Improving the Design of Low-Energy Rockfall Catch Fences

Al-Budairi, H. , Gao, Z. , Steel, A., Davies, T. and Wheeler, S. (2017) Improving the Design of Low-Energy Rockfall Catch Fences. In: 6th Interdisciplinary Workshop on Rockfall Protection, Barcelona, Spain, 22-24 May 2017, pp. 139-141. ISBN 9788494690945

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Low-energy rockfall catch fences are widely used along railways and roads to mitigate rock-fall hazards. A typical low-energy catch fence consists of double-twisted wire mesh, posts and ground anchors. Since there is no design guidance, numerical modelling is frequently used as an aid to their design. In this paper, three-dimensional finite element modelling of low-energy rock catch fences is presented, with special focus on the response of the wire mesh, which dissipates much of the impact energy. An accurate representation of the geome-try of the double-twisted wires is used, which enables proper simulation of their defor-mation. The parameters for the constitutive model for the wire are determined from experi-mental tests. Using this approach, good agreement between the numerical simulations of catch fence response to boulder impact and experimental data have been obtained.

Item Type:Conference Proceedings
Keywords:Low energy flexible barrier, double-twisted wire mesh, finite element modelling.
Glasgow Author(s) Enlighten ID:Gao, Dr Zhiwei and Davies, Dr Trevor and Wheeler, Professor Simon and Al-Budairi, Dr Hassan
Authors: Al-Budairi, H., Gao, Z., Steel, A., Davies, T., and Wheeler, S.
Subjects:T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TF Railroad engineering and operation
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Research Group:Infrastructure and Environment
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