复杂采空区群稳定性数值分析及安全分级评价
周科平,曹立雄,李杰林,张玮,杨承业,张孝平,高乐

Stability Numerical Analysis and Safety Classification Evaluation of Complex Goaf Group
Keping ZHOU,Lixiong CAO,Jielin LI,Wei ZHANG,Chengye YANG,Xiaoping ZHANG,Le GAO
表1 岩体物理力学参数
Table 1 Physical and mechanical parameters of rock mass
岩石类别物理力学指标
弹性模量/GPa泊松比内聚力/MPa内摩擦角/(°)单轴抗拉强度/MPa密度/(kg·m-3
围岩11.2210.212.67950.290.352.93
矿体14.9640.233.54547.150.413.05