| 摘要 |
PROBLEM TO BE SOLVED: To improve the landscape of a river by eliminating protrusions projecting above an embankment and reduce the installation cost and the construction term of a pump gate. SOLUTION: In the pump gate, a submergible pump 3 forcibly discharging water from one side of a door 2 to the other side is installed to a door 2 opening or shutting a channel by lifting up or down by a lift 4. The lift 4 is installed at one side or the other side of the door 2. COPYRIGHT: (C)2004,JPO
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