Research on Support and Stability of Deep Foundation Pit in Karst Area
In order to ensure the construction level of deep foundation pit engineering,this paper summarizes the characteristics of foundation pit excavation and common support methods in karst area.Taking a high-rise residential building in a city as the research object,the foundation pit support scheme and karst cave treatment scheme are formulated,and the calculation model is established by using finite element software.The stability of deep foundation pit is evaluated from the aspects of support pile displacement,uplift deformation of foundation pit bottom and surrounding surface settlement.The research results can provide theoretical guidance for the design and construction of similar deep foundation pit projects.
karst areadeep foundation pitsupport methodstabilitynumerical calculation
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