| 水泥土搅拌桩复合地基载荷试验数值分析 |
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| 引用本文： | 邓永锋,刘松玉,洪振舜.水泥土搅拌桩复合地基载荷试验数值分析[J].岩土力学,2004,25(Z2):310-314. |
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| 作者姓名： | 邓永锋 刘松玉 洪振舜 |
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| 作者单位： | 东南大学,交通学院,江苏,南京,210096 |
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| 摘 要： | 水泥土搅拌桩在高速公路的软基处理中得到了广泛应用,但是对水泥土搅拌桩地基深层桩土应力比和变形未能有深入的认识.笔者应用弹性层状体系和Mindlin附加应力联合求解的方法,对水泥土搅拌桩复合地基载荷试验进行数值分析计算,总结了水泥土搅拌桩复合地基深层桩土应力比的变化规律,讨论了水泥土搅拌桩复合地基深层桩土变形协调问题.
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| 关 键 词： | 水泥土搅拌桩 复合地基 弹性层状体系 Mindlin应力 桩土应力比 差异变形 |
| 文章编号： | 1000-7598-(2004)增-0310-05 |
| 修稿时间： | 2004年7月20日 |
Numerical analysis of DJMP composite foundation under loading test |
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| DENG Yong-feng,LIU Song-yu,HONG Zhen-shun.Numerical analysis of DJMP composite foundation under loading test[J].Rock and Soil Mechanics,2004,25(Z2):310-314. |
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| Authors: | DENG Yong-feng LIU Song-yu HONG Zhen-shun |
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| Abstract: | The dry jet mixing pile (DJMP)has been widely used for the soft ground improvement in expressway engineering, but the stress ratio of pile to clay and deformation of composite foundation are not well understood. In the paper, the layered elastic system and Mindlin stress are combined in analyzing the stress of the composite foundation under PLT. Then, the relationship between the stress ratio and depth is summarized; and the compatibility of deformations of DJMPcomposite foundation is also discussed. |
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| Keywords: | DJMP composite foundation layered elastic system Mindlin stress stress ratio of pile to clay different deformations |
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