摘要
平行管线探测资料解释是管线探测技术中需要解决的一大难题。本文首先分析了两条平行管线同埋深、不同电流方向情况下的不同间距的H_x磁场曲线分布特征、定位精度。然后分析了三条平行管线的不同电流方向、间距、深度的H_x剖面曲线。同时,提出了探测平行管线的最佳方法和手段,剖析了平行管线探测的干扰因素。最后,列举了两个平行管线探测的实例,说明了方法的探测效果。
It is one of the most difficult problems to be solved for the parallel pipeline in the detecting technique of underground pipeline. The paper begins with the Plots that show the Hx curves With same depth and different electric current direction and distance for two parallel pipelines, and their location accuracy. Plots also show the Hx curves with different depth, electric current direction and distance for＇three parallel pipelines. The paper then proposes some best detection method for it, and the interferential factor on parallel pipeline acquisition is also studied. Finally,.for showing the validity of this method, the paper describes two examples of probing long distance and parallel pipelines.
出处
《工程勘察》
CSCD
北大核心
2008年第2期66-71,共6页
Geotechnical Investigation & Surveying
关键词
平行管线
同向电流
反向电流
剖面曲线
parallel pipeline
same direction current
inverse current
profile curve
