北京水务Issue(6)：59-64,6.DOI:10.19671/j.1673-4637.2024.06.011
曲线顶管内穿钢管运输与焊接技术研究
Research on transportation and in-situ welding technology of curved pipe jacking through steel pipe
王梓任 1马帅 1任强1
作者信息
- 1. 北京金河水务建设集团有限公司 北京 102206
- 折叠
摘要
Abstract
Section 13 of the Daxing branch of the South-to-North Water Diversion Project involves a pipe jacking construction with a long construction distance and curved sections.Considering the proj-ect's characteristics,an internal steel pipe device was developed and combined with in-situ welding techniques.Engineering applications demonstrated that using a Y-groove as the welding joint signifi-cantly improved the tensile strength of the steel pipe.Compared to the push-pull method and the spe-cial trolley method,the internal steel pipe method saved 1.81 million yuan and 1.36 million yuan during pipeline transportation,and increased construction efficiency by 47.3％and 19.6％.Additionally,the shaft construction costs were reduced by 2.478 million yuan compared to the special trolley method.This technology offers fast construction speed,low cost,and minimal environmental impact,which pro-vide significant economic and social benefits and make it suitable for promotion and application in simi-lar projects.关键词
内穿钢管/原位焊接/Y型坡口Key words
inner steel pipe/in-situ welding/Y-bevel分类
建筑与水利引用本文复制引用
王梓任,马帅,任强..曲线顶管内穿钢管运输与焊接技术研究[J].北京水务,2024,(6):59-64,6.
