关键词: 盾构隧道;渗漏水;盾构管片;管片接缝;

Abstract: The prevention and control of water leakage disease is one of the crucial tasks in the operation and maintenance of shield tunnels，which has attracted increasing attention from the tunnel field.Based on investigation and analysis，the characteristics and causes of the water leakage diseases in shield tunnels were investigated.The primary waterproof measures of shield tunnels were summarized.In addition，the common methods for the treatment of water leakage diseases of shield tunnels were studied.The results showed that the water seepage was the main leakage type of shield tunnels，accounting for approximately 50%～80%.In terms of the location of the leakage，the segment joint leakage was the majority，accounting for approximately 80%～90%.The cause of the leakage could be divided into two stages：the construction period and the operation period.The most common waterproof method for shield segment joint is elastic rubber gasket combined with water-expansion sealing，which can improve the waterproof effect under high water pressure conditions effectively.The conclusions could provide a reference for the prevention of water leakage diseases of shield tunnels.

Key words: shield tunnel；leakage water；shield segment；joint of segment