引大济湟工程隧道三维超前地质预报

Tunnel 3D Advanced Geological Prediction in Yinda-Jihuang Project

引大济湟工程引水隧洞线路长、埋深大、地下水位高,且沿途穿越多条大断层,主要工程地质问题突出。为了减少和有效预防地质灾害发生,准确预判掌子面前方地质条件和可能出现的地质灾害,现场开展了TGS360 Pro隧道三维超前地质预报与分析,成功预报了可能发生涌水、突泥和坍塌等地质灾害的隧洞桩号洞段,并采取了应急处理措施,为施工开挖方案和支护措施提供了有效依据。

The diversion tunnel of the Yinda-Jihuang project has an unfavorable engineering condition such as long tunnel route,deep buried depth,high groundwater level,and passes through many large faults along the tunnel route.In order to reduce and effectively prevent the occurrence of geological disasters and predict the geological condition and potential geological disasters at the working surface,the project has carried out the 3D advanced geological prediction and analysis with TGS360 Pro,which successfully predicted the tunnel chainage section where may occur water burst,mud gushing and collapse may occur,and emergency measures have been taken.The geological prediction provides a basis for the construction excavation plan and the support measures.