RESEARCH ON SCOUR RESISTANCE OF INDUSTRIAL WASTE SLAG-CEMENT FLUIDIZED CURING SOIL FOR OFFSHORE WIND POWER FOUNDATION

Jia Zhaolin; Zhao Qixiang; Lian Jijian; Yang Defeng; Zhang Zheng; Wang Suli

doi:10.19912/j.0254-0096.tynxb.2025-0476

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (7) : 260-267. DOI: 10.19912/j.0254-0096.tynxb.2025-0476

RESEARCH ON SCOUR RESISTANCE OF INDUSTRIAL WASTE SLAG-CEMENT FLUIDIZED CURING SOIL FOR OFFSHORE WIND POWER FOUNDATION

Jia Zhaolin¹, Zhao Qixiang¹, Lian Jijian^1,2, Yang Defeng³, Zhang Zheng¹, Wang Suli⁴

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Abstract

This study presents a comprehensive analysis of fluidized stabilized soil （FSS） formulations integrating industrial by-products—ground granulated blast furnace slag （GGBS） and fly ash （FA）—as partial cementitious replacements. Experimental evaluations employed unconfined compressive strength （UCS） testing and scour resistance assays to quantify the influence of mix design parameters and curing duration on UCS, scour rate, critical shear stress （$ \tau_{c} $）, and critical flow velocity （V_C）. Findings reveal that GGBS substitution significantly enhances both mechanical strength and marine erosion resistance, with a 1∶1 GGBS-to-cement blend achieving $ \tau_{c} $=17.18 Pa and V_C=2.84 m/s after 24-hour curing, representing 67.87% and 43.31% improvements in V_C and $ \tau_{c} $ respectively compared tocontrol specimens （C20）. Conversely, FA contents exceeding 4% by mass demonstrated detrimental effects on both strength development and scour resistance. Empirical exponential correlations were derived between UCS,$ \tau_{c} $, and V_C, forming the basis for a proposed predictive framework enabling rapid assessment of FSS scour resistance under hydraulic loading conditions.

Key words

offshore wind turbine foundation / scour protection / fluidized curing soil / scour resistance / unconfined compressive strength / industrial waste recycling

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Jia Zhaolin, Zhao Qixiang, Lian Jijian, Yang Defeng, Zhang Zheng, Wang Suli. RESEARCH ON SCOUR RESISTANCE OF INDUSTRIAL WASTE SLAG-CEMENT FLUIDIZED CURING SOIL FOR OFFSHORE WIND POWER FOUNDATION[J]. Acta Energiae Solaris Sinica. 2026, 47(7): 260-267 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0476

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