Laws of spreading and operational evaluation procedure for induced seismicity in mines and in mining areas |
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Authors: | D V Yakovlev S V Tsirel’ S N Mulev |
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Abstract: | The scope of the article encompasses features of natural and induced seismicity and the change in frequency plots when natural seismicity turns into natural-and-induced seismicity in mining areas and when induced seismicity becomes natural-and-induced seismicity in mines. It is shown how induced seismicity is connected with the subsidence of overlying strata in mines—seismic process propagates together with the subsidence but seismic activity lowers in the time of maximum subsidence and intensifies when subsidence ceases or decelerates. The authors lay emphasis on estimates of seismic activity in mines and give details of an integrated index F procedure tested in mines and adjusted within the 10 year-long period of application. |
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