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Mechanisms of Load Transfer in Geosynthetic-Reinforced Pile Supported Embankment over Soft Soil
Author(s): 
Pages: 74-79
Year: Issue:  4
Journal: JOURNAL OF THE CHINA RAILWAY SOCIETY

Keyword:  桩承加筋式路堤拉筋材料荷载传递数值分析;
Abstract: 具有深厚软弱下卧层的路堤可采用桩承加筋式复合地基,以提高地基的承载力、减小路堤总沉降和差异沉降,而且可以布成疏桩,提高桩土荷载分担比,降低工程成本,在国内外的应用越来越广泛.本文采用拉格朗日描述位移的大变形有限元分析方法,研究桩承加筋式路堤的荷载通过土拱效应和拉筋材料传递到桩身的机理和变化规律,及其受路堤填筑高度、桩身刚度和桩间距、路堤填土的工程性质、拉筋材料抗拉刚度和铺设位置的影响性状.通过数值分析,得到一些有助于桩承加筋式路堤设计的结论.
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