水文观测系统在山区复杂岩溶隧道中的应用

水文观测系统的应用是指通过在复杂岩溶隧道建立水文观测系统，收集降雨量、涌水量、水压、深孔水位变化等数据，并对这些数据进行综合分析，以判断隧道施工过程中地质灾害（突水、突泥等）发生的可能性，据此可及时作出预警，确保施工安全。同时，这些监测数据也可作为结构设计的重要参考因素。此文结合宜万铁路的施工经验，对复杂岩溶隧道条件下建立水文观测系统的全过程作了详细介绍。

Applications of hydrological observation systems in complex karst tunnels located in mountain areas

Applications of hydrological observation systems refers to establishment of hydrological observation systems in complex karst tunnels located in mountain areas to collect datas about rainfalls, water inflows, water pressures and water level changes of deep wells, comprehensive analysis of these datas, subsequent judgments of chances of geological hazards in the construction process and ultimate precautions for construction safeties. In the meanwhile, these monitoring datas could also provide references for structure designing of karst tunnels. Combined with construction experiences summarized from Yiwan Railway con- structions, this article performs a detailed introduction of the whole process of establishing hydrological observation systems in complex karst tunnels located in mountain areas.