Structural Calculation and Test Analysis of Multi-pivot Prestressed Anchor Pile

According to deflection deformation theory of cantilever beam,foundation beam lateral deformation elastic restraint theory and pile cable deformation coordination principle,this paper puts forward the design method of multi-pivot anchor pile for soil strata considering the influence factors of anchor pivot construction condition,and carries out site test and analytic study on pile-back and plate-back soil pressure,anchor cable stress and pile body displacement,which verifies that anchor cable stress on pile-back soil pressure is in trapezoidal distribution and that on plate-back soil pressure is in triangle distribution,and proves the reasonability and feasibility of construction with multi-pivot prestressed anchor pile considering working condition influence factors.