Rocktype
Internal frictional angle (dgree)
Young modulus (MPa)
Poisson ratio
Plastic zone radius (m)




Basalt-Dry
37
63000
0.3
6.5




Basalt-Wet
34
63000
0.3
6.5




Sandstone-Dry
30
35000
0.28
6.8




Sandstone-Wet
29
35000
0.28
7.0




Shale
27
11500
0.225
8.0




Siltstone-Dry
32
20000
0.225
6.50




Siltstone-Wet
31
20000
0.225
6.50




Conglomerate
35
30000
0.30
6.50




Chalk
30
2750
0.25
7.0




Limestone-Dry
34
67000
0.32
6.5




Limestone-Wet
31
67000
0.32
6.5




Fine grained granite-Dry
33
80000
0.275
6.50




Fine grained granite-Wet
30
80000
0.275
6.50




Coarse grained granite-Dry
33
65000
0.275
6.5




Coarse grained granite-Wet
32
65000
0.275
6.50




Pophyry-Dry
31
70000
0.25
6.50




Pophyry-Wet
31
70000
0.25
6.50




Dolerite-Dry
36
95000
0.275
6.50




Dolerite-Wet
32
95000
0.275
6.50




Amphibolite-Dry
32
90000
0.275
6.50




Gneiss-Dry
28
75000
0.275
7.50




Gneiss-Wet
25
75000
0.275
10.00




Slate-Dry
30
23000
0.25
7.0




Slate-Wet
21
23000
0.25
15.5




Marble
30
50000
0.275
7.0




Mudstone
27
9000
0.20
8.00




Quartzite
45
85000
0.225
6.50




Schist
30
35000
0.25
7.0




Tuff
32
15000
0.20
6.50




Dolomite
35
50000
0.275
6.50




Phyllite
25
30000
0.275
10




Gypsum
20
10000
0.25
18.00




Claystone
20
5000
0.20
18.00




Anhydrite
25
35000
0.25
10.00




Granite
37
75000
0.25
6.50




Metabasalt
45
70000
0.25
6.50




Volcanic breccia
39
17000
0.25
6.50




Dacite
47







