Construction Risk Prediction And Control Of Ultra-large-scale And Complex Structure Underground Railway Station

With the rapid development of economy of China and the increasing of urban population, the use of the underground space has been more common, and the size of the underground is growing larger. However, the accidents frequently occurring in the construction of underground works in recent years make people have to attach more attention on the construction safety. The risk in the construction process of the ultra-large-scale underground Railway station with complex structure is more difficult to predict, and difficult to control. Therefore the risk prediction and control of the construction of the ultra-large-scale underground Railway station with complex structure should be paid more attention to.The article describes the risk prediction and control of the construction of the ultra-large-scale underground Railway station with complex structure, and the details of the procedures and methods of the construction risk identification, risk estimation, risk assessment, risk control.The ultra-large-scale Railway station with complex structure built underground is rare in the world today. The article studies the construction risk prediction and control is based on the badaling underground railway station.According to the the Badaling surrounding geology, I Applied software abaqus to simulate the construction methods of the badaling underground railway station. Knew the positions where stress is concentrated through the calculation. Forecast the risk of the excavation process of the Badaling underground station.I investigated the geological and hydrological data surrounding Badaling underground station. Applied the inflow formula to predict the inflow in the construction process of badaling underground railway station, and then according to the inflow, take appropriate measures to protect the safety of the construction.Computed the stress to see if the rock burst would happen.based on the study on the construction risk of badaling underground railway station, provided the necessary reference to the construction risk of the ultra-large-scale underground Railway station with complex structure.