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Field test of an alternative longwall gate road design.

Authors
Cox-RM; Vandergrift-TL; McDonnell-JP
Source
Denver, CO: U.S. Department of the Interior, Bureau of Mines, RI 9510, 1994 Jan; :1-30
Link
NIOSHTIC No.
10012386
Abstract
The field test has confirmed the validity of the new alternative gate road system under actual mining conditions. Field observations indicated that the alternative gate road design significantly improved tailgate roadway stability under existing ground conditions. Field measurements support the results of the model analyses that suggested that reversing the gate road pillar arrangement would shift the higher abutment loads toward the gob of the previous panel and away from the tailgate of the current panel, thus reducing ground pressures and improving tailgate ground conditions.
Keywords
Field-tests; Coal-mining; Strata-control; Mathematical-models; Caving-mining
Publication Date
19940101
Document Type
Report of Investigations
Fiscal Year
1994
NTIS Accession No.
PB94-214533
NTIS Price
A03
Identifying No.
RI-9510
NIOSH Division
DRC
Source Name
Denver, CO: U.S. Department of the Interior, Bureau of Mines, RI 9510
State
CO
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