| 考虑桩间土支撑的桩承式加筋路堤理论分析 |
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| 引用本文： | 马强,郑俊杰,张军.考虑桩间土支撑的桩承式加筋路堤理论分析[J].华中科技大学学报(自然科学版),2011(3):30-33. |
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| 作者姓名： | 马强 郑俊杰 张军 |
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| 作者单位： | 华中科技大学土木工程与力学学院; |
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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 |
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| 摘 要： | 在对路堤荷载作用下的格栅-桩-桩间土荷载传递机理分析的基础上,建立了桩承式加筋路堤力学计算模型.采用极限平衡理论,推导了桩承式加筋路堤格栅上表面荷载计算公式.考虑格栅下部桩间土的支撑作用,对格栅受力与变形进行分析,推导了格栅在填土荷载作用下的挠度计算公式,从而可确定桩土荷载分担比.将该方法计算结果与已有测试结果进行了对比,表明该方法的计算结果与测试结果相差不超过6%.
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| 关 键 词： | 桩承式加筋路堤 桩间土 土工格栅 荷载分担比 理论分析 |
Theoretical analysis of GRPS embankment with the consideration of the supporting effect of soil between piles |
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| Ma Qiang Zheng Junjie Zhang Jun.Theoretical analysis of GRPS embankment with the consideration of the supporting effect of soil between piles[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2011(3):30-33. |
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| Authors: | Ma Qiang Zheng Junjie Zhang Jun |
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| Affiliation: | Ma Qiang Zheng Junjie Zhang Jun(College of Civil Engineering and Mechanics,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | Based on the geogrid pile and soil between piles collaborative working mechanism,a mechanical model of a goesynthetic-reinforced and pile-supported(GRPS) embankment was established.Limit equilibrium theory was employed to derive the expression of the earth pressure acting on geogrid.Considering the supporting effect of soil between piles under the geogrid,the stress and deformation of goegrid were analyzed to obtain the deflection calculation formula of geogrid under load of filling,and the pile efficacy co... |
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| Keywords: | goesynthetic-reinforced and pile-supported embankment soil between piles goegrid load sharing ratio theoretical analysis |
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