基于正交试验的单桩复合地基沉降影响因素分析  

Analysis on Factors Affecting Settlement of Single-pile Composite Foundation Based on Orthogonal Experiment

作　　者：张亚杰[1,2] 洪宝宁[1,2] 于丽鹏 

机构地区：[1]河海大学岩土力学与堤坝工程教育部重点实验室,南京210098 [2]河海大学岩土工程科学研究所,南京210098 [3]山东省青州市高新技术研究所,山东青州262500

出　　处：《路基工程》2014年第2期1-5,共5页Subgrade Engineering

基　　金：国家自然科学基金项目(51079052);广东省交通厅科技项目(200903005);河海大学中央高校基本科研业务费专项资金(2012B03014)

摘　　要：随着高速公路的兴起,复合地基应用越来越普遍,且复合地基的沉降变形日益受到关注。采用FLAC3D软件,建立单桩复合地基模型,在分别分析沉降单一影响因素的基础上,进一步引入正交设计软件,分析多因素多水平组合下复合地基的沉降变形,并进行前后的对比分析,得出单一影响因素最佳水平取值的机械组合,并不能取得理想的降低复合地基沉降效果的结论。As development of highway, composite foundation is more and more popular so that its settlement deformation becomes a concern. With FLAC3D software, the model of single-pile composite foundation was established. Based on the respective analysis of each factor affecting the settlement thereof, with orthogonal design software introduced, the deformation resulting from the combination of various factors at multiple levels was studied, and then the comparison with the former studies was conducted. As a result, it was concluded that the mechanical combination of each factor at its optimal value level can not obtain ideal effect on reducing settlement of the composite foundation.

关 键 词：复合地基 沉降 数值模拟 影响因素 正交试验 

分 类 号：TU431[建筑科学—岩土工程]