基于GPR正演技术的路面含水空洞雷达检测图像解译技术研究  

Research on Interpretation Technology of Pavement Water Cavern Radar Detection Image Based on GPR Forward Modeling Technology

作　　者：邱怀中 QIU Huaizhong(Hubei Hanshi Expressway Administration,Wuhan 430051,China)

机构地区：[1]湖北省交通运输厅汉十高速公路管理处,武汉430051

出　　处：《交通科技》2020年第6期79-84,共6页Transportation Science & Technology

摘　　要：为明确典型含水空洞病害的雷达检测特征图像、准确分析雷达检测数据,现场钻芯取样测量汉十高速路面各结构层厚度及相对介电常数,基于上述测量数据构建典型含水空洞病害三维模型并导入已编写的三维有限元正演软件中。基于GPR正演模拟结果,明确典型含水空洞病害雷达检测图像。研究表明,通过该方法可准确查找、定位、分析路面结构中含水空洞病害的位置及含水率。In order to clarify the radar detection characteristic images of typical water-containing cavities,and analyze the radar detection data accurately,the thickness of each structural layer and the relative dielectric constant of the Wuhan-Shiyan expressway pavement were measured by field drilling core sampling.Based on the above measured data,a three-dimensional model of typical water-containing cavity disease is constructed and imported into the written 3D finite element forward modeling software.Based on the GPR forward simulation results,the radar-detected image of typical water-containing cavity disease is determined.The research shows that this method can accurately find,locate,and analyze the position and moisture content of the water-containing cavity disease in the pavement structure.

关 键 词：探地雷达 道路检测 介电模型 介电特性 图像模拟 路面含水空洞 

分 类 号：U412.6[交通运输工程—道路与铁道工程] U418.6