| 振冲碎石桩地基有限元分析的复合模型研究 |
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| 引用本文： | 傅少君,王曼.振冲碎石桩地基有限元分析的复合模型研究[J].岩土力学,2008,29(2):375-380. |
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| 作者姓名： | 傅少君 王曼 |
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| 作者单位： | 武汉大学 土木建筑工程学院，武汉 430072 |
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| 摘 要： | 从振冲碎石桩的变形、受力机制出发，提出相应的假设条件，利用弹性力学和Biot固结理论建立了可以考虑固结问题的振冲碎石桩复合的平面有限元分析弹性复合模型，并编制相应的有限元分析程序APOSE。通过算例考证了APOSE的可靠性和有效性，APOSE程序可以用于分析研究振冲碎石桩地基、砂井地基等类似复合地基沉降变形和固结问题。
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| 关 键 词： | 振冲碎石桩 有限元 复合模型 固结 |
| 文章编号： | 1000-7598-（2008）02-375-06 |
| 收稿时间： | 2007-01-10 |
| 修稿时间： | 2007年1月10日 |
Study on composite modelfor vibro-replacement stone column foundation by FEM |
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| FU Shao-jun,WANG Man.Study on composite modelfor vibro-replacement stone column foundation by FEM[J].Rock and Soil Mechanics,2008,29(2):375-380. |
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| Authors: | FU Shao-jun WANG Man |
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| Institution: | School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, China |
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| Abstract: | Based on studying the mechanism of deformation and bearing capacity of vibro-replacement stone column foundation, the assumptive conditions are presented. The composite two-dimensional numerical model of stone columns is estabilished; this model considers the couple of stress-strain with Biot consolidation and the reinforced efficiency, the finite element analysis program (analysis program of soil engineering) is developed according to this model. The reliability and validity of APOSE is verified by two simple examples. APOSE can be applied to analyze the consolidation and subsidence of vibro-replacement stone columns and sand well compound foundation, etc.. |
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| Keywords: | vibro-replacement stone column finite elements composite model consolidation |
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