Determination of optimal block length along the strike to provide safety and efficiency when extracting medium-thick in-clined coal seams using room-and-pillar method in Quang Ninh Coal Basin
https://doi.org/10.17073/2500-0632-2018-2-3-7
Abstract
An analysis of appropriateness of room-and-pillar method for extracting medium-thick inclined coal seams in Quang Ninh Coal Basin taking into account existing mining and geological conditions was carried out. Corresponding foreign experience of applying room-and-pillar method was considered in relation to the mines of Vietnam. Process flow sheet of first mining and extraction of medium-thick inclined coal seams by room-and-pillar method in complicated mining and geological conditions was developed, and optimal block length along the strike to provide the production safety and efficiency was determined.
About the Authors
Duc Thang Pham
National University of Science and Technology "MISiS"
Quang Ninh University of Industry
Viet Nam
Viet Nam
4, Leninsky Prospekt, Moscow, Russia, 119991
Yên Thọ, tx. Đông Triều, Quảng Ninh, Vietnam
Victor G. Vitcalov
National University of Science and Technology "MISiS"
Russian Federation
Russian Federation
4, Leninsky Prospekt, Moscow, Russia, 119991
Cand. Sci. (Tech.)
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Review
For citations:
Pham D., Vitcalov V.G. Determination of optimal block length along the strike to provide safety and efficiency when extracting medium-thick in-clined coal seams using room-and-pillar method in Quang Ninh Coal Basin. Mining Science and Technology (Russia). 2018;(2):3-8. https://doi.org/10.17073/2500-0632-2018-2-3-7
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