Research Article
Fracture Development and Multifield Coupling Evolution Law of Soft Overburden Rock in a Medium-Thick Coal Seam Mine
Table 4
Fracture development parameters.
| | Propulsion distance (m) | Fractal dimension | Critical layer stress peak (MPa) | Energy dissipation density (106 J/m2) |
| | 20 | 1.096 | 20.65 | 15.1064 | | 50 | 1.139 | 25.06 | 21.8563 | | 80 | 1.144 | 22.09 | 21.6299 | | 100 | 1.114 | 21.73 | 22.6979 | | 120 | 1.119 | 17.86 | 13.3346 |
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