| 摘要 |
FIELD: mining. ^ SUBSTANCE: bench slope reinforcement method involves well drilling on upper and lower platforms of bench, laying of rope on slope, anchorage of rope ends in wells and rope tensioning. As each below-lying bench is being mined, rope tension force is controlled, as per the data of which additional reinforcement of above-lying benches is performed. ^ EFFECT: increasing the rigidity of bench slopes and improving the safety of mining operations. ^ 4 cl, 5 dwg |
