Research on Risk Assessment and Control Technology for Expressway Bridge Pile Foundation Construction in Karst Cave Area
In order to effectively control and reduce the construction risk of expressway bridge pile foundation in karst cave area and ensure the smooth progress of construction,this paper evaluates the construction risk of expressway bridge pile foundation in karst cave area based on the improved likelihood consequence exposure(LEC)method.Based on the specific construction cases,the potential problems in the construction process of expressway bridge pile foundation in karst cave area are systematically analyzed,and the classification of various construction hazards is clarified.At the same time,combined with the engineering,hydrogeological conditions and karst development characteristics of the study area,the treatment technology and construction risk control method of karst cave related working conditions are put forward.
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