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Details

Moving Longwall Shield Supports at York Canyon Coal Mine, Raton, N. Mex.

PB271888

Publication Date	1977
Personal Author	Oitto, R. H.; Wisecarver, D. W.; Sikes, W. E.
Page Count	25
Abstract	The U.S. Bureau of Mines and a mining company are cooperatively demonstrating the shield type roof support in the longwall mining of a 10-1/2-foot coalbed in New Mexico. As part of the demonstration, the shield supports have been successfully and safely moved from a completed longwall face to a new longwall face. When these shield supports were moved in 1976 they were the largest and heaviest longwall support system in use in United States coal mines. The shield supports, preparations for moving them, the actual move, and installation at the new face are discussed.
Keywords	Caving mining Underground supporting Roofs Shields(Tunneling) Motion New Mexico York Canyon Coal Mine
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	Bureau Of Mines, Denver, Colo. Denver Mining Research Center.
Document Type	Technical Report
Title Note	Information circular 1977.
NTIS Issue Number	197724

Moving Longwall Shield Supports at York Canyon Coal Mine, Raton, N. Mex.

Moving Longwall Shield Supports at York Canyon Coal Mine, Raton, N. Mex.
PB271888

Publication Date	1977
Personal Author	Oitto, R. H.; Wisecarver, D. W.; Sikes, W. E.
Page Count	25
Abstract	The U.S. Bureau of Mines and a mining company are cooperatively demonstrating the shield type roof support in the longwall mining of a 10-1/2-foot coalbed in New Mexico. As part of the demonstration, the shield supports have been successfully and safely moved from a completed longwall face to a new longwall face. When these shield supports were moved in 1976 they were the largest and heaviest longwall support system in use in United States coal mines. The shield supports, preparations for moving them, the actual move, and installation at the new face are discussed.
Keywords	Caving mining Underground supporting Roofs Shields(Tunneling) Motion New Mexico York Canyon Coal Mine
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	Bureau Of Mines, Denver, Colo. Denver Mining Research Center.
Document Type	Technical Report
Title Note	Information circular 1977.
NTIS Issue Number	197724