隧道支护结构体系及其协同作用
张顶立,孙振宇,侯艳娟
TUNNEL SUPPORT STRUCTURE SYSTEM AND ITS SYNERGISTIC EFFECT
Dingli Zhang,Zhenyu Sun,Yanjuan Hou
图2.
支护体系阶段性发展历程
Fig.2.
Phased development course of support system