A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a curved surface corner attaching narrow slit lifting ridge. A reverse arc section is used for connecting the lifting ridge with a drainage groove. The upstream part and the downstream part of an edge wall of the reverse arc section are connected with a drainage groove edge wall and a linear edge wall correspondingly, and the upstream part and the downstream part of a bottom plate of the reverse arc section are connected with a drainage groove bottom plate and a horizontal bottom plate correspondingly; a reverse arc lifting bottom plate is arranged behind the horizontalbottom plate; the linear edge wall and a curve edge wall are connected at a lifting ridge outlet, and the curve edge wall is a contracting type edge wall; a clipped corner is arranged at the tail endof the curve edge wall; and an emergence bottom plate and a reverse arc lifting bottom plate are connected in a tangential manner at the lifting ridge outlet, and a falling ridge is arranged at the middle portion of the emergence bottom plate. According to the curved surface corner attaching narrow slit lifting ridge, the defects that the heights of the edge walls on the two sides of a conventional narrow slit lifting ridge are large, the pulse pressure intensity of the high-speed draining water flow effect on the edge walls on the two sides is large, stability of the structure is not facilitated, and a small-flow water tongue can be hardly lifted are overcome; the curved surface corner attaching narrow slit lifting ridge has the beneficial effects that the draining water flow is collidedfiercely by itself, space diffusion is sufficient, the energy consumption power of a downstream river channel is improved, and small-flow water tongue lifting is ensured; and in addition, the edge walls are low, and stress of the structure is stable.
本发明公开了一种曲面贴角窄缝挑坎，采用反弧段将挑坎与泄槽连接起来，反弧段边墙上、下游分别与泄槽边墙及直线边墙相接，反弧段底板上、下游分别与泄槽底板及水平底板相接；水平底板后设置反弧形起挑底板；挑坎出口处采用曲线边墙与直线边墙相接，曲线边墙为收缩式边墙；曲线边墙末端设置切角；挑坎出口处采用出射底板与反弧形起挑底板以相切的形式相接，出射底板中部设置跌坎。本发明克服了常规窄缝挑坎两侧边墙高度较高、高速下泄水流作用到两侧边墙上的脉动压强较大不利于结构稳定以及小流量水舌难以起挑的缺点，具有下泄水流自身碰撞剧烈、空间扩散充分、提高下游河道消能功率以及保证小流量水舌起的优点，并且边墙较低，结构受力稳定。
The invention discloses a curved surface corner attaching narrow slit lifting ridge. A reverse arc section is used for connecting the lifting ridge with a drainage groove. The upstream part and the downstream part of an edge wall of the reverse arc section are connected with a drainage groove edge wall and a linear edge wall correspondingly, and the upstream part and the downstream part of a bottom plate of the reverse arc section are connected with a drainage groove bottom plate and a horizontal bottom plate correspondingly; a reverse arc lifting bottom plate is arranged behind the horizontalbottom plate; the linear edge wall and a curve edge wall are connected at a lifting ridge outlet, and the curve edge wall is a contracting type edge wall; a clipped corner is arranged at the tail endof the curve edge wall; and an emergence bottom plate and a reverse arc lifting bottom plate are connected in a tangential manner at the lifting ridge outlet, and a falling ridge is arranged at the middle portion of the emergence bottom plate. According to the curved surface corner attaching narrow slit lifting ridge, the defects that the heights of the edge walls on the two sides of a conventional narrow slit lifting ridge are large, the pulse pressure intensity of the high-speed draining water flow effect on the edge walls on the two sides is large, stability of the structure is not facilitated, and a small-flow water tongue can be hardly lifted are overcome; the curved surface corner attaching narrow slit lifting ridge has the beneficial effects that the draining water flow is collidedfiercely by itself, space diffusion is sufficient, the energy consumption power of a downstream river channel is improved, and small-flow water tongue lifting is ensured; and in addition, the edge walls are low, and stress of the structure is stable.
本发明公开了一种曲面贴角窄缝挑坎，采用反弧段将挑坎与泄槽连接起来，反弧段边墙上、下游分别与泄槽边墙及直线边墙相接，反弧段底板上、下游分别与泄槽底板及水平底板相接；水平底板后设置反弧形起挑底板；挑坎出口处采用曲线边墙与直线边墙相接，曲线边墙为收缩式边墙；曲线边墙末端设置切角；挑坎出口处采用出射底板与反弧形起挑底板以相切的形式相接，出射底板中部设置跌坎。本发明克服了常规窄缝挑坎两侧边墙高度较高、高速下泄水流作用到两侧边墙上的脉动压强较大不利于结构稳定以及小流量水舌难以起挑的缺点，具有下泄水流自身碰撞剧烈、空间扩散充分、提高下游河道消能功率以及保证小流量水舌起的优点，并且边墙较低，结构受力稳定。
METAL FITTING FOR ATTACHING CORNER COVER AND METHOD FOR ATTACHING CORNER COVER
| European Patent Office | 2021