Research on Emergency Plugging Methods for Leakage in Muddy Water Balance Top Pipe Tunnels Crossing Lakes
In the construction engineering crossing rivers and lakes,under the action of high water head pressure,the special weak stratum may be invaded by lake water into the gap between the top pipe tunnel pipeline and the surrounding rock,causing the lake water to flow backward into the initial open caisson structure of the top pipe tunnel,which seriously affects the engineering construction progress and people's property safety.Therefore,based on the actual engineering,this paper analyzes the causes of leakage diseases by means of engineering geological investigation and fluid mechanics numerical simulation,studies the backflow process of leakage water,and puts forward effective emergency plugging methods.
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