FIELD: soil production technology.
SUBSTANCE: invention relates to development and production of soil from bottom of water bodies. In development and production of soil from bottom of water reservoir is lowered grapple rope at reservoir bottom, loaded grapple soil during approaching its jaws due to vertical force up cable or cables grapple is lifted above water level and unloaded point of soil in vehicle or unloading site. At end of process or immediately after loading of grab bucket soil air is pumped in tight pockets attached to outer surface of the grab bucket jaws and capable of increasing its volume. Air is supplied through pipe available on each pocket or nozzle connected with hose or hoses, which are lifted up synchronously with rise of grab bucket. Filled with air pockets are left in inflated state till loaded grab bucket exits water, after which air from them is released.
EFFECT: reduced power consumption.
1 cl, 11 dwg
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