摘要
正在施工的金子山隧道是宜万铁路八座Ⅰ级复杂风险隧道之一,同时也是重要控制工程。介绍了掌子面地质素描、掌子面周边探孔、地质雷达及TSP地震反射波法等多种超前地质预报的原理及特点,针对金子山隧道不同里程的地质特征,以现场调查和地质分析为主线,介绍了多种超前地质预报方法在金子山隧道中的应用,同时分析了应用成果。结果表明,围岩实际情况和预报结果基本吻合。为隧道施工防灾重点区段的确定提供了基础,并优化施工方法,为金子山隧道的安全施工提供了有力的信息支持,给施工单位提出了相应的施工建议。
This paper focuses on the application of geology forecast methods in tunnel construction. Generally speaking, geological prediction for tunnel construction is of great importance especially when the tunnels are built in complex geological conditions. This paper uses the Jinzishan tunnel, which is one of the eight most risky tunnels under attentive control along the Yi-Wan railway, as ease. project to clarify the use of geological prediction in this type of construction project. This paper reviews the principles and eharacteristics of several advanced geological forecast methods. Based on field investigation and geological analysis about Jinzishan tunnel, the paper describes the application of applying those generic methods and results, and the results indicate that wall rock practical situation and prediction are in reasouable agreement. It is concluded that geology forecast has provided the basis of hazard prevention at key risky sections, and potent informational support for the safe construction of the tunnel; in additinn, research results have been brought foreward to contractors with relevant construction advices with regard to optimizing construction method and improving their performance at operational level.
出处
《施工技术》
CAS
北大核心
2008年第11期100-102,共3页
Construction Technology
关键词
金子山隧道
施工
超前地质预报
地质分析
优化
预报
Jinzishan tunnel
construction
geology forecast
geological analysis
optimization
prediction
