| 摘要 |
Way to drive by selecting ore deposits of small thickness of the field, which uses the stairs-like carrier located lag system and sedimentation control the depth of the floor in the front opening, and the size of the pillars carrier residual left in the gob characterized in that the blocks (1) separate the front sleeves (2), using conventional mining equipment, first carried out in a direction perpendicular to the progress of the excavation front anchoring (3) with width and height to allow the work machine, using a selective molding of the upper layer and select ore (4) and lower waste rock (5) invested in fully depleted before the excavation (6), and, secondly, the use of conventional drilling vehicles, and the firing is carried out in the output works ore layers (7) shelf-deposited on both sides of pit (3), of which the plates output of a machine with a pendant reclaiming the pit floor (3), where conventional bucket-loaders are discontinued to the transport system. Side when mining ore layers (7) are extracted residual pillars (8) and fence pillars (9), safety walkways transport (10). In the case anchor collector applies only to secure the roof of the excavation (3) and pavements transport (10). |
