Effect of bifurcation in physicochemical parameters on outburst hazard of coal seams
| Autor: | Tatyana Kiryaeva |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
porosity
020209 energy methane content 02 engineering and technology volatile yield complex mixtures Methane chemistry.chemical_compound Physics::Popular Physics Bifurcation theory 020401 chemical engineering Mining engineering 0202 electrical engineering electronic engineering information engineering otorhinolaryngologic diseases outburst hazard Coal 0204 chemical engineering Porosity Water content Methane absorption Bifurcation Physics::Atmospheric and Oceanic Physics lcsh:Environmental sciences moisture content coal lcsh:GE1-350 business.industry Coal mining technology industry and agriculture respiratory system respiratory tract diseases langmuir equation chemistry bifurcation business absorption Geology |
| Zdroj: | E3S Web of Conferences, Vol 129, p 01003 (2019) |
| ISSN: | 2267-1242 |
| Popis: | The paper considers interaction between gas-kinetic and physicochemical parameters in coal seams, which conditions coal and gas outbursts. The laboratory and field test data on interaction between geomechanical and physicochemical processes in coal seams are presented for various rank of coals from Kuzbass. The areas of higher coal and methane outburst hazard feature bifurcation in porosity, moisture content and methane absorption of coal from different operating mines in the Kuznetsk, Donets and Lvov–Volyn Basins. Bifurcation consists in the alteration of gradients of these values. At the bifurcation point of these parameters, a coal-and-methane seam can generate a disturbing gas-dynamic impulse sufficient for coal self-destruction. This property explains unexpected nature of coal and gas outbursts. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|