FIELD: technological processes.
SUBSTANCE: invention relates to dredging and can be used in dredging of mainly anthropogenic placers. During development of placers in sections with thickness of productive deposits is more than maximum height of bottomhole of dredge upper part of deposits is removed and moved into trench, which is formed in dredge of sinus, adjacent to contours of reserves. After that dredging is started from displaced loosened part of productive deposits after stepping and lowering scoop frame to depth, providing sufficient filling of scoops. From that moment the development of bottomhole is performed layer-by-layer with extraction of productive deposits in whole part of bottomhole with subarea, with collapsing of formed canopy. In order to prevent emergency situations and reduce load on the dredge, the pitch value decreases, and to ensure uniform filling of scoops, thickness of the dredged layer decreases as depth of digging increases.
EFFECT: increased efficiency of dredge.
1 cl, 1 dwg
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Authors
Dates
2019-09-12—Published
2019-03-25—Filed