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

图4 顶板弱化后不同时刻采空区及巷道内的风速云图

Fig.4 Wind velocity cloud map of goaf and roadway at different times after roof weakening