波浪-流作用下分层海床稳定性分析

doi:10.16183/j.cnki.jsjtu.2014.06.011

上海交通大学学报 ›› 2014, Vol. 48 ›› Issue (06): 793-797,803.doi: 10.16183/j.cnki.jsjtu.2014.06.011

所属专题：王建华教授学报发文专辑

波浪-流作用下分层海床稳定性分析

文锋(), 王建华()

上海交通大学船舶海洋与建筑工程学院，上海　200240

收稿日期:2013-10-10 出版日期:2014-06-01 发布日期:2014-06-30
作者简介:文锋（1983-)，男，安徽省金寨县人，博士生，从事海洋岩土方面的研究．E-mail: wenfeng@sjtu.edu.cn.|王建华（联系人），教授，博士生导师，E-mail: wjh417@sjtu.edu.cn.
基金资助:
国家自然科学基金资助项目(41330633)

Stability Analysis of Layered Seabed Under Wave and Current Loading

WEN Feng(), WANG Jian-hua()

School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China

Received:2013-10-10 Online:2014-06-01 Published:2014-06-30

摘要/Abstract

摘要：

基于Biot固结理论，结合波流相互作用理论，采用数值模型分析了分层海床在波浪-流共同作用下的响应，尤其是分层海床的液化可能性及剪切破坏深度．结果表明，顺流的存在不仅会增加液化风险，还会使剪切破坏深度增加，而采用高渗透性土作为覆盖层不仅能有效降低原海床液化风险，且能减小甚至避免原海床的剪切破坏，可用于海床保护．

关键词: 波流荷载, 分层海床, 超孔隙水压力, 有效应力, 海床稳定性

Abstract:

The stability of layered seabed subjected to combined wave and current loading was studied by numerical model based on Biot's consolidation theory. The numerical results reveal that the existence of following current not only aggravates the possibility of liquefaction, but also increases the depth of shear failure. As a treatment, higher permeable soils layered upon seabed composed of low permeable soil will decrease the potential possibility of liquefaction as well as help to prevent original seabed from shear failure.

Key words: wave-current loading, layered seabed, excess pore pressure, effective stress, seabed stability

中图分类号:

TU443

文锋, 王建华. 波浪-流作用下分层海床稳定性分析[J]. 上海交通大学学报, 2014, 48(06): 793-797,803.

WEN Feng, WANG Jian-hua. Stability Analysis of Layered Seabed Under Wave and Current Loading[J]. Journal of Shanghai Jiao Tong University, 2014, 48(06): 793-797,803.

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波浪-流作用下分层海床稳定性分析

Stability Analysis of Layered Seabed Under Wave and Current Loading

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