The Application of Pile Foundation Defect Reinforcement Technology in Karst Development Site
In order to ensure the quality of pile foundation in karst development site,this paper analyzes the conditions of karst development and the types of karst caves.Taking the bored pile of an urban residential building as the research object,it analyzes the causes of pile foundation defects such as drill tool sticking,drill tool burying,slurry leakage,mud inclusion,pile diameter change,pile bottom sediment thickness exceeding requirement,and puts forward the corresponding reinforcement technology.Subsequently,the effect of pile foundation reinforcement is tested by static load test.The research results can provide theoretical guidance for pile foundation construction in karst areas.
karst developmentpile foundationpile foundation defectreinforcement technologybearing capacity
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