Authors: Mortazavi, A; Tabatabae Alavi, F

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Mortazavi, A & Tabatabae Alavi, F 2012, 'A study of the behaviour of fully grouted rockbolts subjected to dynamic loading in underground mining', in Y Potvin (ed.), Deep Mining 2012: Proceedings of the Sixth International Seminar on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 105-116,

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The aim of this work was to investigate the behaviour of fully grouted rockbolts subjected to dynamic loading in underground mining conditions. A comprehensive 3D analysis was conducted using the FLAC-3D code. A rectangular drift reinforced with fully grouted rockbolts was subjected to dynamic loads representing a rockburst at upper levels. The effects of bolt end plate on bolt dynamic behaviour were also evaluated. Proper interface elements were employed at bolt/grout and grout/host rock interfaces and a full stress analysis of a reinforced roof was carried out. The analysis results demonstrate the stress and displacement distribution along the bolt as a function of dynamic loading.

Ansell, A. (2005) Laboratory testing of a new type energy absorbing rockbolt, Tunnelling and Underground Space Technology, Vol. 20, pp. 291–300.
Hedley, D.F.G. and Whitton, N. (1983) Performance of bolting systems subject to rockbursts, in Symposium on Underground Support Systems, J. Udd (ed), 19–21 September, Canadian Institute of Mining and Metallurgy, pp. 73–78.
Itasca Consulting (1992) Fast Lagrangian Analysis of Continua in 3 Dimensions, Users Guide, Minneapolis, USA.
Littlejohn, G.S. and Rodger, A.A. (1989) Dynamic response of rockbolt system, in Proceedings 2nd Conference of Foundation and Tunnel, London, pp. 57–64.
Xu, C. (1993) Dynamic analysis of resin grouted roof bolts, PhD thesis, Department of Geotechnical Engineering, Michigan Technological University, USA.
Yi, X. and Kaiser, P.K. (1994) Impact testing for rockbolt design in rockburst condition, International Journal of Rock Mechanics and Mining Science, Vol. 31, No. 6, pp. 671–685.

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