Design Oriented Linear-Equivalent Approach for Evaluating the Effect of Tunneling on Pipelines

Assaf Klar, Itai Elkayam, Alec M. Marshall

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article number04015062
JournalJournal of Geotechnical and Geoenvironmental Engineering
Issue number1
StatePublished - 1 Jan 2016

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Geotechnical Engineering and Engineering Geology


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