含液饱和多孔波阻板的地基振动控制研究

周凤玺?1,2,马强1,赖远明2

振动与冲击 ›› 2016, Vol. 35 ›› Issue (1) : 96-105.

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PDF(1943 KB)
振动与冲击 ›› 2016, Vol. 35 ›› Issue (1) : 96-105.
论文

含液饱和多孔波阻板的地基振动控制研究

  • 周凤玺?1,2,马强1,赖远明2
作者信息 +

Analysis of ground vibration control by fluid saturated porous wave impeding block

  • ZHOU Feng-xi1,2, MA Qiang1, MI Hai-zhen1
Author information +
文章历史 +

摘要

基于含液饱和多孔介质中的流-固耦合作用,提出了以含液饱和多孔材料作为隔振屏障的一类新型的地基振动控制体系。考虑在弹性地基内部设置饱和多孔波阻板,基于线弹性理论和Biot多孔介质模型,采用Fourier级数展开的方法,分别建立了地基表面和内部受到条形简谐荷载作用下地基动力响应的计算列式。通过数值算例,与传统的单相固体波阻板的隔振效果进行了比较,并且分析了多孔材料波阻板中固相材料性质、孔隙率、孔隙流体性质等物理力学参数对地基隔振性能的影响规律。结果表明,相对于单相固体波阻板隔振体系,基于含液饱和多孔波阻板的地基隔振体系更加具有优越性,并且更具有可设计性。

Abstract

Besed on the fluid-soilid coupling in fluid saturated porous media, a new type of foundation vibration isolation system is propsoed. Conside setting the saturated porous wave impeding block in elastic foundation which subjected to surface and internal strip harmonic load, using Fouier expansion, the calculation formula were established by the lineat elastic theory and Biot’s model. Through numerical examples, the effect of vibration isolation was compared to conventional single phase solid wave impeding block, and the influence of parameters of porous material, including the properties of solid phase, porosity, pore fluid, were analyzed. The results show that, compared with the single phase solid impending block isolation sytem, fluid saturated porous wave impending block isolation system has more advantages , and more flexible design.

关键词

地基振动控制 / 波阻板 / 含液饱和介质 / 弹性地基 / 条形简谐荷载

Key words

ground vibration control / wave impeding block / fluid saturated porus media / elastic foundation / strip harmonic load

引用本文

导出引用
周凤玺?1,2,马强1,赖远明2. 含液饱和多孔波阻板的地基振动控制研究[J]. 振动与冲击, 2016, 35(1): 96-105
ZHOU Feng-xi1,2, MA Qiang1, MI Hai-zhen1. Analysis of ground vibration control by fluid saturated porous wave impeding block[J]. Journal of Vibration and Shock, 2016, 35(1): 96-105

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