Integrated Assessment Methodology for Jack-Up Stability: Centrifuge Test of Entire Four-Legged Model for WTIVs
Rattachement africain : cn. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Although wind turbine installation vessels (WTIVs) are increasingly operating in deepwater complex geological areas with larger scales, systematic research on and experimental validation of platform jack-up stability remain insufficient. This study aimed to establish a comprehensive evaluation framework encompassing penetration depth, anti-overturning/sliding stability, and punch-through risk, thereby filling the gap in holistic platform stability analysis. An entire four-legged centrifuge test at 150× g was integrated with coupled Eulerian–Lagrangian (CEL) numerical simulations and theoretical methods to systematically investigate spudcan penetration mechanisms and global sliding/overturning evolution in clay/sand. The key findings reveal that soil properties critically influence penetration resistance and platform stability: Sand exhibited a six-times-higher ultimate bearing capacity than clay, yet its failure zone was 42% smaller. The sliding resistance in sand was 2–5 times greater than in clay, while the overturning behavior diverged significantly. Although the horizontal loads in clay were only 50% of those in sand, the tilt angles at equivalent sliding distances reached 8–10 times higher. Field validation at Guangdong Lemen Wind Farm confirmed the method’s reliability: penetration prediction errors of <5% and soil backflow/plugging effects were identified as critical control factors for punch-through risk assessment. Notably, the overturning safety factors for crane operation at 90° outreach and storm survival were equivalent, indicating operational load combinations dominate overturning risks. These results provide a theoretical and decision-making basis for the safe operation of large WTIVs, particularly applicable to engineering practices in complex stratified seabed areas.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Integrated Assessment Methodology for Jack-Up Stability: Centrifuge Test of Entire Four-Legged Model for WTIVs
- Date Crossref
- 17/07/2025
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
-
Marine Design & Research Institute of China pays non établi dans la noticeStructure de recherche
-
Shanghai Ocean University pays non établi dans la noticeUniversité ou école supérieure
-
Tianjin University State Key Laboratory of Hydraulic Engineering Simulation and Safety pays non établi dans la noticeUniversité ou école supérieure
-
Tianjin Chengjian University pays non établi dans la noticeUniversité ou école supérieure
-
School of Naval Architecture Ocean and Civil Engineering State Key Laboratory of Ocean Engineering pays non établi dans la noticeUniversité ou école supérieure
-
School of Civil Engineering Geotechnical Institute pays non établi dans la noticeUniversité ou école supérieure
Marine Design & Research Institute of China, Shanghai Ocean University et State Key Laboratory of Hydraulic Engineering Simulation and Safety — Tianjin University, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.