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A platform for research: civil engineering, architecture and urbanism
River channel type energy dissipation overflow dam
The invention relates to the technical field of water conservancy project energy dissipation, in particular to a river channel type energy dissipation overflow dam which comprises an overflow dam body, a drop sill, a plunge pool, a tail sill and an anti-scour pad. Wherein the drop sill is located on the downstream side of the overflow dam body, the plunge pool is located on the downstream side of the drop sill, the tail sill is located at the tail end of the plunge pool, and the scour prevention pad is connected with the tail sill. Compared with the prior art, the river channel type energy dissipation overflow dam adopts a combined energy dissipation mode and is subjected to triple energy dissipation, in the first energy dissipation mode, when water flow on the top of the dam flows through a drop sill, strong turbulent flow is generated, the water flow makes more sufficient contact with air, and most potential energy is consumed; secondary energy dissipation is conducted, specifically, the drop sill water flow is injected into the plunge pool, a water cushion in the plunge pool dissipates the energy, and meanwhile the strong water flow is prevented from impacting a riverbed; and thirdly, energy dissipation is conducted, wherein the remaining capacity is further dissipated through an anti-scour pad, and meanwhile the downstream riverbed is protected against scour.
本发明涉及水利工程消能技术领域，具体为一种河道型消能滚水坝，包括滚水坝坝体、跌坎、水垫塘、尾坎和防冲垫；其中所述跌坎位于所述滚水坝坝体的背水侧，所述水垫塘位于所述跌坎下游侧，所述尾坎位于所述水垫塘末端，所述防冲垫与所述尾坎相连。与现有技术相比，本发明提供一种河道型消能滚水坝采用联合消能方式经过三重消能，第一重消能：坝顶水流流经跌坎时发生强烈的紊流，与空气接触更加充分，消耗大部分势能；第二重消能：跌坎水流入射至水垫塘，水垫塘内的水垫对能量进行消散，同时防止强烈的水流冲击河床；第三重消能：剩余能力经防冲垫进一步消散，同时保护下游河床免受冲刷。
River channel type energy dissipation overflow dam
The invention relates to the technical field of water conservancy project energy dissipation, in particular to a river channel type energy dissipation overflow dam which comprises an overflow dam body, a drop sill, a plunge pool, a tail sill and an anti-scour pad. Wherein the drop sill is located on the downstream side of the overflow dam body, the plunge pool is located on the downstream side of the drop sill, the tail sill is located at the tail end of the plunge pool, and the scour prevention pad is connected with the tail sill. Compared with the prior art, the river channel type energy dissipation overflow dam adopts a combined energy dissipation mode and is subjected to triple energy dissipation, in the first energy dissipation mode, when water flow on the top of the dam flows through a drop sill, strong turbulent flow is generated, the water flow makes more sufficient contact with air, and most potential energy is consumed; secondary energy dissipation is conducted, specifically, the drop sill water flow is injected into the plunge pool, a water cushion in the plunge pool dissipates the energy, and meanwhile the strong water flow is prevented from impacting a riverbed; and thirdly, energy dissipation is conducted, wherein the remaining capacity is further dissipated through an anti-scour pad, and meanwhile the downstream riverbed is protected against scour.
本发明涉及水利工程消能技术领域，具体为一种河道型消能滚水坝，包括滚水坝坝体、跌坎、水垫塘、尾坎和防冲垫；其中所述跌坎位于所述滚水坝坝体的背水侧，所述水垫塘位于所述跌坎下游侧，所述尾坎位于所述水垫塘末端，所述防冲垫与所述尾坎相连。与现有技术相比，本发明提供一种河道型消能滚水坝采用联合消能方式经过三重消能，第一重消能：坝顶水流流经跌坎时发生强烈的紊流，与空气接触更加充分，消耗大部分势能；第二重消能：跌坎水流入射至水垫塘，水垫塘内的水垫对能量进行消散，同时防止强烈的水流冲击河床；第三重消能：剩余能力经防冲垫进一步消散，同时保护下游河床免受冲刷。
River channel type energy dissipation overflow dam
一种河道型消能滚水坝
WANG LIBIN (author) / LIU SHUO (author) / TIAN WENGAO (author) / LIU HONGXI (author) / HUANG YUEXIN (author)
2023-04-07
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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