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The influence of stream valleys on coal mine ground control.

Authors
Hill-JL III
Source
Proc 7th Int'l Conf on Ground Control in Mining 1988 Jan; :247-258
Link
NIOSHTIC No.
10006148
Abstract
Over 50 mines of the Appalachian and Illinois Basins are presently experiencing poor ground conditions believed to be caused by overlying stream valleys. This paper describes research being conducted by the Bureau of Mines into the causes of this problem with the aim of developing a predictive method for determining the safe limits of mining beneath stream valleys. In addition, the factors that control instability in these regions will be analyzed to provide design guidelines for adjusting support requirements.
Publication Date
19880101
Document Type
OP; Conference/Symposia Proceedings
Fiscal Year
1988
NTIS Accession No.
NTIS Price
Identifying No.
OP 101-88
NIOSH Division
PRC
Source Name
Proc. 7th Int'l Conf. on Ground Control in Mining
State
IL; PA
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