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ORIGINAL RESEARCH article
Front. Built Environ.
Sec. Coastal and Offshore Engineering
Volume 11 - 2025 |
doi: 10.3389/fbuil.2025.1545900
This article is part of the Research Topic Enhancing Safety of Marine Engineering in Dynamic Ocean Environments and Multi-Hazard Scenarios View all articles
Probabilistic slope stability analysis on marine clay seabed considering spatial variability of soil parameters
Provisionally accepted- State Key Laboratory of Coastal and Offshore Engineering, Faculty of Infrastructure Engineering, Dalian University of Technology (DUT), Dalian, China
Determining the failure probabilities of submarine slopes over long distances is crucial for assessing slope stability, given the randomness of soil parameters. Based on the theory of stochastic fields and the method of limit equilibrium, this study introduces a quantitative method that incorporates spatial variability of soil parameters to evaluate submarine slope stability. Assuming a linear increase in undrained strength with depth, the slope stability is estimated under static loading derived from nonstationary random fields, and the effect of a weak layer on the slope stability is also analyzed. This study show that ignores the spatial variability of the soil parameters significantly overestimate the performance for the slope stability. In conclusion, the lower and upper ends of the probability index range are found to have great significance in practical engineering design. The combination of traditional deterministic slope analysis and probabilistic assessments will be beneficial to slope engineering practice and will improve the decision-making process.
Keywords: Submarine slopes, spatial variability, random field, Scale of fluctuation, Reliability index
Received: 16 Dec 2024; Accepted: 14 Jan 2025.
Copyright: © 2025 Yu, Bao, Han, Yan, Xu, Wang and Pang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Yunrui Han, State Key Laboratory of Coastal and Offshore Engineering, Faculty of Infrastructure Engineering, Dalian University of Technology (DUT), Dalian, China
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