Preliminary support design for underground mine adit, Artana mine, Kosovo

• Autorzy: Zeqiri Kemajl , Ibishi Gzim , Shabani Musa , Kortnik Joze , Bilir Mehmet Erdinç , Geniş Melih , Yavuz Mahmut , Hetemi Muhamedin , Bacak Gürkan

Identyfikatory

DOI

10.37190/msc212811

• Języki publikacji: EN

Abstrakty

EN

In this paper, preliminary support design of the main underground opening (i.e., mine adit) located at the Artana lead-zinc mine, Kosovo, was examined by employing both conventional and numerical methods for safe underground excavation and design. In order to conduct field studies including discontinuity surveying and sampling for laboratory testing two empirical methods, namely rock mass rating (RMR) and geological strength index (GSI) were employed. For the purpose of determining necessary support units RMR system was utilized. However, these kind of systems can take into account for neither the depth of underground opening nor in situ field stresses. For this reason, empirical design methods (i.e., RMR system) failed to investigate the performance of rock support units; therefore, a 2D finite element analysis program was used to assess the performance of the proposed support systems. This indicated that RMR system might not be applicable for poor and very poor rock masses located in deep environment (i.e., 300 and 400 m). Moreover, this is linked to the fact that the RMR system does not consider in situ stress conditions. This study showed that when empirical methods are supported by numerical analysis, the preliminary support system design will be much more reliable.

Słowa kluczowe

EN

rock mass classification; RMR; rock mass rating; GSI; geological strength index; rock support; numerical method

• Wydawca: Wydział Geoinżynierii, Górnictwa i Geologii, Instytut Górnictwa Politechniki Wrocławskiej
• Czasopismo: Mining Science
• Rocznik: 2021
• Tom: Vol. 28
• Strony: 141--159
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Zeqiri Kemajl

• Department of Mining Engineering, Faculty of Geosciences, Mitrovica Isa Boletini University, Mitrovica, 40000, Kosovo

autor

Ibishi Gzim

• Department of Mining Engineering, Faculty of Geosciences, Mitrovica Isa Boletini University, Mitrovica, 40000, Kosovo

autor

Shabani Musa

• Trepça Joint-Stock Company, Artana mine, Prishtinë, 10000, Kosovo

autor

Kortnik Joze

• Department of Geotechnology, Mining and Environment, Faculty of Natural Sciences and Engineering, University of Ljubljana, Ljubljana, 1000, Slovenia

autor

Bilir Mehmet Erdinç

• Department of Mining Engineering, Faculty of Engineering, Zonguldak Bülent Ecevit University, Zonguldak, 67100, Turkey

autor

Geniş Melih

• Department of Mining Engineering, Faculty of Engineering, Zonguldak Bülent Ecevit University, Zonguldak, 67100, Turkey

autor

Yavuz Mahmut

• Department of Mining Engineering, Faculty of Architecture and Engineering, Eskişehir Osmangazi University, Eskişehir, 26000, Turkey

autor

Hetemi Muhamedin

• Department of Mining Engineering, Faculty of Geosciences, Mitrovica Isa Boletini University, Mitrovica, 40000, Kosovo

autor

Bacak Gürkan

• Department of Mining Engineering, Faculty of Engineering, Zonguldak Bülent Ecevit University, Zonguldak, 67100, Turkey

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