Numerical Analysis on Cnoidal Wave Induced Response of Porous Seabed with Definite Thickness  

作　　者：徐云峰 夏小和 王建华 陈锦剑 

机构地区：[1]Department of Civil Engineering,Shanghai Jiaotong University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2013年第6期650-654,共5页上海交通大学学报（英文版）

基　　金：the National Natural Science Foundation of China(No.41272317)

摘　　要：Severe water waves can induce seabed liquefaction and do harm to marine structures. Dynamic response of seabed with definite thickness induced by cnoidal water waves is investigated numerically. Biot＇s consolidation equations are employed to model the seabed response. Parametric studies are carried out to examine the influence of the air content in the pore water and the soil hydraulic conductivity. It is been shown that the air content and soil hydraulic conductivity can significantly affect the pore pressure in seabed. An increase of air content and/or a decrease of soil hydraulic conductivity can change the pore pressure gradient sharply.Severe water waves can induce seabed liquefaction and do harm to marine structures. Dynamic response of seabed with definite thickness induced by cnoidal water waves is investigated numerically. Biot's consolidation equations are employed to model the seabed response. Parametric studies are carried out to examine the influence of the air content in the pore water and the soil hydraulic conductivity. It has been shown that the air content and soil hydraulic conductivity can significantly afect the pore pressure in seabed. An increase of air content and/or a decrease of soil hydraulic conductivity can change the pore pressure gradient sharply.

关 键 词：cnoidal water wave Biot’s consolidation equation SEABED pore pressure 

分 类 号：P753[交通运输工程—港口、海岸及近海工程]