Coal pillar load calculation by pressure arch theory and near field extraction ratio

International Journal of Rock Mechanics and Mining Sciences

Volumn 47, Issue 7, 2010, Pages 1158-1165

  Poulsen, B A ^a  

^a CSIRO   (Australia)

Author keywords

Coal pillar; Coal pillar factor of safety; Coal pillar load; Load transfer distance

Indexed keywords

COAL MINES; COMPUTER PROGRAMMING; EXTRACTION; NUMERICAL METHODS; ROOM AND PILLAR MINING; SAFETY FACTOR;

COAL PILLAR; COAL PILLAR FACTOR OF SAFETY; COAL PILLAR LOAD; EXTRACTION RATIO; FACTORS OF SAFETIES; LOAD TRANSFER; LOAD TRANSFER DISTANCE; PILLAR FAILURES;

COAL;

EID: 77956651298     PISSN: 13651609     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ijrmms.2010.06.011     Document Type: Article

References (17)

1. Brady B.H.G., Brown E.T. Rock Mechanics for Underground Mining 1985, George Allen & Urwin, London.
2. Galvin J.M. Considerations associated with the application of UNSW and other pillar design formulae. In: Proc 41st US Symp Rock Mech, June 17-21, 2006.
3. Hill D. Coal pillar design criteria for surface protection. In: Proc Coal 2005 Conf, April 26-28, 2005.
4. Fama M.E., Trueman R., Craig M.S. Two and three dimensional elasto-plastic analysis for coal pillar design and its application to highwall mining. Int J Mech Min Sci Geomech Abstr 1995, 32:215-225.
5. Mark C. The state-of-the-art in coal pillar design. Proc Soc Min Metall Explor 1999, 1-8.
6. Roberts D.P., Van der Merwe J.N., Canbulat I., Sellers E.J., Coetzer S. Development of a method to estimate coal pillar loading. Saf Mines Res Advis Comm Rep 2002, 2001-2065.
7. Zipf K.R. Towards pillar design to prevent collapse of room-and-pillar mines. In: Proc 108th Annu Exhib Meet, Soc Min Metall Explor, 2001.
8. Salamon M.D.G., Munro A.H. A study of the strength of coal pillars. J Sth Afr Inst Min Metal 1967, 68:56-67.
9. Van der Merwe J.N. New pillar strength formula for South African coal. J Sth Afr Inst Min Metal 2003, 6:281-292.
10. Salamon M.D.G., Ozbay M.U., Madden B.J. Life and design of bord-and-pillar workings affected by pillar scaling. J Sth Afr Inst Min Metal 1998, 6:135-145.
11. Galvin J.M., Hebblewhite B.K., Salamon M.D.G. UNSW pillar strength determinations for Australian and South African Conditions. In: Proc 37th US Rock Mech Symp, 1999, pp 63-71.
12. Wagner H. Determination of the complete load deformation characteristics of coal pillars. In: Proc third Int Cong Rock Mech, Denver, 1974, pp 1076-1081.
13. Wagner H. Pillar design in coal mines. J Sth Afr Inst Min Metal 1980, 1:37-45.
14. Heasley K.A. The forgotten denominator, pillar loading. In: Proc Fourth North Amer Rock Mech Symp, Seattle, 31 Jul-3 Aug 2000. Rotterdam: Balkema, pp. 457-464.
15. Salamon M.D.G. Rock mechanics of underground excavations. In: Proc Third Int Cong Rock Mech, Denver, 1974, pp 951-1099.
16. Abel J.F. Soft rock pillars. Int J Min Geol Eng 1988, 6:215-248.
17. Mokgokong P.S., Peng S.S. Investigation of pillar failure in the Emaswati Coal Mine, Swaziland. Min Sci Tech 1991, 12:113-125.