Cause analysis and prevention of water seepage in operational tunnel lining based on FTA
Chen Bohu · Journal of Safety Science and Technology · 2014
Water seepage of tunnel lining has been the key factor which impacts on the structural strength and stability of operational tunnel. To efficiently prevent the occurrence of water seepage of operational tunnel lining in the daily management and maintenance process of operational tunnel,from the perspective of tunnel operation management and maintenance,eleven basis reasons and eight theory prevention programs were concluded on water seepage of operational tunnel lining via systematic and comprehensive analysis,based on fault tree analysis method. Through a comprehensive comparative analysis,two feasible options on preventing water seepage of operational tunnel lining were proposed,namely effective relief and timely detection fix cracks,and some specific measures of each feasible prevention program were put forward. According to the situation that the problem of tunnel lining cracks can not be solved essentially,it showed that the strengthening of research and application on detection and warning technology is an essential way to achieve effective prevention of water seepage in operational tunnel lining.