| 散体材料桩复合地基承载力计算 |
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| 引用本文： | 张玲,赵明华. 散体材料桩复合地基承载力计算[J]. 湖南大学学报(自然科学版), 2007, 34(6): 10-14 |
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| 作者姓名： | 张玲 赵明华 |
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| 作者单位： | 湖南大学,岩土工程研究所,湖南,长沙,410082;湖南大学,岩土工程研究所,湖南,长沙,410082 |
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| 基金项目： | 国家863计划资助项目(2006AA11Z104)，国家自然科学基金资助项目(50378036) |
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| 摘 要： | 在探讨散体材料桩承载机理的基础上,针对其受力和变形特性,考虑散体材料桩侧向变形、不同布桩方式及时间效应等对复合地基承载能力的影响,导出了基于面积比的散体材料桩复合地基承载力计算公式.通过一工程实例验证了本文方法的可行性,并对该复合地基的承载力进行了时效分析,结果表明,在进行散体材料桩复合地基的承载力计算时考虑时效是很有必要的.
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| 关 键 词： | 散体材料桩 复合地基 承载力 侧向鼓胀 时效 |
| 文章编号： | 1000-2472（2007）06-0010-05 |
| 修稿时间： | 2006-11-21 |
Study on Bearing Capacity Calculation Method of Discrete Material Pile Composite Foundation |
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| ZHANG Ling,ZHA Ming-hua. Study on Bearing Capacity Calculation Method of Discrete Material Pile Composite Foundation[J]. Journal of Hunan University(Naturnal Science), 2007, 34(6): 10-14 |
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| Authors: | ZHANG Ling ZHA Ming-hua |
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| Affiliation: | Geotechnical Engineering Institute, Hunan Univ, Changsha,Hunan 410082,China |
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| Abstract: | The bearing capacity of discrete material pile composite foundation was discussed.On the basis of the Area-ratio Formula,a bearing capacity calculation method,which took into account the lateral deformation of discrete material pile under the vertical load,the influence of pile's arrangement and aging effect,was developed.In order to validate the proposed method,a case history was illustrated.The calculation results of the case history show that the calculated value is much closed to the observed value.The result also indicates that it's quite necessary to take into account the aging effect when calculating the bearing capacity of the composite foundation. |
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| Keywords: | discrete material pile composite foundation bearing capacity lateral deformation aging effect |
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