摘要
架空直立式码头桩基础具有数量多、密度大的特点,结构使用过程中桩基与周围土体的相互作用机理一直受到工程界的关注。按照复合材料力学的处理方法,基于自洽理论和应变相容原理,将桩—土相互作用体系进行等效连续化处理,建立了桩土复合材料力学模型。依次对一架空直立式码头桩基与土体相互作用体系进行了数值分析,并与"接触模型"计算方法及大尺度模型试验结果进行对比。研究表明,复合材料计算方法与"接触模型"计算方法及模型试验结果在趋势和数值上具有较好的一致性,并且采用复合材料模型能够减少计算单元划分数量,提高有限元计算方法的计算效率。
The pile foundation of overhead-erection container are numerous and dense.The interaction mechanism between piles and soil around during utilization process has been a main concern in engineering.Based on selfconsistent theory and concept of strain consistency,a mechanical model for soil-piles composite material is found in terms of the equivalent continuum established method.The system of over-head container pile foundation and soil are analyzed with finite element.Compared with the＂connection model＂method and large model experiment,it can be seen that the results calculation by the present method are commendably consistent with those obtained by＂connection model＂method and experiment.The equivalent composite model adopted could reduce the number of elements and develop the calculation efficiency of finite element method.
出处
《北京联合大学学报》
CAS
2010年第2期49-53,共5页
Journal of Beijing Union University
基金
云南省航务管理局科技项目(2008-kj-07)
重庆市高校优秀人才支持计划项目
关键词
群桩效应
架空直立式码头
复合材料
相互作用
数值分析
piles group effect
overhead-erection container
composite material
interaction
numerical analysis
