| 基于迈耶霍夫和汉纳冲剪理论计算地基极限承载力的研究 |
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| 引用本文： | 肖华平,闫澍旺,孙万禾.基于迈耶霍夫和汉纳冲剪理论计算地基极限承载力的研究[J].岩土力学,2006,27(Z1):875-880. |
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| 作者姓名： | 肖华平 闫澍旺 孙万禾 |
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| 作者单位： | 1. 天津大学 建筑工程学院, 天津 300072；2. 天津港湾工程研究所，天津 300222 |
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| 摘 要： | 对迈耶霍夫和汉纳公式计算成层土地基承载力的步骤细化，推导出计算承载力的一般计算模式；运用现场载荷试验结果对计算成层土地基承载力的迈耶霍夫和汉纳公式进行验证，同时对迈耶霍夫和汉纳公式进行适当的修正。计算结果表明，成层土的迈耶霍夫和汉纳计算公式计算步骤的关键在于确定破坏面的极限深度，极限深度的判断对其计算的结果有重要影响。根据大型荷载板现场试验的结果，当土层超过两层时的成层土地基的极限承载力按迈耶霍夫和汉纳理论公式进行计算，其计算结果与实测值基本吻合。
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| 关 键 词： | 成层土 极限承载力 计算步骤 载荷试验 |
| 收稿时间： | 2006-07-26 |
Study of ultimate bearing capacity calculation using
Meyerhof & Hanna theory |
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| XIAO Hua-ping,YAN Shu-wang,SUN Wan-he.Study of ultimate bearing capacity calculation using
Meyerhof & Hanna theory[J].Rock and Soil Mechanics,2006,27(Z1):875-880. |
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| Authors: | XIAO Hua-ping YAN Shu-wang SUN Wan-he |
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| Institution: | 1. Shcool of Civil Engineering, Tianjin University, Tianjin 300072, China; 2. Tianjin Port Engineering Institute, Tianjin 300222, China |
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| Abstract: | For the bearing capacity of layered foundations calculated by Meyerhof and Hanna formula, its calculation procedure is refined; and the bearing capacity common model is derivd. The bearing capacity of layered foundation calculated by Meyerhof and Hanna formula is validated by using using the results of in-situ load examination so as to modify the formula. (1) The key step of the formula is to determine the failure plane limit depth, which significantly influenced the result, (2) By the large-scale stress plane in-situ examination, as the layers of soil exceed double, the ultimate bearing capacity of layered foundation calculated by Meyerhof and Hanna formula compared well. |
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| Keywords: | layered soil ultimate bearing capacity load test |
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