Browse TRAIL Inventories

Compression tests of roof-salt slabs supported by potash salt pillars

Measuring changes in pillar strain during pillar recovery :measuring changes in pillar strain during pillar recovery

Stereographic method of determining whether planes of weakness transect pillars

Comparative shortwall and room-and-pillar mining costs

Pillar failure analysis and in situ stress determinations at the Fletcher mine near Bunker, Mo.

A case history of a major rock burst

The Effects of a retreating longwall on a three-entry gate road system

Research study on pillar design for vertical crater retreat (VCR) mining

Strata interactions in multiple-seam mining--two case studies in Pennsylvania

Pillar load transfer associated with multiple-seam mining

Comparative study of pillar load transfer associated with multiple-seam mining

Effects of various longwall chain pillar configurations on gate road stability

Loading characteristics of pillars in multiple-seam mining operations

Performance of a novel bump control pillar extracting technique during room-and-pillar retreat coal mining

Pillar design methods for longwall mining

Longwall retreat of gate road pillars


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