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Field Investigations of Roof and Pillar Stability in Coal Mine Intersections.

Authors
Hanna-K; Harmary-J; Conover-DP
Source
Proc 2nd Conf Ground Control Prob in Illinois Coal Basin Southern Illinois Univ 1985 May; :76-83
Link
NIOSHTIC No.
10005209
Abstract
This report describes a rock mechanics instrumentation program conducted in an underground coal mine in central Illinois. This research project was designed to provide a basic understanding of premining and postmining roof stresses, pillar loading, strata movement, floor heave, and bolt loading at coal mine intersections. The instrumentation plan, a description of the instruments installed in and around a four-way intersection, and the data obtained during the development of the intersection, are presented. Data collected include physical properties of coal and rock, strata lithology, strata movements, in situ stresses, mining-induced stresses, and roof bolt loading. An analysis of observations made and instrumentation results obtained during development and initial monitoring of the intersection is also presented.
Publication Date
19850501
Document Type
OP;
Fiscal Year
1985
NTIS Accession No.
NTIS Price
Identifying No.
OP 73-86
NIOSH Division
DRC;
Source Name
Proc. 2nd Conf. Ground Control Prob. in Illinois Coal Basin, Southern Il Univ., May 1985, PP. 76-83
State
IL;
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