Relation between benchmark displacement velocity and seismic activity caused by underground longwall exploitation

The following paper addresses the problem of mining-induced surface subsidence by giving consideration to the aspect of displacement velocity and its relation to seismic activities recorded in the area of benchmarks. A series of geodetic measurements were carried out in order to develop an accurate...

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Bibliographic Details
Published in:Acta geodaetica et geophysica 2016-12, Vol.51 (4), p.709-722
Main Author: Duda, Józef
Format: Article
Language:English
Subjects:
Benchmarks
Deformation
Deformation mechanisms
Displacement
Earth and Environmental Science
Earth Sciences
Exploitation
Geodetic measurements
Geophysics/Geodesy
Longwall mining
Mining
Seismic activity
Velocity
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Summary:The following paper addresses the problem of mining-induced surface subsidence by giving consideration to the aspect of displacement velocity and its relation to seismic activities recorded in the area of benchmarks. A series of geodetic measurements were carried out in order to develop an accurate description of the deformation process. The mathematical model of a benchmark displacement process was worked out to estimate the maximum deformation velocity and the time of maximum velocity occurrence. The comparison between the measured and calculated data was presented. The displacement velocity value was compared to the seismic activity recorded during the exploitation period. Four cases were thoroughly investigated as they represent types of relation between the seismic activity and the deformation velocity.
ISSN:2213-5812
2213-5820
DOI:10.1007/s40328-015-0154-0