METHOD FOR DREDGE DEVELOPMENT OF TECHNOGENIC RESERVES Russian patent published in 2020 - IPC E21C41/30 E21C50/00 E02F3/88 

FIELD: technological processes.

SUBSTANCE: invention relates to dredging and can be used in dredging mainly anthropogenic placers represented by dump dumps. Method comprises opening in circuits of industrial reserves, reducing the thickness of productive deposits by cutting them to a depth sufficient for drilling the remaining part of the dredge, displacing the cut productive plots into the sap drain and dredging the prepared stocks with reducing the thickness of the dredged layer as the drawing depth increases, wherein extraction of productive deposits represented by dump dumps is started with sub-area at the level of the surface of the dredging waste dump; thereafter, layer-by-layer development is carried out in accordance with the profile of the dredging waste dump to placer placers.

EFFECT: improvement of disintegration due to mixing of hals and dredging waste and provision of uniform loading of dressing equipment, as well as reduction of losses of mineral due to formation of inter-step pillars from unproductive pebbles.

1 cl, 2 dwg