轨道交通工程长水平勘察孔施工技术

Construction Technology of Long Horizontal Survey Hole For Rail Traffic Engineering

该文介绍了通过中小型水平定向钻钻探工艺,解决了徐州轨道交通徐州站无法施工垂直钻探孔的工程勘察难题。水平定向钻重点解决了长距离水平钻孔施工、孔壁维护、岩性判别等难题;通过水平井内测井技术很好地解译了孔内1.0m环空内的地层情况、岩溶发育情况等,达到了工程地质勘察的目的。该文对类似工程具有一定的借鉴意义。

This paper introduces that by the drilling technology of small to medium sized horizontal direc- tion drilling, the engineering survey problems of the vertical drilling hole cannot be constructed in the process of construction in Xuzhou station of Xuzhou rail traffic is sloved. The horizontal direction drilling mainly sloves the problems of long distance horizontal drilling construction, hole wall maintenance, lithol- ogy discrimination and so on; Through the well logging technology in the horizontal well, the formation condition,karst development of 1.0m annulus in the hole are interpreted well. The purpose of engineering geological surveying is reached. This article has certain reference significance to the similar projects.