A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SLUICE, IRRIGATION DEVICE, IRRIGATION SYSTEM AND CROP CULTIVATION METHOD
To provide a sluice that can be positioned so that the position of an upper end is almost the same as the position of the surface of a ridge, and the water level required for the agricultural land can be adjusted.SOLUTION: A sluice of the present invention comprises: an outer cylinder buried in a ridge with a bottom wall facing down; an inflow portion that allows liquid to flow from an outside to an inside of the outer cylinder; an outflow portion that allows the liquid to flow out from the inside to the outside; an intermediate cylinder that is housed inside and can be expanded and contracted along the vertical direction; a slide cylinder that fits into an upper portion of the outer cylinder and is slidable; and a lid attached to the slide cylinder and capable of opening and closing an upper opening of the slide cylinder. The slide cylinder is positioned so that the vertical position of the lid when the opening is closed is substantially the same as the position of the surface of the ridge. The intermediate cylinder is adjusted to a length at which the upper end thereof is the position of the water level required for the agricultural land adjacent to the ridge.SELECTED DRAWING: Figure 1
【課題】本発明は、上端の位置が畦畔の表面の位置と略同一となるように位置決め可能で、農地に必要とされる水位を調整できる水閘の提供を目的とする。【解決手段】本発明の水閘は、底壁が下側となる姿勢で畦畔に埋設される外筒と、前記外筒の外部から内部へ液体を流入させる流入部と、内部から外部へ液体を流出させる流出部と、前記内部に収容される筒であって、前記上下方向に沿って伸縮可能な中筒と、前記外筒における上側の部分に嵌ってスライド可能とされるスライド筒と、前記スライド筒に取り付けられ、前記スライド筒の上側の開口を開閉可能な蓋と、を備え、前記スライド筒は、前記開口を閉じた状態における前記蓋の前記上下方向の位置が前記畦畔の表面の位置と略同一となるように位置決めされ、前記中筒は、その上端が前記畦畔に隣接する農地に必要とされる水位の位置となる長さに調整される。【選択図】図１
SLUICE, IRRIGATION DEVICE, IRRIGATION SYSTEM AND CROP CULTIVATION METHOD
To provide a sluice that can be positioned so that the position of an upper end is almost the same as the position of the surface of a ridge, and the water level required for the agricultural land can be adjusted.SOLUTION: A sluice of the present invention comprises: an outer cylinder buried in a ridge with a bottom wall facing down; an inflow portion that allows liquid to flow from an outside to an inside of the outer cylinder; an outflow portion that allows the liquid to flow out from the inside to the outside; an intermediate cylinder that is housed inside and can be expanded and contracted along the vertical direction; a slide cylinder that fits into an upper portion of the outer cylinder and is slidable; and a lid attached to the slide cylinder and capable of opening and closing an upper opening of the slide cylinder. The slide cylinder is positioned so that the vertical position of the lid when the opening is closed is substantially the same as the position of the surface of the ridge. The intermediate cylinder is adjusted to a length at which the upper end thereof is the position of the water level required for the agricultural land adjacent to the ridge.SELECTED DRAWING: Figure 1
【課題】本発明は、上端の位置が畦畔の表面の位置と略同一となるように位置決め可能で、農地に必要とされる水位を調整できる水閘の提供を目的とする。【解決手段】本発明の水閘は、底壁が下側となる姿勢で畦畔に埋設される外筒と、前記外筒の外部から内部へ液体を流入させる流入部と、内部から外部へ液体を流出させる流出部と、前記内部に収容される筒であって、前記上下方向に沿って伸縮可能な中筒と、前記外筒における上側の部分に嵌ってスライド可能とされるスライド筒と、前記スライド筒に取り付けられ、前記スライド筒の上側の開口を開閉可能な蓋と、を備え、前記スライド筒は、前記開口を閉じた状態における前記蓋の前記上下方向の位置が前記畦畔の表面の位置と略同一となるように位置決めされ、前記中筒は、その上端が前記畦畔に隣接する農地に必要とされる水位の位置となる長さに調整される。【選択図】図１
SLUICE, IRRIGATION DEVICE, IRRIGATION SYSTEM AND CROP CULTIVATION METHOD
水閘、灌漑装置、灌漑システム及び作物の栽培方法
NOZAWA YOJI (author)
2021-03-01
Patent
Electronic Resource
Japanese
Sluice gates for the Sarda River irrigation scheme
Engineering Index Backfile | 1929
Sluice gates for the Sarda river irrigation scheme
Engineering Index Backfile | 1929
Field Calibration of Submerged Sluice Gates in Irrigation Canals
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