综合探测在地铁深埋金属管线定位中的应用  

The application of comprehensive detection means in the positioning of deep-buried metal pipelines in Metro engineering

作　　者：高福华 Gao Fuhua(Hefei Urban Rail Transit Co.Ltd.,Hefei 230001,China)

机构地区：[1]合肥城市轨道交通有限公司

出　　处：《工程勘察》2020年第1期75-78,共4页Geotechnical Investigation & Surveying

摘　　要：精准定位深埋管线是工程领域的一大难题,国内不少专家在深埋管线探测方面做了很多有益的探索,但目前仍没有成熟易行的方法。本文针对合肥市轨道交通4号线巢湖路—和平路区间南淝河段深埋DN800供水铸铁管定位问题,先后采取地微动、长导线源电磁法、PCM+及剖面探测等方法进行了综合探测,并采取钎探验证,最终获得了深埋管线精确可靠的平面位置和埋深。实践证明,采取PCM+探测和剖面探测相结合的方法定位深埋金属管线是有效可靠的,满足设计要求。本项目探测方法对类似工程具有一定借鉴意义。Detecting and locating deep buried pipelines is a difficult problem in engineering.Many domestic experts have made a lot of useful explorations,but there is still no mature and feasible method at present.In order to locate the DN800 water supply pipeline under Nanfei River in the Chaohulu to Hepinglu section of Hefei rail transit line 4,the methods including ground micro-motion,long wire source electromagnetic method,PCM+,profile detection are employed and finally verified by drilling.The combination detection method of PCM+and profile detection is proved effective and feasible in the practice which is satisfied with the design requirements.The detection method used in this project could be referred in similar projects.

关 键 词：轨道交通 深埋管线 地微动 PCM+ 剖面探测 钎探 

分 类 号：U231.1[交通运输工程—道路与铁道工程]