0.028
0.013
Contrac3
0.18
0.23
0.15
0.05
0.0
dilat1
0.
0.06
0.06
0.1
0.3
dilat3
0.0
0.27
0.15
0.05
0.0
e
0.85
0.77
0.7
0.65
0.55
My question is here Gref at 80kPa is given, rho is known. Then can I simply use G = rho Vs2 to calculate Vs? But the Vs values that I calculated for 40% and 75% Dr are coming very low. I think the problem is here G is referenced at 80 kPa. How to get the actual Vs for say 40% and 75% Dr?
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