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In-situ Coal Pillar Strength Study.

Authors
Wang-FD; Skelly-WA; Wolgamott-J
Source
For Reference Only At Bureau Libraries :243 pages
Link
NIOSHTIC No.
10000872
Abstract
This report presents the results of two large-scale field coal pillar strength tests, the results of a series of laboratory small- core sample tests, and the correlation between the field and laboratory tests. The concept of applying laboratory coal sample strength data to predict the in situ coal pillar strength appears to be feasible. The deformation property of large pillars can be obtained successfully by testing the coal sample in the laboratory within acceptable accuracy. There are prevailing directional strength and deformation properties in coal pillars along the butt and face cleat system.
Publication Date
19760101
Document Type
CP; Final Contract Report;
Fiscal Year
1976
NTIS Accession No.
NTIS Price
Identifying No.
OFR 107-79
NIOSH Division
DRC;
Source Name
For Reference Only At Bureau Libraries
State
CO;
Performing Organization
Colorado School of Mines
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