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New technique vacuums gob gas. Cross-measure boreholes controlled longwall gob gas at a Bethlehem mine.

Authors
Campoli-AA; Cervik-J; Burns-F
Source
Coal Min Process 1983 Mar; 20:48-51
Link
NIOSHTIC No.
10003181
Abstract
The cross-measure borehole technique is being developed jointly by the Bureau of Mines and Bethlehem Mines Corp. as an alternative to current U.S. longwall methane control techniques. Small-diameter inclined boreholes are drilled from underground locations into roof strata that will be fractured when the longwall panel is removed. Methane contained in the fractured strata is collected in the cross- measure boreholes and drawn through an underground pipeline to a central surface borehole by a vacuum pump.
Keywords
Mining-industry; Methane-control; Methane-drainage; Underground-mining; Coal-mining; Engineering-controls; Control-technology
CODEN
CMPRBV
Publication Date
19830301
Document Type
OP; Journal Article
Fiscal Year
1983
NTIS Accession No.
NTIS Price
Identifying No.
OP 75-83
ISSN
0009-9961
NIOSH Division
PRC
Source Name
Coal Mining & Processing
State
PA
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