为了解软基上卸荷式桥台-台后桩承加筋路堤中基桩的受力变形性状,采用ABAQUS有限元软件,模拟分析软基上卸荷式桥台+台后桩承式加筋路堤、普通桥台+台后桩承式加筋路堤以及卸荷式桥台+台后普通路基3种结构在填土后桥台桩基的水平位移变化,桥台桩基桩身轴力和弯矩的改变等。结果表明:台后设置桩承加筋路堤可使桥台桩基的减小近一半水平位移;设置卸荷板后主要对桥台后排桩桩身弯矩产生影响,弯矩反弯点出现的更早;两种桥台对桥台桩基水平位移值大小影响相当。 In order to understand the stress-deforming behavior of the foundation pile in unloading type abutment-backstored pile-reinforced embankment on soft foundation, the ABAQUS finite element software is used to simulate the unloading type abutment + Reinforced embankment, ordinary abutment + back-piled reinforced embankment and unloading abutment + ordinary subgrade three kinds of structures in the post-fill abutment pile foundation horizontal displacement change, abutment pile foundation pile axial force And bending moment changes. The results show that the pile foundation with reinforced embankment can make the reduction of pile abutments nearly halved horizontally after the pile is set up at the back of the platform. After the unloading plate is set, the bending moment of pile behind the abutment is affected, Of the earlier; two kinds of abutment on the abutment pile horizontal displacement value of considerable impact.