海上风电单桩部分胶结抛石体防冲刷措施模型试验研究

王百智; 王卫; 闫俊义; 陈松贵; 金峰; 江朝华

doi:10.19912/j.0254-0096.tynxb.2022-0109

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太阳能学报 ›› 2023, Vol. 44 ›› Issue (6) : 383-389. DOI: 10.19912/j.0254-0096.tynxb.2022-0109

海上风电单桩部分胶结抛石体防冲刷措施模型试验研究

王百智¹, 王卫², 闫俊义³, 陈松贵¹, 金峰⁴, 江朝华⁵

作者信息 +

MODEL INVESTIGATION OF OFFSHORE WIND POWER MONOPILE SCOUR PROTECTION MEASURES BASED ON PARTIALLY CEMENTED RIPRAP UNDERWATER

Wang Baizhi¹, Wang Wei², Yan Junyi³, Cheng Songgui¹, Jin Feng⁴, Jiang Chaohua⁵

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文章历史 +

摘要

基于水下自护砂浆自流可控灌浆技术,利用高性能砂浆将单桩基础周围抛石胶结固化成胶结抛石体防护结构,并通过模型比尺为1∶13的大型波流水槽冲刷试验,研究桩周胶结抛石体防护结构在极端波流条件下的防护效果。试验结果表明,在重现期50和100 a极端波流条件下,水下部分胶结抛石体防护结构均能保持整体稳定,并有效减少单桩周围冲刷,桩周最大冲刷分别深度减少了82%和81%,冲刷范围减少了70%和80%。试验结果证明了部分胶结抛石体防护结构对海上风电单桩基础的稳定性起到良好的防冲刷保护作用。

Abstract

Based on self-flow controllable grouting technology of underwater self-protecting mortar, use high-performance mortar to cement and solidify the riprap around the monopile foundation into an underwater cemented riprap protective structure. Through the scour test of a large wave current flume （model scale 1∶13）, the protective effect of underwater partially cemented rockfill protective structure under extreme wave and current conditions are researched. The test results shows that under the extreme wave with retuen period of 50 and 100 a, the underwater protective structure of partially cemented riprap can maintain overall stability. It can effectively reduce the scour around monopile. The maximum scour depth and scour range around a pile can be reduced by 82% and 81% , respectively, the scour range can be reduced by 70% and 80%. The test results prove that the partially cemented riprap protective structure has a good anti-scouring protection effect on the stability of the offshore wind power monopile foundation.

导出引用

王百智, 王卫, 闫俊义, 陈松贵, 金峰, 江朝华. 海上风电单桩部分胶结抛石体防冲刷措施模型试验研究[J]. 太阳能学报. 2023, 44(6): 383-389 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0109

Wang Baizhi, Wang Wei, Yan Junyi, Cheng Songgui, Jin Feng, Jiang Chaohua. MODEL INVESTIGATION OF OFFSHORE WIND POWER MONOPILE SCOUR PROTECTION MEASURES BASED ON PARTIALLY CEMENTED RIPRAP UNDERWATER[J]. Acta Energiae Solaris Sinica. 2023, 44(6): 383-389 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0109

中图分类号： TV36

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基金

中国长江三峡集团有限公司科研项目（202003347）; 水沙科学与水利水电工程国家重点实验室开放研究基金资助课题（sklhse-2020-C-06）; 国家自然科学基金青年项目（52001149）; 国家自然科学基金重点项目（52039005）; 国家自然科学基金国际（地区）合作与交流项目（51861165102）; 中央级公益性科研院所基本科研业务费专项基金（TKS20200204; TKS20210102; TKS20210110）