- Tytuł:
- The application of seismic interferometry for estimating a 1D S-wave velocity model with the use of mining induced seismicity
- Autorzy:
-
Czarny, R.
Pilecki, Z.
Drzewińska, D. - Powiązania:
- https://bibliotekanauki.pl/articles/92182.pdf
- Data publikacji:
- 2018
- Wydawca:
- Główny Instytut Górnictwa
- Tematy:
-
seismic interferometry
induced seismicity
Rayleigh surface wave
S-wave velocity
mining terrain
interferometria sejsmiczna
sejsmiczność indukowana
fala powierzchniowa Rayleigha
prędkość fali S
teren górniczy - Opis:
- The main objective of this paper is to present the usefulness of the seismic interferometry method to determine the S-wave velocity model of the rock mass affected by exploitation in the KGHM Rudna copper ore mine. The research aim was achieved on the basis of seismic data, acquired from seismograms, of 10 strong seismic events of magnitude greater than 2.6. They were recorded by a pair of seismometers deployed on mining terrain. In the first stage, the Rayleigh wave between seismometers was estimated. Then, the group velocity dispersion curves of fundamental and first higher modes were identified. Finally, inversion of the dispersion curves to a 1D S-wave velocity model up to 500m in depth was obtained. The velocity model was determined for the part of the rock mass partially affected by mining. The results confirm similar rock mass structure and velocities of the subsurface layers as those obtained by the archival 3D model. In both models, a high degree of correlation in the boundary location between the overburden of the Cenozoic formations and the bedrock of the Triassic formations was observed. The applied methodology can be used to estimate the S-wave velocity model in other mining regions characterized by strong seismicity.
- Źródło:
-
Journal of Sustainable Mining; 2018, 17, 4; 209-214
2300-1364
2300-3960 - Pojawia się w:
- Journal of Sustainable Mining
- Dostawca treści:
- Biblioteka Nauki
Artykuł