| 高速铁路CFG桩复合地基处理方案数值模拟 |
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| 引用本文： | 元翔,宫全美,王炳龙.高速铁路CFG桩复合地基处理方案数值模拟[J].华东交通大学学报,2008,25(1):32-36. |
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| 作者姓名： | 元翔 宫全美 王炳龙 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,200092 |
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| 摘 要： | 采用有限元分析软件对CFG桩复合地基特性进行了研究，分析了不同的复合地基处理方案，如水泥土、桩帽网、和桩板方案对沉降规律和桩土应力比的影响．研究表明：复合地基处理方案为水泥土方案时路基沉降量最大、桩土应力比最小，地基面有明显沉降盆；桩板方案时路基沉降量最小、桩土应力比最大、地基面沉降更加均匀．
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| 关 键 词： | 铁路路基 复合地基 CFG桩 有限元 高速铁路 |
| 文章编号： | 1005-0523(2008)01-0032-05 |
| 修稿时间： | 2007年10月29 |
Numerical Simulation of Composite Ground Treatment Methods with CFG Piles on High-speed Railway |
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| YUAN Xiang,GONG Quan-mei,WANG Bing-long.Numerical Simulation of Composite Ground Treatment Methods with CFG Piles on High-speed Railway[J].Journal of East China Jiaotong University,2008,25(1):32-36. |
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| Authors: | YUAN Xiang GONG Quan-mei WANG Bing-long |
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| Institution: | (Key Laboratory of Road and Traffic Engineering of the Ministry of Education Tongji University, Shanghai 200092, China) |
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| Abstract: | The characteristics of composite foundation with CFG piles are studied by finite element analyzing software,and various ground treatment methods are analyzed,such as cement-soil,pile-hat-net and pile-plank,to compare the differences of the rules of settlement and the ratio of the stress of pile and soil.It is indicated by study that the settlement of subgrade is the most but the ratio of the stress of pile and soil is the least and there will be a basin of settlement on the surface of subgrade when the subgrade is treated with cementsoil;while the settlement of subgrade is the least but the ratio of the stress of pile and soil is the most and the settlement on the surface of subgrade will be more regular when the subgrade is treated with pile-plank. |
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| Keywords: | railway subgrade composite ground CFG piles finite element high-speed railway |
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