Improvement of the mining system for thickgently dipping seams by inclined layers
Authors:
About authors
- Ph.D., Dr.Sci. Leningrad Mining Institute
Abstract
Thick gentle seams in the USSR and abroad are developed mainly by inclined layers with roof collapse. In this system of development prop support in stoping faces allows to lay in each upper layer a wooden flooring or a metal mesh, which eliminates coal losses in the thickness of the seam and provides high completeness of excavation. But the use of prop support requires significant costs, heavy manual labor and reduces the production capabilities of the system, which in this form cannot meet the requirements of the present period. ...
Область исследования:
(Archived) Without section
Funding:
None
References
- V. A. Karabak. Economic assessment of coal losses in underground mining in Kuzbass. Ugol, 1968, No. 12 (in Russian)