二郎山隧道衬砌严重开裂段的结构加固措施及其安全性分析  

Structure Reinforcement Measures and Its Safety Analysis for Severe Cracking Section of Erlangshan Tunnel Lining

作　　者：王维嘉 田志宇 李蔚蹊 徐升 WANG Wei-jia;TIAN Zhi-yu;LI Wei-xi;XU Sheng(Sichuan Provincial Transport Department Highway Planning,Survey,Design and Research Institute,Chengdu,Sichuan,610041)

机构地区：[1]四川省交通运输厅公路规划勘察设计研究院

出　　处：《西部交通科技》2019年第2期132-137,共6页Western China Communications Science & Technology

摘　　要：文章介绍了G318二郎山隧道衬砌严重开裂段的病害情况,结合隧道地质与施工情况分析了病害成因,确定了以套拱加固为主的加固措施,并使用有限元软件对加固措施的安全性进行了计算分析。This article introduces the disease situation of severe cracking section in 318 Erlangshan tunnel lining,analyzes the causes of the disease in combination with the tunnel geology and construction conditions,determines the reinforcement measures based on the covered arch reinforcement,and calculates and analyzes the safety of reinforcement measures by finite element software.

关 键 词：隧道衬砌开裂 衬砌加固措施 套拱加固 计算分析 

分 类 号：U457.3[建筑科学—桥梁与隧道工程]