Strata control aspects of the backfilling of a dyke ahead of a longwall face underneath incomplete pillar extraction at Sigma colliery : van der Merwe, J N Proc 1st Regional Conference for Africa, Rock Mechanics in Africa, Swaziland, 3–4 November 1988P135–142. Publ Marshalltown: SANGORM, 1988

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 117 KB
• Volume: 27
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(90)90480-p