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A platform for research: civil engineering, architecture and urbanism
Use of yieldable steel arches and backfilling to overcome such problems as bad roof conditions, extensive faulting, deep cover and bounce hazard to Sunnyside, Utah mine; yieldable arch as used at Sunnyside is of 3 piece construction consisting of 2 leg segments and one cap segment; other advantages of yieldable arches include possibility of reopening old entries, protection against high ribs, versatility of mining plans, improved ventilation, escapeway security, and equipment recovery.
Use of yieldable steel arches and backfilling to overcome such problems as bad roof conditions, extensive faulting, deep cover and bounce hazard to Sunnyside, Utah mine; yieldable arch as used at Sunnyside is of 3 piece construction consisting of 2 leg segments and one cap segment; other advantages of yieldable arches include possibility of reopening old entries, protection against high ribs, versatility of mining plans, improved ventilation, escapeway security, and equipment recovery.
Ground control development
Rocky Mountain Coal Min Inst -- Proc
Peperakis, J. (author)
1961
5 pages
Article (Journal)
English
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| Wiley | 2012
Ground control - Ground movements and structural damage assessments
Online Contents | 2008
Ground control: Ground movements and structural damage assessments
British Library Online Contents | 2008