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Estimation of Burden Rock Movement using High Speed Videography: Case Study of A Limestone Mine
Abstract
In an opencast mine involving hard rock/deposit excavation, blasting becomes a very important activity. Effective usage of explosive energy to fragment and displace the hard strata results in considerable savings. However, the occurrence of blasts in mines is so rapid that the naked eye cannot detect the process. High speed videography can provide the progress of blast in millisecond time scale needed to analyze the happenings in the blast. An attempt is made through this paper to present a case study of assessing the performance of blasts based on explosive energy available at different sections of the blasthole and correlating it with burden rock movement.
Keywords: Blast performance, Energy distribution, Burden rock movement
References
Anon, “Explosives and Rock Blasting Bulletin of Atlas Power Co.,” Dallas, TX, 1987.
A.K. Jha, “Evaluation of Mine Productivity and Economics by Effective Blast Instrumentation-A Techno Economic Proposition”, Journal of Geological Resource and Engineering, No.1 PP. 31–38, 2013.
R. Trivedi, T.N. Singh, and A.K. Raina, “Prediction of Blast-induced Fly rock in Indian limestone mines using Neural Networks”, Journal of Rock Mechanics and Geotechnical Engineering, Elsevier B.V., 1674–7755., 2014.
A.K. Mishra, “Blast Design Using High Speed Video Camera in Coal Measure Rocks”, LAP Lambert Academic Publishing, ISBN: 384658696X., 2012.
G.R. Adhikari, “Selection of blasthole diameter for a given bench height at surface mines”, International Journal of Rock Mechanics and Mining Sciences 36, PP. 843–847, 1999.
R. Feng, A. Thierno, M. Sow, R. xing, and X. Liu, “Optimization and application of blasting parameters based on the pushing-wall mechanism”, International Journal of Minerals, Metallurgy and Materials Volume 19, PP. 879, Oct 2012.
R.F. Chiappetta and B. Vandenberg, “Workshop on Using High-Speed Motion Picture Photography for Blast Analysis, Evaluation and Design”, Seminar Proceedings, Second High-Tech Seminar on State-of-the-Art Blasting Technology, Instrumentation and Explosives Applications, Orlando, Florida, USA, PP. 154., 1990.
V.R. Sastry and K. Ram Chandar, “Analysis of Delay Timing in Blasting Operations using High Speed Video Recordings”, National Seminar on Explosives & Infrastructure Industry, National Institute of Technology Karnataka, Surathkal, 2013.
R.F. Chiappetta and M.E. Mammele, “Analytical High-Speed Photography to Evaluate Air Decks, Stemming Retention and Gas Confinement in Presplitting, Reclamation and Gross Motion Application”, Proceedings, Second International Symposium on Rock Fragmentation by Blasting, PP. 23-28., Keystone, CO, USA, August., 1987.
Rama Sastry Vedala, K. Raghu Chandra, N. Adithya and Saiprasad, “Application of High-Speed Videography in Assessing the Performance of Blasts.” International Journal of Geological and Geotechnical Engineering, 1(2), PP. 19–33., 12/2015.
S.K. Mandal, M. M. Singh and S. Dasgupta, “Theoretical Concept to Understand Plan and Design Smooth Blasting Pattern”, Geotech Geol Eng, PP. 399–416, 2008.
J.C. Jhanwar, and J.L. Jethwa, “The use of air decks in production blasting in an open pit coal mine”, Geotechnical and Geological Engineering 18, PP. 269–287, 2000.
V.R. Sastry, “Study of the impact of ground vibrations and fly rock caused due to blasting operations in Jawahar Khani Opencast Project on surrounding structures, Yellandu”, Singareni Collieries Co. Ltd., Telangana (1997), An Unpublished Report.
Nabiullah, M. Jagdish, B.M.P. Pingua, and T.N. Singh, “Application of High Speed Video technique in Blasting.” Journal of Mines, Metals & Fuels, 50 (3), PP. 54–57., ISSN 0022-2755., 2002.
Sastry, V.R., A study of the effect of some parameters on rock fragmentation due to blasting, An Unpublished Ph.D Thesis, Indian Institute of Technology-Banaras Hindu University, 1989.
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