摘要
隧道断层(F2)为张性正断层,破坏原岩中较为对称的应力平衡,加之带内岩石破碎,节理裂隙发育,使得断层更加容易坍塌和涌水。建议采用稳定掌子面法和专门支护保证硐室稳定。
The fault F2 in the tunnel is a tension fault, which has broken the original symmetrical dynamic equilibrium in the rock. Moreover, the fracture of rock and development of joint fissure cause the fault to collapse and leak more easily. We suggest that the stable work area method and special support must be taken in ortder to guarantee the stability of the cavity.
出处
《云南地质》
2008年第4期509-513,共5页
Yunnan Geology
基金
项目依托:铁道部第四勘察设计院"向莆铁路戴云山隧道工程"(编号:1113025)。
关键词
应力分析
稳定性判断
施工方法设计
隧道断层
福建戴云山
Stress Analysis
Stability Judgement
Design of Construction Method
Tunnel Fault
Daiyunshan, Fujian
