Wave‐induced progressive liquefaction in a poro‐elastoplastic seabed: A two‐layered model
Wave‐induced progressive liquefaction in a poro‐elastoplastic seabed: A two‐layered model
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DOI：
10.1002/nag.734
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发表时间：
2009-04
影响因子：
4
通讯作者：
Z. Liu;D. Jeng;A. Chan;M. Luan
中科院分区：
文献类型：
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作者：
Z. Liu;D. Jeng;A. Chan;M. Luan
在本研究中，Sassa 等人提出的预测模型。 (Geotechnique 2001; 51(10):847–857) 基于双层非粘性流体系统，重新研究了海洋沉积物中波浪引起的渐进液化。具有 Sassa 等人的类似框架的替代方法。 (Geotechnique 2001; 51(10):847–857) 的开发是为了纠正所使用的波浪成分的不适当机制。然后，建立了包含粘性效应的双层波模型并应用于描述波诱导液化的渐进性质。综合比较发现，Sassa模型高估了最大液化深度。研究发现，液化土的粘度不可忽略，无限海底的解不适合浅海海底的液化分析。参数研究证明了众多波浪和土壤特性对液化深度的显着影响。版权所有 © 2008 约翰·威利父子有限公司
In this study, the prediction model proposed by Sassa et al. (Geotechnique 2001; 51(10):847–857) for the wave‐induced progressive liquefaction in marine sediment, based on two‐layered inviscid fluid system, is re‐examined. An alternative approach with a similar framework of Sassa et al. (Geotechnique 2001; 51(10):847–857) is developed to correct the inappropriate mechanism of wave components used. Then, a two‐layered wave model which includes viscous effects is established and applied to describe the progressive nature of wave‐induced liquefaction. A comprehensive comparison shows that Sassa's model overestimates the maximum liquefaction depth. It is found that the viscosity of liquefied soil cannot be ignored and the solution for an infinite seabed is not suitable for liquefaction analysis of shallow seabed. A parametric study demonstrates the significant influence of numerous wave and soil characteristics on the liquefaction depth. Copyright © 2008 John Wiley & Sons, Ltd.