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S. Koneshwaran, D.P. Thambiratnam, C. Gallage, "Response of a Buried Tunnel to Surface Blast using Different Numerical Techniques", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 142, 2013. doi:10.4203/ccp.102.142

Keywords: explosion, tunnel, dry soil, centrifuge test, numerical modelling, strain.

Summary

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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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 102 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: Paper 142 Response of a Buried Tunnel to Surface Blast using Different Numerical Techniques S. Koneshwaran, D.P. Thambiratnam and C. Gallage Faculty of Science and Engineering Queensland University of Technology, Brisbane, Australia doi:10.4203/ccp.102.142 purchase the full-text of this paper Full Bibliographic Reference for this paper S. Koneshwaran, D.P. Thambiratnam, C. Gallage, "Response of a Buried Tunnel to Surface Blast using Different Numerical Techniques", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 142, 2013. doi:10.4203/ccp.102.142 Keywords: explosion, tunnel, dry soil, centrifuge test, numerical modelling, strain. Summary 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. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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