公路隧道二次衬砌边墙压裂病害成因及处治研究  

STUDY ON CAUSE AND TREATMENT OF FRACTURE DAMAGE OF SECONDARY LINING SIDE WALL OF HIGHWAY TUNNEL

作　　者：雒成贤 周琪哲 Luo Cheng-xian;Zhou Qi-zhe

机构地区：[1]甘肃省交通规划勘察设计院股份有限公司,兰州730030 [2]甘肃畅陇公路养护技术研究院有限公司,兰州730030

出　　处：《建筑技术开发》2023年第6期79-81,共3页Building Technology Development

摘　　要：公路隧道二次衬砌边墙压裂已成为目前运营隧道非常严重的结构变形病害之一,就某隧道出现的此类病害进行了专项检测,深入分析了病害产生的原因,结果表明其主要由围岩自身软弱、支护结构设计薄弱、工程实体质量较差导致。对此采用扰动较小的钻孔注浆+钢带补强方案,实施了病害加固维修,为类似病害处治提供了参考。The fracturing of the side wall of the second lining of highway tunnel has become one of the most serious structural deformation diseases in the current operating tunnel.In this paper,special detection was carried out for such diseases in a tunnel,and the causes of the diseases were deeply analyzed.The results showed that the problems were mainly caused by the weakness of surrounding rock itself,the weak design of supporting structure and the poor quality of engineering entity.The method of drilling grouting+steel belt reinforcement with small disturbance is adopted to carry out the repair of the disease,to provide reference for the treatment of similar diseases.

关 键 词：二衬边墙 混凝土压裂 病害成因 维修处治 

分 类 号：U457.2[建筑科学—桥梁与隧道工程]