摘要
继续发展考虑应力集中效应的未打穿散体材料桩复合地基固结解析理论,并分析此类地基的固结基本性状。研究表明,根据本文提出的数学模型,桩体渗透性、桩体刚度和打穿度对地基的固结速率有较大影响;沿用竖井固结理论进行计算得到的平均固结度较本文理论的计算结果偏小。
An analytical theory for consolidation of composite ground with partially penetrated granular columns considering the stress concentration effects is presented. Based on these solutions and relevant computations, the consolidation characteristics of such composite ground are investigated and discussed.It's shown that, based on the presented mathematical model,k\-w(the permeability coefficient of the granular column),E\-w(the compressibility module of the granular column) and penetration fraction have greater influence on the consolidation rate. The total average consolidation degree calculated by the existent theory is smaller than that calculated by the present theory presented in this paper.
出处
《公路交通科技》
CAS
CSCD
北大核心
2004年第6期12-16,共5页
Journal of Highway and Transportation Research and Development
关键词
散体材料桩
复合地基
固结
未打穿
应力集中效应
Granular column
Composite ground
Consolidation
Patially penetrated
Stress concentration effects
