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《工程(英文)》 >> 2018年 第4卷 第1期 doi: 10.1016/j.eng.2017.07.001

超特长隧洞TBM 集群施工风险管控技术

Xinjiang Association for Science and Technology, Urumqi 830011, China

收稿日期: 2017-05-24 修回日期: 2017-06-24 录用日期: 2017-07-14 发布日期: 2018-02-23

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摘要

北疆供水二期工程,总长540 km。其中,隧洞总长516 km,加上49 条各种缓斜井和竖井,隧洞掘进总进尺569 km。特别是喀—双隧洞单洞长283 km,是目前世界最长的输水隧洞。主洞划分了18 台隧洞掘进机(TBM)掘进段和34 个钻爆法施工段,施工掌子面多达91 个。该工程不仅对建设管理、风险防控、安全高效施工提出前所未有的挑战,同时也对TBM 及其配套设备的设计、制造、运维提出了更高的要求。有必要根据工程特点和不良地质条件,分析工程建设面临的重大难题和关键技术,系统查找风险源、合理划分风险等级、明确责任主体、建立分级管控机制。本文提出了应用超前地质预报技术、岩机信息感知和融合的智能掘进技术、监测预警及现代信息技术,用以科学指导风险管控,提高安全掘进效率的技术思路。

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