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近些年,桩基框架结构堤防在沿海软土地基上开始推广应用,而堤后土方回填是影响该类型堤防的关键环节,但相应的研究很少。依托相关工程,采用Midas gts软件建立三维有限元模型,模拟在各施工阶段堤防的受力变形情况,并结合现场观测数据,探讨数值模拟结果的可靠性,对比分析堤后填土对堤防受力变形的影响,评价软土地基条件下桩基框架结构堤防的优越性。
In recent years, pile foundation frame embankment began to be popularized and applied on coastal soft soil foundation, and earthwork backfilling after embankment is the key link affecting this type of embankment, but there are few researches. Based on the related projects, the three-dimensional finite element model was established by using Midas gts software to simulate the deformation and deformation of embankments in each construction stage. The reliability of the numerical simulation results was discussed based on the field observation data. Deformation, the evaluation of the superiority of embankment of pile frame structure under the condition of soft soil foundation.