【摘要】地下输水隧洞分有压隧洞和无压隧洞，当隧洞衬砌混凝土产生裂缝后，常拌有渗水现象，会严重破坏混凝土结构的安全，裂缝产生的原因、防治及处理的方法直接关系到隧洞的使用寿命。【关键词】衬砌；水工隧洞；混凝土；渗水；裂缝处理【Abstract】Underground water tunnel tunnel pressure points and non-pressure tunnel， when the cracks in the concrete tunnel lining， the often mixed with water leakage， may cause serious damage to the safety of concrete structures， cracks， causes， prevention and treatment methods is directly related the life of the tunnel.【Key words】Lining; Hydraulic tunnel; Concrete; Water; Crack tr
