Search Results

Search Results for "hanging wall rqd"

Search Again

Organization / Society AIME (9) AUSIMM (32) DFI (4) NIOSH (7) SAIMM (8) SME (45) All News Jobs Blogs Research

Showing: 1 to 10 of 105 matches for "hanging wall rqd"  Page   1   2   3   4   5   6   7   8   9  next TITLE Ground Control of a Mine Stope in Weak Rocks Subjected to High In-situ Stresses - A Case Study  SUMMARY ... An undercut was therefore formed under the hanging wall of K2 ... a dramatic change in roof convergence and wall fracture when ... o*.**a....=a 100% RQD Rock quality ... AUTHOR Li, Charlie PUBLISHED 2005 TITLE LKAB Introduces Large Hole Diameter Stoping at the Fabian Mine  SUMMARY ... hanging wall for two reasons: cav- ing has not been observed in the large underground room, and coredrilling in the hanging wall indicated a high RQD (Rock Qual ... AUTHOR Holmberg, R. ; Naarttijärvi, T. ; Nilsson, L. PUBLISHED 1982 TITLE Using Rock Mechanics Classification to Reduce Ground Instability in Amethyst Underground Mining  SUMMARY ... Q =(RQD rJr I) (2) I n J a SRF RQD was again determined by ... The hanging wall, contrary to the mineralised horizon, is highly fractured making it difficult to ... AUTHOR Zingano A ; Costa J F PUBLISHED 1997 TITLE Importance Of Geotechnical Field Mapping In Assessing The Stability Of Underground Excavations  SUMMARY ... along the hanging wall drives and crosscuts where access is obtained into the stopes predicted RMR values between 65–70 and 53–65 for RQD threshold values ... AUTHOR Adu-Acheampong, A. PUBLISHED 2003 TITLE Stability Of Open Stopes Intercepted By Graphitic Shears At Ashanti Gold Fields Company Ltd., Obuasi Operations In Ghana  SUMMARY ... Six uniaxial compressive strength (UCS) tests conducted in the hanging wall and footwall ... The GSI values for Rock Quality Designation (RQD) thresholds of 0.1 and ... AUTHOR Adu-Acheampong, A. PUBLISHED 2003 TITLE The Feasibility Study - Selection Of A Mining Method Integrating Rock Mechanics And Mine Planning  SUMMARY ... foOt- wall, and hanging wall. ... Fracture spacing is defined in terms of fracture per meter and RQD, Rock Quality Designation (Table 2). RQD is the sum length of ... AUTHOR Nicholas, David E. ; Marek, John M. PUBLISHED 1981 TITLE Optimising Pit Slope Design at Kidston Gold Mines  SUMMARY ... a series of very widely spaced zones of poor to good quality (RQD <25 per ... trial was conducted in the massive breccia (domain A) of the hanging wall area (at ... PUBLISHED 1992 TITLE Factors Influencing Unplanned Ore Dilution In Narrow Vein Longitudinal Mining  SUMMARY ... allows the model to be used to assess the degree of footwall and hanging wall overbreak ... From this data it was possible to determine the local RQD ratings of the ... AUTHOR Mitri, H. S. PUBLISHED 2010 TITLE Philosophy of Slope Design: A Case Study of Geotechnical Investigations at Macraes Flat Gold Mine  SUMMARY ... Rock Quality Designation (RQD) - RQD values in the range 30-50 ... In geotechnical studies these are often referred to as structural domains. Hanging Wall Zone ... PUBLISHED 1992 TITLE Redevelopment of the Carnilya Hill Mine  SUMMARY ... The decline was laid out 15 to 20 metres in the hanging wall of the ore with 20 to 25 metre ... NINE DECLINE TOTAL SIZE METRES PER INITIAL 26 RQD* GROUND CONTROL ... PUBLISHED 1981 Showing: 1 to 10 of 105 matches for "hanging wall rqd"  Page   1   2   3   4   5   6   7   8   9  next Search Again