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Remedial and Strata Replacement Techniques on Longwall Faces: A State-of-the-art Report.

Authors
Dalzell-RS; Curth-EA
Source
Ch 27 in Proceeds of the 2nd Int'l Conf on Stability in Underground Mng SME PP 473-494 :473-494
Link
NIOSHTIC No.
10011434
Abstract
Following the introduction of shields to the U.S. longwall mining scene and the steady increase in the number of shield faces during recent years, the occurrence of longwall-ground-control-associated accidents has shown a welcome downward trend. But even though the accident experience is favorable, problems exist. New mining systems, however efficient, have run afoul of roof control. Shield faces have suffered extended stoppages because of roof cavities. Therefore, the Bureau of Mines has reviewed foreign remedial techniques to evaluate their potential for domestic application. Such technology includes cribbing, strain-absorbent modules (sam's), inflatables, wire meshing, chemical rock stabilization, synthetic foams, and monolithic fills.
Publication Date
19840101
Document Type
OP;
Fiscal Year
1984
NTIS Accession No.
NTIS Price
Identifying No.
OP 180-92
NIOSH Division
PRC;
Source Name
Ch. 27 in Proceeds of the 2nd Int'l Conf. on Stability in Underground Mng. SME, PP. 473-494
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