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Double-groove hedging energy dissipation method and spillway thereof
The invention discloses a double-groove hedging energy dissipation method and a spillway thereof. According to the double-groove hedging energy dissipation method, water flow is subjected to hydraulic adjustment under the action of water flow gravity through the structural arrangement of a left-level discharge chute, a right-level discharge chute and a high-level discharge chute, and the hedging energy dissipation effect is achieved above the tail part of the discharge chutes; the spillway is provided with left and right high and low discharge chutes, that is, a high-side discharge chute and a low-side discharge chute, meanwhile, the overflow weir is divided into left and right gate holes by gate piers, the gate piers extend to the bottom of the overflow weir, at the bottom of the overflow weir, a bottom plate of the high-side discharge chute is lifted through a turning transition section, the high-side discharge chute is higher than the low-side discharge chute, and after passing through a turning transition section, the high-side discharge chute and the low-side discharge chute pass through the turning transition section. The double discharge chutes are arranged at the same slope ratio; when approaching the tail part of the discharge chute, the double discharge chute adjusts the water flow direction through the gradually-changed turning section again, and the water flow is subjected to hedging energy dissipation again by changing the arrangement mode of the bottom plate and the two side walls of the discharge chute at the tail end of the discharge chute, so that the situation that the high-speed water flow is directly converging into a stilling pool is prevented, and the structure of an energy dissipater can be effectively optimized.
本发明公开了一种双槽对冲消能方法及其溢洪道，该方法是将水流通过左右高低两级泄槽的结构布置，在水流重力作用下进行水力调整，在泄槽尾部上空形成对冲消能效果。具体是将溢洪道设置左右高低双泄槽，即高侧泄槽和低侧泄槽，同时，溢流堰以闸墩分为左右两个闸孔，闸墩一直延伸至溢流堰底部，在溢流堰底部，高侧泄槽底板通过转弯渐变段抬高，高侧泄槽高出低侧泄槽，经过渐变转弯段后，双泄槽以相同坡率布置；接近泄槽尾部时，双泄槽再次通过渐变转弯段调整水流方向，在泄槽末端通过改变泄槽底板及两侧边墙的布置方式，再次将水流对冲消能，从而避免高速水流直接汇入消力池，可有效优化消能工结构。
Double-groove hedging energy dissipation method and spillway thereof
The invention discloses a double-groove hedging energy dissipation method and a spillway thereof. According to the double-groove hedging energy dissipation method, water flow is subjected to hydraulic adjustment under the action of water flow gravity through the structural arrangement of a left-level discharge chute, a right-level discharge chute and a high-level discharge chute, and the hedging energy dissipation effect is achieved above the tail part of the discharge chutes; the spillway is provided with left and right high and low discharge chutes, that is, a high-side discharge chute and a low-side discharge chute, meanwhile, the overflow weir is divided into left and right gate holes by gate piers, the gate piers extend to the bottom of the overflow weir, at the bottom of the overflow weir, a bottom plate of the high-side discharge chute is lifted through a turning transition section, the high-side discharge chute is higher than the low-side discharge chute, and after passing through a turning transition section, the high-side discharge chute and the low-side discharge chute pass through the turning transition section. The double discharge chutes are arranged at the same slope ratio; when approaching the tail part of the discharge chute, the double discharge chute adjusts the water flow direction through the gradually-changed turning section again, and the water flow is subjected to hedging energy dissipation again by changing the arrangement mode of the bottom plate and the two side walls of the discharge chute at the tail end of the discharge chute, so that the situation that the high-speed water flow is directly converging into a stilling pool is prevented, and the structure of an energy dissipater can be effectively optimized.
本发明公开了一种双槽对冲消能方法及其溢洪道，该方法是将水流通过左右高低两级泄槽的结构布置，在水流重力作用下进行水力调整，在泄槽尾部上空形成对冲消能效果。具体是将溢洪道设置左右高低双泄槽，即高侧泄槽和低侧泄槽，同时，溢流堰以闸墩分为左右两个闸孔，闸墩一直延伸至溢流堰底部，在溢流堰底部，高侧泄槽底板通过转弯渐变段抬高，高侧泄槽高出低侧泄槽，经过渐变转弯段后，双泄槽以相同坡率布置；接近泄槽尾部时，双泄槽再次通过渐变转弯段调整水流方向，在泄槽末端通过改变泄槽底板及两侧边墙的布置方式，再次将水流对冲消能，从而避免高速水流直接汇入消力池，可有效优化消能工结构。
Double-groove hedging energy dissipation method and spillway thereof
一种双槽对冲消能方法及其溢洪道
LIU JINYANG (author) / ZHANG YANXIA (author) / SHUAI SHIJIE (author)
2021-04-30
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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