Experimental testing of low energy rockfall catch fence meshes

Gao, Z. , Al-Budairi, H. and Steel, A. (2018) Experimental testing of low energy rockfall catch fence meshes. Journal of Rock Mechanics and Geotechnical Engineering, 10(4), pp. 798-804. (doi: 10.1016/j.jrmge.2018.01.004)

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Flexible catch fences are widely used to protect infrastructure like railways, roads and buildings from rockfall damage. The wire meshes are the most critical components for catch fences as they dissipate most of the impact energy. Understanding their mechanical response is crucial for a catch fence design. This paper presents a new method for testing the wire meshes under rock impact. Wire meshes with different lengths can be used and the supporting cables can be readily installed in the tests. It is found that a smaller boulder causes more deformation localisation in the mesh. Longer mesh length makes the fence more flexible. Under the same impact condition, the longer mesh deforms more along the impact direction and shrinks more laterally. Supporting cables can reduce the lateral shrinkage of the mesh effectively. Most of the impact energy is dissipated by stretching of the wires. Wire breakage has not been observed.

Item Type:Articles
Additional Information:This research is funded by the Knowledge Transfer partnerships (KTP) programme (Project No. 9980) and QTS Group Ltd., a leading railway infrastructure services company in the UK (http://www.qtsgroup.com/).
Glasgow Author(s) Enlighten ID:Al-Budairi, Dr Hassan and Gao, Dr Zhiwei
Authors: Gao, Z., Al-Budairi, H., and Steel, A.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:Journal of Rock Mechanics and Geotechnical Engineering
ISSN (Online):1674-7755
Published Online:03 April 2018
Copyright Holders:Copyright © 2018 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
First Published:First published in Journal of Rock Mechanics and Geotechnical Engineering 10(4):798-804
Publisher Policy:Reproduced under a Creative Commons License

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