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Mining Publication: Temporal Imaging of Mine-Induced Stress Change Using Seismic Tomography
Keywords: Geophones Horizontal stress Seismic monitoring
Original creation date: January 1997
Authors: MJ Friedel, DF Scott, TJ Williams
Peer Reviewed Journal Article - January 1997
Download PDF Document (1.40 MB)
NIOSHTIC2 Number: 20025394
Eng Geol 1997 Jan 46(2):131-141
In an effort aimed at monitoring mining-induced stress changes that may influence ground failure, the U.S. Bureau of Mines conducted a series of active 3-D seismic tomographic surveys at the Homestake (Lead, South Dakota) and Lucky Friday (Mullan, Idaho) mines. Existing rock bolts were used to mount geophones and as strike points for introducing seismic energy using a 3.6 kg sledge hammer. Travel time measurements were recorded spanning up to 160 m between drifts at several levels. The tomographic uncertainty was minimized by computing iso-velocity surfaces of constant probability based on statistics from multiple reconstructions and a threshold criteria. Periodic imaging using tomographic velocity surfaces demonstrated that temporal and spatial changes in the local stress field occurred in response to ground failure and stope advancement at a told and silver mine, respectively.
Image of publication Temporal Imaging of Mine-Induced Stress Change Using Seismic TomographyPeer Reviewed Journal Article - January 1997
Download PDF Document (1.40 MB)
NIOSHTIC2 Number: 20025394
Eng Geol 1997 Jan 46(2):131-141
See Also
Advance and Relieve Mining: A Method to Mitigate the Effects of High Horizontal Stress on the Mine Roof
Detecting Strata Fracturing and Roof Failures from a Borehole Based Microseismic System
Horizontal Stress and Longwall Headgate Ground Control
Local Earthquake Tomography for Imaging Mining-Induced Changes Within the Overburden above a Longwall Mine
The Relationship of Roof Movement and Strata-Induced Microseismic Emissions to Roof Falls
Safer Mine Layouts for Underground Stone Mines Subjected to Excessive Levels of Horizontal Stress
Seismic Detection of Trapped Miners Using In-Mine Geophones
Three-Dimensional Time-Lapse Velocity Tomography of an Underground Longwall Panel
Time-Lapse Tomography of a Longwall Panel: A Comparison of Location Schemes
Variation of Horizontal Stresses and Strains in Mines in Bedded Deposits in the Eastern and Midwestern United States
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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