高速铁路隧道特大溶洞防护及处理施工技术研究  

Research on Protection and Treatment Technology of Large-Scale Karst Caves in High Speed Railway Tunnels

作　　者：李丁 LI Ding(Chuan Tie(Luzhou)Railway Co.Ltd.,Luzhou 646100,China)

机构地区：[1]川铁(泸州)铁路有限责任公司,四川泸州646100

出　　处：《工程建设与设计》2020年第11期248-249,共2页Construction & Design for Engineering

摘　　要：隧道穿越特大型溶洞及暗河并不多见,但由于溶洞顶部存在坍塌、落石及稳定性差等风险,往往会给施工带来很大的安全隐患。论文以朱砂堡2#隧道成功穿越暗河溶洞为实例,分析了溶洞处理的措施及溶洞防护的方法,为岩溶隧道溶洞工程施工等提供了一定的参考与借鉴。It is rare for tunnels to pass through large-scale karst caves and underground rivers.However,due to the risk of collapse,falling rocks and poor stability on the top of karst caves,it often brings great safety risks to the construction.Taking Zhushabao No.2 tunnel as an example,the paper analyzes the measures of karst cave treatment and the methods of karst cave protection,which provides some reference for karst tunnel construction.

关 键 词：隧道施工 暗河溶洞 防护方案 

分 类 号：U459.1[建筑科学—桥梁与隧道工程] U455[交通运输工程—道路与铁道工程]