Study of physical-mechanical rock properties for rock disintegration purposes

Studija o fizičko-mehaničkim osobinama stene radi dezintegracije

  • Pavol Rybár Technical University of Košice, BERG Faculty
  • Ľubomír Štrba Technical University of Košice, BERG Faculty
  • Štefan Molokáč Technical University of Košice, BERG Faculty
  • Dušan Domaracký Technical University of Košice, BERG Faculty
  • Mária Rybárová Technical University of Košice, Faculty of Electrotechnics and Informatics
  • Ladislav Hvizdák Technical University of Košice, BERG Faculty
  • Mário Molokáč Technical University of Košice, BERG Faculty
Keywords: rock properties; drilling; fracture; melt; penetration

Abstract

 New method of drilling narrow vertical boreholes by controlled hydrogen combustion assumes that rocks melt and around thermally strained rock form radial fractures under high temperatures and pressures at interaction of the rock and the flame. To verify the range of formed radial fractures in different rock types, it is needed to know in detail rock and mineral properties before and after melting process of the rock. Petrographical, mineralogical, chemical and physical properties of rock samples were studied to have thorough knowledge of rock attributes. Results of this complex rock analysis represent the basis for physical and mathematical modeling of viscous properties of melt of selected rocks and for modeling of radial fractures in the rocks during narrow vertical borehole drilling process.

References

LAZAR, T. et al. (1998) A new technology of sinking vertical openings into rock masses (Nova tehnologija bušenja otvora u masivnim stijenama). In: Metalurgija. Vol. 37, no. 4 (1998), pp.199-202.

RYBÁR, P. et al. (2004) Štúdium problematiky tavenia nerastných surovín v extrémnych podmienkach. Košice: ES/AMS, 2004. 240 p.

RYBÁR, P. et al. (2011) Analýza vzoriek určených pre zistenie dosahu radiálnych trhlín pôsobením vysokých teplôt a tlakov 1 elektronický optický disk (CD-ROM). In: Nové detekčné metódy technológie pre získavanie nekonvenčných energetických zdrojov: seminár: 23.2.2011, Košice: TU.
Published
2012-12-31
How to Cite
Rybár, P., Štrba, Ľubomír, Molokáč, Štefan, Domaracký, D., Rybárová, M., Hvizdák, L., & Molokáč, M. (2012). Study of physical-mechanical rock properties for rock disintegration purposes. Podzemni Radovi, (21), 131-133. Retrieved from https://ume.rgf.bg.ac.rs/index.php/ume/article/view/71
Issue
No 21 (2012)
Section
Articles

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