南川黄泥垭隧道工程对水文地质条件的影响分析

隧道工程建设无疑对岩溶地区的水文地质环境地质带来巨大冲击。文章以重庆市南川区黄泥垭隧道工程为实例，采用地面调查、示踪试验、长观监测等方法进行综合研究，剖析隧道工程对隧址区水文地质环境的影响。研究结果表明:黄泥垭隧道工程改变了隧址区的地下水流场，疏干地表地下水、加剧干旱缺水程度，并随之出现新的人工水点——隧道涌水；同时隧道工程影响了水资源空间分配格局、降低了水资源利用率。 

Analysis on the hydrogeological influence of the Huangniya tunnel in Nanchuan district of Chongqing

It is certain that tunnel construction can bring great impacts on the hydrogeological environment in karst areas. Taking the Huangniya tunnel project in Nanchuan district of Chongqing as an example, this paper uses ground investigation, tracer tests, long-sight monitoring and numerical simulation to analyze the influence of tunnel engineering on the hydrogeological environment. The results show that the Huangniya tunnel project has changed the groundwater flow field in the tunnel area, drained the groundwater, exacerbated drought and water shortage, and led to a new artificial water point-tunnel of gushing water. At the same time, the tunnel project destroyed the water resource allocation pattern and reduced the utilization rate of water resources.