隧洞工程地下水的处理

Treatment of Groundwater in the Tunnel Works

地下水是在水工隧洞施工中常遇到的问题，尤其是穿越岩溶区的深埋长隧洞，它易导致开挖涌水、坍塌等，严重影响施工进度、危及施工安全。地下水的长期排泄，亦将改变并直致破坏当地地下水、地表水环境，影响生态。结合引洱入宾工程建设一老青山隧洞及引洱北干渠一老鹰岩隧洞工程实例。

Groundwater is a common problem in the construction of hydraulic tunnels, especially the deep and long tunnels passing through the karst region which will easily cause water bursts after excavation, seriously affect the construction progress and endanger the construction safety. The long-term discharge of groundwater will also change and even damage the local environment of groundwater and surface water and affect the ecology. In combination with the project cases involved in the project of diverting the water from Erhai Lake to Binchuan--Laoqingshan Tunnel as well as the north main canal in the project of diverting the water from Erhai Lake to Binchuan--Laoyingyan Tunnel, explore the treatment principles of groundwater and some related treatment methods.