厚硬顶板弱化前后垮落致灾数值模拟研究
Numerical Simulation of Collapse Disaster Before and After Weakening of Thick and Hard Roof
厚硬顶板弱化前后垮落致灾数值模拟研究 |
| 吕闹,汪海波 |
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Numerical Simulation of Collapse Disaster Before and After Weakening of Thick and Hard Roof |
| Nao LV,Haibo WANG |
| 图8 顶板弱化前后煤层底部的Von Mises应力云图 |
| Fig.8 Von mises stress cloud map of coal seam bottom before and after roof weakening |
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