隧道支护结构体系及其协同作用 1)
张顶立,孙振宇,侯艳娟

TUNNEL SUPPORT STRUCTURE SYSTEM AND ITS SYNERGISTIC EFFECT 1)
Dingli Zhang,Zhenyu Sun,Yanjuan Hou
表7 隧道表面初支参数最优解集
Table 7 Optimal solution set of parameters of primary support on tunnel surface
Support time Stiffness of shotcrete Stiffness of grid steel frame
xi/m Ec/(MPa.m-1) Es/(MPa.m-1)
7 200 100