隧道涌突水的原因和预测预报方法

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。

Causes for Water Inflow/Bursting in Tunneling and Its Prediction Methods

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.