| 桩周及下卧土层中超静孔压消散的数值模拟 |
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| 引用本文： | 姚建雄,高子坤. 桩周及下卧土层中超静孔压消散的数值模拟[J]. 平顶山学院学报, 2011, 26(5): 48-51,74 |
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| 作者姓名： | 姚建雄 高子坤 |
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| 作者单位： | 中南大学,湖南长沙,410083 |
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| 摘 要： | 通过分析单桩成桩后,桩周土体固结渗流的边界条件和初始条件,建立了饱和黏土中单桩桩周及下卧横观各向同性土体的空间轴对称固结问题的定解条件,应用数值理论建立相应定解问题的有限元程序,对桩周及下卧土层中压桩挤土造成的孔压消散的时空变化规律进行模拟研究.结果表明:下卧土层的渗透特性对桩周土体的孔压消散没有明显影响,研究结果对精确分析压桩挤土对桩基础承载力及周围环境影响的时空特点具有理论意义和现实意义.
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| 关 键 词： | 固结理论 孔压消散 数值模拟 时空变化 |
Numerical Simulation of Dissipation of Excess Hydrostatic Pressure in Saturated Soil around Sunk Pile Based on Consolidation Theory |
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| YAO Jian-xiong,,GAO Zi-kun. Numerical Simulation of Dissipation of Excess Hydrostatic Pressure in Saturated Soil around Sunk Pile Based on Consolidation Theory[J]. Journal of Pingdingshan University, 2011, 26(5): 48-51,74 |
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| Authors: | YAO Jian-xiong GAO Zi-kun |
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| Affiliation: | YAO Jian-xiong1,2,GAO Zi-kun3(1.Central South University,Changsha,Hunan 410083,China,2.Fujian University of Technology,Fuzhou,Fujian 350108,3.Putian University,Putian,Fujian 351100,China) |
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| Abstract: | The temporal and spatial variation of seepage is studied in saturated soil around sunk pile.Considering the initial distribution and boundary condition of excess pore water pressure caused by setting pile,the numerical solutions can be obtained and studied in a simulated way by using the method of establishing the FEM procedures.The result shows that dissipation of pore pressure is not much affected by the variation of permeability of subsoil and has theoretical and practical significance for more accurate ... |
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| Keywords: | consolidation theory dissipation of pore pressure numerical simulation temporal and spatial variation |
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