| 摘要 |
FIELD: mining, particularly, methods of mining of steeply-dipping ore deposits. SUBSTANCE: method is characterized by the fact that extraction block is prepared by trench lateral drift. Drift is driven in barren rock along contact with ore body, with drift width determined by calculation. Broken ore proves to be on drift and removed by loading and transportation machine during its movement from one cross-cut to another. In this case, all are is gathered from floor of trench drift with prevented ore losses. EFFECT: eliminated losses of broken ore on trench drift as compared with its location on ore bed. 2 dwg |
