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4
超前小导管参数最优解集
Table 4
Optimal solution set of advanced small pipe parameters
d/mm
Sc/m
Si/cm
l/m
Q/(。）
40
3.5
35
4.5
15