Research Article
Investigation of Pressure Relief Borehole Effects Using In Situ Testing Based on Distributed Optical Fibre Sensing Technology
Table 1
Numerical model mechanical parameters.
| | Types | Density (kN·m−3) | UCS (MPa) | UTS (MPa) | Young’s modulus (GPa) | Poisson’s ratio | Cohesion (MPa) | Friction angle (°) |
| | Coal | 1293 | 32.27 | 1.34 | 3.66 | 0.20 | 3.67 | 29.89 |
| | Types | Density (kN·m−3) | Young’s modulus (GPa) | Grout cohesion (MPa) | Grout friction angle (°) | Cross-sectional area (mm2) | Tensile yield strength (N) |
| | Cable | 2660 | 3.80 | 3.00 | 25.00 | 19.63 | 2350 |
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