NUMERICAL SIMULATION OF DYNAMIC RESPONSES IN TRANSVERSELY ISOTROPIC FLUID-SATURATED ELASTIC SEABED UNDER WAVE ACTIONS

摘要：

The seabed is assumed to be transversely isotropic fluid-saturated elastic porous medium. Based on the anisotropy theory and Biot dynamic consolidation equations, this paper has established a 3D-dynamic seabed model in u-w-p form and defined anisotropic indicators ζα, ζβ, m for the first time. The governing equations are solved by the Wilson-θ finite element program of DSFEM, and the numerical model is verified by test results. The computation results indicate that the amplitude of the pore water pressure decays more quickly with higher wave heights, shorter wave periods, or in shallower water depths.

关键词： transversely isotropic seabed wave action dynamic equation finite element pore water pressure

作者: Zhou-Yuan HENG Wang-Yong HE Sun ZHI Chen-Ming WEI

作者单位: School of Civil and Architecture Engineering, Central South University, Changsha, China School of Water Conservancy, Changsha University of Science and Technology, Changsha, China

会议类型: 国际会议

会议名称: International Symposium on Geoenvironmental Engineering(国际环境岩土工程研讨会

会议地点: 杭州

会议语种:英文

页码: 462-466

在线出版日期: 2009-09-08（万方平台首次上网日期，不代表论文的发表时间）