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Showing: 1 to 10 of 311 matches for "inclined room and pillar rail haulage"  Page   1   2   3   4   5   6   7   8   9  next TITLE Cut-and-Fill Stoping as Practiced at Outokumpu Oy  SUMMARY ... II-PHASE STOPING ROOM ... mostly for zinc ore; Ristonaho and Lampinsaari, in pillar recovery of ... The mine comprises four shafts, an inclined ramp, main transport ... AUTHOR Matikainen, Raimo ; Särkkä, Pekka PUBLISHED 1982 TITLE Ore Moving Logistics for Room and - Pillar Mines in the Viburnum Trend  SUMMARY ... The room-and-pillar layout of the mine uses 9.8 m (32 ... Finished room heights vary from 4.6 m (15 ft) to over ... m (2788 ft) long located in a 15% inclined drift; a ... AUTHOR Weakly, L. A. PUBLISHED 1983 TITLE Mining Practice At Asarco's East Tennessee Zinc Mines  SUMMARY ... The mining method is random room and pillar modified by ... invertical raises up to 46 m (150 ft ) in length but has not lended itselfto inclined raises. ... AUTHOR Dunaway, Samuel M., Jr. PUBLISHED 1977 TITLE Underground Hard Rock Mechanical Mining  SUMMARY ... It drives circular openings inclined upward and relies on gravity for rock removal. ... proposed by DOE, it could work in open-stope, room- and-pillar mines. ... AUTHOR Bullock, Richard L. PUBLISHED 1994 TITLE Technical Papers - Mining Practice - Progress of Mining Studies at Bureau of Mines Oil-shale Mine, Anvil Points, Rifle, Colorado (Mining Tech., Nov. 1947, TP 2286)  SUMMARY ... I am inclined to believe, how- ever, that a procedure for block caving could be worked out, but it ... Trucks would be more efficient in room-and-pillar workings ... AUTHOR Gardner, E. D. PUBLISHED 1949 TITLE Progress Of Mining Studies At Bureau Of Mines Oil-Shale Mine, Anvil Points, Rifle, Colorado  SUMMARY ... I am inclined to believe, how- ever, that a procedure for block caving could be ... trucks; rail haulage, however, does not lend itself to room-and-pillar mining ... AUTHOR Gardner, E. D. PUBLISHED 1947 TITLE Oil Shale Mining Technology  SUMMARY ... underground mfne design and leaving and adequate shaft pillar, we now ... y, a 1 imi ted discussion of Room and Pi ... to move more easily on rough or inclined surfaces ... AUTHOR French, Gordon B. PUBLISHED 1981 TITLE Room-and-Pillar Method of Open- Stope Mining - Production Methods of Room-and-Pillar Coal Mining  SUMMARY Page 1. Chapter 4. Production Methods of Room-and-Pillar Coal Mining :$ RICHARD L. BULLOCK ... Page 2. ROOM-AND-PILLAR METHOD OF OPEN-STOPE MINING 295 ... AUTHOR Bullock, Richard L. PUBLISHED 1982 TITLE Modern Mining Methods-Underground  SUMMARY ... the coalbed if the coal bed itself is inclined and outcrops ... down the pitch, the panel (or room) entries are ... are driven down the pitch, with pillar extrac- tion ... AUTHOR Schroder, John L., Jr. PUBLISHED 1973 TITLE Mining Technology In 1966 - New Technology, Innovations And Operations Set Strong Pace - Underground Mining  SUMMARY ... by the Grangesberg method (for 60"-80" inclined raises), and ... Pillar robbing, in a completed room-and-pillar panel ... towards the next row of pillar stubs left ... AUTHOR duToit, P. J. G. PUBLISHED 1967 Showing: 1 to 10 of 311 matches for "inclined room and pillar rail haulage"  Page   1   2   3   4   5   6   7   8   9  next Search Again