Перегляд по темі "coal mining"
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Field preparation of long excavatory pillars in the conditions of the Western Donbass mines
(2020)Purpose. Reduce the cost of preparing pillars up to 3000 m in length. Methods. The analytical method of research was used to analyze the mining-geological conditions of the field development, the production situation for ... -
Safety barrier of electrical equipment for environments with a potential explosion in underground coal mines
(National Mining University, 2020-09-30)Purpose. Electrical equipment for explosion-threatening environments in mines at risk of explosion communicates with the external environment through intrinsic safety barriers that limit the values of currents to values ...