| 摘要 |
PURPOSE:To stabilize and make independent a gravity type dock gate by stopping an ingress of water at its sea side when it is seated on a dock sill and then discharging water from a space between the dock gate bottom and the dock sill. CONSTITUTION:A watertight space 4 is formed between the bottom part 2A of a dock gate 2 and a dock sill part 3 where the lower end of the said gate 2 is seated. The Y part at the sea side S of the said space 4 is provided with a water stop rubber plate 7 between the convex part and its corresponding concave part at the dock sill part 3, thereby keeping the watertightness of the space 4 against the sea side S. Also, the dock sill part 3 of the watertight space 4 is slanted toward the inside of the dock. A convex part 8 is formed on the bottom 2A inside of the drydock 1 of the dock gate 2 for its contact with the slope of the concave part formed at the dock sill part 3.
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