Finite Element Analysis of Structural Lining Materials for Pipeline Rehabilitation
Publication: Construction Research Congress 2024
ABSTRACT
The resilience of pipeline infrastructure is pivotal to the safety of the industries and residents. Aging issues of pipelines, such as time-induced deterioration, pose a significant potential for leaks or even explosions, with devastating consequences for lives and properties. To address the challenges, epoxy resin liner emerges as a practical trenchless solution to rehabilitate pipeline with minimal interference to surrounding environment. In addition to pure epoxy, we introduce epoxy/carbon nanotube (CNT) composite as an alternative structural lining material to assess the improvement brought about by nano additives. The research investigates the effectiveness of structural liners in underground pipeline maintenance and rehabilitation through a three-dimensional finite element analysis (FEA) model. Computational models are constructed to simulate steel gas pipes and structural liners under various pressurized conditions. Through a comprehensive parametric study, we explored the effect of various factors, including liner thickness and the addition of CNTs, on the mechanical performance of both the pipeline and the structural liner. The findings guide trenchless construction and maintenance procedure, ultimately enhancing the safety and reliability of pipeline infrastructure.
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Construction Research Congress 2024
Pages: 671 - 678
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Published online: Mar 18, 2024
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