直接铺管施工技术与应用  

Construction Technology and Application of the Direct Pipe Method

作　　者：王乐 WANG Le(No.4 Branch Company of China Petroleum Pipeline Engineering Co.,Ltd.,Langfang 065000,Hebei,China)

机构地区：[1]中国石油管道局工程有限公司第四分公司,河北廊坊065000

出　　处：《隧道建设（中英文）》2018年第9期1566-1572,共7页Tunnel Construction

摘　　要：直接铺管施工技术及其装备作为近年来国际非开挖领域的新技术、新设备、新工法,在定向钻施工场地受限、管道出入土两点落差较大、管道埋深较浅、盾构顶管施工费用较高时,有一定的施工优势。该工法结合了微型隧道施工和水平定向钻2项技术的特点,在利用隧道掘进设备进行隧道开挖的同时,利用推管设备将预制好的管道同步铺设,将隧道施工与管道铺设同步进行。陕京四线管道工程无定河项目穿越轴线落差大、地质复杂,选择采用直接铺管法进行穿越施工。通过对掘进机和推管机进行设备选型分析,以及对隧道掘进、管道推进、测量控向、润滑减阻和管道回拔等关键技术进行研究,该工法在无定河项目得到成功应用。最后,对直接铺管技术在定向钻工程抢险、定向钻套管铺设、陆地管道和深海排污施工领域,以及推管机为定向钻工程提供助力、用于管道损坏或卡死时退回取出和建成隧道内管道安装等方面的拓展应用进行了介绍。In recent years,the direct pipe construction technology,as a new construction method and a new equipment in the international trenchless field,has gained advantages over the horizontal directional drilling(HDD)method where the construction site is limited,there is a big elevation drop between the launch and reception points,the burial depth of the pipeline is shallow,or the construction cost of the pipejacking is high.This method combines the characteristics of microtunneling and HDD.When the tunneling equipment is excavating,prefabricated pipes are laid by pipe thrusters simultaneously.The Wuding River Crossing Project of the 4th Shaanxi-Beijing Pipeline has a big elevation drop and a complex geology.The crossing project was carried out using the direct pipe method,which achieved a fast construction speed,simple construction process and less land occupation.The project has also achieved good economic and social benefits.

关 键 词：非开挖技术 直接铺管法 定向钻 管道铺设 同步施工 

分 类 号：U455.46[建筑科学—桥梁与隧道工程]