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Characteristics of mining-induced seismicity associated with roof falls and roof caving events.

Authors
Iannacchione-AT; Esterhuizen-GS; Bajpayee-TS; Swanson-PL; Chapman-MC
Source
Alaska Rocks 2005, Proceedings of the 40th U.S. Rock Mechanics Symposium, Anchorage, Alaska, June 25-29, 2005. Alexandria, VA: American Rock Mechanics Association, Paper No.: 05-678, 2005 Jun; :1-10
NIOSHTIC No.
20028125
Abstract
The National Institute for Occupational Safety and Health (NIOSH) evaluated microseismic activity from three field sites to compare and contrast the characteristics of microseismic emissions from very different geologic, stress, and mining environments. Recently, NIOSH has embarked on a research program to evaluate the use of microseismic monitoring information to identify roof fall failure processes and to assess its potential to warn of unstable roof conditions. Large roof instabilities, such as roof falls and certain roof caving events, have proven difficult to anticipate, representing an increased risk to miners who work in these inherently hazardous areas. When local failure processes are better understood, appropriate control measures can be engineered to mitigate these hazards. This study used microseismic emissions to help identify three local rock failure processes. It was also shown that analysis of microseismic emissions can aid in assessing the degree of instability associated with these local rock failure processes.
Keywords
Underground-mining; Safety-research; Injuries; Mining-industry; Field-Study; Hazards; Longwall-mining; Coal-mining; Rock-falls; Coal-miners; Miners; Mine-workers; Underground-miners; Room-and-pillar-mining; Stone-mines; Geology; Geophysics; Limestone; Ground-control
Contact
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
Publication Date
20050625
Document Type
Conference/Symposia Proceedings
Editors
Chen-G; Huang-S; Zhou-W; Tinucci-J
Fiscal Year
2005
NTIS Accession No.
NTIS Price
NIOSH Division
PRL; SRL
Priority Area
Disease and Injury: Traumatic Injuries
Source Name
Alaska Rocks 2005, Proceedings of the 40th U.S. Rock Mechanics Symposium, Anchorage, Alaska, June 25-29, 2005
State
PA; UT; AK; WA
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