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2D and 3D upper bound solutions for tunnel excavation using 'elastic' flow fields

Klar, A; Osman, A.S.; Bolton, M.D.

Authors

A Klar

M.D. Bolton



Abstract

This paper presents 2D and 3D upper bound solutions for the problem of tunnel excavation in soft ground. The solution invokes the use of incompressible flow fields derived from the theory of elasticity and the concept of sinks and sources. Comparison is made with previously published results. For some geometries the current calculation results in lower (better) upper bound values; however, the results were generally close to previously published values.

Citation

Klar, A., Osman, A., & Bolton, M. (2007). 2D and 3D upper bound solutions for tunnel excavation using 'elastic' flow fields. International Journal for Numerical and Analytical Methods in Geomechanics, 31(12), 1367-1374. https://doi.org/10.1002/nag.597

Journal Article Type Article
Publication Date Oct 1, 2007
Deposit Date Jan 23, 2008
Journal International Journal for Numerical and Analytical Methods in Geomechanics
Print ISSN 0363-9061
Electronic ISSN 1096-9853
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 31
Issue 12
Pages 1367-1374
DOI https://doi.org/10.1002/nag.597
Keywords Plasticity, Tunnels, Upper bound, Stability problem.


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