FIELD: mining.
SUBSTANCE: proposed method comprises excavation of working trench, mounting of transport communications, working of quarry field, excavation of minerals and access rock by benches. Note here that quarry field development is varied out from centre to its flanks while after development of quarry field for angle α between working trench and transport communications to be defined from mathematical relationship. Access rock is dumped into internal dumps located between working trench and transport communications. After complete development of quarry field working trench is elongated and transport communications are installed, cycle being reiterated several times.
EFFECT: higher efficiency, lower costs.
3 dwg
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SU1735587A1 |
