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1
Evaluation of water-jet-assisted cutting capability on longwall shearers
Washington, D.C. (2401 E St., N.W., Washington 20401) : U.S. Dept. of the Interior, Bureau of Mines, 1989Format: Government Document Book
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2
Assessment of experimental longwall recovery rooms for increasing productivity and expediting equipment removal operations
[Washington, D.C. (2401 E St., NW, Miss. #9800, Washington, 20241)] : [U.S. Dept. of the Interior, Bureau of Mines], 1989Format: Government Document Book
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3
Analysis and design considerations for superimposed longwall gate roads
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1992Format: Government Document Book
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4
Evaluate fundamental approaches to longwall dust control.
[Pittsburgh, Pa.] : Bureau of Mines, U.S. Dept. of the Interior, 1990Format: Government Document Book
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5
The Effects of a retreating longwall on a three-entry gate road system
Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1985Format: Government Document Book
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6
Stiffness characteristics of longwall shields
Pgh. [i.e. Pittsburgh], Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1988Format: Government Document Book
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7
Influence of subjacent gob on longwall development mining in the Upper Kittanning Coalbed of south-central Pennsylvania
Washington, D.C. : Bureau of Mines, U.S. Dept. of the Interior, 1992Format: Government Document Book
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8
Dust control on longwall shearers using water-jet-assisted cutting
Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1986Format: Government Document Book
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9
New technology for longwall ground control : proceedings, U.S. Bureau of Mines Technology Transfer Seminar
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines : For sale by the Supt. of Docs., U.S. G.P.O., 1994Format: Government Document Book
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10
Rock mechanics investigations at the Lucky Friday Mine.
[Washington, D.C.] :; [Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1992Format: Government Document Book
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11
Behavior of simulated longwall gob material
Washington, D.C. (810 7th St., N.W., MS#9800, Washington 20241-0001) :; Washington, D.C. (810 7th St., N.W., MS#9800, Washington 20241-0001) : U.S. Dept. of the Interior, Bureau of Mines, 1993Format: Government Document Book
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12
Pillar design methods for longwall mining
Washington, D.C. (2401 E St., N.W., MS #9800, Washington 20241) : U.S. Dept. of the Interior, Bureau of Mines, 1990Format: Government Document Book
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13
Surface subsidence over longwall panels in the western United States : final results at the Deer Creek Mine, Utah
Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1988Format: Government Document Book
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14
Effects of abandoned multiple seam workings on a longwall in Virginia
[Washington, D.C. (2401 E St., NW, Miss. #9800, Washington, 20241)] : [U.S. Dept. of the Interior, Bureau of Mines], 1989Format: Government Document Book
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15
Critical-load studies of a shield support
Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1987Format: Government Document Book
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16
Enhanced gob gas recovery.
[Washington, D.C.] :; [Washington, D.C.] : [U.S. Environmental Protection Agency], 2000Format: Government Document Electronic eBook -
17
Comparisons between cross-measure boreholes and surface gob holes
Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1986Format: Government Document Book
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18
Longwall shearer performance using water-jet-assisted cutting
Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1986Format: Government Document Book
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19
Dust control on longwall shearers using water-jet-assisted cutting
Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1986Format: Book
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20
Horizontal and vertical load transferring mechanisms in longwall roof supports
Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1988Format: Government Document Book