| 圆形浅基础承载力计算新模型及验证 |
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| 引用本文： | 任志善,张慧乐,李从昀.圆形浅基础承载力计算新模型及验证[J].岩土工程技术,2009,23(4):167-171. |
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| 作者姓名： | 任志善 张慧乐 李从昀 |
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| 作者单位： | 1. 北京电力设计院,北京,100055
2. 中国京冶工程技术有限公司,北京,100088 |
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| 摘 要： | 通过假定地基发生整体剪切破坏，给出滑动破坏面，考虑地基土的塑性平衡区随着基础埋置深度的不同而扩展到最大可能的程度，并且计及基础两侧土的抗剪强度对承载力的影响，采用极限平衡法，理论上推导出了圆形浅基础承载力。结合工程实例．并利用有限元程序（ADINA）进行数值模拟，进一步验证了浅基础破坏模式的正确性，以及理论推导的可靠性。
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| 关 键 词： | 极限平衡 圆形浅基础 承载力 有限元 |
A New Bearing Capacity Calculation Model and Validation of Circular Shallow Foundation |
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| Ren Zhishan,Zhang Huile,Li Congyun.A New Bearing Capacity Calculation Model and Validation of Circular Shallow Foundation[J].Geotechnical Engineering Technique,2009,23(4):167-171. |
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| Authors: | Ren Zhishan Zhang Huile Li Congyun |
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| Institution: | Ren Zhishan Zhang Huile Li Congyun (1 Beijing Electric Power Design Institute, Beijing 100055 P. R. China China Jingye Engineering Corporation Limited, Beijing 100088, P. R. China) |
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| Abstract: | This article assumes that the overall foundation shear damage happened, the sliding surface damage is given, the greatest possible expansion extent of the soil plasticity balance area with the variety of foundation embedment is considered, and both sides of the foundation soil shear strength are taken into account. Circular shallow foundation bearing capacity is theoretically derived with Limit equilibrium method. Using practical engineering examples and numerical simulation with finite element program (ADINA), the correctness of shallow foundation damage model and theoretical derivation are further validated. |
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| Keywords: | limit equilibrium circular shallow foundation bearing capacity finite element |
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