Site specific prediction equations for peak acceleration of ground motion due to earthquakes induced by underground mining in Legnica-Głogów Copper District in Poland

• Autorzy: Lasocki S.
• Języki publikacji: EN

Abstrakty

EN

Ground motion database from the region of Żelazny Most tailings pond, the largest in Europe ore-flotation waste repository, is used to identify ground motion prediction equations (GMPE-s) for peak horizontal and peak vertical acceleration. A GMPE model including both geometrical spreading and anelastic damping terms cannot be correctly identified and the model with only spreading term is accepted. The analysis of variance of this model’s residuals with station location as grouping variable indicates that station locations contribute significantly to the observed ground motion variability. Therefore, a site specific GMPE model with relative site amplifications is assessed. Despite short distances among stations, the amplification considerably vary from point to point, up to 1.8 times for the horizontal and 3.5 times for the vertical peak amplitude. The model including site effects enhances GMPE-s fit to observations, explains more than 60% dependent variables variability and correctly accounts for site effects.

Słowa kluczowe

EN

ground motion prediction equation; mining seismicity; relative local amplification; peak acceleration

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2013
• Tom: Vol. 61, no. 5
• Strony: 1130--1155
• Opis fizyczny: Bibliogr. 13 poz.

Twórcy

autor

Lasocki S.

• Institute of Geophysics, Polish Academy of Sciences, Warszawa, Poland

Bibliografia

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• 6. Lasocki, S. (2005), Probabilistic analysis of seismic hazard posed by mining induced events. In: Y. Potvin and M. Hudyma (eds.), Proc. Sixth Int. Symp. on Rockburst and Seismicity in Mines “Controlling Seismic Risk”, 9–11 March 2005, Australia, Australian Centre for Geomechanics, Nedlands, 151–156.
• 7. Lasocki, S. (2009), Key-note lecture: Probabilistic seismic hazard analysis for mining-induced seismicity. In: C. Tang (ed.), Proc. Seventh Int. Symp. on Rockburst and Seismicity in Mines “Controlling Seismic Hazard and Sustainable Development of Deep Mines”, 21–23 August 2009, Dalian, China, Rinton Press, New York, 59–72.
• 8. Lasocki, S., and D. Olszewska (2003), The influence of non-homogeneous local effects on the accuracy of prediction of strong ground motion propagation: An example from the town Polkowice region. In: E. Pilecka (ed.), Proc. 8th Mining Workshop “Natural Hazards in Mining”, Wyd. IGSMiE PAN, Kraków, 113–126 (in Polish).
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• 13. Orlecka-Sikora, B., S. Cesca, S. Lasocki, G. Lizurek, P. Wiejacz, Ł. Rudziński, P. Urban, and M. Kozłowska (2012), Complex source mechanisms of mining-induced seismic events and their exceptional surface impacts: the case from Rudna copper-ore mine in Poland, Geophys. J. Int. (submitted).