摘要
城市道路管线大量应用PE、PVC等非金属材质,由于非金属管线不具有导电性和导磁性,常用的电磁感应法探测手段对于非金属管线探测基本无效,有效的非金属管线探测技术尤其重要,而非金属管线的精确定位在某些重大工程中更为关键。本文介绍了采用探地雷达、地震映像和高密度电法等综合物探技术在非金属管线精确定位的应用,实践表明,综合物探技术可以在非金属管线精确定位中取得较好的效果,可为类似非金属管线探测提供借鉴。
Non-metallic materials are widely used in urban road pipelines.Due to the non-metallic pipelines have no conductivity and magnetic conductivity,the commonly used electromagnetic induction method is basically ineffective for the detection of non-metallic pipelines.Effective non-metallic pipeline detection technology is particularly important,and the precise location of non-metallic pipelines is more critical in some major projects.This paper introduces the application of GPR,seismic imaging and high-density electrical method in the precise positioning of non-metallic pipelines.The practice shows that the comprehensive geophysical prospecting technology can achieve good results in the precise positioning of shallow buried non-metallic pipelines,which has certain reference significance for similar non-metallic pipeline detection.
作者
徐长虹
邵月中
Xu Changhong;Shao Yuezhong(Ningbo Institute of Surveying and Mapping & Remote Sensing,Ningbo 315042,China)
出处
《城市勘测》
2022年第3期170-173,共4页
Urban Geotechnical Investigation & Surveying
关键词
综合物探
非金属管线
精确定位
integrated geophysical technology
nonmetal pipelines
precise position
作者简介
徐长虹(1972—),男,硕士,正高职高级工程师,主要从事地下管线探测技术和质量管理工作,E-mail:1478969741@qq.com。
