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Full Description
Fragmentation characteristics influence mucking productivity, crusher throughput and energy consumption, plant efficiency, yield and recovery, or the price itself of the end product in the case of industrial minerals and aggregates. Reliable, quantitative measurements of fragment sizes are instrumental in controlling and optimizing the blasting results.
Measurement and Analysis of Blast Fragmentation presents the latest developments in rock fragmentation measurement techniques and analysis. It includes image analysis and machine vision techniques, either photographic or 3D such as stereo-photogrammetry and laser triangulation; case studies of fragmentation measurements in a variety of situations and used in different optimization and control tasks; fragmentation analysis and new suitable functional descriptions of size distributions, and model-scale fragmentation tests with weighed size distribution data.
The contributions in this book were presented at the workshop Measurement and Analysis of Blast Fragmentation, which was hosted by Fragblast 10 (New Delhi, India, November 2012), provide a snapshot of the activity in rock fragmentation measurements and analysis around the world, and are a must-have reference for engineers and researchers working in rock blasting.
Contents
Preface Organising Institution Committees Sponsors Technology developments A history of digital image analysis technique for blast fragmentation assessment and some Indian contributions A.K. Raina Automated rock fragmentation measurement with close range digital photogrammetry M.J. Noy Automated, on-line, calibration-free, particle size measurement using 3D profile data M.J. Thurley Surfometric imaging for dimensional analysis of individual aggregates and bulk samples G. Dislaire, P. Illing, C. Laurent, E. Pirard, P. Di Carlo & C. Moitroux Designing and optimising surface blasts using 3D images M. Potsch, A. Gaich & R.A. McClure Fragmentation testing Experimental blast fragmentation research in model-scale bench blasts P. Schimek, F. Ouchterlony & P. Moser Fragmentation under different confinement conditions and the burden behavior-small scale tests N. Petropoulos, D. Johansson & F. Ouchterlony Size distributions A three parameter rock fragmentation distribution A.T. Spathis On the performance of truncated distributions to describe rock fragmentation J.A. Sanchidrian, P. Segarra, L.M. Lopez, F. Ouchterlony & P. Moser Applications of fragmentation measurement Assessment of objective based blast performance: Ranking system V.R. Sastry & K.R. Chandar Return on experience from full-scale open pit blasting experiments F. Delille, D. Goetz & B. Tessier Fragmentation risk assessment in open-pit blasting using interaction matrix-vulnerability index method F. Faramarzi, H. Mansouri, M.A.E. Farsangi & M. Monjezi Optimisation of blast design for an iron ore mine and assessment of fragmentation through image processing H.S. Venkatesh, K. Vamshidhar, G. Gopinath, A.I. Theresraj & R. Balachander Research on prediction of average blasting fragmentation based on BP neural network G.Q. Zhang, T.J. Tao, X.G. Wang & C.P. Wu Assessing the effect of rock mass properties on rock fragmentation A.K. Sirveiya & N.R. Thote Author index
