Testing of the resistance towards the cutting of the coal mass by the mechanical means on the example of deposit 'Kostolac'

Ispitivanje otpora prema rezanju ugljene mase mehaničkim sredstvima na primeru ležišta 'Kostolac'

  • Nebojša Vidanović University of Belgrade – Faculty of Mining and Geology
  • Marko Vujanović Siming d.o.o.
  • Saša Ognjanović PE for UEC Resavica, BCM "Jasenovac"
  • Dobrica Nikolić University of Belgrade – Faculty of Mining and Geology
Keywords: coal; cutting; resistance; Kostolac

Abstract

  For cutting of the coal mass in the coal mines, in addition to explosive, different machines and devices whose construction has to be adjusted to the working conditions are used. This paper deals with the problems related to the conditions of coal mass cutting and the corresponding resistance based on an examination of a sample from coal basin Kostolac - Field 'Drmno', under different conditions and different shapes and sizes of etalon for cutting (different widths, angles...) varying degrees of blockage (blocked, semi blocked and free) and for different depths of cutting. For the purpose of determining the behavior of coal mass from the point of its destruction by mechanical means, as the most appropriate research method, a method of three-component load measuring on the cutting element during the cutting process was used. Based on the simulation of this process in the laboratory the corresponding equations depending on these influential factors in the process of cutting coal were obtained.

References

VIDANOVIĆ, N. (1996) Izučavanje ponašanja ugljene mase sa stanovišta njenog razaranja mehaničkim sredstvima . (PhD), Rudarsko-geološki fakultet,
Beograd.

VIDANOVIĆ, N. et al. (1997) Determination of the cutting resistance of lignite from the "Dobro Selo" deposit. ergetski pokazatelj mehaničkih svojstava radne sredine. Underground Mining Engineering , 7, pp.115-120.

VIDANOVIĆ, N. i TOKALIĆ, R. (1999) Dosadašnja iskustva o otporu prema rezanju uglja i izbor odgovarajućeg modela. Zbornik radova V jugoslovenskog simpozijuma sa međunarodnim učešćem "Aktuelni problemi razvoja i primene mehanizacije u rudarstvu", Beograd, decembar 1999 .
Beograd: Rudarsko-geološki fakultet, pp.174-177.

JOVANOVIĆ, P. et al. (1996) Effects the cutting depth on the magnitude of catting resistance. Underground Mining Engineering , 5, pp.91-94.
Published
2013-12-31
How to Cite
Vidanović, N., Vujanović, M., Ognjanović, S., & Nikolić, D. (2013). Testing of the resistance towards the cutting of the coal mass by the mechanical means on the example of deposit ’Kostolac’. Podzemni Radovi, (23), 59-68. Retrieved from http://ume.rgf.bg.ac.rs/index.php/ume/article/view/51
Section
Articles

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