On the uncertainties in stone armor stability

IF 4.5 2区 工程技术 Q1 ENGINEERING, CIVIL
Giulio Scaravaglione , Jeffrey A. Melby , Giuseppe R. Tomasicchio , Marcel R.A. van Gent , Alessandra Saponieri
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引用次数: 0

Abstract

The present research aims to investigate the uncertainties in the evaluation of stone armor stability. Data synthesis was achieved by collecting and homogenizing data from 4 distinct studies, considering the inherent variability of the original data. Established stability equations are then applied to the synthetized database to assess both the strengths and limitations of different approaches across deep, shallow, and very shallow water. The results indicate that while nearly all formulations perform well in deep water, some inadequacies emerge in shallow and very shallow water. To address these limitations, the stability equations were recalibrated using the new database, with a focus on error and uncertainty quantification. The refitted Etemad-Shahidi et al. (ES, 2020) and Modified ES (Scaravaglione et al., 2025) equations consistently demonstrate better predictive capability across all water depths. However, damage assessment reveals persistent uncertainties across all formulations, rendering the selection of a single equation inconclusive, mainly due to the high uncertainty of the available laboratory data. Further synthesizing and homogenizing require additional modeling given the varying modeling approaches, the non-homogenous nature of the parametric data, and the limited understanding possible of the detailed laboratory techniques and data analysis carried out.
论石甲稳定性的不确定性
本研究旨在探讨石甲壳稳定性评价中的不确定因素。考虑到原始数据的内在变异性,通过收集和均匀化来自4个不同研究的数据来实现数据综合。然后将建立的稳定性方程应用到综合数据库中,以评估不同方法在深水、浅水和极浅水中的优势和局限性。结果表明,虽然几乎所有配方在深水中都表现良好,但在浅水和极浅水中出现了一些不足。为了解决这些限制,使用新的数据库重新校准了稳定性方程,重点是误差和不确定度的量化。修正后的Etemad-Shahidi等人(ES, 2020)和修正后的ES (Scaravaglione等人,2025)方程在所有水深均表现出更好的预测能力。然而,损害评估揭示了所有公式中持续存在的不确定性,使得单个方程的选择不确定,主要是由于现有实验室数据的高度不确定性。考虑到不同的建模方法,参数数据的非同质性,以及对详细实验室技术和数据分析的有限理解,进一步的综合和均质化需要额外的建模。
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来源期刊
Coastal Engineering
Coastal Engineering 工程技术-工程:大洋
CiteScore
9.20
自引率
13.60%
发文量
0
审稿时长
3.5 months
期刊介绍: Coastal Engineering is an international medium for coastal engineers and scientists. Combining practical applications with modern technological and scientific approaches, such as mathematical and numerical modelling, laboratory and field observations and experiments, it publishes fundamental studies as well as case studies on the following aspects of coastal, harbour and offshore engineering: waves, currents and sediment transport; coastal, estuarine and offshore morphology; technical and functional design of coastal and harbour structures; morphological and environmental impact of coastal, harbour and offshore structures.
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