电阻率法检测公路缺陷的仿真研究  

Simulation study on detection of expressway defects with resistivity method

作　　者：王秋生[1] 刘川梅[1] 杨浩[1] 袁海文[1] 武新成[2] 彭琴[2] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100191 [2]新疆生产建设兵团公路科学技术研究所,新疆乌鲁木齐830054

出　　处：《中国测试》2011年第4期54-57,共4页China Measurement & Test

基　　金：西部交通科技项目(20093180025)

摘　　要：针对公路缺陷检测中传统检测方法效率低且对公路造成损害大的问题,提出一种采用电阻率法检测公路内部缺陷的仿真方法。首先根据检测原理及电极布置方式,建立基于电阻率法检测公路内部低阻异常体的模型,然后通过有限元计算求得检测过程中不同测点的电压信号,最后讨论电压信号的变化与公路路基内低阻异常体大小、位置的关系。仿真结果表明:电压信号的动态变化能够反映公路内低阻异常体的特征,可以为电阻率法检测的具体实施提供理论参考。In order to improve the efficiency of traditional detecting methods and reduce the damage brought to expressway,a simulation method was proposed in this paper to simulate the process of expressway defecting using resistivity method.First,a model for detecting internal defects of expressway using resistivity method was established according to its detection principle.Then the voltage signals of different detecting points can be calculated through finite element analysis.At last,the relationships between the changes of voltage signal with the size and location of low resistivity body were discussed.Simulation results indicated that the voltage signals can reflect the characteristics of low resistivity body.This work can provide a theoretical basis for expressway detection using resistivity method.

关 键 词：公路检测技术 电阻率法 偶极装置 低阻异常体 有限元分析 

分 类 号：U418.4[交通运输工程—道路与铁道工程] TP391.9[自动化与计算机技术—计算机应用技术]