摘要
青海省引大济湟调水总干渠隧洞工程全长24.17 km,采用德国维尔特生产直径为5.93 m TBM机和法国生产直径5.75 m的NFM-TBM机施工掘进,因隧洞围岩具有高应力、大断层、大埋深等罕见技术难题,历时11年之久才全面贯通。总结分析了在引大济湟调水总干渠隧洞施工过程中遇到的部分难题、卡机问题、以及采取的脱困技术,提出了一种非常规拆卸方式,即同时拆卸两台TBM掘进机,避免按照顺序的拆卸,可节省50%的时间,极大地减少了拆卸费用,为以后类似高原、高寒地区隧洞施工有效节省投资、节约拆卸时间提供了参考依据。
yindajihuang water diversion main line project, with high stress and big faults qinghai province, large depth and other rare technical problems, tunnel length 24. 17 km, which lasted 11 years through a comprehensive, With TBM diameter of 5.93 meters and diameter of 5.75 French NFM-TBM boring. This paper summarizes the problems encountered in drawing big economic, the main canal Diversion Tunnel Construction Huang in the process of taking out technology, and analyzed the disassembly process and step two roadheader play a major role, effectively saving investment and removing time for similar plateau and cold area tunnel construction to provide a reference.
出处
《中国农村水利水电》
北大核心
2017年第10期120-124,130,共6页
China Rural Water and Hydropower
关键词
调水总干渠
TBM掘进机
脱困技术
拆卸步骤
高应力
water diversion main line
TBM tunneling machine
rescue technology
disassembly steps
high stress
