Group winning blasting as a measure to mitigate seismic hazard in a deep copper ore mine, SW Poland
 
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1
Faculty of Geoengineering, Mining and Geology, Wrocław University of Science and Technology, Wroclaw, Poland
2
Graduate of Faculty of Geoengineering, Mining and Geology, Wrocław University of Science and Technology, Wroclaw, Poland
CORRESPONDING AUTHOR
Anna Barbara Gogolewska   

Wrocław University of Science and Technology
 
Mining Science 2020;27:155–164
 
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ABSTRACT
Three deep mines have been excavating the copper ore deposit in south-west Poland for about fifty years. Rock mass tremors and their effects such as rock bursts pose the most dangerous hazard which increases with intensity and depth of exploitation. The permanent growth of seismicity of the deposit necessitated the implementation of preventive activities into mining technology. Temporary and long-term as well as active and passive methods were developed to reduce or eliminate the hazard among which group winning blasting seems to be one of the most successful preventive technique. The paper aimed to assess seismic activity and the effectiveness of active prevention as well as to verify the connection between induced seismicity of rock mass and elements of blasting works. To realize the goal, seismic activity, the number of blasted faces, the number of explosives, and blasting-induced seismicity were analyzed. Moreover, the linear correlation coefficients between the aforementioned parameters and characteristics were calculated. One mining division of the Polkowice-Sieroszowice copper ore mine was investigated over three years during a high rate of seismic hazard and intense exploitation.
 
REFERENCES (6)
1.
BARTLETT S., BURGESS H., DAMJANOVIĆ B., GOWANS R., LATTANZI C., 2013,. Raport tech-niczny dotyczący produkcji miedzi i srebra przez KGHM Polska Miedź S.A. w Legnicko-Głogowskim Okręgu Miedziowym w południowo-zachodniej Polsce (Technical report on the production of copper and silver by KGHM Polish Copper JSC in the Legnica-Głogów Copper District in south-western Poland), KGHM Polska Miedź S.A., Lubin (in Polish).
 
2.
BUTRA J., 2010, Eksploatacja złoża rud miedzi w warunkach zagrożenia tąpaniami i zawałami (Exploi-tation of the copper ore deposit under conditions of rock bursts and roof falls), KGHM Cuprum Sp. z o.o., Wrocław (in Polish).
 
3.
KIJEWSKI P. (Ed.), 2006, Monografia, Zakłady Górnicze Polkowice-Sieroszowice (Monography Pol-kowice-Sieroszowice Mining Plant), KGHM Cuprum Sp. z o.o., Wrocław (in Polish).
 
4.
KŁECZEK Z., 2004, Grupowe strzelanie przodków jako element profilaktyki tąpaniowej w kopalniach rud miedzi LGOM (Group blasting as a part of rock burst prevention in LGOM copper mines), Górnictwo i Geoinżynieria, 28, 153–159 (in Polish).
 
5.
KONOPKO W., 2009, Wieloźródłowość wstrząsów górotworu (Multi-origin of induced tremors), Przegląd Górniczy, 65, 72–75 (in Polish).
 
6.
PIESTRZYŃSKI A. (Ed.), 2007, Monografia KGHM Polska Miedź S.A. (Monography of KGHM Polish Copper JSC), KGHM Cuprum Sp. z o.o., Wrocław (in Polish).
 
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