Estimating the Effects of Tunneling on Existing Pipelines
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 131, Issue 11
Abstract
A method is presented for estimating the maximum bending moment for continuous (or rigidly jointed) pipelines affected by tunnel-induced ground movement. The estimation can be made based on the knowledge of tunnel and pipeline geometries, the stiffness of soil and pipeline, and tunnel-induced ground deformation at the pipeline level. The method takes account of soil nonlinearity by an equivalent linear approach, in which the stiffness of the soil is evaluated based on an average deviatoric strain developed along the pipeline. The approach is conservative and promises that the bending moment is not underestimated. The validity of the method as an upper bound approximation is evaluated against centrifuge test results.
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Acknowledgments
The writers wish to express their sincere gratitude to the Cambridge-MIT Institute (CMI) for sponsoring the research described in this paper. Further, the writers are grateful to the British Technion Society for enabling the collaboration between the Technion–Israel Institute of Technology and Cambridge University without which this paper would not have been possible.
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Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 131 • Issue 11 • November 2005
Pages: 1399 - 1410
Copyright
© 2005 ASCE.
History
Received: Jul 27, 2004
Accepted: Mar 30, 2005
Published online: Nov 1, 2005
Published in print: Nov 2005
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