地质雷达在隧道衬砌质量检测中的应用  

Applying Ground Penetrating Radar to Detect Concrete Lining Quality in Tunnel Engineering

作　　者：韩桂武[1] 程梦鹏[1] 苏卫锋[1] 白雪冰 刘刚[1] 陈周[1] 

机构地区：[1]中国石油天然气管道工程有限公司,河北廊坊065000 [2]北京鑫衡运科贸有限公司,北京100000

出　　处：《石油工程建设》2008年第3期53-56,共4页Petroleum Engineering Construction

基　　金：国家自然科学基金资助项目(50474018)

摘　　要：介绍了雷达波的传播、反射系数、常用介质电性特征及地质雷达的工作原理,对隧道检测的测线布置、雷达波速的标定、天线频率的选择、里程的标记等进行了阐述,并以RAMAC地质雷达为例,对雷达数据中的干扰噪声消除方法进行了探讨,通过现场检测资料判断初衬厚度、钢支撑分布、衬后围岩裂隙、二衬厚度及浇灌质量等情况。This paper introduces the radar wave transmission and its reflection coefficient, dielectric constants of frequently used materials and working principle of ground penetrating radar (GPR), and describes thelaying of survey lines, calibration of radar wave velocity, selection of antenna frequency and allocation of mileage marks. It discusses the method of eliminating noise involved in radar data by taking RAMAC ground penetrating radar as an example. Finally through analyzing the site detection data, the thickness of the primary concrete lining, the distribution of the steel support structures, the wall rock fracture after lining, the thickness of the second concrete lining and the concrete pouring quality are determined.

关 键 词：隧道工程 地质雷达 质量检测 

分 类 号：U456.3[建筑科学—桥梁与隧道工程]