地质雷达在顶管施工前隐患排查中的应用  

The Aplication of GPR in the Detecting Defent Before Jacking Pipeline Construction

作　　者：缪爱伟[1] 孙世国[1] 冯少杰[1] 王佳[1] 刘文波[1] 

机构地区：[1]北方工业大学建筑工程学院,北京100144

出　　处：《城市勘测》2013年第2期160-163,共4页Urban Geotechnical Investigation & Surveying

基　　金：国家自然科学基金项目(41172250);"十二五"国家科技支撑计划项目(2012BAK09B06);北京市创新人才基金项目(PHR201006118)

摘　　要：介绍了地质雷达的工作原理、探测方法、结果处理方法以及如何识别异常雷达图像,并将地质雷达应用到城市热力管施工前地质隐患排查中,结合工程资料,对探测结果进行了分析,得出探测结果表明地表地下2.6 m～4.0 m深度范围内存在松散土层,地下存在管线,管道埋深约为2.8 m,没有明显地下空洞等不良地质体,为下一步顶管施工的安全提供了有力的技术支撑,同时为类似工程的顶管施工前隐患排查提供了借鉴。This paper of dealing the results and briefly introduced operating principle of Ground Penentrating Radar,detection method, method how to identify abnormal radar images . And then GPR was applied to the construction of geo- logical hazards investigation before jacking pipe construction in cities. Combined with engineering data,it analysis the de- tection results. The detection results showed that there existed loose soil layer in the underground with depth ranging from 2.6m to 4.0m. Meanwhile there existed underground pipeline whose depth is 2.8m. And there was no obvious under- ground cavity. In a word,the detecting results supplied good technical support to next jacking pipe construction, mean- while this engineering provided good preference for similar engineering.

关 键 词：地质雷达 顶管施工 隐患排查 

分 类 号：P631[天文地球—地质矿产勘探]