不同埋深铁路路基隐伏岩溶病害的地质雷达检测方法  

GPR Method to Detect Covered Karst Disease of Deeply Buried Railway Subgrade

作　　者：柯在田 齐法琳 邓普 KE Zaitian QI Falin DENG Pu(Infrastructure Inspection Research Institute, China Academy of Railway Sciences, Beijing 100081, China)

机构地区：[1]中国铁道科学研究院基础设施检测研究所,北京100081

出　　处：《中国铁路》2017年第10期1-7,共7页China Railway

基　　金：国家自然科学基金项目(U1434211)

摘　　要：针对铁路路基存在的隐伏岩溶病害问题,采用车载地质雷达检测技术进行模拟试验研究。论述和分析地质雷达工作原理,通过选择不同频率天线,对不同埋深隐伏岩溶典型病害的雷达图像进行数值模拟,对比分析不同频率天线对不同深度隐伏岩溶病害的探测效果,提出不同埋深病害的最佳检测方法。经现场试验验证,采用车载地质雷达检测系统配置方案可取得良好检测效果。The onboard ground penetrating radar（GPR） detection technology is used to simulate and study the covered karst disease of subgrade. The paper analyzes the working principle of the radar, which is by choosing antennas with different frequencies, to make numerical simulation of radar images of deeply buried karst diseases, compare and analyze the detection results of the diseases buried in different depths, and propose the tailored detection methods for different-depth diseases. Good detection results are acquired by this method according to on-site test.

关 键 词：铁路路基 隐伏岩溶病害 地质雷达 正演模拟 埋深 

分 类 号：U213.1[交通运输工程—道路与铁道工程] U25