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引汉济渭秦岭输水隧洞全长81.625km,最大埋深2000m,具有地质条件复杂、埋深大、地应力高、地温高、施工通风及运输距离长、反坡排水困难等特点,隧洞施工难度堪称世界之最。该工程39.13km拟采用2台TBM施工,42.495km采用钻爆施工。本文针对引汉济渭秦岭输水隧洞工程的地质风险,提出了TBM施工的适应性设计及相应施工措施。
With the features of complex geological conditions, large buried depth, high ground stress, high ground temperature, long ventilation distance, long transportation distance and difficult drainage in back-slope, the tunnel with a total length of 81.625km and a depth of 2000m is cited. The tunnel construction The difficulty of the world’s most. The project 39.13km to be used two TBM construction, 42.495km using blasting construction. In this paper, according to the geological risk of Hanzijin Qinling water conveyance tunnel project, the adaptive design of TBM construction and corresponding construction measures are put forward.