SIMULATION OF COUPLED PROCESSES THAT OCCUR IN COAL ROCK MASSIF DURING MINING OPERATIONS
- Деталі
- Батьківська категорія: Геотехнічна механіка, 2015
- Категорія: Збірник наукових праць "Геотехнічна механіка" Випуск-121
UDC 691.32:620.193.4:539.219.3
Author:
Krukovskaya V.V., D.Sc. (Tech.), Senior Researcher (IGTM NAS of Ukraine)
Abstract.
Interrelation of deformation, diffusion-filtration, and other physical processes in the coal-rock massif under various technological influences is analyzed in this paper.
A set of mathematical models and computational methods were proposed. It permits to combine into a coupled system of multiple physical processes occurring in the rock mass under various technological impacts, and to simulate the complex processes of geomechanics. A criterion for the evaluation of the degree of influence of each of the coupled processes to changes in the common parameters array was proposed to determine whether to take them into account in an corresponding mathematical models. It is shown that the neglect of some of the processes in the mathematical modeling of complex physical processes leads to error, reaching 250 %.
The mathematical models and methods of calculation of coupled processes parameters «deformation of the rock massif with roof bolting – methane filtration», «deformation of the rock massif with roof bolting – methane filtration – the action of an explosion», «change in the stressed state of the working face – methane filtration – methane desorption» during the gas-dynamic processes, «change in the stressed state of the working face – the two-phase fluid and gas filtration» during fluid injection into the coal seam. The spatio-temporal patterns of the change of coupled processes parameters established at the base of this models.
Keywords:
coupled processes, stress-deformed state of the coal-rock massif, fluids filtration, gas-dynamic phenomena, anchoring, the action of the explosion.
References:
1. Alikin, V.N., Litvin, I.Ye., Shcherbakov, S.M. and Borodavkin, V.P. (1992), Metod konechnykh elementov v zadachakh gazoneftepromyslovoy mekhaniki [The finite element method in problems of gas-oilfield mechanics], Nedra, Moscow, Russia.
2. Zenkevich, O. (1975), Metod konechnykh elementov v tekhnike [The finite element method in technics], Mir, Moscow, USSR.
3. Segerlind, L. (1979), Primeneniye metoda konechnykh elementov [Application of Finite Element Method], Mir, Moscow, USSR.
4. Aziz, Kh. and Settari, E. (2004), Matematicheskoye modelirovaniye plastovykh sistem [Mathematical modeling of stratal systems], Institut komp’yuternykh issledovaniy, Moscow-Izhevsk, Russia.
5. Krukovskaya, V.V. (2006), “Development of the method of calculation of parameters of the filtering process of methane considering stress-strain state of undermined rock mass”, Ph.D. Thesis, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine, Dnepropetrovsk, Ukraine.
6. Masket, M. (2003), Fizicheskiye osnovy tekhnologii dobychi nefti [Physical basis of technology of oil production], Regulyarnaya i khaoticheskaya dinamika, Moscow-Izhevsk, Russia.
7. Borovikov, V.A. and Vanyagin, I.F. (1990), Modelirovaniye deystviya vzryva pri razrushenii gornykh porod [Simulation of explosion action in rock failure], Nedra, Moscow, USSR.
8. Krukovskiy, A.P., Khvorostyan, V.A. and Krukovskaya, V.V. (2013), “Technology of support-anchoring mining of coal mines in Ukraine”, Coal of Ukraine, no. 2, pp. 13-16.
9. Nikolin, V.I., Balinchenko, I.I. and Simonov, A.A. (1981), Bor’ba s vybrosami uglya i gaza v shakhtakh [The fight against emissions of coal and gas in mines], Nedra, Moscow, USSR.
10. Bodnya, G.V. (1977), “Features of tectonic zones, prone to sudden outbursts of coal and gas”, Voprosy ventilyatsii i bor’by s gazom i vnezapnymi vybrosami v ugol’nykh shakhtakh: nauch. soobshch., pp. 88-92.
11. Trifonova, N.V. (1976), “On laws of change of gas-dynamic parameters in the process of fracture zone ejection”, in Trifonova, N.V., Vybrosy uglya, porody i gaza [Emissions of coal, rock and gas], Naukova dumka, Kiev, USSR, pp. 60-64.
12. Shevelev, G.A. (1989), Dinamika vybrosov uglya, porody i gaza [The dynamics of emissions of coal, rock and gas], Naukova dumka, Kiev, USSR.
13. Zharov, A.I., Krasyuk, N.N., Remezov, A.V. [et al.] (2006), Formirovaniye vybrosoopasnykh zon v ugleporodnom massive i sposoby predotvrashcheniya vybrosoopasnosti na shakhtakh [Formation of outburst zones in rock mass and ways of preventing outburst in mines], Kuzbassvuzizdat, Kemerovo, Russia.
14. Ukraine Ministry of Coal Industry (2005), 10.1.00174088.011-2005. Pravyla vedennya hirnychykh robit na plastakh, skhylʹnykh do hazodynamichnykh yavyshch: Standart Minvuhlepromu Ukrayiny [Terms of mining in seams prone to gas-dynamic phenomena: Standard of Ministry of Coal Industry of Ukraine], Ministry of Coal Industry of Ukraine, Kiev, Ukraine.
15. Bulat, A.F., Krukovskaya, V.V., Krukovskyy, A.P. and Zberovskyy, V.V. (2012), “Numerical modeling of the hydroimpulse impact on outburst coal seams”, Geo-Technical Mechanics, no. 105, pp. 14-25.
About the author:
Krukovskaya Victoriya Victorovna, Doctor of Technical Sciences (D. Sc), Senior Researcher, Senior Researcher in Department of Control of Dynamic Demonstrations of Rock Pressure, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.