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Fundamental Studies of Coal Mine Bumps in the Eastern United States.

Authors
Iannacchione-AT; Campoli-AA; Oyler-DC
Source
Proc 28th Symp on Rock Mechanics 1987 :1063-1072
Link
NIOSHTIC No.
10005577
Abstract
This paper describes a field study at the Olga Mine in McDowell County, West Virginia, to assess the effects of various mining practices on the control of coal mine bumps. Observations indicated that retreat mining systems that involve sequential extraction along several rows of pillars effectively redirect loads away from the pillar being mined, reducing the occurrence and severity of bumps by spreading the excess stress over a greater number of outby pillars. Other control techniques discussed include the uses of shot firing and auger drilling.
Publication Date
19870101
Document Type
OP;
Fiscal Year
1987
NTIS Accession No.
NTIS Price
Identifying No.
OP 77-87
NIOSH Division
PRC;
Source Name
Proc. 28th Symp. on Rock Mechanics, 1987, PP. 1063-1072
State
WV;
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