Author 1:
Name & Surname: Slastunov S. V.
Company: Mining Institute, National University of Science and Technology MISiS (Moscow, Russia)
Work Position: Head of department, Professor Scientific Degree: Doctor of Engineering Sciences
Contacts: slastunov@mail.ru

Author 2:
Name & Surname: Karkashadze G. G.
Company: Mining Institute, National University of Science and Technology MISiS (Moscow, Russia)
Work Position: Professor
Scientific Degree: Doctor of Engineering Sciences

Author 3:
Name & Surname: Mazanik E. V.
Company: SUEK-Kuzbass (Leninsk-Kuznetsky, Russia)
Work Position: Director for Aerodynamic Safety of Mines
Scientific Degree: Candidate of Engineering Sciences

Author 4:
Name & Surname: Lupiy M. G.
Company: SUEK-Kuzbass (Leninsk-Kuznetsky, Russia)
Work Position: Director of mine
Scientific Degree: Candidate of Engineering Sciences

The authors appreciate participation of K. S. Kolikov, Doctor of Engineering Sciences, Professor, MISiS, in this research work. The article presents methodology for forecasating maximum allowable face output based on gas criterion. The calculations use differential equations of methane mass transfer in terms of partial derivatives. The source information was the data on actual ground conditions in Kirov Mine, SUEK-Kuzbass. The authors adduce the calculation results that allow estimating effect of face conveyor velocity, fraction composition of broken coal and face length on coal production. The developed methodology enables a tentative forecast of gas content of air in the face area, which is required in planning extraction sites or production units. The forecast methodology for maximum allowable face output is meant for routine and long-term production planning.
The work was supported by the RF Ministry of Education and Science in the framework of the governmental assignment under agreement no. 14. VVV.21.0142.14.575.21.0025 as of June 23, 2014.

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