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Microseismic activity associated with a deep longwall mine.

Authors
Heasley-KA; Ellenberger-JL; Jeran-PW
Source
2002 SME Annual Meeting, Feb 25-27, Phoenix, Arizona, Preprint 02-175. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2002 Feb; :1-5
NIOSHTIC No.
20023186
Abstract
A deep longwall coal mine was instrumented with a three-dimensional microseismic system in order to help determine the exact strata mechanics associated with the rock failure, redistribution of stress and the associated gob formation from the longwall. Overall, 5,000 well calibrated seismic events were recorded during the mining of the panel. Analysis of these events showed a close correlation between the seismic activity and advance rate, and that the majority of the recorded seismic activity occurs in the immediate area of the advancing longwall face.
Keywords
Mining-industry; Mining-equipment; Miners; Rock-mechanics; Stress; Underground-mining; Underground-miners
Publication Date
20020225
Document Type
Conference/Symposia Proceedings
Fiscal Year
2002
NTIS Accession No.
NTIS Price
NIOSH Division
PRL
Source Name
2002 SME Annual Meeting, Feb 25-27, Phoenix, Arizona, Preprint 02-175
State
PA; AZ
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