共 50 条
- [21] PILLAR DESIGN IN COAL-MINES JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 1980, 80 (01): : 37 - 45
- [24] South African coal pillar database JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 2006, 106 (02): : 115 - 128
- [25] A REASSESSMENT OF COAL-PILLAR DESIGN JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 1991, 91 (01): : 27 - 37
- [26] Pillar deformation in a bituminous coal mine TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1938, 130 : 333 - 350
- [27] Pillar drawing in thick coal seams TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1922, 66 : 415 - 421