| 基础宽度对地基承载力影响的数值分析 |
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| 引用本文： | 杨光华,王恩麒.基础宽度对地基承载力影响的数值分析[J].岩土力学,2013,34(Z2):383-392. |
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| 作者姓名： | 杨光华 王恩麒 |
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| 作者单位： | 1. 广东省水利水电科学研究院，广州 510610；2. 广东省岩土工程技术研究中心，广州 510610；3. 华南理工大学 土木与交通学院，广州 510641 |
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| 基金项目： | 国家自然科学基金(No.51378131)；广东省水利科技创新项目(水闸软土地基处理设计导则) |
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| 摘 要： | 利用数值方法对传统的地基极限承载力的计算公式进行了验证，结果表明传统的理论公式中基础宽度对极限承载力的贡献是正确的。通过数值计算结果，针对目前地基规范中地基承载力特征值限定基础宽度的贡献，研究了地基承载力的合理确定方法，认为地基的承载力应根据实际基础的沉降和地基承载力的安全系数来确定更科学合理。基础宽度对地基承载力的影响已在沉降和承载力安全系数上得到反映，从而计算时不必限定基础宽度，由此可以获得更合理的地基承载力值。
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| 关 键 词： | 基础宽度 地基极限承载力 太沙基承载力公式 数值分析 |
| 收稿时间： | 2013-05-14 |
Effect of foundation width on bearing capacity of soil based on numerical analysis |
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| YANG Guang-hua,WANG En-qi.Effect of foundation width on bearing capacity of soil based on numerical analysis[J].Rock and Soil Mechanics,2013,34(Z2):383-392. |
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| Authors: | YANG Guang-hua WANG En-qi |
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| Institution: | 1. Guangdong Research Institute of Water Resources and Hydropower, Guangzhou 510610, China; 2. The Geotechnical Engineering Technology Center of Guangdong Province, Guangzhou 510610, China; 3. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China |
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| Abstract: | The traditional ultimate bearing capacity formula is verified through numerical analysis in this essay. It is shown that the contribution of base width to ultimate bearing capacity in traditional formula is correct. Through the numerical analysis, aiming at the contribution of base width limitation to foundation bearing capacity in code method, we studied a reasonable method for ascertain the bearing capacity, and we believe that determining the bearing capacity of soil with settlement and safety factor of the real foundation is more reasonable. The reflection of the bearing capacity of soil from base width has already effect the settlement and safety factor, therefore we can receive the bearing capacity of soil more reasonable with no necessary to limit the base width. |
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| Keywords: | foundation width bearing capacity of soil Terzaghi's formulas of bearing capacity numerical analysis |
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