【摘要】：青海省引大濟(jì)湟調(diào)水總干渠隧洞工程全長(zhǎng)24.17 km,采用德國(guó)維爾特生產(chǎn)直徑為5.93 m TBM機(jī)和法國(guó)生產(chǎn)直徑5.75 m的NFM-TBM機(jī)施工掘進(jìn),因隧洞圍巖具有高應(yīng)力、大斷層、大埋深等罕見技術(shù)難題,歷時(shí)11年之久才全面貫通�？偨Y(jié)分析了在引大濟(jì)湟調(diào)水總干渠隧洞施工過(guò)程中遇到的部分難題、卡機(jī)問題、以及采取的脫困技術(shù),提出了一種非常規(guī)拆卸方式,即同時(shí)拆卸兩臺(tái)TBM掘進(jìn)機(jī),避免按照順序的拆卸,可節(jié)省50%的時(shí)間,極大地減少了拆卸費(fèi)用,為以后類似高原、高寒地區(qū)隧洞施工有效節(jié)省投資、節(jié)約拆卸時(shí)間提供了參考依據(jù)。
[Abstract]:For the total length of 24.17 km, of the main diversion tunnel project in Dazihuang, Qinghai Province, a 5.93 m TBM machine in Germany and a 5.75 m in diameter NFM-TBM machine in France are used to construct the tunnel. The surrounding rock of the tunnel is of high stress and large fault. Deep buried and other rare technical problems, took 11 years to fully through. This paper summarizes and analyzes some difficulties encountered in the construction of the main trunk channel tunnel in Yida, Yellow River, and the problems of the clamping machine, as well as the adopted techniques of getting rid of the difficulties, and puts forward a kind of unconventional disassembly method, that is, to disassemble two TBM tunneling machines at the same time. Avoiding the sequential disassembly can save 50% of the time and greatly reduce the cost of disassembly, which provides a reference basis for saving investment and time for tunnel construction in the future similar to plateau and alpine region.
【作者單位】： 青海省引大濟(jì)湟工程建設(shè)管理局;意大利CMC公司引大濟(jì)湟工程項(xiàng)目部;
【分類號(hào)】：TV554

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