FIELD: mining.
SUBSTANCE: tube-like deposit is divided into separate layers, which are horizontal or inclined towards well head, besides, well is drilled in the first layer after removal of overburden with subgrade drilling for depth of pilot well, and in subsequent layers - after full development of previous layer. At the same time mineral is supplied by self-propelled mining machine into head of drilled well, which, as pillar is rotated, is delivered by auger conveyor into loading windows above pilot bit, and is taken to surface through inner channels of pillar.
EFFECT: separation of drilling process and process of mineral delivery to surface in time in order to optimise parametres of drilling mode and operation of auger feeder as independent processes of mining.
1 dwg
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