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Showing: 1 to 10 of 820 matches for "yield pillar"  Page   1   2   3   4   5   6   7   8   9  next TITLE Discussion – Roof-Control Problems and Supports in a Coal Mine – Mining Engineering, Vol. 43, No. 8, pp. 1062-1065 – Khair, A. W. and Peng, S. S.  SUMMARY ... The ideal yield pillar sizes were determined. ... Under geologic settings present in this mine, implementation of the yield pillar was found to be ineffective. + AUTHOR Parker, J. PUBLISHED 1991 TITLE Discussion – Engineering to Reduce the Cost of Roof Support in a Coal Mine …- Mining Engineering, Vol. 43, No. 8 pp.1062-1065 – Khair, A. W. and Peng, S. S.  SUMMARY ... of the study was shifted from the original stress control method to the method described in the paper, which will be called the “yield pillar method” for ... AUTHOR Serata, S. PUBLISHED 1992 TITLE Total Yield Pillar Longwall Development-Experimental Results, No. 4 Mine, Brookwood, Alabama  SUMMARY ... entry, total yield pillar, longwall development experimental region was established for three adjacent longwall panels utilizing 6.1 m (20 ft ) wide gate ... AUTHOR Gauna, M. ; Martin, E. ; Price, K. R. PUBLISHED 1986 TITLE Numerical simulation of yield pillar behavior with creep material model  SUMMARY Page 1. Numerical simulation of yield pillar ... properly selectedyieldpillarsizemay sign@cantly reduce the model with a (20-ft) yield pillar is shown in Fig. ... AUTHOR Chen, G. ; Sun, C. PUBLISHED 2000 TITLE Yield Pillar Design At Depth Based On Review Of Case Histories  SUMMARY ... YIELD PILLAR DEFINITION A yield pillar is best defined in terms of its load deformation curve. ... YIELD PILLAR DESIGN AT DEPTH BASED ON REVIEW OF CASE HISTORIES ... AUTHOR Schissler, A. P. ; Badr, S. ; Salamon, M. D. G. ; Ozbay, U. PUBLISHED 2003 TITLE Numerical Simulation Of Yield Pillar Behavior With Creep Material Model  SUMMARY ... Preprint 99-65 NUMERICAL SIMULATION OF YIELD PILLAR BEHAVIOR WITH CREEP MATERIAL MODEL G. Chen C. Sun Univ. of Alaska Fairbanks, AK 1 Copyright (c) 1999 by SME ... AUTHOR Chen, G. ; Sun, C. PUBLISHED 1999 TITLE Discussion - Engineering To Reduce The Cost Of Roof Support In A Coal Mine Experiencing Complex Ground Control Problems - Khair, A. W., Peng, S. S.  SUMMARY ... of the study was shifted from the original stress control method to the method described in the paper, which will be called the "yield pillar method for the ... AUTHOR Serata, S. ; Fuenkajorn , K. PUBLISHED 1993 TITLE Discussion - Roof-Control Problems And Supports In A Coal Mine  SUMMARY ... The ideal yield pillar sizes were determined. ... Under geologic settings present in this mine, implementation of the yield pillar was found to be ineffective. + ... AUTHOR Khair, A.W. ; Peng, S. S. PUBLISHED 1992 TITLE Prefailure Pillar Yielding  SUMMARY ... important role in the development of yield pillar systems ... A yield pillar is often defined as a pillar that fails but retains residual strength. ... AUTHOR Agapito, J. F. T. ; Goodrich, R. R. PUBLISHED 2003 TITLE Engineering To Reduce The Cost Of Roof Support In A Coal Mine Experiencing Complex Ground Control Problems  SUMMARY ... Theapproach to solve the problem was toemploy the yield pillar Bickel and Donato, 1988). ... The yield pillar size, based on the mechanical properties of ... AUTHOR Khair, A. W. ; Peng, S. S. PUBLISHED 1992 Showing: 1 to 10 of 820 matches for "yield pillar"  Page   1   2   3   4   5   6   7   8   9  next Search Again