FIELD: dredging and soil-shifting. SUBSTANCE: longitudinal vertical shields are pivotally connected to lateral vertical wall. An anchor is rigidly secured at bottom part of the wall. The top part of the wall is provided with anchors mounted through lever jaw. The jaw is pivotally connected to the wall for vertical displacement. A carrier is pivotally connected to the jaw. A slide is pivotally connected to the wall. Mechanism for working displacement is made of a pressing grab. EFFECT: enhance efficiency. 3 dwg
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