Advances in Civil Engineering / 2018 / Article / Tab 3

Research Article

Study of Post-Peak Strain Softening Mechanical Behaviour of Rock Material Based on Hoek–Brown Criterion

Table 3

Rock strength parameters of different rock types at the peak position and at the starting point of the residual stage.

Rock typeConfining pressure (MPa) (10−3) (10−3)

Indiana limestone23.47.670.475.51.170.0316.94
44.23.810.716.31.250.0516.60
85.02.860.868.12.150.194.79
125.92.700.988.02.250.402.52
Tennessee marble32.44.10.843.22.540.127.00
72.84.00.853.82.500.155.67
143.23.90.924.92.420.224.18
213.53.21.006.01.800.313.23
Hegang granite24.218.830.375.62.360.0224.18
55.514.440.448.82.450.0219.82
106.713.500.6412.62.530.097.29
157.511.990.9820.02.950.156.63

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