Articles | Volume 18, issue 6
Nat. Hazards Earth Syst. Sci., 18, 1811–1823, 2018
https://doi.org/10.5194/nhess-18-1811-2018
Nat. Hazards Earth Syst. Sci., 18, 1811–1823, 2018
https://doi.org/10.5194/nhess-18-1811-2018

Research article 29 Jun 2018

Research article | 29 Jun 2018

The effects of gravel cushion particle size and thickness on the coefficient of restitution in rockfall impacts

Chun Zhu et al.

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Cited articles

Asteriou, P. and Tsiambaos, G.: Empirical model for predicting rockfall trajectory direction, Rock Mech. Rock Eng., 49, 927–941, 2016. 
Asteriou, P., Saroglou, H., and Tsiambaos, G.: Geotechnical and kinematic parameters affecting the coefficients of restitution for rockfall analysis, Int. J. Rock Mech. Min., 54, 103–113, 2012. 
Asteriou, P., Saroglou, H., and Tsiambaos, G.: Rockfall: scaling factors for the coefficient of restitution. Eurock Rock Mechanics for Resources, Energy & Environment, Taylor & Francis Group, London, 19, 109–113, 2013. 
Aydin, A.: ISRM Suggested method for determination of the Schmidt hammer rebound hardness: revised version, Int. J. Rock Mech. Min., 46, 627–634, 2009. 
Bouguet, J. Y.: Camera calibration toolbox for Matlab, available at: http://www.vision.caltech.edu/bouguetj/calib_doc (last access: 20 January 2012), 2008. 
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Short summary
Gravel cushions are widely used for rockfall prevention in open-pit mines to absorb energy; the energy-consumption and buffer mechanism of different thicknesses and particle sizes of gravel cushions under the impact effects are studied. A series of laboratory tests for different cushions are conducted, combining the blocks' volume and drop height. It provides a theoretical and practical basis for the wide application of cushion design to control rockfall.
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