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
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 relat...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
National University of Science and Technology MISiS
2018-06-01
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Series: | Горные науки и технологии |
Subjects: | |
Online Access: | https://mst.misis.ru/jour/article/view/105 |
Summary: | 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. |
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ISSN: | 2500-0632 |