Blast response of segmented bored tunnel using coupled SPH–FE method
Underground transport tunnels are vulnerable to blast events. This paper develops and applies a fully coupled technique involving the Smooth Particle Hydrodynamics and Finite Element techniques to investigate the blast response of segmented bored tunnels. Findings indicate that several bolts failed in the longitudinal direction due to redistribution of blast loading to adjacent tunnel rings. The tunnel segments respond as arch mechanisms in the transverse direction and suffered damage mainly due to high bending stresses. The novel information from the present study will enable safer designs of buried tunnels and provide a benchmark reference for future developments in this area.
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|Item Type:||Journal Article|
|Keywords:||Explosion, Finite element method, Smooth particle hydrodynamics, Segmented tunnel, Dry soil|
|Divisions:||Current > Schools > School of Civil Engineering & Built Environment
Current > Schools > School of Earth, Environmental & Biological Sciences
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2015 The Institution of Structural Engineers|
|Copyright Statement:||NOTICE: this is the author’s version of a work that was accepted for publication in Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Structures, [VOL 2, (2015)] DOI: 10.1016/j.istruc.2015.02.001|
|Deposited On:||15 Apr 2015 00:40|
|Last Modified:||03 Jul 2016 16:30|
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