Rock mass diagnostics based on microseismic monitoring data at Sheregesh deposit

All-Russian Conference on Challenges for Development in Mining Science and Mining Industry devoted to the 85th anniversary of Academician Mikhail Kurlenya

Lobanova, T.V.^1 ; Lindin, G.L.^2 ; Trofimova, O.L.^1 ; Shultaev, S.K.^3 ; Prib, V.V.^3

Siberian State Industrial University, Novokuznetsk, Russia^1

Novokuznetsk Institute-Division, Kemerovo State University, Novokuznetsk, Russia^2

Gornaya Shoria Division, EVRAZRUDA, Sheregesh, Kemerovo Region, Russia^3

关键词: Apparent velocity;    Blasting operations;    Distribution features;    Distribution of seismic events;    Integrated approach;    Rockburst hazards;    Rockburst probabilities;    Stress redistribution;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/53/1/012006/pdf
DOI  :  10.1088/1755-1315/53/1/012006

来源: IOP

【 摘 要 】

Distribution of seismic events in rocks mass around a mineral deposit is studied, it is found that the distribution features conform with the local blasting operations and geology. Epicenters of concentration zones of seismic events are detected in the area of stoping and faulting between two ore locuses. Weakening planes generated under four chronologically ordered shocks are indentified. Occurrence of these planes is characterized, and the stress redistribution after blasting is analyzed. The authors apply an integrated approach to rockburst hazard prediction, including calculus of apparent velocity of migration of seismic events during the first ten minutes after a blast and the rockburst probability assessment.