深埋管线的几种探测技术与规程精度探讨

Several Kinds of Detecting Technique to Supper Deep Pipeline and Study of Specification Accuracy

由于现代管线非开挖施工技术的大量使用,不时出现埋深大于3 m的地下管线,它给探测定位带来新问题。本文介绍了我国管线探测工作者最近几年在深埋管线探测的几种探测方法技术,包括地面高精度磁测、井中磁梯度探测、探地雷达、电磁法管线探测仪等,对管线规程的有关精度作了探讨。

AS the development of modern no dig technique in pipeline installation, more deep than 3m in depth of underground pipeline is often appears. It brings the new problem of locating pipeline position. This text introduce several kinds of detecting method and technique to supper deep pipeline in last few years in our country, Include the ground high -precision magnetic measurement, borehole magnetic gradient detection, ground penetrating radar（ GPR）, the electromag- netism method pipeline detecting instrument etc. , and made a study to the relevant accuracy of the pipeline regulations.