Deng, J 2014, 'The induced mechanism of pillar rockbursts in deep hard rock mines', in M Hudyma & Y Potvin (eds), Proceedings of the Seventh International Conference on Deep and High Stress Mining
, Australian Centre for Geomechanics, Perth, pp. 689-697.
Rockbursts remain one of the most serious and least understood problems in deep hard rock mines. This study is motivated by the pervasiveness of rockbursts all around the world. It is found that rockbursts are often induced by dynamic fluctuations, which are generated by mining excavations or other sources of vibrations, such as blasting in adjacent stopes. The objective of this paper is to investigate the induced mechanism of pillar rockbursts in deep hard rock mines. Rockbursts in underground mine pillars are considered as a dynamic instability problem of pillar structures. The quantitative relation between blasting and pillar rockbursts is established and parametric resonance mechanism of pillar rockbursts is proposed. This study shows that the damping in pillar rocks could reduce the rockburst occurrence and the minimum value of the excitation amplitude for rockbursts depends on the damping and natural frequency. Contrary to conventional methods where only rock materials or rock specimen were studied for rockbursts, this investigation attaches more focus on the structural effect on rockbursts, which has appeal for practicing engineers.
Bhandari, S 1997, Engineering Rock Blasting Operations, A.A. Balkema, Rotterdam.
Brady, BGH 1990, ‘Preface of Rockbursts and Seismicity in Mines’, in C Fairhurst (ed.), Proceedings of the 2nd International Symposium on Rockbursts and Seismicity in Mines, A.A. Balkema, Rotterdam.
Brady, BHG & Brown, ET 2005, Rock Mechanics for Underground Mining, 3rd edn, Kluwer Academic Publishers, Dordrecht.
Chopra, AK 2011, Dynamics of Structures: Theory and Applications to Earthquake Engineering, 4th edn, Prentice Hall, Upper Saddle River.
Cook, NGW 1965, ‘A note on rockbursts considered as a problem of stability’, Journal of the Southern African Institute of Mining and Metallurgy, vol. 65, pp. 437-446.
Cook, NGW 1967, ‘Contribution to discussion on pillar stability’, Journal of the Southern African Institute of Mining and Metallurgy, vol. 68, pp. 192-195.
Deng, J, Yue, ZQ, Tham, LG & Zhu, HH 2003, ‘Pillar design by combining finite elements, neural networks and reliability: a case study of Feng Huangshanmine in China’, International Journal of Rock Mechanics and Mining Sciences, vol. 40, no. 4, pp. 585-599.
Duvall, WI & Petkof, B 1959, Spherical Propagation of Explosion-generated Strain Pulses in Rock, Report of investigations 5483, United States Department of the Interior, Bureau of Mines, Washington.
Dyskin, AV 1999, ‘On the role of stress fluctuations in brittle fracture’, International Journal of Fracture, vol. 100, pp. 29-53.
Gill, DE, Aubertin, M & Simon, RA 1993, ‘Practical engineering approach to the evaluation of rockburst potential’, in RP Young (ed.), Proceedings of the 3rd International Symposium on Rockbursts and Seismicity in Mines, A.A. Balkema, Rotterdam, pp. 63-68.
Gu, DZ 1979, Fundamentals of Rock Engineering Geomechanics, Science Press, Beijing.
He, MC, Miao, JL & Feng, JL 2010, ‘Rockburst process of limestone and its acoustic emission characteristics under true-triaxial unloading conditions’, International Journal of Rock Mechanics and Mining Sciences, vol. 47, no. 2, pp. 286-298.
Hoek, E 1966, Rock Mechanics - an introduction for the practical engineer, Mining Magazine, April, June and July 1966.
Muller, L 1974, Rock Mechanics, Springer, New York.
Ortlepp, WD 2005, ‘RaSiM comes of age—a Review of the contribution to the understanding and control of mine rockbursts’, in Y Potvin & M Hudyma (eds), Proceedings of the Sixth International Symposium on Rockburst and Seismicity in Mines, Australian Centre for Geomechanics, Perth, pp. 3-20.
Shukla, A, Ravichandran, G & Rajapakse, YDS 2010, Dynamic Failure of Materials and Structures, Springer, New York.
Tan, YA 1991, ‘Rockburst characteristics and effect of rock mass structures’, China Science (Section B), 1991, pp. 985−991.
Vacek, J, Vacek, J & Chocholoušová, J 2008, ‘Rockburst mechanics: insight from physical and mathematical modelling’, Acta Polytechnica, vol. 48, no. 6, pp. 38-44.
Vardoulakis, I 1984, ‘Rockbursting as a surface instability phenomenon’, International Journal of Rock Mechanics and Mining Science & Geomechanics Abstracts, vol. 21, no. 3, pp. 137−144.
Wagner, H 1982, ‘Preface of Rockbursts and Seismicity in Mines’, NC Gay & EH Wainwright (eds), Proceedings of the 1st International Symposium on Rockbursts and Seismicity in Mines, South African Institute of Mining and Metallurgy, Johannesburg.
Wang, SJ 2009, ‘Geological nature of rock and its deduction for rock mechanics’, Chinese Journal of Rock Mechanics and Engineering, vol. 28, no. 3, pp. 433-450.
Wang, SY, Lam, KC, Au, SK, Tang, CA, Zhu, WC & Yang, TH 2006, ‘Analytical and numerical study on the pillar rockbursts mechanism’, Rock Mechanics and Rock Engineering, vol. 39, no. 5, pp. 445-467.
Whyatt, J, Blake, W, Williams, T & White, B 2002, ‘60 Years Of rockbursting in the Coeur D’alene district Of Northern Idaho, USA: lessons learned and remaining issues’, Preprint 02-164, 2002 SME Annual Meeting, February 25 - 27, Phoenix, Arizona.
Xie, WC 2006, Dynamic Stability of Structures, Cambridge University Press, Cambridge.
Xu Z & Huang R 2003, ‘Relationship between rock burst and blasting’, Chinese Journal of Rock Mechanics and Engineering, vol. 22, no. 3, pp. 414−419.
Zubelewicz, A & Mroz, Z 1983, ‘Numerical simulation of rock burst processes treated problems of dynamic instability’, Rock Mechanics and Rock Engineering, vol. 16, pp. 253−274.