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Showing: 1 to 10 of 194 matches for "laubscher"  Page   1   2   3   4   5   6   7   8   9  next TITLE Rock mass characterization: a comparison of the MRMR and IRMR classification systems - Synopsis  SUMMARY ... basis for design, having been successfully used in Canada, Chile, the Philippines, Austria, Europe, India, South Africa, Australia and America (Laubscher, 1990 ... AUTHOR Dyke, G. P. PUBLISHED 2008 TITLE A geomechanics classification system for the rating of rock mass in mine design  SUMMARY ... rating of rock mass in mine design by DH LAUBSCHER* ... Taylor4 reviewed the classification systems developed by Wickham, Barton, Bieniawski, and Laubscher and . ... AUTHOR Laubscher, D.H. PUBLISHED 1990 TITLE Rock Mass Charaterisation: A Comparison Of The MRMR And IRMR Classification Systems - Synopsis  SUMMARY ... To address these concerns, Laubscher and Jakubec introduced the In-Situ Rock Mass Classification System (IRMR) in the year 2000. ... AUTHOR Dyke, G. P. PUBLISHED 2008 TITLE Use Of The Mining Rock Mass Rating (MRMR) Classification: Industry Experience  SUMMARY ... D. 2 ABSTRACT In 2000, Laubscher’s Mining Rock Mass Rating (MRMR) classification system was updated and published. The new system ... AUTHOR Jakubec, Jarek ; Esterhuizen, Gabriel S., PH.D. PUBLISHED 2007 TITLE Cave Mining - The State Of The Art  SUMMARY ... by DH Laubscher* ... The Laubscher rockmass classification system that provides both rockmass ratings and rockmass strength is necessary for design purposes. ... AUTHOR Laubscher, D. H. PUBLISHED 1994 TITLE Cave Mining - State-of-the-Art  SUMMARY ... D Laubscher 1 ... The 'Laubscher' rock mass classification system that provides both rock mass ratings and rock mass strength is needed for design purposes. ... PUBLISHED 1995 TITLE Design Rules For Avoiding Draw Horizon Damage In Deep Level Block Caves  SUMMARY ... Block caving is described by Laubscher (1994) as the lowest cost underground mining method provided that the extraction layout is designed to suit the caved ... AUTHOR Butcher, R. J. PUBLISHED 1999 TITLE æAn Underground Air BlastÆ ù Codelco Chile - Division Salvador  SUMMARY ... Below is a summary of some of the geotechnical information associated the Inca West Area: MRMR (Laubscher) See caving chart below. ... CAVING CHART AFTER LAUBSCHER ... AUTHOR M Fishwick Tapia PUBLISHED 2000 TITLE An Empirical Review of Extraction Bolting Design in Deep Ore Zone Mine PT Freeport Indonesia  SUMMARY ... Laubscher (2000) Laubscher suggested that bolt length for block cave production level layout should be related to the rock class as follows: ... AUTHOR E Widijanto ; F Sinaga PUBLISHED 2002 TITLE Analysis of Rock Mass Classification Systems for Crown Pillar Design  SUMMARY ... structures. Laubscher et al (1978) further developed the RMR-system specifically for rock mechanics engineering in the mining industry. ... AUTHOR Porter I PUBLISHED 1994 Showing: 1 to 10 of 194 matches for "laubscher"  Page   1   2   3   4   5   6   7   8   9  next Search Again