A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a flood discharge structure, and relates to the field of high dam flood discharge. The flood discharge structure aims to reduce harm caused by high dam flood discharge. The horizontal plane of the lower end of a flood discharge tunnel is connected with the upper surface of a first-stage flow guide plate, the two sides of the first-stage flow guide plate are connected with and seal the two banks of a plunge pool correspondingly, the first-stage flow guide plate is provided with holes, 80%-90% of flood discharge water flows to the plunge pool from the holes, and the tail end of the first-stage flow guide plate is horizontal; a drainage dam is provided with two rows of water outlet holes, the water outlet holes are rectangular holes, the lower water outlet hole is called as a drainage hole, the upper water outlet hole is called as a flow guide hole, the outlet area of the flow guide hole is 10%-20% of that of the drainage hole, the width of the flow guide hole in the horizontal direction is 1.5 to 2.0 times that of the drainage hole in the horizontal direction, and the central axes of the flow guide hole and the drainage hole coincide; the lower end horizontal plane of the flow guide hole is connected with the upper surface of a second-stage guide plate; and the lower surface of the tail end of the second-stage guide plate coincides with the upper surface of the drainage hole. The impact effect on the plunge pool is weakened; and the generation and overflow of flood discharge fog are reduced.
一种泄洪结构涉及高坝泄洪领域，为减少高坝泄洪带来的危害。泄洪洞下端水平面连接一级导流板上表面，一级导流板的两侧分别连接并密封水垫塘的两岸，一级导流板有孔洞，80%‑90%的泄洪水从孔洞流到水垫塘，一级导流板的末端水平；泄流坝有两排出水孔，出水孔为矩形孔，下排出水孔称为泄流孔，上排出水孔称为导流孔，导流孔出口面积为泄流孔出口面积的10‑20%，水平方向导流孔的宽度为水平方向泄流孔宽度的1.5‑2.0倍，导流孔和泄流孔竖直方向的中轴线重合；导流孔的下端水平面连接二级导流板上表面，二级导流板末端下表面与泄流孔上表面重合。减弱对水垫塘的冲击作用；减少泄洪雾的产生和外溢。
The invention discloses a flood discharge structure, and relates to the field of high dam flood discharge. The flood discharge structure aims to reduce harm caused by high dam flood discharge. The horizontal plane of the lower end of a flood discharge tunnel is connected with the upper surface of a first-stage flow guide plate, the two sides of the first-stage flow guide plate are connected with and seal the two banks of a plunge pool correspondingly, the first-stage flow guide plate is provided with holes, 80%-90% of flood discharge water flows to the plunge pool from the holes, and the tail end of the first-stage flow guide plate is horizontal; a drainage dam is provided with two rows of water outlet holes, the water outlet holes are rectangular holes, the lower water outlet hole is called as a drainage hole, the upper water outlet hole is called as a flow guide hole, the outlet area of the flow guide hole is 10%-20% of that of the drainage hole, the width of the flow guide hole in the horizontal direction is 1.5 to 2.0 times that of the drainage hole in the horizontal direction, and the central axes of the flow guide hole and the drainage hole coincide; the lower end horizontal plane of the flow guide hole is connected with the upper surface of a second-stage guide plate; and the lower surface of the tail end of the second-stage guide plate coincides with the upper surface of the drainage hole. The impact effect on the plunge pool is weakened; and the generation and overflow of flood discharge fog are reduced.
一种泄洪结构涉及高坝泄洪领域，为减少高坝泄洪带来的危害。泄洪洞下端水平面连接一级导流板上表面，一级导流板的两侧分别连接并密封水垫塘的两岸，一级导流板有孔洞，80%‑90%的泄洪水从孔洞流到水垫塘，一级导流板的末端水平；泄流坝有两排出水孔，出水孔为矩形孔，下排出水孔称为泄流孔，上排出水孔称为导流孔，导流孔出口面积为泄流孔出口面积的10‑20%，水平方向导流孔的宽度为水平方向泄流孔宽度的1.5‑2.0倍，导流孔和泄流孔竖直方向的中轴线重合；导流孔的下端水平面连接二级导流板上表面，二级导流板末端下表面与泄流孔上表面重合。减弱对水垫塘的冲击作用；减少泄洪雾的产生和外溢。
| Wiley | 1928
Layered flood discharge device for flood discharge and rush drainage
| European Patent Office | 2020