Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Differential type stepped spillway capable of improving flowing aeration and energy dissipation and using method of differential type stepped spillway
The invention relates to the technical field of spillway flood discharge and energy dissipation in water conservancy and hydropower engineering, in particular to a differential type stepped spillway capable of improving flowing aeration and energy dissipation and a using method of the differential type stepped spillway. The spillway is composed of a side wall and stepped overflow segments. The upper end surface of the side wall is fixedly connected with uniformly distributed stepped overflow segments. The stepped overflow segments are additionally provided with staggered wedge-shaped structures on the basis that the original transverse segments of the stepped overflow segments are rectangular and the stepped overflow segments are uniformly arranged along the way with the same size. In the invention, aiming at the straight-segment spillway, the stepped overflow segments are arranged, so that the cross section of the stepped overflow segment generates a certain gradient inclination, a certain pressure difference is formed while the transverse turbulent fluctuation of water flow is increased, the entrainment effect of a side wall on air is enhanced while the energy consumption is facilitated, and in the water flow direction, the flowing fall is increased due to staggered arrangement of the stepped overflow segments, longitudinal turbulent fluctuation of water flow is further increased, and normal drainage and safe operation of the spillway are guaranteed from the angles of aeration and energy dissipation.
本发明涉及水利水电工程中溢洪道泄洪消能技术领域，尤其为一种提高流动掺气和消能的差动式阶梯溢洪道及其使用方法，该溢洪道是由侧墙和阶梯溢流段构成，所述侧墙上端面固定连接有均匀分布的阶梯溢流段，所述阶梯溢流段在原有横向剖面为矩形，且阶梯溢流段沿程以同一尺寸均匀布置的传统阶梯的基础上增加交错排列的楔形结构；本发明中，针对直段溢洪道，通过设置阶梯溢流段，使阶梯横断面产生一定的坡度倾斜，增加水流横向紊动的同时形成了一定的压力差，利于能量消耗的同时加强了边墙对空气的卷吸作用，在沿水流方向，通过阶梯溢流段交错布置造成的流动落差增大，进一步增大了水流纵向的紊动，从掺气和消能的角度保证了溢洪道的正常泄流与安全运行。
Differential type stepped spillway capable of improving flowing aeration and energy dissipation and using method of differential type stepped spillway
The invention relates to the technical field of spillway flood discharge and energy dissipation in water conservancy and hydropower engineering, in particular to a differential type stepped spillway capable of improving flowing aeration and energy dissipation and a using method of the differential type stepped spillway. The spillway is composed of a side wall and stepped overflow segments. The upper end surface of the side wall is fixedly connected with uniformly distributed stepped overflow segments. The stepped overflow segments are additionally provided with staggered wedge-shaped structures on the basis that the original transverse segments of the stepped overflow segments are rectangular and the stepped overflow segments are uniformly arranged along the way with the same size. In the invention, aiming at the straight-segment spillway, the stepped overflow segments are arranged, so that the cross section of the stepped overflow segment generates a certain gradient inclination, a certain pressure difference is formed while the transverse turbulent fluctuation of water flow is increased, the entrainment effect of a side wall on air is enhanced while the energy consumption is facilitated, and in the water flow direction, the flowing fall is increased due to staggered arrangement of the stepped overflow segments, longitudinal turbulent fluctuation of water flow is further increased, and normal drainage and safe operation of the spillway are guaranteed from the angles of aeration and energy dissipation.
本发明涉及水利水电工程中溢洪道泄洪消能技术领域，尤其为一种提高流动掺气和消能的差动式阶梯溢洪道及其使用方法，该溢洪道是由侧墙和阶梯溢流段构成，所述侧墙上端面固定连接有均匀分布的阶梯溢流段，所述阶梯溢流段在原有横向剖面为矩形，且阶梯溢流段沿程以同一尺寸均匀布置的传统阶梯的基础上增加交错排列的楔形结构；本发明中，针对直段溢洪道，通过设置阶梯溢流段，使阶梯横断面产生一定的坡度倾斜，增加水流横向紊动的同时形成了一定的压力差，利于能量消耗的同时加强了边墙对空气的卷吸作用，在沿水流方向，通过阶梯溢流段交错布置造成的流动落差增大，进一步增大了水流纵向的紊动，从掺气和消能的角度保证了溢洪道的正常泄流与安全运行。
Differential type stepped spillway capable of improving flowing aeration and energy dissipation and using method of differential type stepped spillway
一种提高流动掺气和消能的差动式阶梯溢洪道及其使用方法
ZHOU YU (Autor:in) / ZHOU JIANFEN (Autor:in) / MAO QIAN (Autor:in) / WANG WEIZHEN (Autor:in) / HU XUSHEN (Autor:in) / SHU ZHAN (Autor:in) / YE HAN (Autor:in) / YANG HUIJIE (Autor:in) / LI JING (Autor:in)
07.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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