某水利枢纽交通洞涌水模式地质分析

Geological Analysis on Origin Mechanism of Water Gushing in an Access Tunnel

某水利枢纽场内公路交通洞施工过程中遇到强烈涌水地质问题,现场地质工程师依据基础地质资料,构建了可能造成隧洞涌水的三种成因模式,综合分析地质素描图、洞内超前地质钻孔、涌水量观测、水文地质调查等资料,判定向斜富水带是隧洞涌水的直接原因,并以此地质结论为指导,确定了科学合理的施工方案,成功穿越了隧洞强烈涌水段。该项研究成果深化了工程区水文地质条件的认识,对类似隧洞工程实践具有参考价值。

An access site anlyzed its origin ing problem. Meanwil process they draw a gives a good example tunnel happened to meet a serious water gushing accident in excavation. The geological engineers in mechanism depends on basic geological conditions, and made an approximate prediction about gushe the authors also provide reasonable treatments to across the gushing area. Through all the gushing conculusion that finding out origin mechanism is extremely important. This successful experience in tunnel advanced geology predication, it would be helpful to similar tunnel project.