| Working mechanism of two-direction reinforced composite foundation |
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| 引用本文： | 张玲 赵明华 贺炜. Working mechanism of two-direction reinforced composite foundation[J]. 中南工业大学学报(英文版), 2007, 14(4): 589-594. DOI: 10.1007/s11771-007-0113-1 |
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| 作者姓名： | 张玲 赵明华 贺炜 |
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| 作者单位： | Institute of Geotechnical Engineering Hunan University，Institute of Geotechnical Engineering Hunan University，Institute of Geotechnical Engineering Hunan University，Changsha 410082 China，Changsha 410082 China，Changsha 410082 China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | Based on the discussion about working mechanism of horizontal reinforcement and that of vertical reinforcement,respectively,the working mechanism of two-direction reinforced composite foundation was studied.The enhancing effect of horizontal reinforcement on vertical reinforced composite foundation was analyzed.A simplified calculation method for such two-direction reinforced working system was presented.A model experiment was carried out to validate the proposed method.In the experiment,geocell reinforcement worked as the horizontal reinforcement,while gravel pile composite foundation worked as the vertical reinforcement.The results show that the calculated curve is close to the measured one.The installation of geosynthetic reinforcement can increase the bearing capacity of composite foundation by nearly 68% at normal foundation settlement,which suggests that the enhancing effect by geosynthetic reinforcement should be taken into account in current design/analysis methods.
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| 关 键 词： | 复合地基 轴承 容量 力量增强 |
| 收稿时间： | 2006-11-18 |
| 修稿时间： | 2006-11-182007-03-05 |
Working mechanism of two-direction reinforced composite foundation |
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| Zhang Ling , Zhao Ming-hua and He Wei. Working mechanism of two-direction reinforced composite foundation[J]. Journal of Central South University of Technology, 2007, 14(4): 589-594. DOI: 10.1007/s11771-007-0113-1 |
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| Authors: | Zhang Ling Zhao Ming-hua He Wei |
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| Affiliation: | Institute of Geotechnical Engineering, Hunan University, Changsha 410082, China |
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| Abstract: | Based on the discussion about working mechanism of horizontal reinforcement and that of vertical reinforcement,respectively,the working mechanism of two-direction reinforced composite foundation was studied.The enhancing effect of horizontal reinforcement on vertical reinforced composite foundation was analyzed.A simplified calculation method for such two-direction reinforced working system was presented.A model experiment was carried out to validate the proposed method.In the experiment,geocell reinforcement worked as the horizontal reinforcement,while gravel pile composite foundation worked as the vertical reinforcement.The results show that the calculated curve is close to the measured one.The installation of geosynthetic reinforcement can increase the bearing capacity of composite foundation by nearly 68% at normal foundation settlement,which suggests that the enhancing effect by geosynthetic reinforcement should be taken into account in current design/analysis methods. |
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| Keywords: | composite foundation two-direction reinforcement working mechanism bearing capacity |
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