Geophysical survey of asbestos pit wall

The article describes the use of geophysical methods to obtain the data on physical properties of rocks in pit wall rock mass toward technological optimization of drilling and blasting operations. The case-study of 2D and 3D electrical resistivity tomography, areal electrical geophysics and seismic exploration is presented. The data are obtained from field measurements of the natural electrical resistances in pit wall rock mass, induced polarizations equivalent to the frequency dispersion of rock conductivity as well as P-wave and S-wave velocities. Then, the obtained values are processed and interpreted using digital filtering and computer modeling. The strength of rock mass enclosing open pit chrysotile asbestos mine is calculated. The modern digital methods and algorithms commonly used worldwide are chosen for processing and interpretation of the obtained values. The physical properties of rocks are estimated from the comparison of a priori geological data with the values of the specific electrical resistance and elastic wave velocities. On this basis, The Young modulus values are calculated, which characterize the pit wall rock mass strength.

Keywords: geophysical survey, engineering geophysics, 3D electrical resistivity tomography, 2D electrical resistivity tomography, electrical geophysics, induced polarization, seismic exploration, seismic refraction method, seismic tomography, asbestos, open pit mine, drilling and blasting.
For citation:

Zuev P. I., Grigoriev D. V., Vedernikov A. S. Geophysical survey of asbestos pit wall. MIAB. Mining Inf. Anal. Bull. 2021;(5—1):131—141.[In Russ]. DOI: 10.25018/0236_1493_2021_51_0_131.

 

Acknowledgements:

The study was carried out under State Contract No. 075-00581-19-00, Topic No. 0405-2019-0007.

Issue number: 5
Year: 2021
Page number: 131-141
ISBN: 0236-1493
UDK: 622.012.3:550.834
DOI: 10.25018/0236_1493_2021_51_0_131
Article receipt date: 16.12.2020
Date of review receipt: 26.03.2021
Date of the editorial board′s decision on the article′s publishing: 10.04.2021
About authors:

Zuev P. I.1, researcher, Institute of mining, zuev@igduran.ru;
Grigoriev D. V.1, researcher, Institute of mining, danilging@gmail.com;
Vedernikov A. S., researcher, avedernikov@igduran.ru;
1 Institute of Mining of Ural branch of RAS, Ekaterinburg, Russia.

 

For contacts:
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