Response of a buried tunnel to surface blast using different numerical techniques

Koneshwaran, Sivalingam, Thambiratnam, David P., & Gallage, Chaminda (2013) Response of a buried tunnel to surface blast using different numerical techniques. In Topping, B.H.V. & Iványi, P. (Eds.) Proceedings of the 14th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp Press Ltd., Cagliari, Sardinia, Italy.

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Abstract

This paper presents a comparative study on the response of a buried tunnel to surface blast using the arbitrary Lagrangian-Eulerian (ALE) and smooth particle hydrodynamics (SPH) techniques. Since explosive tests with real physical models are extremely risky and expensive, the results of a centrifuge test were used to validate the numerical techniques. The numerical study shows that the ALE predictions were faster and closer to the experimental results than those from the SPH simulations which over predicted the strains. The findings of this research demonstrate the superiority of the ALE modelling techniques for the present study. They also provide a comprehensive understanding of the preferred ALE modelling techniques which can be used to investigate the surface blast response of underground tunnels.

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ID Code: 66699
Item Type: Conference Paper
Refereed: Yes
Keywords: explosion, tunnel, dry soil,, centrifuge test, numerical modelling, strain
DOI: 10.4203/ccp.102.142
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Civil Geotechnical Engineering (090501)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Infrastructure Engineering and Asset Management (090505)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > Schools > School of Earth, Environmental & Biological Sciences
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 [please consult the author]
Deposited On: 29 Jan 2014 01:39
Last Modified: 05 Feb 2014 13:09

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