Study of seismic activity during mining of a rockburst hazardous deposit with counter fronts

The article presents the results of a study of peculiarities of rock mass failure during the development of a rockburst hazardous deposit by counter fronts on the example of one of the Khibiny deposits. In order to identify the peculiarities of the seismic process development at different stages of the deposit development, changes in seismic activity and stress field have been analysed. The seismic process has been studied on the basis of a multistage model of solid fracture and a modified concentration criterion (or the parameter of convergence of seismic events), based on which seismic events have been clustered. The approach applied takes into account the characteristics of seismic events in the time-coordinate-energy space, which makes it possible to determine the peculiarities of interaction between different-scale events. The seismic data have been compared with the calculated characteristics of the active stress field during the periods between bulk blasts in the junction sections of the two mining fronts. The relevance of the research is due to the fact that the approach used allows studying the features of energy exchange in the rock mass on the basis of data on the released seismic energy and data on the redistribution of stresses on the example of a separate section of the rock mass.

Zhuravleva O. G., Zhukova S. A., Avetisian I. M., Dmitriev S. V. Study of seismic activity during mining of a rockburst hazardous deposit with counter fronts. MIAB. Mining Inf. Anal. Bull. 2022;(12-1):143-154. [In Russ]. DOI: 10.25018/0236_1493_2022_121_0_143.

O.G. Zhuravleva¹, Cand. Sci. (Eng.), Senior Researcher, e-mail: o.zhuravleva@ksc.ru, ORCID ID: 0000-0002-8986-9559,
S.A. Zhukova¹, Cand. Sci. (Eng.), Senior Researcher, e-mail: svetlana.zhukowa@yandex.ru, ORCID ID: 0000-0003-0769-6584,
I.M. Avetisian¹, Cand. Sci. (Eng.), Senior Researcher, e-mail: i.avetisian@ksc.ru, ORCID ID: 0000-0002-4569-9594,
S.V. Dmitriev¹, Researcher, e-mail: s.dmitriev@ksc.ru, ORCID ID: 0000-0003-0422-5699,
¹ Mining Institute, Kola Scientific Centre of Russian Academy of Sciences, 184209, Apatity, Russia.

O.G. Zhuravleva, e-mail: o.zhuravleva@ksc.ru.

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