New pillar strength formula for South African coal

Journal of The South African Institute of Mining and Metallurgy

Volumn 103, Issue 5, 2003, Pages 281-292

  Van der Merwe, J N ^a  

^a UNIVERSITY OF PRETORIA   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

COAL PILLARS; PILLAR DESIGN; STRENGTH CONSTANT;

COMPRESSIVE STRENGTH; COSTS; DATABASE SYSTEMS; PILLAR EXTRACTION; RESEARCH LABORATORIES; STRUCTURAL DESIGN;

COAL MINES;

EID: 2542478170     PISSN: 0038223X     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (9)

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2. BIENIAWSKI, Z.T. A method revisited: coal pillar strength formula based on field investigations. Proc. Workshop on coal pillar mechanics and design. US Bureau of Mines IC 9315. 1992.
3. GALVIN, J.M., HEBBLEWHITE, B.K., and SALAMON, M.D.G. University of New South Wales Coal Pillar Strength Determinations for Australian and South African Mining Conditions. Proc. Second Intnl. Workshop Coal Pillar Mech. And Design. NIOSH Inf Circ. 9448. 1999.
4. HARR, M.E. Reliability-Based Design In Civil Engineering. McGraw-Hill Book Company 1987. pp. 130-134.
5. MADDEN, B.J. A re-assessment of coal pillar design. J. S. Afr. Inst. Min. Metall. January 1991.
6. SALAMON, M.D.G. and MUNRO, A.H. A study of the strength of coal pillars. J. S. Afr. Inst. Min. Metall. September 1967.
7. SALAMON, M.D.G. Strength and stability of coal Pillars. Proc. Workshop on Coal pillar mechanics and design. US Bureau of Mines IC 9315. 1992.
8. VAN DER MERWE, J.N. Revised strength factor for coal in the Vaal Basin. J. S. Afr. Inst. Min. Metall. March 1993.
9. VAN DER MERWE, J.N. A Method to Group Coal in Terms of Strength Using Laboratory Tests. Research Report to Coaltech 2020, December 2001.