Effect of sediment model on dynamic pressures of overlying ideal fluid due to SV wave incidence

WANG Jin-ting; ZHANG Chu-han; JIN Feng

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Effect of sediment model on dynamic pressures of overlying ideal fluid due to SV wave incidence

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- Effect of sediment model on dynamic pressures of overlying ideal fluid due to SV wave incidence
- Vol. 29, Issue 9, (2008)
- 作者机构：
  
  清华大学水沙科学与水利水电工程国家重点实验室,北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU443
- Online First：03 August 2013，
  
  Published：2008
- 稿件说明：
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WANG Jin-ting, ZHANG Chu-han, JIN Feng. Effect of sediment model on dynamic pressures of overlying ideal fluid due to SV wave incidence[J]. 2008, 29(9).
DOI：

WANG Jin-ting, ZHANG Chu-han, JIN Feng. Effect of sediment model on dynamic pressures of overlying ideal fluid due to SV wave incidence[J]. 2008, 29(9). DOI：

摘要

采用解析方法，分析了平面SV波斜入射时弹性半空间-淤砂层-理想流体层系统的动力反应，其中将淤砂层分别模拟为线弹性固体、黏弹性固体、理想流体和黏性流体等不同特性的介质，并与将淤砂层模拟为两相多孔介质的计算结果进行了比较。研究表明在平面SV波斜入射的情况下，当渗透系数很小时，多孔介质可以近似简化为黏弹性固体。

Abstract

Through the analytical solutions

the dynamic responses of elastic half-space-sediment-ideal fluid system due to SV wave incidence are investigated. The sediment is modelled respectively as the elastic solid

viscoelastic solid

ideal fluid and vsicous fluid. The results obtained are compared with the case in which sediment is viewed as a two-phase poroelastic medium. It is found that the two-phase poroelastic medium can be simplified approximately as a viscoelastic solid when its permeability is relatively small (k≤10-3 m/s).

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Related Institution

Institute of Disaster Prevention Engineering, Zhejiang University

Key Laboratory of Soft Soils and Geoenvironmental Engineering of Ministry of Education, Zhejiang University

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