A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Asymmetrical arch dam systematic flood discharge and energy dissipation arrangement method and structure
The invention provides an asymmetrical arch dam systematic flood discharge and energy dissipation arrangement method and structure. By means of the asymmetrical arch dam systematic flood discharge andenergy dissipation arrangement method and structure, a flood discharge center line is made to coincide with or be parallel to a center line of a downstream riverway and form a certain included anglewith an arch dam center line, flood discharge hole mouths are arranged into multiple layers of hole mouths, planes of all layers of the hole mouths adopt asymmetrical arc arrangements forming certainincluded angles with the arch dam axis, a movement trajectory of a flood discharge water tongue is controlled through angles of the arc curvature radius, flood discharge hole grouping and hole mouth flow discharge in the vertical direction, and the water tongue is made to enter the center of a water cushion pond in a layered and strewn manner. According to the asymmetrical arch dam systematic flood discharge and energy dissipation arrangement method and structure, by means of adoption of the layered and asymmetrical flood discharge hole mouth arrangements, the water tongue movement trajectoryis controlled, the water tongue is made to conform to the downstream riverway, negative influence of asymmetrical flood discharge structures and asymmetrical topographic conditions on the flood discharge safety and bank slope erosion is solved, and the dam flood discharge and energy dissipation requirements are met.
本发明提供了一种不对称拱坝的系统性泄洪消能布置方法和结构，使泄洪中心线与下游河道的中心线重合或平行，并与拱坝中心线呈一定夹角，所述泄洪孔口被布置为多层孔口，各层孔口平面上采用与拱坝轴线呈一定夹角的不对称圆弧布置，通过圆弧曲率半径、泄洪孔分组、孔口出流在垂直方向上的角度，控制泄洪水舌运动轨迹，使水舌分层错落进入水垫塘中央。本发明通过采用分层不对称的泄洪孔口布置，控制水舌运动轨迹，使水舌顺应下游河道，解决了不对称的拱坝结构和不对称的地形条件对泄洪安全和岸坡冲刷的不利影响，满足大坝泄洪消能要求。
Asymmetrical arch dam systematic flood discharge and energy dissipation arrangement method and structure
The invention provides an asymmetrical arch dam systematic flood discharge and energy dissipation arrangement method and structure. By means of the asymmetrical arch dam systematic flood discharge andenergy dissipation arrangement method and structure, a flood discharge center line is made to coincide with or be parallel to a center line of a downstream riverway and form a certain included anglewith an arch dam center line, flood discharge hole mouths are arranged into multiple layers of hole mouths, planes of all layers of the hole mouths adopt asymmetrical arc arrangements forming certainincluded angles with the arch dam axis, a movement trajectory of a flood discharge water tongue is controlled through angles of the arc curvature radius, flood discharge hole grouping and hole mouth flow discharge in the vertical direction, and the water tongue is made to enter the center of a water cushion pond in a layered and strewn manner. According to the asymmetrical arch dam systematic flood discharge and energy dissipation arrangement method and structure, by means of adoption of the layered and asymmetrical flood discharge hole mouth arrangements, the water tongue movement trajectoryis controlled, the water tongue is made to conform to the downstream riverway, negative influence of asymmetrical flood discharge structures and asymmetrical topographic conditions on the flood discharge safety and bank slope erosion is solved, and the dam flood discharge and energy dissipation requirements are met.
本发明提供了一种不对称拱坝的系统性泄洪消能布置方法和结构，使泄洪中心线与下游河道的中心线重合或平行，并与拱坝中心线呈一定夹角，所述泄洪孔口被布置为多层孔口，各层孔口平面上采用与拱坝轴线呈一定夹角的不对称圆弧布置，通过圆弧曲率半径、泄洪孔分组、孔口出流在垂直方向上的角度，控制泄洪水舌运动轨迹，使水舌分层错落进入水垫塘中央。本发明通过采用分层不对称的泄洪孔口布置，控制水舌运动轨迹，使水舌顺应下游河道，解决了不对称的拱坝结构和不对称的地形条件对泄洪安全和岸坡冲刷的不利影响，满足大坝泄洪消能要求。
Asymmetrical arch dam systematic flood discharge and energy dissipation arrangement method and structure
一种不对称拱坝的系统性泄洪消能布置方法和结构
ZHANG CHUNSHENG (author) / XU JIANRONG (author) / PENG YU (author) / WANG JIANXIN (author) / XUE YANG (author) / TAO JUNJIA (author)
2020-06-23
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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