| 桩承式灰土路堤基底荷载效应分析 |
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| 引用本文： | 张浩,石名磊,张瑞坤.桩承式灰土路堤基底荷载效应分析[J].公路交通科技,2011,28(6):25-31. |
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| 作者姓名： | 张浩 石名磊 张瑞坤 |
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| 作者单位： | 东南大学,江苏,南京,210096 |
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| 摘 要： | 针对桩承式路堤结构的作用特点,基于Marston土压力理论,通过考虑填料粘聚力的柱面剪应力转移模型,对桩承灰土路堤基底荷载效应进行了研究;并结合Winkler地基模型提出了基底变形协调的荷载作用效应值迭代求解的方法.通过算例,对计算模型中剪应力修正系数β、填料粘聚力c、基底桩土刚度等因素进行了分析.结果表明:随着β、c...
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| 关 键 词： | 道路工程 土拱效应 应力折减比 灰土路基 疏桩 |
Analysis on Load Action Effect of Subgrade in Pile Supported Lime-soil Embankment |
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| ZHANG Hao,SHI Minglei,ZHANG Ruikun.Analysis on Load Action Effect of Subgrade in Pile Supported Lime-soil Embankment[J].Journal of Highway and Transportation Research and Development,2011,28(6):25-31. |
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| Authors: | ZHANG Hao SHI Minglei ZHANG Ruikun |
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| Institution: | ZHANG Hao,SHI Minglei,ZHANG Ruikun(Southeast University,Nanjing Jiangsu 210096,China) |
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| Abstract: | According to the characteristics of embankment supported by piles,based on Marston soil pressure theory,the load action effect of basement in pile supported lime-soil embankment was studied with cylindrical shear stress transfer model,considered the cohesion force of filling.With the deformation compatibility condition and the hypothesis of Winkler foundation model,an iteration algorithm for basement load was obtained.In addition,a calculation example was given to analyze the influence from correction coeff... |
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| Keywords: | road engineering soil arching effect stress reduction ratio lime soil roadbed sparse pile |
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