波浪作用下海上风力发电装置基础海床的液化研究  

Study on Liquefaction of Seabed around Offshore Wind Power Facilities Foundation under Wave

作　　者：肖金龙[1] 张金凤[1] 张庆河[1] 王智勇[1] 

机构地区：[1]天津大学建筑工程学院,天津大学水利工程仿真与安全国家重点实验室,天津300072

出　　处：《港工技术》2013年第4期46-49,共4页Port Engineering Technology

基　　金：天津市应用基础及前沿技术研究计划青年基金资助项目(12JCQNJC04100)

摘　　要：基于FLOW软件建立三维数值波浪水池模型,模拟海上风力发电装置筒型基础周边的波浪场和海床表面的波压力,利用有限元软件ABAQUS建立筒型基础及周边海床的三维动力响应数值模型,研究不同波浪条件下筒型基础周边海床的动力响应和液化深度。研究结果表明:波浪作用下海上风电筒型基础迎浪侧的海床易发生液化,风力发电装置基础周围海床的液化深度随波高加大而增加,由于筒型基础的入土深度较大,筒内土体不发生液化。Based on FLOW software, 3D numerical wave basin model is built to simulate wave fields around barrel-type foundation of offshore wind power facilities and wave pressure on the seabed. A 3D numerical model is built to simulate the dynamic response of the barrel-type foundation and the seabed around the foundations by applying finite element software ABAQUS. Research is made for the dynamic response and liquefaction depth of the seabed around the barrel-type foundation under different wave conditions. The research results show that the wave- side seabed around offshore wind power barrel- type foundation is easy to be liquefied under wave, and the liquefaction depth will be raised with the increase of wave height. In addition, the soil body inside the foundation will not be liquefied due to large embedded depth of barrel-type foundations.

关 键 词：海上风力发电装置 筒型基础 波浪 海床 液化 

分 类 号：TU435[建筑科学—岩土工程]