Unknown
In:
Geofizycznych badan w kopalniach, Mogilany, 17 - 19 X 1977 = Some geophysical problems in mines
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Publications of the Institute of Geophysics, Polish Academy of Sciences : M, Miscellanea ; 3 = 134
Publication Date:
2020-02-12
Description:
To detect and to locate the frequently occurring rockbursts within the mining area at Grangesberg, Sweden, the mining company has installed a local network of geophones. Mathematical technique is presented for hypocentre determination assuming a constant velocity model and a three-dimensional network of geophones with high-speed recording. Two sets of input data are feasible: 1) relative P arrival times; 2) S minus P arrival times. The former set requires readings from at least five geophones; for the latter readings from four geophones are sufficient. Factors influencing the resulting location accuracy are studied in various examples. General conclusions and recommendations are given.-Author
Keywords:
550 - Earth sciences
Type:
info:eu-repo/semantics/bookPart
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