Research Article
Effect of Underground Coal Mining on Slope Morphology and Soil Erosion
Table 11
Erosion modulus (Ms) and runoff modulus (Mw) before and after mining at different angles between the slope and working face.
| | Included angle | Before mining | After mining | Variation | | Ms (t·km−2) | Mw (t·km−2) | Ms (t·km−2) | Mw (t·km−2) | Ms (t·km−2) | Mw (t·km−2) |
| | 0° | 13.620 | 1803.354 | 14.295 | 1889.732 | 0.674 | 86.378 | | 30° | 15.745 | 2048.719 | 2.124 | 245.364 | | 45° | 19.929 | 2510.867 | 6.308 | 707.512 | | 60° | 29.147 | 3484.454 | 15.526 | 1681.010 | | 90° | 13.568 | 1796.627 | –0.052 | –6.727 |
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