软基上桩承加筋路基与桩基桥台的承载机理

Load bearing mechanism between geosynthetic reinforced pile-supported embankment and piled abutment constructed on soft soils

采用ABAQUS有限元软件建立桩承加筋路基和桩基桥台模型,系统研究桩基桥台-路基-地基的相互作用性状,包括桥台桩基水平位移、桥头路面沉降、桥台桩弯矩等的变化规律,分析深厚软土地基的超孔压固结,并提出若干施工建议。

A pile-supported geosynthetic reinforced embankment and bridge abutment model was constructed using the ABAQUS finite element program. The characters of interaction among the bridge abutment, embankment and foundation were systematically studied, including the change laws of the lateral displacement of the bridge abutment, the settlement of the embankment and the bending moment of abutment pile. The super-pore pressed consolidation of the deep soft foundation was analysed. Suggestions on the construction of the eosynthetic reinforced embankment and the piled abutmens were proposed.