| 带连系梁的桩承式加筋路堤三维数值模拟分析 |
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| 引用本文： | 马强,郑俊杰,张军,董友扣.带连系梁的桩承式加筋路堤三维数值模拟分析[J].华中科技大学学报(自然科学版),2011,39(10):99-102. |
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| 作者姓名： | 马强 郑俊杰 张军 董友扣 |
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| 作者单位： | 华中科技大学岩土与地下工程研究所,湖北武汉,430074 |
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| 基金项目： | 国家自然科学基金资助项目(50978112); 教育部留学回国人员科研启动基金资助项目(20091341); 山西省交通科技攻关项目; 华中科技大学研究生科技创新基金资助项目(HF-08-01-2001-240) |
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| 摘 要： | 针对传统桩承式加筋路堤应用中存在的问题,结合新型三向土工格栅高强度和刚度的特点,在桩顶设置连系梁并对格栅铺设工艺加以改进.通过数值模拟对改进前、后的桩承式加筋路堤的受力和位移进行对比分析.结果表明：相对于普通加筋,采用改进的桩承式加筋路堤模式可以减小路堤的不均匀沉降和侧向位移,提高格栅的利用效率,有效约束路基侧向位移,...
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| 关 键 词： | 桩承式加筋路堤 连系梁 三向土工格栅 数值模拟 沉降 内力 |
Three-dimensional numerical simulation of geosynthetic-reinforced and pile-supported embankment with coupling beams |
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| Ma Qiang Zheng Junjie Zhang Jun Dong Youkou.Three-dimensional numerical simulation of geosynthetic-reinforced and pile-supported embankment with coupling beams[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2011,39(10):99-102. |
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| Authors: | Ma Qiang Zheng Junjie Zhang Jun Dong Youkou |
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| Institution: | Ma Qiang Zheng Junjie Zhang Jun Dong Youkou(Institute of Geotechnical and Underground Engineering,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | There are some deficiencies in geosynthetic-reinforced and pile-supported(GRPS) embankment.Considering the characteristics of the triaxial geogrid,the geogrid spreading technique was improved and the coupling beam on the top of the piles was set.Numerical simulations were employed to compare the improved GRPS with the ordinary through analyzing the stresses and the displacement.The results show that the improved GRPS can significantly reduce the total settlements,differential settlements and lateral displac... |
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| Keywords: | geosynthetic-reinforced and pile-supported(GRPS) embankment coupling beam triaxial geogrid numerical simulation settlement internal force |
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