Consolidation and dynamics of 3D unsaturated porous seabed under rigid caisson breakwater loaded by hydrostatic pressure and wave

作     者：YE JianHong JENG DongSheng CHAN A H C 

作者机构：Division of Civil EngineeringUniversity of DundeeDundee DD14HNUK Department of Civil EngineeringUniversity of BirminghamBirminghamB152TTUK 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2012年第55卷第8期

页      面：2362-2376页

核心收录：

学科分类：0810[工学-信息与通信工程] 070704[理学-海洋地质] 0709[理学-地质学] 080703[工学-动力机械及工程] 07[理学] 0707[理学-海洋科学] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：the financial support from EPSRC #EP/ G006482/1 the funding support of Oversea Research Student Award from Scottish Government, UK 

主　　题：三维有限元法 静水压力 动态加载 Navier-Stokes方程 海底 沉箱 非饱和 三维有限元分析 

摘      要：In this study,based on the dynamic Biot s theory u-p approximation,a 3D finite element method(FEM) numerical soil model is developed,in which the Generalized Newmark-β method is adopted to determine the time *** developed 3D FEM soil model is a part of the coupled model PORO-WSSI 3D for 3D wave-seabed-marine structures interaction problem,and is validated by the analytical solution proposed by Wang(2000) for a laterally infinite seabed loaded by a uniform *** adopting the developed 3D soil model,the consolidation of seabed under a caisson breakwater and hydrostatic pressure is *** numerical results show that the caisson breakwater built on seabed has very significant effect on the stresses/displacements fields in the seabed foundation after the transient deformation and primary consolidation are *** parametric study indicates that the Young s modulus E of seabed is the most important parameter to affect the settlement of breakwater,and the displacement fields in seabed *** the consolidation status as the initial condition,the interaction between ocean wave,caisson breakwater and seabed foundation is briefly *** 3D ocean wave is determined by solving the Navier-Stokes equations with finite volume method(FVM).The numerical results indicate that there is intensive interaction between