Investigation on the Effect of Geometrical and Geotechnical Parameters on Elongated Offshore Piles Using Fuzzy Inference Systems

Aminfar, Ali and Mojtahedi, Alireza and Ahmadi, Hamid ORCID: https://orcid.org/0000-0002-6192-6275 and Aminfar, Mohammad Hossein (2017) Investigation on the Effect of Geometrical and Geotechnical Parameters on Elongated Offshore Piles Using Fuzzy Inference Systems. China Ocean Engineering, 31 (3). pp. 378-388. ISSN 0890-5487


Abstract

Among numerous offshore structures used in oil extraction, jacket platforms are still the most favorable ones in shallow waters. In such structures, log piles are used to pin the substructure of the platform to the seabed. The pile’s geometrical and geotechnical properties are considered as the main parameters in designing these structures. In this study, ANSYS was used as the FE modeling software to study the geometrical and geotechnical properties of the offshore piles and their effects on supporting jacket platforms. For this purpose, the FE analysis has been done to provide the preliminary data for the fuzzy-logic post-process. The resulting data were implemented to create Fuzzy Inference System (FIS) classifications. The resultant data of the sensitivity analysis suggested that the orientation degree is the main factor in the pile’s geometrical behavior because piles which had the optimal operational degree of about 5° are more sustained. Finally, the results showed that the related fuzzified data supported the FE model and provided an insight for extended offshore pile designs.


Statistics for USQ ePrint 50254
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 26 Jul 2022 02:43
Last Modified: 26 Jul 2022 23:23
Uncontrolled Keywords: Pile, Soil, FEM, Offshore jacket platform, Pile-soil interaction, Fuzzy logic, Fuzzification
Fields of Research (2020): 40 ENGINEERING > 4005 Civil engineering > 400502 Civil geotechnical engineering
Socio-Economic Objectives (2020): 17 ENERGY > 1702 Energy exploration > 170203 Oil and gas exploration
Identification Number or DOI: https://doi.org/10.1007/s13344-017-0044-z
URI: http://eprints.usq.edu.au/id/eprint/50254

Actions (login required)

View Item Archive Repository Staff Only