路堤偏载对桥梁桩基的影响分析

运用Plaxis 3D Foundation有限元软件，分析了路堤偏载作用下，某软土地区城际铁路线桥梁桩基的受力变形。结果表明:桩基设计偏于不安全，建议软土路基处理措施穿透软土层，增设斜桩、增加横向桩排数、设置群桩基础保护帷幕桩墙及高压旋喷桩维护墙等结构，并加强施工和运营阶段桥梁和路堤结构的变形沉降监测。

Analysis on the Effect of Bridge Pile Foundation under Embankment Partial Load

With the application of finite element software Plaxis 3D Foundation, the force and deformation of bridge pile foundation of proposed inter-city railway line in certain soft soil area was analyzed under partial load of embankment. The result showed that:the pile foundation was designed somewhat unsafe, it is suggested that the treatment of the soft soil subgrade must get through the soft soil layer, and the inclined piles, more rows of horizontal piles, set pile group foundation to protect the curtain piling wall and high-pressure jet grouting pile wall.Enhance the deformation and settlement monitoring of the bridge and embankment structure during construction and operation.