POSTURE CHANGING SYSTEM OF HANDRAIL OF DAM AND UPPER SURFACE ROAD THEREOF

To provide a posture changing system of handrails of a dam and an upper surface road thereof capable of suppressing breakage of the handrails erected from the upper surface road of the dam due to collision of drifts contained in wave pressure and overflow water in flooding time.SOLUTION: A posture c...

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Bibliographic Details
Main Authors OKUMA KIYOSHI, HIRANO KATSUNORI
Format Patent
LanguageEnglish
Japanese
Published 21.09.2022
Subjects
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
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Summary:To provide a posture changing system of handrails of a dam and an upper surface road thereof capable of suppressing breakage of the handrails erected from the upper surface road of the dam due to collision of drifts contained in wave pressure and overflow water in flooding time.SOLUTION: A posture changing system has an upper surface road 20 extending on a top part of a dam body 10 of a dam 50, and handrails 30 erected on both upstream/downstream ends 21 of the upper surface road 20. At least one of the handrails 30 of both ends 21 is mounted on the upper surface road 20 in a freely displaceable manner to be set lower.SELECTED DRAWING: Figure 1 【課題】ダムの天端道路から立設している高欄が、越水時の波圧や越水に含まれる漂流物の衝突により破損することを抑制できる、ダムとその天端道路の高欄姿勢変更システムを提供すること。【解決手段】ダム５０の堤体１０の頂部に延設する天端道路２０と、天端道路２０の上下流方向の両端部２１に立設する高欄３０とを有し、両端部２１にある高欄３０の少なくとも一方が、高さが低くなるように変位自在に天端道路２０に取り付けられている。【選択図】図１
Bibliography:Application Number: JP20210036225