Abstract
The authors assess blasting-induced seismic impact on underground openings in Magnezitovaya Mine, determine seismic stability and adjacent rocks and calculate safe distance of blasting based on the criterion of allowable seismic loads. The blasting impact testing was carried out using seismic recorders Uran and Minimate Plus with three-component seismic receivers. It is recommended on setting limiting mass of explosive per delay interval in underground blasting.
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