Table 4 Prediction results of crack development locations and depths.
From: A prediction method for mining-induced surface cracks in Yushenfu mining area
Non-rainy season | Rainy season | |||||
|---|---|---|---|---|---|---|
Initial crack | Final depth range | Distribution range | Initial crack | Final depth range | Distribution range | |
Physical simulation | 0.08 m (Advanced to 130 m) | 0.59 ~ 2.46 m | From 7.72 m outside to 47.23 m inside the goaf | 0.03 m (Advanced to 100 m) | 0.41 ~ 1.75 m | From 12.63 m outside to 53.21 m inside the goaf |
Numerical calculation | 0.1 m (Advanced to 130 m) | 0.65 ~ 2.39 m | 0.05 m (Advanced to 100 m) | 0.53 ~ 1.68 m | ||
Theoretical calculation | 0 ~ 0.05 m (Advanced to 140 m) | 0.62 ~ 2.27 m | From 8.05 m outside to 48.73 m inside the roadway | 0 ~ 0.05 m (Advanced to 100 m) | 0.39 ~ 1.68 m | From 14.82 m outside and 50.16 m inside the roadway |
