Abstract:With the rapid advancement of urban construction, the number of ultra large and ultra deep underground projects continues to grow, and their anti floating problems are becoming increasingly prominent. The article relies on an engineering disposal example of an unqualified anti pull bearing capacity in a certain anti pull pile acceptance test, systematically analyzes the influencing factors of anti pull bearing capacity from the construction dimension, introduces the reinforcement and strengthening technology path of unqualified anti pull piles, and puts forward targeted conclusions and suggestions, providing engineering reference for avoiding the risk of substandard anti pull bearing capacity in anti pull pile construction.