上覆公路浅埋采空区群稳定性数值模拟
杨仕教,王志会

Numerical Simulation on Stability of Shallow-buried Goaf Group with Overlying Highway
Shijiao YANG,Zhihui WANG
图7 矿柱中等高度最大主应力云图
Fig.7 Contour of maximum principal stress in medium height of pillar