厚硬顶板弱化前后垮落致灾数值模拟研究
吕闹,汪海波

Numerical Simulation of Collapse Disaster Before and After Weakening of Thick and Hard Roof
Nao LV,Haibo WANG
表1 岩石物理力学参数
Table 1 Physical and mechanical parameters of rock
岩石密度/(kg·m-3抗拉强度/MPa抗压强度/MPa弹性模量/GPa泊松比
顶板26952.6492.335.50.24
底板25172.753028.70.226