摘要
针对广州龙穴地区某软基处理工程,应用三维有限元计算方法,建立了一个本场地搅拌桩复合地基的数值模型。通过一系列针对现场试验的模拟,将计算结果与实测资料相比较,证明了模型能够较为精确地反映复合地基变形特性。最后,运用所建模型实现了对所研究场地在大面积上覆荷载下沉降变形的预测,从而检验拟定搅拌桩地基加固方案是否能够满足设计标准,为确定施工方案提供了参考。
A 3 - D Finite Element Model of cement mixing pile composite foundation is built for a soft foundation in Longxue, Guangzhou. It＇ s used to simulate a series of field tests on cement mixing pile composite foundation. The calculation results are compared with measured data. It is shown that the model is convenient and accurate with low computing cost for engineering application. At last, the model is used to simulate cement mixing pile composite foun- dation under larger area loading for predicting the settlement of site to verify the consolidation effect of mixing pile foundation and serves as reference for construction program.
出处
《地下空间与工程学报》
CSCD
北大核心
2009年第A02期1716-1721,共6页
Chinese Journal of Underground Space and Engineering
基金
中国船舶工业集团公司科研项目(编号:船工科[2006]1129号)
关键词
大面积堆载
水泥土搅拌桩复合地基
三维有限元
沉降预测
large area loading
cement mixing pile composite foundation
three - dimensional finite element
settlement prediction
