| 摘要 |
PROBLEM TO BE SOLVED: To provide floating body type roof gate equipment for preventing complete opening operation of a floating body type roof gate from being hindered by sedimentation of sediment and stones in a door body lower part. SOLUTION: This floating body type roof gate equipment has a floating body type roof door body arranged in a hinge system in a waterway river bed part in a sluiceway and a slice pipe arranged in a river bank, and rising-up/ falling down so as to automatically block up and open a water passing cross section of the sluiceway and the sluice pipe by pressure of sluice pipe upper and lower flowing water. When draining the flowing water from the waterway upstream side to the downstream side in a state where the door body 1 completely falls down or near falls down on a river bed 2, a flowing water falling place of a door body downstream side waterway is formed as the river bed for forming a downward slope on the waterway downstream side.
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