Analysis and Prevention Measures of Water Gushing in Dabashan Tunnel
Water surge accident in mountain tunnel construction is a common and unavoidable disaster in underground engineering.Through the silver hundred high-speed Dabashan Tunnel after the surge of water in the main hole and sloping shaft soaked section of the lining appearance,concrete strength and structural deformation of the research and testing,and combined with the analysis of the water quality to get,the con-crete structure produces a large number of cracks,flooding alkali,spalling,sprayed concrete strength de-cline,the main reason for the increased structural deformation of the groundwater rich in sulfate ions and the surge of water for a long time soaked in the concrete structure caused by the filling damage.Engineering measures such as optimisation of concrete mix ratio,comprehensive treatment of prevention,drainage,in-terception and grouting reinforcement are proposed to provide experience for the prevention and control of gushing water disaster.
万方数据
维普
