| 混凝土芯水泥土搅拌桩的有限元研究 |
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| 引用本文： | 董平,秦然,陈征宙.混凝土芯水泥土搅拌桩的有限元研究[J].岩土力学,2003,24(3):344-348. |
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| 作者姓名： | 董平 秦然 陈征宙 |
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| 作者单位： | 1. 中国科学院广州地球化学研究所,广东,广州,510640;南京大学,地球科学系,江苏,南京,210093
2. 南京大学,地球科学系,江苏,南京,210093 |
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| 基金项目： | 2000年度江苏省建设系统科技计划指导性项目(编号:JS200003-Z) |
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| 摘 要： | 混凝土芯水泥土搅拌桩是适用于软土地基处理的一种新型复合桩，具有施工方便、造价低廉、单桩承载力高等优点。在静载试验的基础上，采用弹塑性有限元方法研究了该桩在竖向荷载下的力学性状，包括桩土和桩内外芯应力比，荷载的传递，桩侧塑性区分布以及沉降特性等。
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| 关 键 词： | 混凝土芯水泥土搅拌桩 复合桩 有限元分析 |
| 文章编号： | 1000-7598-(2003)03-0344-05 |
| 收稿时间： | 2002-01-28 |
| 修稿时间： | 2002年1月28日 |
FEM study of concrete-cored DCM pile |
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| DONG Ping,QIN Ran,CHEN Zheng-zhou,.FEM study of concrete-cored DCM pile[J].Rock and Soil Mechanics,2003,24(3):344-348. |
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| Authors: | DONG Ping QIN Ran CHEN Zheng-zhou |
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| Institution: | Institute of Guangzhou Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China: Department of Earth Sciences, Nanjing University, Nanjing 210093, China |
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| Abstract: | Concrete-cored deep cement mixing(DCM) pile is a new kind of composite pile used in soft ground engineering; it has many advantages such as simple in construction, little environmental disturbance, high bearing capacity, low settlement and less project costs. Based on the results from static loading test, the elastoplastic finite element method is used to analyze its mechanism under axial load, including pile-soil stress ratio (PSSR), load transfer, load distribution between pile-core and pile-socket, plastic area in soils and pile head settlement characteristics, etc.. |
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| Keywords: | concrete-cored deep cement mixing(DCM)pile composite pile FEM |
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