| 基于微结构指标主成分分析的沉桩挤土效应研究 |
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| 引用本文： | 张建新,赵建军,牛磊.基于微结构指标主成分分析的沉桩挤土效应研究[J].工程地质学报(英文版),2011,19(2):231-237. |
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| 作者姓名： | 张建新 赵建军 牛磊 |
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| 作者单位： | 1.天津城市建设学院土木工程系 天津 300384; |
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| 基金项目： | 国家自然科学基金(40972170); 天津市自然科学基金(09JCYBJC07800) |
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| 摘 要： | 前期研究已认识到,土的宏观力学性质及其表现从本质上应取决于土的微观结构.在结构性较强的软土中沉桩,桩周土体内部结构会发生显著变化,土体的强度与变形性质是这种内在变化的宏观表现,研究土体微观结构与宏观力学行为变化之间的关系,对认知土体的力学性质,从微观出发去认识沉桩挤土效应的机理,指导工程实践具有重要地理论和现实意义.本...
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| 关 键 词： | 微结构 主成分分析 沉桩 挤土效应 |
| 收稿时间： | 2010-05-20 |
ANALYSIS OF SOIL MICROSTRUCTURE COMPONENTS FOR SQUEEZING EFFECT BY PILE-DRIVING |
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| ZHANG Jianxin ZHAO Jianjun NIU Lei.ANALYSIS OF SOIL MICROSTRUCTURE COMPONENTS FOR SQUEEZING EFFECT BY PILE-DRIVING[J].Journal of Engineering Geology,2011,19(2):231-237. |
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| Authors: | ZHANG Jianxin ZHAO Jianjun NIU Lei |
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| Institution: | 1.Department of Civil Engineering,Tianjin Institute of Urban Construction,Tianjin 300384;2.Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment,Tianjin 300384 |
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| Abstract: | Past studies have shown that the macroscopic mechanical properties and performance of soil depend on its microstructure essentially.Driving pile into a soft soil would cause a significant change in the internal structure of the soft soil surrounding the pile.The strength and deformation characters are the macroscopic expression of this change.The relationship between soil microstructure and its change of macroscopic mechanical behavior is of great theoretical and practical significance.It can not only revea... |
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| Keywords: | Microstucture Representative component analysis Pile-driving Squeezing effect Soft soil |
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