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A platform for research: civil engineering, architecture and urbanism
Cave plug flood discharging cave connected through open channel
The invention discloses a cave plug flood discharging cave connected through an open channel. The flood discharging cave comprises an inlet section, an open channel section, a vertical shaft section,a lower flat section, and cave plug sections which are sequentially arranged in the water flow direction. The open channel section is vertically communicated with the vertical shaft section; the vertical shaft section is vertically communicated with the lower flat section; the number of the cave plug sections is multiple; and the cave plug sections are closely connected with one another. The connecting mode, the structure and the arrangement mode of a cave plug energy dissipater are improved, the dynamic load of a bottom plate of the vertical shaft section can be reduced, and air in a verticalshaft can be exhausted easily. During flood discharging, water flow in a reservoir flows into the vertical shaft from the open channel and is changed into pressure flow from non-pressure flow, so that the reduction of the hydrodynamic load acting on the bottom plate of the vertical shaft section and the discharge of the air in a cave are facilitated. The flood discharging cave plug section adoptsmulti-stage contraction type plugs, which is good in energy dissipation effect, and can adapt to high-flow and high-water-head working conditions.
本发明公开了一种采用明渠连接的洞塞泄洪洞，包括沿着水流方向依次设置的进口段、明渠段、竖井段、下平段和洞塞段；所述明渠段与所述竖井段垂直连通，所述竖井段与所述下平段垂直连通；所述洞塞段的数量为多段，且相互紧接。对洞塞消能工的连接方式、结构以及布置形式进行了改进，能减轻竖井段底板动力荷载，且利于竖井内空气排出。泄洪时水库中的水流由明渠流入竖井中，水流由无压流变为有压流，有利于减轻作用于竖井段底板的水动力荷载和利于洞内空气排出。泄洪洞洞塞段采用多级收缩式洞塞，具有良好的消能效果，能适应大流量、高水头工作条件。
Cave plug flood discharging cave connected through open channel
The invention discloses a cave plug flood discharging cave connected through an open channel. The flood discharging cave comprises an inlet section, an open channel section, a vertical shaft section,a lower flat section, and cave plug sections which are sequentially arranged in the water flow direction. The open channel section is vertically communicated with the vertical shaft section; the vertical shaft section is vertically communicated with the lower flat section; the number of the cave plug sections is multiple; and the cave plug sections are closely connected with one another. The connecting mode, the structure and the arrangement mode of a cave plug energy dissipater are improved, the dynamic load of a bottom plate of the vertical shaft section can be reduced, and air in a verticalshaft can be exhausted easily. During flood discharging, water flow in a reservoir flows into the vertical shaft from the open channel and is changed into pressure flow from non-pressure flow, so that the reduction of the hydrodynamic load acting on the bottom plate of the vertical shaft section and the discharge of the air in a cave are facilitated. The flood discharging cave plug section adoptsmulti-stage contraction type plugs, which is good in energy dissipation effect, and can adapt to high-flow and high-water-head working conditions.
本发明公开了一种采用明渠连接的洞塞泄洪洞，包括沿着水流方向依次设置的进口段、明渠段、竖井段、下平段和洞塞段；所述明渠段与所述竖井段垂直连通，所述竖井段与所述下平段垂直连通；所述洞塞段的数量为多段，且相互紧接。对洞塞消能工的连接方式、结构以及布置形式进行了改进，能减轻竖井段底板动力荷载，且利于竖井内空气排出。泄洪时水库中的水流由明渠流入竖井中，水流由无压流变为有压流，有利于减轻作用于竖井段底板的水动力荷载和利于洞内空气排出。泄洪洞洞塞段采用多级收缩式洞塞，具有良好的消能效果，能适应大流量、高水头工作条件。
Cave plug flood discharging cave connected through open channel
一种采用明渠连接的洞塞泄洪洞
TIAN ZHONG (author) / ZHU YANDE (author) / WANG WEI (author) / XU WEILIN (author) / LIU SHANJUN (author) / ZHANG JIANMIN (author) / DENG JUN (author) / QU JINGXUE (author) / ZHANG FAXING (author)
2020-12-08
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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