刘红军,孙鹏鹏,胡瑞庚,曹磊

• 1:中国海洋大学山东省海洋环境地质工程重点实验室
• 2:中国海洋大学环境科学与工程学院

摘要(Abstract)：

通过ABAQUS建立海上风电单桩基础的数值模型,并与室内模型桩试验的结果作对比,验证模型的可靠性。根据实际桩土参数建立数值模型,并对桩土模型施加循环波浪荷载,分析波浪荷载作用下桩周土体的水平应力和水平位移随时间的变化特性,以及土体水平位移在空间分布上的差异。结果表明在波浪荷载作用下桩周土体的水平应力和水平位移在一定范围内循环波动,且极端海况下土体所受的扰动远大于正常海况下土体所受扰动。海床表面桩周土体在距桩体10 m范围内受桩体影响显著,竖直方向上桩身以泥面以下大约2/3桩身入土深度处的一点为基点做循环摆动,且这一旋转基点的位置与波浪力的大小无关。

关键词(KeyWords)： 单桩基础;循环波浪荷载;桩土相互作用;数值分析

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41572247);; 山东省科技攻关项目(2014GGX104007)资助~~

作者(Author): 刘红军,孙鹏鹏,胡瑞庚,曹磊

DOI: 10.16441/j.cnki.hdxb.20180402

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