| Issue |
E3S Web Conf.
Volume 192, 2020
VIII International Scientific Conference “Problems of Complex Development of Georesources” (PCDG 2020)
|
|
|---|---|---|
| Article Number | 01022 | |
| Number of page(s) | 7 | |
| Section | Geotechnical and Geomechanical Problems of Development of Mineral Resources | |
| DOI | https://doi.org/10.1051/e3sconf/202019201022 | |
| Published online | 30 September 2020 | |
Deformation waves from distant earthquakes as a trigger mechanism for activating geodynamic processes in rock mass
1
Mining Institute FEB RAS, 51 Turgenev st., Khabarovsk, 680000, Russia;
2
Institute of Geomechanics and Subsoil Development of the National Academy of Sciences of the Kyrgyz Republic, Bishkek, Kyrgyzstan
* Main author: lygovoy@dst.khv.ru
The results of experimental studies with a laser strainmeter and a multichannel automated geoacoustic rock pressure control system “PROGNOZ ADS” aimed at identifying the nature of the effect of deformation waves from distant earthquakes on the geodynamic activity of the monitored rock mass are presented. The quantitative and energy characteristics of geoacoustic emission before and after the arrival of deformation waves in the controlled rock mass are analyzed. The analysis performed indicates a trigger mechanism of the influence of a distant earthquake on the geodynamic activity of the rock mass. It is noted that the direction of arrival of the deformation wave is an essential factor in the intensification of geodynamic activity in the rock mass. The experiments also revealed the characteristics of rock burst precursors when registering deformation waves in the low-frequency range.
Key words: Anthropogenic seismicity / geomechanical monitoring / laser strainmeter / stress-strain state / deformation waves / trigger mechanism
© The Authors, published by EDP Sciences, 2020
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