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Showing: 1 to 10 of 3440 matches for "large heading"  Page   1   2   3   4   5   6   7   8   9  next TITLE Mining Methods and Costs at the Mount Isa Mines Ltd., Mount Isa, Queensland, Australia  SUMMARY ... which made possible the planning of a com- prehensive diamond-drill prospecting programme to test the continuation of ore at depth in the large low-grade Black ... AUTHOR Mann V I PUBLISHED 1938 TITLE Better Face Ventilation For Mines With Large Entries ? Objective  SUMMARY ... Jet fan at the mouth of a dead-ended large mine entry_ ... The mine face entry was a dead heading 55 feet wide, 30 feet high, and 320 feet long. ... PUBLISHED 1987 TITLE Outburst Experiences at Metropolitan Colliery  SUMMARY ... IMPROVEMENT IN VENTILATION With the multi heading development used with the large diameter boreholes, it became very difficult to ventilate all the places. A ... PUBLISHED 1980 TITLE Laboratory Evaluation Of Janelid Method Of Dead Heading Ventilation  SUMMARY ... a dead heading (the patented Janelid syste m) was investi gated e xperimentally. ... CO 2 as a tracer qas in a 1/4 scale model heading. ... AUTHOR Erickson, A. PUBLISHED 1981 TITLE Water Jet Drilling for Large Diameter Stress Relief Borehole in Cole Seam  SUMMARY ... pre-gas drainage is carried out from the cross cut roadway as shown in Fig.1 • Then a few large diameter borings carried out from the heading of advancing ... AUTHOR Higuchi K ; Sekimoto Y PUBLISHED 1987 TITLE Mining Methods And Costs At The Mount Isa Mines, Ltd., Mount Isa, Queensland, Australia ? Introduction  SUMMARY Page 1. I. C. 6978 UNITED STATES DEPARTMENT OF THE INTERIOR HAROLD L. icKES, SECRETARY BUREAU OF MINES JOHN W. FINCH, DIRECTOR INFORMATION CIRCULAR ... AUTHOR Kruttschnitt, J. PUBLISHED 1937 TITLE Construction and Utilisation of the Olympic Dam Service Decline  SUMMARY ... declines. All development is by large scale trackless equipment. the standard development heading size being 6 m wide by 4.8 m high. ... PUBLISHED 1988 TITLE Using Auxiliary 'Jet Fans" In Large Underground Metal/Nonmetal Mines: A Handbook  SUMMARY ... USING AUXILIARY ''JET FANS" IN LARGE UNDERGROUND ... s. ".poort 0.1. Using Auxiliar y "JeL Fans" in Large Unuerground Metal/ Nonmet al Mines: A Handbook July 1983 ... AUTHOR Dunn, M. F. PUBLISHED 1983 TITLE Controlled Partial Recirculation in Mine Ventilation  SUMMARY ... This, together with the large amount of heat from machinery, usually means that refrigeration is required at much shallower depths ... Ca) F_ Advazx:ed Heading ... PUBLISHED 1994 TITLE Overcoming Adversity ù Ballarat Goldfields Ventilation Incline ù A Mining Challenge  SUMMARY ... The on-site diamond drill rigs were too large for this heading, so a Gardiner Denver air track was mobilised from Bendigo to Ballarat. ... PUBLISHED 2006 Showing: 1 to 10 of 3440 matches for "large heading"  Page   1   2   3   4   5   6   7   8   9  next Search Again