| 复合桩基承台下土的极限承载力提高值理论解 |
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| 引用本文： | 宰金珉,杨嵘昌. 复合桩基承台下土的极限承载力提高值理论解[J]. 岩土工程学报, 1997, 19(4): 39-48 |
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| 作者姓名： | 宰金珉 杨嵘昌 |
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| 作者单位： | 南京建筑工程学院岩土工程研究所； |
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| 基金项目： | 江苏省应用基础研究基金 |
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| 摘 要： | 基于条形和圆形基础下土的极限承载力研究，结合滑动土体绕桩时极限阻滑力的理论解答，导出了复合桩基承台下土的极限承载力由于桩的遮帘作用而获得提高值的理论解，并给出相应的计算图表。算例和实例分析表明了理论解的合理性。此外，还简要讨论了理论解的适用条件
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| 关 键 词： | 复合桩基 桩土体系整体极限承载力 土体绕桩滑动阻力 极限平衡 |
Analytic Solutions to Increment of Ultimate Bearing Capacity of Soils Under Caps of Composite Pile Foundations |
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| Zai Jinmin,Yang Rongchang. Analytic Solutions to Increment of Ultimate Bearing Capacity of Soils Under Caps of Composite Pile Foundations[J]. Chinese Journal of Geotechnical Engineering, 1997, 19(4): 39-48 |
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| Authors: | Zai Jinmin Yang Rongchang |
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| Affiliation: | Geotechnical Engineering Institute Nanjing Architectural and Civil Engineering Institute Nanjing 210009 |
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| Abstract: | Based on the ultimate bearing capacity of soils under strip and circular foundations and the theoretical solution for the ultimate resistance to the soil sliding around a pile, the theoretical formula of the ultimate bearing capacity increment of soils strengthened by piles under the strip and circular caps of compsite pile foundations are deduced, and the relevant calculating charts are also given. The reasonableness of the formula is shown in some examples and cases. The applicable conditions of the formula is discussed briefly. |
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| Keywords: | composite pile foundation ultimate bearing capacity of the whole soil pile system resistgce to sile sliding around a pile ultimate equilibrium. |
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