| Abstract:The interlocking pile has been widely used in deep foundation pit engineering, and due to factors such as geological conditions, construction organization, and operational ability, accidents of retaining piles invasion often occur. This article uses a fiber model finite element calculation program to calculate the bending bearing capacity of theretaining piles before and after the intrusion treatment. At the same time, combined with the back analysis results of the deep horizontal displacement monitoring of the pile, it is demonstrated that the use of adhesive steel reinforcement method to treat the invasion retaining piles is feasible. Using the spatial effect of the foundation pit, the step-by-step pile jumping construction is used to cut and reinforce the invasion retaining piles, and the foundation pit is in a safe and stable state. Analysis of the monitoring results after reinforcement treatment and bending condition of pile body shows that the bending moment value borne by the section is less than the bending bearing capacity of the section.The reinforcement construction of this project has achieved good results, effectively solving the problem of foundation pit support pile invasion limit, which can provide reference for similar projects. |
