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Active Prefracture Methods in Top Coal Caving Technologies for Thick and Gently Dipping Seams

Autor: L. D. Pavlova, V. I. Klishin, G. Yu. Opruk, V. N. Fryanov

Publikováno v: Journal of Mining Science. 56:395-403

The authors perform numerical modeling for the comprehensive stress-strain analysis of roof rocks above powered roof support units in the longwall top coal caving technology. Passive control of top coal prefracture fails to maintain efficient disinte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49b6c5c03489e30801966f85af4accd1
https://doi.org/10.1134/s1062739120036689

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Modeling Top Coal Disintegration in Thick Seams in Longwall Top Coal Caving

Autor: L. D. Pavlova, V. N. Fryanov, V. I. Klishin, G. Yu. Opruk

Publikováno v: Journal of Mining Science. 55:247-256

The geomechanical model of the powered roof support-top coal-roof rock system is developed. For investigation of disintegration processes in top coal of thick seam, numerical modeling with finite element discretization of a study domain is carried ou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d97a387dda7f646ef5806c422c8b5160
https://doi.org/10.1134/s1062739119025527

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Rockbolting improvement in Coal Mines in permafrost regions

Autor: V. I. Klishin, E. A. Razumov, G. Yu. Opruk, P. V. Grechishkin

Publikováno v: Journal of Mining Science. 52:949-955

The authors give basic design procedures for two-level rock bolt support in underground mining in permafrost regions. The use of rockbolting in combination with heat insulation on a test site in Dzhebariki-Khaya Coal Mine is studied.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee22599987c101b7d5b18866bf9fec3c
https://doi.org/10.1134/s1062739116041453

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Geophysical and geomechanical analysis of coal mass condition during directional hydraulic fracturing (DHF)

Autor: V. I. Klishin, G. Yu Opruk, A. V. Galkin, S. V. Sokolov, O. V. Taylakov

Publikováno v: IOP Conference Series: Earth and Environmental Science. 377:012035

The article reveals the information about the technology of roof rock directional hydraulic fracturing (DHF) performance when the longwall face was operating under tough roof conditions. The authors justify the application of the DHF method. They dev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::735bca24c4af667a1506fb4203caaed7
https://doi.org/10.1088/1755-1315/377/1/012035

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Seismic monitoring of hydrodynamic impact on coal seam at interval hydraulic fracturing

Autor: G. Yu. Opruk, V. I. Klishin, O. V. Taylakov, S. V. Sokolov, A. S. Teleguz, M P Makeev, A L Tatsienko

Publikováno v: IOP Conference Series: Earth and Environmental Science. 377:012034

The article proves the importance of using interval hydraulic fracturing of coal seam for gas emission stimulation. The authors suggest using equipment for taking measures to intensify gas emission during implementation of hydraulic fracturing. They

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b97a495e7ba2ed1a151753844d02fa7
https://doi.org/10.1088/1755-1315/377/1/012034

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Modeling coal discharge in mechanized steep and thick coal mining

Autor: G. Yu. Opruk, S. V. Klishin, V. I. Klishin

Publikováno v: Journal of Mining Science. 49:932-940

The physical and analytical modeling of coal discharge in thick coal mining by sublevel caving involves the method when coal is discharged under gravity on the powered support units and is proportioned-fed to a face conveyor placed between the suppor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7eb127d17a36ab956541bf31c944033
https://doi.org/10.1134/s1062739149060130

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