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Keywords: pillar extraction
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Proceedings Papers
Observations At a Pillar Failure Site At Sigma Colliery
Available to Purchase
Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-038
... metals & mining coal pillar extraction maingate reservoir geomechanics pillar failure site seam lower seam pillar lower seam pillar visual observation Reservoir Characterization pillar failure seam pillar tailgate Sigma Colliery pillar panel bord bottom seam pillar...
Proceedings Papers
Roof Behaviour In Roadways And Intersections of South African Collieries
Available to Purchase
Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-039
... reservoir simulation roof deflection extraction successive mining step initial roof deflection adjacent pillar longterm behaviour intersection roadway metals & mining colliery numerical simulation deflection closure strength variation south african colliery pillar extraction...
