茅坪山隧道水文地质时序性研究

基于茅坪山隧道地形地貌、地层岩性、地质构造、水文地质等条件的研究,对茅坪山隧道进行了水文地质分区,有利于茅坪山隧道施工风险评估及涌突水的预防;在施工过程、隧道贯通后进行水文地质持续性观测,有助于辅助坑道“临时工程发挥永久作用”及岩溶水动力分带的再确认;在运营期间进行水文自动化远程观测,为隧道运营风险预测、预警提供参考。

Study on Time-ordered Hydrogeology of Maoping Mountain Tunnel

Depending on the study of the topographic, lithologic, geological structure, and hydrogeological conditions of Maoping Mountain Tunnel, the hydrogeological division was carried out, which is beneficial to the evaluation of construction risk and the prevention of water burst. The continuity of hydrogeology was observed during the construction and after the tunnel breakthrough, which helps the service galleryplay a permanent role as temporary work and reconfirm the karst hydrodynamic zoning. In the course of operation, automatic remote hydrologic observation should be carried out to provide references for the risk prediction and early warning.