| 循环荷载作用下黏弹性地基一维固结性状研究 |
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| 引用本文： | 王少媚,夏森炜,蒋军.循环荷载作用下黏弹性地基一维固结性状研究[J].岩土力学,2008,29(2):470-474. |
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| 作者姓名： | 王少媚 夏森炜 蒋军 |
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| 作者单位： | 1. 杭州市房屋安全鉴定所, 杭州 310003; 2. 浙江大学 建工学院, 杭州 310027 |
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| 摘 要： | 针对单层黏弹性地基模型，对循环荷载作傅立叶级数展开，由固结方程求得循环荷载作用下不透水（透水）边界饱和软黏土一维固结解析解。通过不同渗透系数、黏滞系数和弹性模量以及黏弹性与弹性不同地基模型比较等对有效应力的影响，进行了固结性状分析。结果表明、在循环荷载作用下地基中各点的有效应力并不随荷载的变化而同步变化，而是按一定规律滞后发展；有效应力最终达到一个稳定状态，每一个加载卸载循环下有效应力幅值在一个振荡周期的平均值变化趋近于0；软黏土的流变特性对固结的影响主要发生在中、后期。
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| 关 键 词： | 循环荷载 黏弹性 解析解 固结 |
| 文章编号： | 1000-7598-（2008）02-470-05 |
| 收稿时间： | 2006-05-12 |
| 修稿时间： | 2006年5月12日 |
Study on one-dimensional consolidation behavior of saturated clay under cyclic loading |
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| WANG Shao-mei , XIA Sen-wei , JIANG Jun.Study on one-dimensional consolidation behavior of saturated clay under cyclic loading[J].Rock and Soil Mechanics,2008,29(2):470-474. |
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| Authors: | WANG Shao-mei XIA Sen-wei JIANG Jun |
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| Institution: | 1.Hangzhou Institute of buildings safety appraisal, Hangzhou 310003, China ; 2. College of Civil Engineering and Architecare, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | The analytical solution is presented to one dimensional viscoelastic consolidation problem of soft clay with impervious boundaries and pervious boundaries under cyclic loading that has been Fourier expanded. The influence of some parameters, such as permeability coefficient, viscosity coefficient and elastic modulus, etc. and different constitutive relation conditions on the consolidation is investigated. It is shown that the effective stress reaches the stabilized state in the end with certain amount of cycles. The rheological feature of saturated clay mainly functions in the intermediate and long-term stage of consolidation. |
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| Keywords: | cyclic loading viscoelasticity analytical solution consolidation |
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