单桩冲刷修复作业中流态固化土留存特性数值研究

王会丽; 毋晓妮; 李濡宇; 蒋海里; 汪潇

doi:10.19912/j.0254-0096.tynxb.2023-0874

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (10) : 440-445. DOI: 10.19912/j.0254-0096.tynxb.2023-0874

单桩冲刷修复作业中流态固化土留存特性数值研究

王会丽¹, 毋晓妮^2,3, 李濡宇^2,3, 蒋海里¹, 汪潇⁴

作者信息 +

NUMERICAL ANALYSIS OF RETENTION CHARACTERISTICS OF FLUIDIZED SOLIDIFIED SLURRY FOR MONOPILE SCOUR REPAIR OF OFFSHORE MONOPILE FOUNDATION

Wang Huili¹, Wu Xiaoni^2,3, Li Ruyu^2,3, Jiang Haili¹, Wang Xiao⁴

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文章历史 +

摘要

固化土防冲刷技术是一种新型的冲刷修复及防护技术。为深入探究流态固化土的泵浆流失影响因素及规律,合理选择泵浆位置,该文采用计算流体力学方法对单桩基础周围流态固化土泵浆过程进行模拟,分析评估不同流态固化土和不同泵浆点对留存率的影响。结果表明,对于单桩,固化土类型和泵浆点的选择主要考虑泵浆过程中流态固化土的终末时刻留存率;建议选用流动值小的流态固化土,以提高留存率;若固化土流动值小,则尽量选单桩上游近桩触底泵浆。

Abstract

A new scour countermeasure using fluidized solidified slurry for offshore monopile foundation has been proposed re-cently. Numerical analyses using a computational fluid dynamics （CFD） approach were conducted to simulate the pumping operation around the monopile in this paper. The effects of pumping location and material property of solidi-fied slurry on the residual rate of fluidized solidified slurry were investigated. The results show that for monopile, the choice of solidified slurry and pumping location is mainly related to the final retention rate of solidified fluid soil during the pumping operation. The fluidized solidified slurry with small flow value is contributed to increasing the retention rate. If the flow value is small, the location on the upstream of monopile and near the bottom of the scour pit is optimal.

导出引用

王会丽, 毋晓妮, 李濡宇, 蒋海里, 汪潇. 单桩冲刷修复作业中流态固化土留存特性数值研究[J]. 太阳能学报. 2024, 45(10): 440-445 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0874

Wang Huili, Wu Xiaoni, Li Ruyu, Jiang Haili, Wang Xiao. NUMERICAL ANALYSIS OF RETENTION CHARACTERISTICS OF FLUIDIZED SOLIDIFIED SLURRY FOR MONOPILE SCOUR REPAIR OF OFFSHORE MONOPILE FOUNDATION[J]. Acta Energiae Solaris Sinica. 2024, 45(10): 440-445 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0874

中图分类号： TU432

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