Table 2 Physical–mechanical parameters of adjoining rocks
From: A cable supporting test under impact loading based on 5G-IoT
Density (Kg/m3) | Young’s modulus (GPa) | Poisson’s ratio | Tensile strength (MPa) | Cohesion (MPa) | Friction angle (°) | |
|---|---|---|---|---|---|---|
Coal | 1400 | 1.0 | 0.36 | 1.15 | 13.0 | 21.4 |
Mudstone | 2300 | 20 | 0.35 | 2.5 | 21.6 | 36.0 |
Siltstone | 2590 | 40 | 0.23 | 3.0 | 50.0 | 35.0 |
Fine sandstone | 2800 | 35 | 0.22 | 2.98 | 52.0 | 33.0 |
Medium sandstone | 2630 | 40.9 | 0.2 | 3.08 | 45.0 | 38.0 |