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THE PHYSICAL-MECHANICAL CHARACTERISTICS OF COAL SEAMS OF IMMEDIATE FLOOR AND ROOF INFLUENCES ON THE CHOICE OF EXCAVATION SYSTEM IN THE COAL DEPOSITS IN SERBIA

By
Jelena Trivan ,
Jelena Trivan
Contact Jelena Trivan

Faculty of Mining Prijedor, University of Banja Luka, Banja Luka, Bosnia and Herzegovina

Dražena Tošić ,
Dražena Tošić

Faculty of Mining Prijedor, University of Banja Luka, Banja Luka, Bosnia and Herzegovina

Vladimir Todorović
Vladimir Todorović

JP PEU Resavica, Resavica, Serbia

Abstract

The physical and mechanical characteristics of coal seams, immediate floor and roof significantly influence to the choice of systems (the methods and technologies) of coal underground exploitation, and in this paper, their grouping and sorting by importance for the conditions of active underground mines in Serbia was carried out. The research is based on the results of laboratory tests performed in all mines, on the basis of which individual parameters were evaluated. The results of the research proved the complexity of the choice of excavation system in the specific conditions and individual limitations.

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