标题：Justification of Spatially-Planned Solutions and Determination of the Dimension Block in the Working of the Medium Thick Inclined Coal Seams with the Room and Pillar System
摘要：Technological parameters for working out of the medium thick
inclined coal seams with a diagonal arrangement of a line of a working
face. An analysis of the constraints that apply the technology and the
complexities of the mining and geological conditions of the Quang Ninh
coal basin. The possibility and expediency of using the foreign experience
of working out of the medium thick inclined coal seams in the mines of
Vietnam and justification of spatially-planned solutions for working. The
scheme of preparation and working out of the excavation area is given in
view of the technological features in difficult mining and geological
conditions, using the room and pillar system and determination of the
rational length of the block along the strike.
其他摘要：Technological parameters for working out of the medium thick inclined coal seams with a diagonal arrangement of a line of a working face. An analysis of the constraints that apply the technology and the complexities of the mining and geological conditions of the Quang Ninh coal basin. The possibility and expediency of using the foreign experience of working out of the medium thick inclined coal seams in the mines of Vietnam and justification of spatially-planned solutions for working. The scheme of preparation and working out of the excavation area is given in view of the technological features in difficult mining and geological conditions, using the room and pillar system and determination of the rational length of the block along the strike.
