RESERVES IN THE WORKING SIDES DREDGING DEVELOPMENT METHOD Russian patent published in 2018 - IPC E21C41/30 E21C50/00 E02F3/88 

FIELD: mining.

SUBSTANCE: invention relates to the mining, and can be used in the mainly medium and deep placers dredging development. Placer deposits dredging method includes opening in the industrial stocks contours, reducing the productive deposits thickness by their cutting to the depth sufficient to work the rest part with the dredger, cut productive deposits transfer to the trench and the prepared reserves dredging; the trench is formed in the adjacent to the reserves contours dredging pocket, at that, the dredging dump slope to the dredging stroke boundary is divided into terraces with the intercourse depressions backfilling (filling-in), being cut productive deposits upper layer is transferred to the terraces horizontal platforms, and dredging is carried out in layers until rocks from the dredging dumps appearance in the buckets.

EFFECT: enabling the possibility to control the drag stroke transverse parameters by means of the cut face width and height changing.

4 cl, 1 dwg