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3. 隧道超前支护/加固的典型形式

Fig.3. Typical forms of tunnel advanced support/reinforcement