Table 4 Typical rock failure modes under different water pressures and temperatures.
Water stress σw/MPa | Temperature T/℃ | Dynamic strength σc/MPa | Incident energy \(Q_{I}\)/J | Strain rate \(\dot{\varepsilon }\)/s−1 | Failure pattern | Final images of rock specimen |
|---|---|---|---|---|---|---|
2 | 33 | 117.11 | 261.14 | 123.1 | compression-shear crushing failure |
|
5 | 33 | 122.22 | 253.56 | 124.1 | compression-shear crushing failure |
|
8 | 33 | 124.92 | 260.18 | 129.4 | compression-shear crushing failure |
|
11 | 33 | 126.52 | 265.71 | 132.5 | inclined shear boundary failure |
|
14 | 33 | 127.15 | 274.92 | 142.8 | inclined shear boundary failure |
|
8 | 39 | 125.18 | 276.62 | 131.2 | inclined shear boundary failure |
|
8 | 45 | 128.33 | 286.62 | 146.2 | fracture failure |
|
8 | 51 | 139.41 | 265.71 | 158.4 | fracture failure |
|
8 | 57 | 130.68 | 272.89 | 152.9 | fracture failure |
|
