港口航道与近海工程2025，Vol.62Issue(6)：33-37,5.DOI:10.16403/j.cnki.ggjs20250607
波浪循环作用下削角式沉箱防波堤地基软化数值模拟研究
Numerical simulation of Foundation Softening Process of Chamfer Caisson Breakwater under Wave Load Circulation
摘要
Abstract
In response to the soft base softening of chamfer caisson breakwater caused by wave load circulation,an empirical constitutive model for soil softening was established on the basis of experimental data,and an analysis was carried out for the dynamic response of break structure-foundation system under the design wave conditions by using numerical calculation methods.Meanwhile,an discussion was made to obtain basic distribution laws of pore water pressure and soil softening coefficient within the range of structure influence based on the model.The research results show that the model may accurately simulate the increase of pore water pressure and the softening process of surface soft soil based on the chamfer caisson breakwater being affected by wave load circulation.To excavate the soft base and refill surface soil can effectively reduce the softening range and degree of soft soil under wave load circulation.Wave load magnitude has significant impact on the softening range and degree of soil body.Therefore,relevant load and soil body parameters shall be taken into account so as to determine the thicknesses of excavation and refill in the detailed design.关键词
削角式沉箱/孔隙水压力/软化系数/换填厚度Key words
chamfer caisson/pore water pressure/softening coefficient/soil refill thickness分类
建筑与水利引用本文复制引用
Li Yefu,Feng Yuanfei,Zhu Feng..波浪循环作用下削角式沉箱防波堤地基软化数值模拟研究[J].港口航道与近海工程,2025,62(6):33-37,5.基金项目
国家重点研发计划项目(2023YFB2604200)、中国港湾2025年重大科技研发项目(2025-ZGKJ-ZDYF-05) （2023YFB2604200）
