| 散体材料桩复合地基桩土应力应变关系研究 |
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| 引用本文： | 孙林娜,龚晓南,张菁莉.散体材料桩复合地基桩土应力应变关系研究[J].科技通报,2007,23(1):97-101. |
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| 作者姓名： | 孙林娜 龚晓南 张菁莉 |
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| 作者单位： | 1. 浙江大学,岩土工程研究所,杭州,310027
2. 浙江科技学院,岩土工程研究所,杭州,310012 |
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| 摘 要： | 根据桩土变形连续及协调条件，采用土力学及弹性力学理论分析了散体材料桩复合地基在鼓胀变形情况下桩与桩间土的应力-应变关系，并推导出当桩周土体达到极限平衡状态时的单桩极限承载力及复合地基极限承载力的计算公式。经工程实例验证，计算值与实测值基本吻合。
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| 关 键 词： | 散体材料桩 复合地基 应力-应变 极限承载力 |
| 文章编号： | 1001-7119（2007）01-0097-05 |
| 收稿时间： | 2005-11-08 |
| 修稿时间： | 2005-11-08 |
Research on Stress-strain Relationship of Pile-soil for Composite Foundation of Discrete Material Piles |
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| SUN Lin-na,GONG Xiao-nan,ZHANG Jing-li.Research on Stress-strain Relationship of Pile-soil for Composite Foundation of Discrete Material Piles[J].Bulletin of Science and Technology,2007,23(1):97-101. |
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| Authors: | SUN Lin-na GONG Xiao-nan ZHANG Jing-li |
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| Institution: | 1. Research Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, China; 2. Research Institute of Geotechnical Engineering, Zhejiang University of Science and Technology, Hangzhou 310012, China |
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| Abstract: | Based on the principle of continuity and harmony of deformation, the stress-strain relationship of the pile and the soil of discrete material piles composite foundation under lateral expansion is analyzed by soil mechanics and elastic theory. Furthermore, the ultimate bearing capacity of the single pile and composite foundation are derived when the soil nearby pile reaches the statement of limiting equilibrium, According to an engineering example, the calculated results agree reasonably well with the field measurements, which prove the practicability of equations proposed in this paper. |
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| Keywords: | discrete material piles composite foundation stress-strain ultimate bearing capacity |
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