Assaf Klar
Design oriented linear-equivalent approach for evaluating the effect of tunneling on pipelines
Klar, Assaf; Elkayam, Itai; Marshall, Alec
Authors
Abstract
The process of tunneling is associated with ground movements which may lead to stressing of nearby existing buried infrastructure, and potentially poses a risk of damage. The need for an effective evaluation method of the potential risk increases with the ongoing expansion of underground space utilization. This paper presents a new approach for evaluating the interaction between an assumed input of greenfield tunneling displacements and an existing buried pipeline. The approach integrates new developments with previous research findings to establish a practical interaction analysis methodology that can be used in design. It involves the use of an elastic-continuum analysis to solve the soil-pipeline interaction together with an iterative calculation of the equivalent stiffness in order to consider soil nonlinearity. A set of simplified closed-form expressions, which can be used to evaluate maximum pipeline bending moments within the suggested framework, are presented in the paper. A comparison of the new method results against centrifuge test data and advanced discrete element-method simulations is presented in the paper. The obtained agreement provides validation of the new method over a wide range of tunneling-induced volume losses and pipeline parameters.
Citation
Klar, A., Elkayam, I., & Marshall, A. (2016). Design oriented linear-equivalent approach for evaluating the effect of tunneling on pipelines. Journal of Geotechnical and Geoenvironmental Engineering, 142(1), Article 04015062. https://doi.org/10.1061/%28ASCE%29GT.1943-5606.0001376
Journal Article Type | Article |
---|---|
Acceptance Date | May 28, 2015 |
Online Publication Date | Jul 15, 2015 |
Publication Date | Jan 1, 2016 |
Deposit Date | Aug 2, 2018 |
Journal | Journal of Geotechnical and Geoenvironmental Engineering |
Print ISSN | 1090-0241 |
Electronic ISSN | 1943-5606 |
Publisher | American Society of Civil Engineers |
Peer Reviewed | Peer Reviewed |
Volume | 142 |
Issue | 1 |
Article Number | 04015062 |
DOI | https://doi.org/10.1061/%28ASCE%29GT.1943-5606.0001376 |
Public URL | https://nottingham-repository.worktribe.com/output/1105530 |
Publisher URL | https://ascelibrary.org/doi/10.1061/%28ASCE%29GT.1943-5606.0001376 |
Additional Information | ©2015 American Society of Civil Engineers |
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