物探与化探2016，Vol.40Issue(5)：1046-1050,5.DOI:10.11720/wtyht.2016.5.33
金属管线对探地雷达探测道路地下病害的干扰
The study of the interference region around metal pipeline in underground disease detection of urban road
摘要
Abstract
As a geophysical method based on the reflection of electromagnetic wave, ground penetrating radar ( GPR) is interfered by the underground metal pipeline in underground disease detection of urban road. In order to find out the interference region around the metal pipeline, the authors deduced the calculating formula of the interference region based on the resolution of GPR. After the numeri⁃cal simulation and the physical model simulation, the authors found that there is an interference region with a vertical height of the elec⁃tromagnetic wave length beside the metal pipeline. When the underground disease is located in this region, its reflection wave group will be disturbed, which is not conducive to the interpretation of disease's attribute and scale. And when the underground disease is located under the metal pipeline, it cannot be detected by the current single type antenna.关键词
探地雷达/地下病害/干扰区/金属管线/空洞Key words
GPR/underground disease/interference region/metal pipeline/cavity分类
天文与地球科学引用本文复制引用
肖敏,陈昌彦,贾辉,苏兆锋,白朝旭,张辉..金属管线对探地雷达探测道路地下病害的干扰[J].物探与化探,2016,40(5):1046-1050,5.基金项目
北京市优秀人才培养集体项目（F类）“首都（特大城市）道路交通安全运营地下风险预防技术” （）
