| 桩土模型中土体边界选取的有限元分析 |
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| 引用本文： | 胡铖波,梅岭,梅国雄,宰金珉.桩土模型中土体边界选取的有限元分析[J].建筑科学,2009,25(9). |
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| 作者姓名： | 胡铖波 梅岭 梅国雄 宰金珉 |
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| 作者单位： | 南京工业大学土木工程学院,南京,210009 |
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| 摘 要： | 运用有限元软件对单桩受荷时桩土模型中土体边界的选取进行了分析.详细介绍了有限元的建模过程,通过计算土体不同边界范围所能提供的桩极限承载力,得出计算分析单桩受荷时桩土模型所需的合理土体边界.结果表明桩土模型中桩侧土体边界取12倍桩径,桩端土体深度边界取15倍桩径时,可充分利用土的承载能力并满足计算精度要求.相应P-S曲线的比较证明了本文方法的正确性和合理性.
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| 关 键 词： | 有限元 桩土模型 土体边界 极限承载力 |
Finite Element Method for Selecting the Soil Boundary in the Model of Pile-soil |
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| HU Cheng-bo,MEI Ling,MEI Guo-xiong,ZAI Jin-min.Finite Element Method for Selecting the Soil Boundary in the Model of Pile-soil[J].Building Science,2009,25(9). |
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| Authors: | HU Cheng-bo MEI Ling MEI Guo-xiong ZAI Jin-min |
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| Affiliation: | College of Civil Engineering;Nanjing University of Technology;Nanjing 210009;China |
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| Abstract: | This article analyzes the selection of the soil boundary in the model of pile-soil with finite element method,describes the modeling of the pile-soil in detail and presents the reasonable soil boundary of the pile-soil model used for the single pile loaded,on the basis of calculation of the ultimate bearing capacity of piles provided by various soil boundary ranges.The results show that pile shaft soil boundary takes 12 times diameter,while pile end soil boundary takes 15 times diameter,we can use full soil... |
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| Keywords: | finite element method model of pile-soil soil boundary ultimate bearing capacity |
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