| 摘要 |
In a device for an operating barrier for a channel comprising at least one mobile element (20, 220, 320) between an operative position where it is partially or totally sunk wherein it represents a barrier for the passage of water and a rest or inoperative floating position wherein the passage of water is free, the mobile element (20, 220, 320) has at least two or more compartments (24) each of which is provided with an hydraulic circuit (40) in order to introduce or expel water from said compartments (24). Said mobile element (20, 220, 320) may be provided with outer operating barriers (202, 302).
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