ArticleName |
Continuous seismic monitoring at rockburst-hazardous deposits
in the Norilsk area |
ArticleAuthorData |
Author 1: Name & Surname: Nagovitsin Yu. N. Company: Polar Division of PJSC “MMC “NORILSK NICKEL” (Norilsk, Russia) Work Position: Head of Geotechnology Improvement Department, Center for Geodynamic Safety Contacts: phone: +7 (3919) 37-19-78
Author 2: Name & Surname: Kakoshina L. V. Company: Polar Division of PJSC “MMC “NORILSK NICKEL” (Norilsk, Russia) Work Position: Head of Seismic Monitoring Department, Center for Geodynamic Safety
Author 3: Name & Surname: Rodionova E. V. Company: Polar Division of PJSC “MMC “NORILSK NICKEL” (Norilsk, Russia) Work Position: Deputy Head of Seismic Monitoring Department, Center for Geodynamic Safety
Author 4: Name & Surname: Mulev S. N. Company: VNIMI (Saint-Petersburg, Russia) Work Position: Head of Geophysical Research Laboratory
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Abstract |
The article describes the seismic monitoring system deployed in the rockburst-hazardous mines of the Polar Division of Norilsk Nickel and the rockbursting countermeasures aimed at safe copper-nickel ore mining at the Talnakh and Oktyabrsky deposits. The issues of scientific relevance, latter-day organizational, methodical and technical support, efficiency and ranges of further improvement and progression of the monitoring system and rockbursting countermeasures are discussed. In spotlight are the detection, mapping and forecasting of rockburst-hazardous zones for the purpose of selection and advance implementation of rockbursting countermeasures, and a detailed description is devoted to the method of stress relaxation in rock mass by means of destressing drilling. The recommended parameters of the destressing drilling are validated and presented: inclination, spacing and orientation of drill holes relative to the dip and strike of an ore body. The authors emphasize the importance and essentiality of the scientific supervision and technical support of the geodynamic safety system deployed in the Norilsk area mines, and its updating and improvement. |
keywords |
Rockburst-hazardous deposits, seismic monitoring, seismically active zones, underground mines, geodynamic safety, observation network, rock mass stress
state, rockburst hazard prediction, relief drill holes |
References |
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