Design, support considerations and problems experienced during the extraction of shaft pillars of two unlined, moderately deep shafts in the Rand mines group : Noble, K R Proc Symposium on Rock Instability Problems in Mine Shafts, Potchefstroom, 10 May 1990P81–85. Publ Marshalltown: SANGORM, 1990

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 111 KB
• Volume: 28
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/0148-9062(91)91083-4