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 |
图6 790 m中段应力显现 |
Fig.6 Stress appearance in the 790 m level |