复杂条件下近间距地下管线的探测模拟  

Detection Simulation of Small Intervals Underground Pipelines under Complicated Condition

作　　者：赵欣[1] 王希良[1] 刘珍岩[2] 习建军[2] 李占岭[2] 

机构地区：[1]石家庄铁道大学,石家庄市050043 [2]河北省电力勘测设计研究院,石家庄市050031

出　　处：《勘察科学技术》2014年第5期45-49,共5页Site Investigation Science and Technology

摘　　要：近间距地下管线探测是当今管线探测的难点,再加上复杂的层状介质更使管线探测的难度增加,雷达剖面上异常体的判断比较困难。为了确定异常体的位置,提高解释的准确性,本文利用探地雷达模拟软件GprMax结合Matlab语言对层状条件下近间距地下管线中的水平并行管线、垂直并行管线、垂直交叉管线进行了正演模拟,模拟结果表明并行管线的图像复杂,金属管线和非金属管线的雷达反射波图像不同,可据此判断出管线材质。模拟结果对实际近间距地下管线探测起到了很好的指导作用。The undergrouuu pipeline detection, plus the complex layered medium increasing the difficulty of the pipeline detecuon, ann it is difficult to judge abnormal bodies on radar section. In order to determine the position of abnomal bodies,improve interpretation accuracy, the paper uses ground penetrating radar （GPR） simuiatim soft- ware GprMax combined with Matlab language to small intervals underground pipeline horizontal parallel line, vertical parallel line, vertical cross line to the forward simulation under layered condition. The simu- lation results indicates that parallel pipeline images are complex and radar reflection wave image of mental and non mental are different. Therefore ,based on these informations can judge the pipelines material. The re- suits of simulation can play a guiding role in actual small intervals underground pipelines detection.

关 键 词：近间距 地下管线 探地雷达 模拟 

分 类 号：TU990.3[建筑科学—市政工程]