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Published (Version of record)CC BY-NC-ND V4.0, Open Access
Published (Version of record)CC BY-NC-ND V4.0, Open
Conference proceeding
Advanced 3-D modelling for corrosion prediction in underground pipelines
Life-Cycle Performance of Structures and Infrastructure Systems in Diverse Environments, pp.642-649
1st
Ninth International Symposium on Life-Cycle Civil Engineering (IALCCE 2025), 9th (Melbourne, Australia, 15/07/2025–19/07/2025)
2025
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Abstract
Underground ferrous metal pipelines, essential for transporting water, gas, and oil, are highly susceptible to electrochemical corrosion due to interactions with soil, air, and moisture. This degradation impairs the safe and reliable operation of these infrastructure assets, and costs the global economy an estimated US$2.5 trillion annually. Therefore, it is crucial to Accurately accurately predicting corrosion rates is crucial for maintaining pipeline integrity.
To address this challenge, we developed a sophisticated 3-D numerical model using COMSOL Multiphysics. This model couples key processes such as moisture movement, oxygen transport, and electrochemical reactions to predict corrosion effectively in underground pipelines. The study involved simulations of various backfill configurations and trench geome-tries to explore how the influence of these factors influence on corrosion mitigation.
The findings indicate that specific backfill configurations, when combined with appropriate trench designs, can significantly reduce corrosive interactions at the metal-soil interface. These results highlight the importance of backfill materials in improving pipeline durability and suggest new standards for pipeline construction and maintenance.
Details
- Title
- Advanced 3-D modelling for corrosion prediction in underground pipelines
- Creators
- Liuxin Chen - Monash UniversityThisara Bandara - Monash UniversitySebastian Thomas - Monash UniversityGuoyang Fu - Southern Cross UniversityRavin Deo - Monash UniversityRukshan Azoor - BECAJayantha Kodikara - Monash University
- Publication Details
- Life-Cycle Performance of Structures and Infrastructure Systems in Diverse Environments, pp.642-649
- Conference
- Ninth International Symposium on Life-Cycle Civil Engineering (IALCCE 2025), 9th (Melbourne, Australia, 15/07/2025–19/07/2025)
- Publisher
- CRC Press
- Edition
- 1st
- Identifiers
- 991013303128202368
- Copyright
- © 2025 The Author(s).
- Academic Unit
- Faculty of Science and Engineering; Engineering
- Language
- English
- Resource Type
- Conference proceeding