Discussion on the Causes and Treatment of Structural Leakage in Urban Rail Transit Tunnel
With the rapid development of national transportation industry,subway tunnel construction technology has become increasingly mature and subway tunnels have become more common.However,due to the construction conditions and the deterioration of material performance during operation,train vibrations,surrounding activities,climate conditions and other factors,urban subway tunnels cause leakage problems during operation,which great-ly reduces the safety and reliability of tunnel structure and affects the safe operation of subway,so it is very im-portant to analyze and control the cause of tunnel structure leakage.Tunnel leakage is a common defect of tunnel,which is directly manifested as structural crack,and the reason is relatively complicated.Therefore,this paper con-ducted in-depth analysis and research on the phenomenon of water leakage in the tunnel section of Beijing Metro Line 19 during operation,counted the characteristics of the diseases causing water leakage,took different treat-ment measures for different diseases,studied and summarized different common methods of water leakage disease treatment,hoping to provide reference for the prevention and treatment of water leakage in similar tunnel linings.
subway operationtunnelstructural crackswater leakage control