富水软岩隧道仰拱病害的综合处治与设计反思  

Comprehensive Treatment Scheme and Design Suggestions on Inverted Arch Defects in Water-rich Soft Rock Tunnels

作　　者：吴铭芳[1] 春军伟[1] WU Mingfang;CHUN Junwei(Guizhou Transportation Planning Survey&Design Academe Co.,Ltd.,Guiyang 550081)

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司,贵阳550081

出　　处：《现代隧道技术》2021年第6期233-243,共11页Modern Tunnelling Technology

摘　　要：高速公路隧道病害问题严重影响行车安全。文章以某高速公路富水软岩隧道为研究对象,结合隧道水文地质条件及病害情况,分析了隧道仰拱病害产生的原因,并采用数值计算软件进行模拟分析,提出了较为完备的处治措施。经实际效果验证,处治措施合理有效。在此基础上,根据该隧道的病害及处治情况,总结出一套针对地下水丰富的软弱围岩隧道仰拱病害处治方案,可为类似条件下的隧道仰拱病害处治提供借鉴和参考,并对类似条件下的隧道设计提出了一些建议。The problem of highway tunnel defects has become an unavoidable factor that affects traffic safety.Taking a water-rich soft rock expressway tunnel as the research object,and in combination with the tunnel hydrogeological conditions and the tunnel defect conditions,the causes of inverted arch defects are analyzed,the simulation analysis is carried out by a numerical calculation software,and then the complete treatment measures are proposed accordingly.Actual results show that the treatment measures are reasonable and effective.On this basis,a set of treatment schemes is summarized for defects in the tunnel inverted arch in weak surrounding rock with rich groundwater,so as to provide references for treating the defects of the inverted arch under similar conditions and to put forward some suggestions for tunnel design under similar conditions.

关 键 词：公路隧道 富水软岩 仰拱病害 处治措施 

分 类 号：U457.2[建筑科学—桥梁与隧道工程]