FIELD: mining. SUBSTANCE: method for placer mining includes opening of placer and moving peats by bulldozer equipment beyond the placer outline; dredging of first split of edge of block placer to form edge single-side spoil heap from dredged sands on placer nonmining edge. After dredging the first split, remained sands at rock bed is treated to form spoil heaps of dredged sands after passage of dredging equipment. During the second split, dredged sands are withdrawn by means of floating conveyer line and spoil heaps in worked-out space of the first split are formed by means of stacker. EFFECT: higher efficiency. 3 dwg
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Authors
Dates
1995-07-09—Published
1992-11-03—Filed