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Showing: 1 to 10 of 778 matches for "gate road roof support"  Page   1   2   3   4   5   6   7   8   9  next TITLE Design Methodology For Standing Secondary Roof Support In Longwall Tailgates  SUMMARY ... wood and concrete cribbing for secondary roof support. ... applicable for these alternative support technologies ... error approach to tongwail gate road support is no ... AUTHOR Mucha, Thomas P. ; Barczak, Thomas M. ; Dolinar, Dennis R. ; Bower, Joe ; Bryja, James J. TITLE The Critical Pillar Concept In Yield Pillar-Based Longwall Gate Road Design  SUMMARY ... yield nonviolently or yield before the roof and floor ... damage, but is too small to support full abutment ... a field study of a tapering gate road was conducted by ... AUTHOR Koehler, J.R. PUBLISHED 1995 TITLE Gob Canopy Roof Support for Difficult Natural Conditions  SUMMARY ... Kelley, JH "Gob Canopy for a Mine Roof Support" USPatent #4.480.946 ... Wuest, WJ "Critical pillar concept in yield-pillar-based longwall gate-road design." Minina ... AUTHOR Kelley, Jay Hilary PUBLISHED 1997 TITLE Applications Of The Coal Mine Roof Rating (CMRR) For Ground Control Planning And Operations  SUMMARY ... to learn and use, CMRR data are a useful tool with applications to longwall gate road pillar design, safety hazard mapping, and artificial roof support analysis ... AUTHOR Wuest, W.J. PUBLISHED 1995 TITLE Breaking The Glass Ceiling In Advance Rates Via Technology And People  SUMMARY ... Gate road development is via single entry, full extraction, with passive roof support using arches and props. The longwalls operate in an advancing sequence. ... AUTHOR Lewis, B. C. PUBLISHED 1999 TITLE Investigation of Longwall Gateroad Roof Support Characteristics at Powhatan No. 4 Mine - Instrumentation Plan  SUMMARY ... 4 Page 4. INVESTIGATION OF LONGWALL GATE ROAD ROOF SUPPORT CHARACTERISTICS AT POWHATAN NO. 4 MINE Instrumentation Plan by G. J. Chekan 1 and D. R. Babich 1 ... AUTHOR Chekan, G. J. PUBLISHED 1982 TITLE Longwall Retreat of Gate Road Pillars – RI 9444  SUMMARY ... the loads imposed on the gate road pillars and ... Pillar and support loading measurements and stability observations revealed that the roof and the ... AUTHOR Listak, J. M. ; Bauer, E. R. PUBLISHED 1993 TITLE Breaking The Glass Ceiling In Advance Rates Via Technology And People  SUMMARY ... Gate road development is via single entry, full extraction, with passive roof support using arches and props. The longwalls operate in an advancing sequence. ... AUTHOR Lewis, B. C. PUBLISHED 1999 TITLE Development Rates Using Conventional Continuous Miner Technology in Deep Underground Mines in Australia  SUMMARY ... 0 Gate Road Pillar 2H Gate Road Pillar 2H <<;, 100 x 50m 50x5Om ... ij Cutting & loading time -::: Wheeling time , Roof support time Rib support time Fig. ... AUTHOR Misra A PUBLISHED 1991 TITLE Tailgate Support Evaluation at Plateau Mining Company  SUMMARY ... Gate road layout directly impacts loads transferred to the tailgate (1). Roof defonnations and support loads are also affected by the roof and floor lithology. ... AUTHOR Maleki, H. N. PUBLISHED 1986 Showing: 1 to 10 of 778 matches for "gate road roof support"  Page   1   2   3   4   5   6   7   8   9  next Search Again