| 考虑土工格栅蠕变的加筋路堤变形分析 |
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| 引用本文： | 李冬雪,邓卫东,葛娟. 考虑土工格栅蠕变的加筋路堤变形分析[J]. 长安大学学报(自然科学版), 2011, 0(5) |
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| 作者姓名： | 李冬雪 邓卫东 葛娟 |
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| 作者单位： | 同济大学交通运输工程学院;重庆市交通科学研究设计院;天津市市政工程设计研究院; |
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| 基金项目： | 交通运输部专题研究项目(JTG-C-3008-03) |
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| 摘 要： | 为了明确土工加筋材料蠕变对结构物变形的影响规律,基于有限差分数值分析方法,对不同工况条件下由土工格栅蠕变所造成的路堤加筋结构的变形进行分析。从加筋材料蠕变对路基顶面沉降、路基侧向位移以及土工格栅应变的影响等3个方面进行对比分析。结果表明:在不同工况条件下,土工格栅蠕变对加筋路堤结构物变形的影响显著;路基顶面沉降量、路基侧向位移和加筋材料蠕变应变与路基高度呈正比例关系,与边坡坡率、筋材弹性模量呈反比例关系。
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| 关 键 词： | 道路工程 土工格栅 蠕变特性 加筋路堤 变形 蠕变 |
Deformation analysis on reinforced embankment taking into account of creep of geogrid |
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| LI Dong-xue,DENG Wei-dong,GE Juan. Deformation analysis on reinforced embankment taking into account of creep of geogrid[J]. JOurnal of Chang’an University:Natural Science Edition, 2011, 0(5) |
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| Authors: | LI Dong-xue DENG Wei-dong GE Juan |
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| Affiliation: | LI Dong-xue1,DENG Wei-dong2,GE Juan2(1.School of Traffic and Transportation Engineering,Tongji University,Shanghai 201804,China,2.Chongqing City Communications Research and Design Institute Co Ltd,Chongqing 400067,3.Tianjin City Municipal Engineering Design and Research Institute,Tianjin 300051,China) |
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| Abstract: | In order to clear the reinforced structures' deformation law caused by creep of geosynthetics,the reinforced embankments under different working conditions were analyzed with finite difference method.The deformation of reinforced embankment caused by the creep of geogrid was presented.Three aspects,such as the settlement distribution on the top of the embankment,horizontal displacement of the embankment caused by the creep of geogrid,and geogrid strain were analyzed.The results show that the settlement dist... |
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| Keywords: | road engineering geogrid creep property reinforced embankment deformation creep |
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