Conference Proceedings
Support in Pillar Extraction, Illawarra
Conference Proceedings
Support in Pillar Extraction, Illawarra
Roof Support of Square Pillar Extraction Systems
General design of pillars to ensure a continuing roof support during ex- traction is discussed. Practical problems associated with pillar extraction are Outlined.
Contributor(s):
C Harrison
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- Published: 1974
- PDF Size: 0.402 Mb.
- Unique ID: P197401007