Description du projet
De nouvelles connaissances sur la résilience des infrastructures énergétiques en mer
Les infrastructures énergétiques en mer (OEI pour «offshore energy infrastructure») subissent d’importantes déformations structurelles et une rotation des fondations lors des glissements de terrain sous-marins sismiques (SSL pour «seismic submarine landslide»), ce qui complique la prévision des performances des OEI. La méthode pseudo-statique conservatrice couramment utilisée pourrait s’avérer trop conservatrice/non conservatrice dans des situations spécifiques (en cas de SSL) lors de l’évaluation des dommages potentiels aux OEI. En outre, l’approche dynamique adoptée peut être à la fois longue et coûteuse. Le projet PRO-SLIDE, financé par le programme MSCA, vise à développer une solution pour évaluer la résilience des OEI ayant subi des dommages dus à un SSL. Il s’appuiera sur des techniques avancées telles que les modèles numériques, l’apprentissage automatique et les analyses probabilistes/de fragilité afin de fournir des orientations pour les analyses futures. Le projet s’appuiera sur une série d’essais en centrifugeuse et sur une base de données complète générée par des analyses numériques avancées du mécanisme d’interaction OEI-SSL.
Objectif
The offshore energy infrastructure (OEI)-soil interaction has been studied by numerical analyses in the literature. However, these studies are rarely focused on the performance of OEIs during the seismic submarine landslide (SSL). Moreover, the pseudo-static approach employed for stability assessment of OEI is generally conservative for deep water conditions. The dynamic approach needs a wide range of input parameters and spends a lot of time and money on analyses. Accordingly, predictive models are needed to fill the gap between these approaches for a simple prediction of OEI deformations during SSL.
The overall objective of PRO-SLIDE is to develop a reliable and low computational cost solution for simplified resilience assessment of OEIs damage due to SSLs. Answering this concern is not trivial, but it can guide future analyses and contribute to gaining insights from a calibration effort using numerical models that will be undertaken using a benchmark centrifuge model that can successfully capture key mechanisms and features as well as trends. The findings will be based on a database produced via advanced numerical analyses of the OEI-SSL mechanism using the DEM-FEM, a catalog of near-fault ground motions, machine learning technic, and probabilistic/fragility analyses.
A two-way transfer of knowledge is guaranteed since I have a solid background in the development of earthquake-induced sliding models and ground motions databank and also my supervisor at AAU has vast experience in the resilience assessment of OEIs and data-driven models. Moreover, my supervisors at secondments (RMIT&HKUST) have great experience in the fields of OEI numerical simulation and physical modeling. Accordingly, this will ensure the achievement of this timely and innovative project as well as the dissemination and exploitation of the expected results. The acquired skills will allow me to embrace an academic/non-academic career path in the EU.
Champ scientifique
Mots‑clés
Programme(s)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Régime de financement
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European FellowshipsCoordinateur
9220 Aalborg
Danemark