| 考虑基岩作用的圆形粘弹性地基振动分析 |
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| 引用本文： | 郑灶锋,蔡袁强,徐长节,朱渠艳.考虑基岩作用的圆形粘弹性地基振动分析[J].江南大学学报(自然科学版),2004,3(5):512-515,543. |
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| 作者姓名： | 郑灶锋 蔡袁强 徐长节 朱渠艳 |
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| 作者单位： | 1. 浙江大学,岩土工程研究所,浙江,杭州,310027
2. 杭州宋都房地产公司,浙江,杭州,310002 |
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| 摘 要： | 针对Merchant粘弹性本构模型，从轴对称饱和地基动力方程出发，运用Hankel积分变换，研究了粘弹性地基的竖向振动问题，获得了位移、应力、孔隙水压力及渗流量的积分形式解．并由此结合数值算例，讨论了粘弹性地基受动力荷载作用的振动特性．结果表明：地基竖向振幅沿半径呈波动衰减，粘弹性土体竖向振幅随半径变化要比弹性土体的小．
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| 关 键 词： | Merchant模型 Hankel变换 饱和地基 振动分析 |
| 文章编号： | 1671-7147(2004)05-0512-04 |
Vibration Analysis of Circular Visco-Elastic Soils with Subjacent Rock-Stratum |
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| ZHENG Zao-feng,CAI Yuan-qiang,XU Chang-jie,ZHU Qu-yan.Vibration Analysis of Circular Visco-Elastic Soils with Subjacent Rock-Stratum[J].Journal of Southern Yangtze University:Natural Science Edition,2004,3(5):512-515,543. |
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| Authors: | ZHENG Zao-feng CAI Yuan-qiang XU Chang-jie ZHU Qu-yan |
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| Institution: | ZHENG Zao-feng~1,CAI Yuan-qiang~1,XU Chang-jie~1,ZHU Qu-yan~2 |
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| Abstract: | Based on the Merchant model and dynamic equation of axisymmetric saturated soils, Hankel transform was used to study the vertical vibration problem of visco-elastic soils. The general solutions of displacement, stress, porewater pressure and the water flowing out of soils were obtained in integral form. According to the numerical results, the vibration responses of visco-elastic soils were discussed. The results shows that the amplitude of soils decays and fluctuates with the radius, and the vertical displacement of elastic soils, which is varied with the radius, fluctuated more sharply than that of the visco-elastic soils. |
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| Keywords: | Merchant model Hankel transform saturated soils vibration analysis |
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