Rudarski radovi br 4 2011 - Institut za rudarstvo i metalurgiju Bor

4. CONCLUSION<br />
Calculation of the obtained parameter<br />
shows that the capacity pillar stope is directly<br />
dependent on the thickness of coal<br />
seams which are mined as well as the time<br />
of performing the work operations of<br />
blasting the over stope coal and loading on<br />
a transport conveyor.<br />
In relation to the existing used method<br />
of pillar mining, this research has provided<br />
the obtaining of over stope with<br />
DDB separated by partial blasting charging,<br />
resulting in a significant increase in<br />
capacity and increase the safety of employees.<br />
Further research has to be directed<br />
to introduction the mechanized<br />
loading with mobile machines, what will<br />
further affect the increase in production<br />
and productivity and productivity of pillar<br />
mining.<br />
Regarding to the natural-geological<br />
conditions in the majority of coal deposits<br />
of predisposed to the underground mining<br />
system, it is concluded that the pillar mining<br />
will further exist so for improvement<br />
of financial performance of the mine, it is<br />
necessary to continue with further studies<br />
in the application of proposed solutions.<br />
REFERENCES<br />
[1] Ivković M., Miljanović J., Ivković<br />
Lj., Tendency of development the<br />
non-traditional system of<br />
underground mining of coal seams,<br />
Scientific-expert Symposium<br />
"Energetika Srpske 98" with<br />
international participation, Vrućica Spa<br />
(pp. 809-813), 1998<br />
[2] Ivković M., Miljanović J., Gagić D.,<br />
Selection of mining method in the coal<br />
deposits with limited reserves,<br />
Scientific-expert Symposium "Energetika<br />
Srpske 98" with international<br />
participation, Vrućica Spa (pp. 836-<br />
841), 1998<br />
[3] Ivković M., Miljanović J., Bijelić V.,<br />
Selection of mining system for a part<br />
of the coal deposit "Ramići" Banja<br />
Luka, provided for underground<br />
mining, Scientific-expert Symposium<br />
with international participation<br />
"Possible aspects of exploitation, coal<br />
preparation and combustion of the<br />
Republic of Serbian", Vrućica Spa<br />
(pp. 369-375), 1999<br />
[4] Ivković M., Marić R., Miljanović J.,<br />
Directions of restructuring the<br />
underground coal mines with special<br />
reference to the activation of new<br />
deposits, Scientific symposium with<br />
international participation, Energy of<br />
Yugoslavia ENYU 2000, Zlatibor,<br />
2000 (pp. 350-354)<br />
[5] Miljanović J., Influential factors on the<br />
realization of coal production in the<br />
mines with underground mining of the<br />
Republic of Serbia, Mining Engineering<br />
No.1/2002, 1-12 Resavica (pp.26-31)<br />
[6] Ivković M., Ljubojev M., Miljanović J.,<br />
The effect of ground exploitation of<br />
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surface and built facilities, Third<br />
International Conference on<br />
Environmental Management<br />
(ELEKTRA III), Herceg Novi 2004,<br />
(pp.242-246), (in Serbian)<br />
No 4, 2011. 79<br />
MINING ENGINEERING