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| 市政道路碎石换填软基工作性状数值模拟 | |
| 引用本文： | 薛国强,方磊,刘萌成.市政道路碎石换填软基工作性状数值模拟[J].公路,2011(11):25-30. |
| 作者姓名： | 薛国强 方磊 刘萌成 |
| 作者单位： | 1. 河海大学岩土工程研究所 南京市210098;常熟市建设局 常熟市215500 2. 东南大学交通学院 南京市210096 3. 河海大学岩土工程研究所 南京市210098 |
| 基金项目： | 常熟市科技计划项目资助 |
| 摘 要： | 为了揭示碎石换填软土地基工作性状和力学机理,运用ABAQUS有限元法及其模拟技术,研究了城市道路碎石换填厚度和压实度对地基承载力和固结变形影响规律.分析结果表明:增加碎石换填厚度(开挖深度)与提高碎石垫层压实度可等效增加地基承载力或减小地表总沉降.研究结论建议:在承载力或沉降容许范围内,实体工程可采取提高碎石垫层压实度... |
| 关 键 词： | 道路工程 软土地基 碎石垫层 有限元法 承载力 固结变形 |
Numerical Simulation on Performance of Soft-Soil Ground Replaced by Crushed Gravel in Municipal Road |
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| XUE Guo-qiang,FANG Lei,LIU Meng-cheng.Numerical Simulation on Performance of Soft-Soil Ground Replaced by Crushed Gravel in Municipal Road[J].Highway,2011(11):25-30. | |
| Authors: | XUE Guo-qiang FANG Lei LIU Meng-cheng |
| Institution: | XUE Guo-qiang1,2,FANG Lei3,LIU Meng-cheng1(1.Research Institute of Geotechnical Engineering,Hohai University,Nanjing 210098,China,2.Construction Bureau of Changshu City,Changshu 215500,3.College of Transportation Engineering,Southeast University,Nanjing 210096,China) |
| Abstract: | In order to get knowledge of the mechanism and performance of soft-soil improvement by means of gravel cushion replacement,the influences of compaction and depth of gravel cushion on the bea-ring capacity and consolidation deformation of the soft-soil ground in the municipal pavement are investigated by ABAQUS finite element techniques.It is shown that the bearing capacity increases or the total settlement decreases for the soft soil ground as the depth or compaction degree of gravel cushion is increasing,a... |
| Keywords: | road engineering soft-soil ground gravel cushion finite element method bearing capacity consolidation deformation |
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