Finite element analysis software ABAQUS was used to establish a two-dimensional pile-net composite foundation model,and the deformation and stress characteristics of PHC pile-net composite foundation,pile-cap-net composite foundation,PHC sand pile composite foundation under embankment load were analyzed.The numerical calculation results show that the settlement of pile-cap-net composite foundation is the smallest,followed by PHC pile-net composite foundation,and the settlement of PHC sand pile composite foundation is the largest.The pile-cap-net composite foundation has the largest pile-soil stress ratio and load sharing ratio,and the most obvious soil arching effect.The calculation analysis data show that the pile-cap-net composite foundation can be used to strengthen the roadbed of highway and railway in complex and deep soft soil,and the reinforcement effect is better.
关键词
桩网复合地基/加固效果/荷载传递规律/变形/土拱效应
Key words
pile-net composite foundation/reinforcement effect/load transfer law/deformation/soil arching effect
维普
万方数据