Study on Disturbance of Adjacent Pile Caused by Precast Pile Sinking in Soft Soil Foundation
As extruding pile,precast pile will produce serious extruding effect in the process of pile sinking.The extrusion of adjacent piles causes pile body lifting,pile breaking and pile position deviation.Based on this,the disturbance of adjacent pile by precast pile sinking on soft soil foundation is studied.The numerical simulation method is used to simulate the process of sinking pile after sinking.The deformation and bending moment of adjacent piles are obtained in the process of pile sinking,and the influence of pile spacing and pile diameter on the deform-ation and bending moment of adjacent piles is analyzed.The results show that:when the pile depth is about 6m,the bending moment of the ad-jacent pile reaches the maximum value;when the pile depth of the post-sunk pile is the length of the adjacent pile,the deformation of the ad-jacent pile reaches the maximum value.With the increase of pile spacing,the deformation and bending moment of adjacent piles decrease grad-ually,and with the increase of pile diameter,the deformation and bending moment of adjacent piles increase gradually.