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Eastern Coal Mine Geomechanics. Proceedings: Bureau of Mines Technology Transfer Seminar, Pittsburgh, Pennsylvania, November 19, 1986.

Authors
Anonymous
Source
BoM 1987 :89 pages
Link
NIOSHTIC No.
10005716
Abstract
The Bureau of Mines is establishing design criteria for effective roof support systems and is developing technology to improve mine planning and design. Geologic studies, surface and underground mine monitoring, and laboratory evaluations were conducted. The seven papers in this proceedings informaion circular present results of several investigations. Addressed are problems existing in both longwall and multiple-seam mines. Discussions include the effect of dewatering at a longwall mine site in the Pittsburgh coal seam and the effect of chain pillars on subsidence. Other results are measurement and characterization of longwall rock mass movement and an integrated design for stability in multiple-seam mining.
Publication Date
19870101
Document Type
IH; Information Circular;
Fiscal Year
1987
NTIS Accession No.
NTIS Price
Identifying No.
IC 9137
NIOSH Division
PRC;
Source Name
Bureau of Mines
State
PA;
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