支护压力控制下隧道周围砂土变形破坏物质点法模拟
张春新,朱鸿鹄,李豪杰,张巍,刘春

Material point method simulations of sand deformation and failure around tunnel controlled by support pressure
Chun-xin ZHANG,Hong-hu ZHU,Hao-jie LI,Wei ZHANG,Chun LIU
表 1 不同埋深条件下的极限支护压力
Tab.1 Ultimate support pressures for different cover depths
C/D σTL/kPa λ
1.5 51 0.73
2.5 63 0.78
3.5 64 0.84