阳江沙扒海上风电三桶吸力桩基础局部冲刷试验研究  

Study on Local Scour of Suction Bucket Foundations at Offshore Wind Farms in Shapa of Yangjiang

作　　者：任灏 刘博 刘晓建 郭辉群 陈晨 REN Hao;LIU Bo;LIU Xiaojian;GUO Huiqun;CHEN Chen(China Energy Engineering Group Guangdong Electric Power Design Institute Co.,Ltd.,Guangzhou 510663,China;Pearl River Hydraulic Research Institute,Pearl River Water Resources Commission of the Ministry of Water Resources,Guangzhou 510610,China;School of Civil Engineering,Sun Yat-Sen University,Zhuhai 519082,China)

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广东广州510663 [2]珠江水利委员会珠江水利科学研究院,广东广州510610 [3]中山大学土木工程学院,广东珠海519082

出　　处：《人民珠江》2022年第5期107-113,共7页Pearl River

基　　金：广东省级促进经济高质量发展海洋专项(GDNRC[2021]41);广州市基础与应用基础研究项目(2755784);水沙科学与水灾害防治湖南省重点实验室开放基金(2020SS02)。

摘　　要：通过建立正态物理模型,研究了阳江沙扒海上风电场三桶吸力桩基础局部冲刷情况。结果表明:波流作用下桶基础最大冲刷深度大于纯水流和纯波浪情况;波流作用下最大冲刷深度出现在吸力桶迎浪面及两侧,背水面轻微淤积,床面冲刷形态呈三角形;三桶吸力桩基础冲刷主要受出土桶身和桶顶肋板绕流影响,因此结构埋置前对床面清淤有利于结构的稳定性,且清淤深度越大对结构的稳定性越有益。A normal physical model is built to study the local scour of suction bucket foundations at offshore wind farms in Shapa of Yangjiang.The results indicate that the maximum scour depth of bucket foundations under the combined action of waves and currents is greater than that under pure currents and pure waves.Under the combined action of waves and currents,the maximum scour depth appears on the side facing water and both sides of the suction bucket with slight silt on the land side,and the scoured bedform is triangular.As the scour of suction bucket foundations is mainly affected by the flow around the unearthed bucket body and bucket top’s rib plates,the dredging of the bed surface before the structure is embedded can make the structure more stable,and the structure stability grows with the increase in the dredging depth.

关 键 词：海上风电场 三桶吸力桩 波流作用 局部冲刷 

分 类 号：P752[天文地球—海洋科学]