INFLUENCE OF HYDRODYNAMIC EFFECT ON THE COAL STRUCTURE

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 120

UDC 622.831:552.574.08

Authors:

Karamushka O.A., Ph.D. (Geol.), Junior Researcher,

ZmiyevskayaK.O., M.S (Tech),

Pashchenko P.S., Ph.D. (Geol.), Senior Researcher,

Vlasenko V.V., Junior Researcher

(IGTM NAS of Ukraine),

Moskovskiy O.V., M.S (Tech)

(LE «F.E. Dzerzhinskiy Mine»

SOE «Dzerzhinskugol»)

Abstract:

Purpose of the work is to study structural changes of coal after applied hydrodynamic shock. A main task is to research structural changes of coal in the disturbed and undisturbed zones before applying of and after hydrodynamic shock applied in the coal-containing layer. Method of hydrodynamic shock employed in the gas-saturated coal layers allows to obtain their effective degassing, to change the massif stress-strain state toward unloading the layers, and to prevent sudden rock outbursts. Samples of coal selected in the LE «F.E. Dzerzhinskiy Mine» of the SOE «Dzerzhinskugol» were used for studying structural changes of the coal in the disturbed and undisturbed zones before applying of and after hydrodynamic shock applied in the coal-containing layer. Percentage of partings were determined in the coal samples. The findings have proven that hydrodynamic shock does not influence the coal structure, i.e. does not increase or diminish percentage of partings in the coal samples in the disturbed and undisturbed zones of the coal layers.

Keywords:

hydrodynamic shock, disturbed zones, coal layer, fracture, partings.

References:

1. Bulat, A.F., Sofiyskiy, K.K., Silin, D.P. [and others] (2003), Gidrodinamicheskoevozdeystvienagazonasyshchennyeugolnyeplasty [Hydrodynamic affect on gas-saturated coal layers], Poligrafist, Dnepropetrovsk, Ukraine.

2. Sofiyskiy, K.K., Kalfakchiyan, A.P., Vorobev, E.A. (1994), Netraditsionnye sposoby predotvrashcheniya vybrosov i dobychi uglya [Untraditional methods of prevention of coal blow-out and booty of coal], Nedra, Moscow, Russia.

3. Baranov, V.A. and Karamushka, O.A. (2008), “Method of determination of the dislocated zones on microstructure parameters coal”, Naukovyi visnyk Natsionalnohо hirnychoho universytetu, no.12, pp. 33-35.

4. Karamushka, O.O. (2013), “The structural criteria of location of the dislocated zones in the coal layers of Donbas”, Abstract of Ph.D. dissertation, General and regional geology, Institute of geological sciences NAS of Ukraine, Kiev, Ukraine.

5. Sherman, S.I., Bornyakov, S.A., Buddo, V.Yu. (1983), Oblasti dinamicheskogo vliyaniya razlomov [Areas of dynamic influence of faults], Nauka, Novosibirsk, SU.

6. Eremin, I.V., Lebedev, V.V. and Tsikarev, D.A. (1980), Petrografiya i fizicheskie svoystva ugley [Petrography and physical properties of coals], Nedra, Moscow, SU.

7. Verhoogen, J., Turner, F.J., Weiss, L.E., Wahrhaftig, C. and Fyfe, W.S. (1974), Zemlya.Vvedenie v obshchuyu geologiyu [The Earth. An introduction to physical geology], Borisov, B.A., Karasik, A.M. (ed.), Mir, Moscow, SU.

8. Sadovskiy, M.A., Bolkhovitinov, L.G. and Pisarenko, V.F. (1982), “About connection of discreteness of rocks”, Izvestiya AN SSSR. Seriya «Fizika Zemli», no.12, pp. 126-130.

9. Ponomarev, V.S. and Romashov, A.N. (1994), “Design of unit construction of earthly barks”, Priroda, no.5, pp. 54-63.

10. Rats, M.V. and Chernyshov, S.N. (1970), Treshchinovatost i svoystva treshchinovatykh gornykh porod [Fracturing and properties of fracture rocks], Nedra, Moscow, SU.

About the authors:

Karamushka Olga Аleksandrоvna, Candidate of Geological Sciences (Ph.D), Junior Researcher in Laboratory of Researches of the Structural Changes in the Rock in Department of Geology of Coal Beds at Great Depths, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Zmiyevskaya Kristina Olegovna, Master of Science, Engineer in Department of Underground Coal Mining Technology, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Pashchenko Pavel Sergeevich, Candidate of Geological Sciences (Ph.D), Senior Researcher in Laboratory of Researches of the Structural Changes in the Rock in Department of Geology of Coal Beds at Great Depths, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Vlasenko Vasiliy Viktorovich, Master of Science, Junior Researcher in Department of Underground Coal Mining Technology, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Moskovskiy Oleg Viktorovich, Master of Science, Head of site LE «F.E. Dzerzhinskiy Mine» SOE «Dzerzhinskugol», Dzerzhinsk, Ukraine.

• < Prev
• Next >