本文根据大量工程实践经验,总结分析洞内水的来源,大量涌水前的先兆和予测方法;根据水源与隧洞相对位置以及地质情况,选择截流方法与截流措施;当排水措施还不能满足施工要求时,应该及时采取有效的堵水措施。最后论述了隧洞在开挖,支护以及运转过程中的排水措施。 Based on a large number of engineering practice, this paper summarizes the sources of water in the cave and the precursors and prediction methods before a large amount of water inflow. According to the relative position of the water source and the tunnel and the geological conditions, it chooses the interception method and interception measures. When the drainage measures can not meet the construction requirements When it should take timely and effective water blocking measures. Finally, the tunnel drainage, excavation, support and operation of the drainage measures.