A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a steel slit dam allowing damage on a downstream side column to be highly effectively prevented through realizing a configuration to reduce possibility for drifting woods and like flowing down on an accumulated upper surface to fall and collide with the downstream side column in an assumption that the accumulated state is created with rocks and drifting woods dammed up to a position equal to a top of the steel slit dam.SOLUTION: A steel slit dam is configured to place a slit structural body 2 in a width direction of a river, wherein the slit structural body 2 is provided with: columns 3, 4 erected with a space between an upstream side position A and a downstream side position B in a steam direction of the river; an upstream side connection member 5 connecting the adjacent upstream side columns 3, 3 to each other; and a crown eves member 6 of which one end is connected on a vicinity of an upper end of the upstream side column 3 and the other end is configured to project to a downstream side further than the downstream side column 4 to be received and supported with the downstream side column 4. An upper end position of the downstream column 4 is lower than an upper end position of the upstream side column 3, and the crown eves member 6 is arranged in a slope θ downward from the upstream side to the downstream side.SELECTED DRAWING: Figure 3
【課題】鋼製スリットダムの頂部相当位置まで堰き止められた土石や流木等の堆積状態が発生することを前提に、その堆積上面部を流れ下る流木等が、下流側支柱へ落下衝突する可能性を低減する構成を実現することにより、下流側支柱の破損を極めて有効に防止することができる鋼製スリットダムを提供する。【解決手段】河川の河幅方向にスリット構造体２を設置して成り、スリット構造体２は、河川の流れ方向における上流側位置Ａと下流側位置Ｂとに間隔を開けて立てた支柱３、４と、隣接する上流側支柱３、３同士を連結した上流側横繋ぎ材５と、一端部は上流側支柱３の上端近傍に接合され他端部は下流側支柱４よりも下流側へせり出す構成で前記下流側支柱４に受け支持される天端軒部材６とからなり、前記下流側支柱４の上端位置は、前記上流側支柱３の上端位置よりも低い位置とされ、前記天端軒部材６は上流側から下流側へ下る勾配θに傾斜させて設けられている。【選択図】図３
To provide a steel slit dam allowing damage on a downstream side column to be highly effectively prevented through realizing a configuration to reduce possibility for drifting woods and like flowing down on an accumulated upper surface to fall and collide with the downstream side column in an assumption that the accumulated state is created with rocks and drifting woods dammed up to a position equal to a top of the steel slit dam.SOLUTION: A steel slit dam is configured to place a slit structural body 2 in a width direction of a river, wherein the slit structural body 2 is provided with: columns 3, 4 erected with a space between an upstream side position A and a downstream side position B in a steam direction of the river; an upstream side connection member 5 connecting the adjacent upstream side columns 3, 3 to each other; and a crown eves member 6 of which one end is connected on a vicinity of an upper end of the upstream side column 3 and the other end is configured to project to a downstream side further than the downstream side column 4 to be received and supported with the downstream side column 4. An upper end position of the downstream column 4 is lower than an upper end position of the upstream side column 3, and the crown eves member 6 is arranged in a slope θ downward from the upstream side to the downstream side.SELECTED DRAWING: Figure 3
【課題】鋼製スリットダムの頂部相当位置まで堰き止められた土石や流木等の堆積状態が発生することを前提に、その堆積上面部を流れ下る流木等が、下流側支柱へ落下衝突する可能性を低減する構成を実現することにより、下流側支柱の破損を極めて有効に防止することができる鋼製スリットダムを提供する。【解決手段】河川の河幅方向にスリット構造体２を設置して成り、スリット構造体２は、河川の流れ方向における上流側位置Ａと下流側位置Ｂとに間隔を開けて立てた支柱３、４と、隣接する上流側支柱３、３同士を連結した上流側横繋ぎ材５と、一端部は上流側支柱３の上端近傍に接合され他端部は下流側支柱４よりも下流側へせり出す構成で前記下流側支柱４に受け支持される天端軒部材６とからなり、前記下流側支柱４の上端位置は、前記上流側支柱３の上端位置よりも低い位置とされ、前記天端軒部材６は上流側から下流側へ下る勾配θに傾斜させて設けられている。【選択図】図３
STEEL SLIT DAM
鋼製スリットダム
KOKURYO HIROSHI (author)
2021-09-24
Patent
Electronic Resource
Japanese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
STEEL PIPE JOINT STRUCTURE OF STEEL SLIT DAM, AND STEEL SLIT DAM
| European Patent Office | 2023