复杂地质条件下的隧道涌突水是常见的施工灾害之一，严重威胁着现场施工安全及进度。为了能更准确地预测预防涌突水的发生，减少危害，从常规地质方法角度进行研究，从地下水补给、流通、存储和水压等几方面进行系统分析，解析涌突水的原因以及可能性；对几个隧道涌突水事件发生的原因进行探索，并结合理论分析和实践经验，提出一些勘察、预报时容易忽视的地方，以引起注意。

Water inflow/bursting is one of the common disasters when tunneling under complex geological conditions, which may jeopardize the construction safety and the construction schedule. The causes and possibility of water inflow/bursting are analyzed in terms of the feeding, flowing, storing and pressure of the ground water, so as to accurately predict the water inflow/bursting in tunneling. Case study is made on the water inflow/bursting of several tunnels. Some items that may be ignored in geological investigation and prediction are listed on basis of theoretical analysis and engineering practice, so as to attract more attention.