Table 1 The mechanical properties of the rock-like material and sandstone [8]
Materials | Uniaxial compressive strength σc (MPa) | Tensile strength σt (MPa) | Elastic modulus E (GPa) | Poisson’s ratio µ | Density ρ (g/ cm3 ) |
|---|---|---|---|---|---|
Rock-like material | 58.25 | 5.62 | 11.63 | 0.20 | 2.38 |
Sandstone | 20 ~ 170 | 4 ~ 25 | 3 ~ 35 | 0.02 ~ 0.25 | 2.10 ~ 2.40 |