Effect of vibro-impact exposure on intensity of geodynamic events in rock mass

Geodynamics and Stress State of the Earth's Interior 2017

Eremenko, A.A.^1 ; Timonin, V.V.^1 ; Bespalko, A.A.^2 ; Karpov, V.N.^1 ; Shtirts, V.A.^3

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia^1

Institute of Nondestructive Testing, Tomsk National Research Polytechnic University, Russia^2

Tashtagol Division, EVRAZRUDA, Russia^3

关键词: Acoustic signals;    Amplitude dispersion;    Different frequency;    Electrical resistances;    Electrometric method;    Enclosing rocks;    Spectral components;    Vibrational impact;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/134/1/012016/pdf
DOI  :  10.1088/1755-1315/134/1/012016

来源: IOP

【 摘 要 】

Effect of vibrational impacts on rockburst-hazardous iron ore body and enclosing rocks is experimentally studied using the microseismic, electromagnetic, acoustic and electrometric methods. The nature of the change in the intensity of electrical resistance, and in electromagnetic and acoustic signals in a series of impacts is determined. The variation in the amplitude dispersion of spectral components of signals at different frequencies is described.