隧道下穿大型滑坡体处理技术研究

Treatment Technology Research on Tunnel Under-passing Large-scale Landslide Mass

依托宝兰客专峡口隧道施工下穿大型滑坡体的工程实践,介绍了隧址地层岩性、地质构造的复杂条件,据所处地形、地质、水文情况,分析了隧道施工与所遇大型滑坡体相互影响的工程特征,结合理论分析对洞内、洞外施工方案进行了甄选,并详细介绍了下穿滑坡体施工中所采取的方法、工艺,对类似工程具有一定的借鉴意义。

Based on the application of Xiakou Tunnel in Baoji-Lanzhou High-speed Railway under-passing large-scale landslide mass, this paper introduced the complex conditions of strata lithology and geologic structure at the tunnel site. According to the topographical, geological and hydrological conditions, the engineering features of the interaction between tunnel construction and large landslide mass were analyzed, the construction schemes for outside and inside of the tunnel were selected combined with theory analysis, and the method and technology adopted in the construction of tunnel under- passing the landslide mass were introduced in detail, which was supposed as a reference to similar engineering.