Dual-Beam Mathematical Model for Mechanical Response of Buried Pipeline and Pavement Structures Subjected to Ground Subsidence
Publication: Journal of Pipeline Systems Engineering and Practice
Volume 14, Issue 4
Abstract
To further accurately analyze the mechanical response of buried pipelines and pavement structures subjected to ground subsidence, this study established a dual-beam model consisting of an upper Euler–Bernoulli beam and a lower Euler–Bernoulli beam to simulate pavement structures and pipelines. The embankment fill layer and foundation soil were idealized as in the Winkler foundation model, which was divided into three zones. Coupling differential equations for the behavior of this dual-beam–foundation system were established according to the force equilibrium among the pavement structure, buried pipeline, embankment fill, and foundation soil with voids. The stress distribution and deformation of buried pipelines and pavement structures were solved according to the boundary and geometric conditions. The proposed mechanical model was evaluated on test data and corresponding finite element codes, concretely verifying the model’s effectiveness, and a parametric study was proposed to investigate the behavior of this system, such as the bending stiffness of pipelines, traffic load, the strength of fill layers, and foundation soil.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors acknowledge the financial support provided by Natural Science Foundation of China (Grant No. 42177121) and the Project of Key Laboratory of Geohazard Prevention of Hilly Mountains, Ministry of Natural Resources (Fujian Key Laboratory of Geohazard Prevention, No. FJKLGH2020K001).
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Published In
Journal of Pipeline Systems Engineering and Practice
Volume 14 • Issue 4 • November 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Nov 30, 2022
Accepted: Jun 12, 2023
Published online: Aug 23, 2023
Published in print: Nov 1, 2023
Discussion open until: Jan 23, 2024
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