车载GPR检测运营地铁隧道的试验研究  

Experimental Study on Health Detection of Operating Metro Tunnels with Vehicle-mounted GPR

作　　者：苏国锋[1,2] 昝月稳 孙文龙[1] 蔡文博[1] 胡启华[1] 柳祥奎[4] SU Guofeng;ZAN Yuewen;SUN Wenlong;CAI Wenbo;HU Qihua;LIU Xiangkui(Department of Geological Engineering,Southwest Jiaotong University,Chengdu 611756;State-province Joint Engineering Laboratory of Spatial Information Technology for High-Speed Railway Safety,Chengdu 611756;Chengdu Research Institute of Southwest Jiaotong University Co.Ltd.,Chengdu 610031;Guangzhou Metro Corporation,Guangzhou 510030)

机构地区：[1]西南交通大学地质工程系,成都611756 [2]成都西南交大研究院有限公司,成都610031 [3]西南交通大学高速铁路运营安全空间信息技术国家地方联合工程实验室,成都611756 [4]广州市地下铁道总公司,广州510030

出　　处：《现代隧道技术》2018年第6期170-175,共6页Modern Tunnelling Technology

基　　金：长江学者和创新团队发展计划(IRT13092);教育部<轨道交通安全协同创新;2011>项目;四川省科技计划项目(2018GZ0043)

摘　　要：车载探地雷达技术(GPR)是隧道及地下工程结构健康安全评估领域的一项快速无损检测技术,其改变了传统手持探地雷达天线与隧道壁紧贴的测量方式,采用了空气耦合天线非接触远距离检测方式。文章分析了该技术应用于地铁隧道健康检查的车载检测条件及工作原理,给出了其在地铁隧道的试验效果,探讨了车载GPR技术检测地铁隧道的可行性。试验结果表明:该技术在车辆限界以内能够以地铁列车正常运行速度快速检测地铁隧道,可为运营地铁的维修管理和安全检查提供一种新的手段。The vehicle-mounted GPR technique,a non-contact and long-distance detection method with air-coupled antennas,is a fast nondestructive detecting technique in the field of structural health safety assessment of tunnels and underground engineering,which has changed the traditional measurement method of hand-held GPR antenna closely attached to the tunnel lining,This paper describes the detecting conditions and working principles of this technique used in health assessment of metro tunnels,and evaluates the feasibility of vehicle-mounted GPR to detect the metro tunnel in the basis of analyzing the test results.The experimental results show that this technique could detect the metro tunnel at normal operating speed within the vehicle gauge,providing a new method for the maintenance and safety inspection of operating metro tunnels.

关 键 词：地铁隧道 健康检测与评估 车载探地雷达 空气耦合天线 非接触远距离检测 

分 类 号：U457.2[建筑科学—桥梁与隧道工程]