FIELD: mining.
SUBSTANCE: method involves driving of permanent and working trenches, installation of downhole and main transport pipelines, extraction of a mineral deposit with wedge-shaped producing blocks. Driving of a working trench is performed by means of a parallel cut throughout the length of an open-pit field, and direction of a mine work front line is offset in a circumferential direction, the centre of which is a stationary rotary station of transport pipelines with radius R equal to maximum width of excavation cut to observe parallelism of the axis of transport pipelines to the mine work front line. The formed angle αi between radius R and the line of the main transport pipelines is determined from a mathematical expression.
EFFECT: improving efficiency of a fan development system.
3 dwg
| Title | Year | Author | Number |
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| METHOD OF DEPOSITION OPEN WORKING | 2013 |
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| METHOD OF OPEN MINING OF MINERAL DEPOSITS | 0 |
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SU1416694A1 |
