Report of Investigations 9151: Cost Comparison of Gob Hole and Cross-Measure Borehole Systems to Control Methane in Gobs
Public Domain
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1988/01/01
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English
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Journal Article:MISSING
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Description:The capital investment and operating costs of two methane-control systems used during longwall mining operations are compared in this Bureau of Mines report. Costs are given for a surface gob hole drainage system and an underground cross-measure borehole drainage system to control methane gas in gobs in four coal mining areas- central Pennsylvania, northern West Virginia, southern Virginia, and northern Alabama. Present-worth analysis is used to determine the more cost-effective alternative in each location. The alternatives have equal lives and provide the same service based on a minimum rate of return of 15 pct. In central Pennsylvania and northern west Virginia, the gob hole system is more cost effective than the cross- measure system, by 10 and 18 pct, respectively. In southern Virginia and northern Alabama; the cross measure system is more cost effective, by 29 and 38 pct, respectively. Costs for other locations must be developed on a case-by-case basis. [Description provided by NIOSH]
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Source:MISSING :23 pages ; MISSING :23 pages
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Pages in Document:28 pdf pages
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NIOSHTIC Number:nn:10005917
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Federal Fiscal Year:1988
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Peer Reviewed:False
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Main Document Checksum:urn:sha-512:0d6b12ead1d271771fbcc4ff60cd854f067bef72a8f60845d1870c3ed4acda7224ea01ce8c076e82d3bb42decbec4864eb452e8e612abb00bde96c96b75edc7d
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English
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