既有隧道改建工程防渗检测技术研究  

Study on seepage testing of the rebuilding of existing tunnels

作　　者：郑俊杰[1] 梁艳[1] 资谊[1] 

机构地区：[1]华中科技大学道路与桥梁工程系,湖北武汉430074

出　　处：《铁道科学与工程学报》2006年第1期83-86,共4页Journal of Railway Science and Engineering

摘　　要：介绍了既有隧道改建工程的防渗检测技术,探地雷达和湿度测试仪的探测原理。结合既有陈家冲隧道改建工程,采用探地雷达和微波湿度测定仪检测了新旧混凝土接缝处结合状态和渗漏情况。探地雷达检测结果与微波湿度测试仪测试结果比较吻合,探测过程中获得的信息揭示了新旧混凝土界面附近水分的分布情况。监控结果有助于评判设计方案的合理性和检验隧道改建工程防渗措施的有效性。The seepage monitoring methods of the rebuilding tunnels are briefly introduced in this paper. The testing principles of ground penetrating radar and microwave humidity measurement equipment are discussed. For the Chenjiachong tunnel rebuilding project, the junction and seepage of the fresh and old concrete are tested by using the ground penetrating radar and microwave humidity equipment. The results monitored by the ground penetrating radar are coincided with those tested by microwave humidity equipment. The information obtained in this process has shown the moisture distribution in the junction of the fresh and old concrete . The results are useful for judging the rationality of design and proving the validity of seepage prevention in the rebuilding.

关 键 词：隧道 渗漏 探地雷达 湿度分布仪 检测 

分 类 号：U456[建筑科学—桥梁与隧道工程]