| 摘要 |
FIELD: mining industry. SUBSTANCE: the offered method includes development of mine field by sinking shafts, driving fringe drifts, intermediate crosscuts extraction drifts and location of breakage face, and mining of seams by single-side extraction fields onto the mass of mine side and at the same time coincident with return air current in the side of mine field, stopping operations in extraction field relative to opening, and procedure of working of shaft side with concurrent extraction of small pillars of constant size adjacent to crosscuts. EFFECT: higher efficiency. 1 cl, 1 dwg |
