buried weak surrounding rock 浅埋软弱围岩
Weak Surrounding Rock Tunnels 软岩隧道
Rich water weak surrounding rock 富水软弱围岩
tunnel with weak surrounding rock 软弱围岩隧道
plenty water weak surrounding rock 富水软弱围岩
weak-broken surrounding rock 软弱破碎围岩
As the implementation of infrastructural construction in our country, there will be more tunnel passing through the weak surrounding rock in construction of road.
随着我国大力开发基础建设的实施,我国公路建设中的隧道将穿过更多更长的软弱围岩地段。
参考来源 - 软弱围岩隧道的施工力学研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Due to the weak surrounding rock, high ground stress. easy collapse and big deformation, the construction of tunnels with mudstone were very difficult.
泥岩隧道围岩软弱，地应力强烈，易坍塌大变形，修建困难。
The interaction between soft-weak Surrounding Rock and initial support of deep buried tunnels has become one of the most important subjects in underground engineering research.
深埋隧道软弱围岩与初期支护的相互作用是地下工程研究的重要课题之一。
The time factor problems of tunnel surrounding rock vs. supporting system in weak formation are analysed and the reasonable supporting time is broadly explored with rheological theory.
本文以流变学理论为基础，对软弱地层内隧道围岩—支护系统的时间因素问题进行了分析，对合理的支护时间作了较为全面的探讨。
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