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5 顶板未弱化时不同时刻巷道内不同位置处风速变化规律 |
| Fig.5 Variation of wind velocity at different positions in roadway at different times before roof weakening |
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