综合地质超前预报方法在超深埋长隧洞中的应用
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摘要
超深埋长隧洞工程地质条件复杂多变,准确探明隧洞前方地质灾害,是一项难题。最近几十年来,国内外都将隧洞地质超前预报列为主要突破的技术课题。在锦屏辅助洞施工中,综合应用了宏观地质预报、长(短)距离仪器预报(主要是TSP和地质雷达)、超前勘探法等相结合的一整套地质超前预报体系,在一定程度上指导了隧洞的安全施工,可为锦屏二级水电站后面的4条引水隧洞及同类工程提供技术资料和经验借鉴。
The engineering geologic condition is complicated in deep- buried long tunnels.How to accurately ascertain the geological disasters ahead tunnel is a difficult problem. In recent decades, The geological forecast were treated as a major breakthrough technology subject at home and abroad. In Jinping II auxiliary cave construction, the whole set of prediction system were adopted which include the macroscopic geological forecast and geological sketch adding forecast combining long and short instrument(mainly the TSP and geological radar) and advanced exploration method of combining, which guide the safety of tunnel construction to a certain extent, and can provide technical data and experience for latter 4 headrace tunnels of Jinping II project and the similar projects.
引文
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