成贵铁路铁盔山隧道主要工程地质问题分析

Analysis of Major Engineering Geological Problems in Tiekuishan Tunnel of Chengdu-Guiyang Railway

成贵铁路铁盔山隧道,全长5227 m,是该铁路控制性工程之一。根据成贵铁路铁盔山隧道工程地质勘察工作,介绍了隧址地形地貌、地层岩性、地质构造及水文地质条件。着重分析了几个主要工程地质问题,并提出相应的处理措施,为隧道设计施工提供参考。

Tiekuishan tunnel of Chengdu-Guiyang Railway is 5 227 m,being one of the railway control projects. According to the geological engineering investigation in Tiekuishan tunnel of Chengdu-Guiyang Railway,this paper introduces the topography and landform,formation lithology,geological structure and hydrogeology conditions of the tunnel. This paper has mainly discussed several major engineering geological problems and put forward the corresponding treatment measures,which provides reference for tunnel＇s design and construction.