G. J. Chekan

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Effects of abandoned multiple seam workings on a longwall in Virginia

by G. J. Chekan First published in 1989 — 2 editions

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Interactions between multiple seam longwall and room-and-pillar operations: a cse study in Boone County, WV

by G. J. Chekan First published in 1990 — 2 editions

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Analysis and design considerations for superimposed longwall gate roads

by G. J. Chekan First published in 1992 — 1 edition

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Design of bulkheads for controlling water in underground mines

by G. J. Chekan First published in 1985 — 1 edition
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Design practices for multiple-seam longwall mines

by G. J. Chekan First published in 1993 — 1 edition

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Investigation of longwall gateroad roof support characteristics at Powhatan No. 4 Mine: instrumentation plan

by G. J. Chekan First published in 1982 — 1 edition

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Investigation of longwall gateroad roof support characteristics of Powhatan no. 4 mine : instrumentation plan

by G. J. Chekan First published in 1982 — 1 edition

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Loading characteristics of pillars in multiple-seam mining operations

by G. J. Chekan First published in 1988 — 1 edition

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

by G. J. Chekan First published in 1986 — 1 edition

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Design Practices for Multiple-Seam Room-And-Pillar Mines (Information Circular)

by G. J. Chekan and Jeffrey M. Listak First published in 1994 — 1 edition

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OLID: OL712494A

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Created April 1, 2008
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August 27, 2008	Edited by RenameBot	fix author name
April 1, 2008	Created by an anonymous user	initial import

G. J. Chekan

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