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Method for reconstructing multiple diversion tunnels into rotational flow vertical shaft flood discharge system
The invention discloses a method for reconstructing multiple diversion tunnels into a rotational flow vertical shaft flood discharge system, and belongs to the technical field of water conservancy and hydropower facility reconstruction. The method mainly comprises the following steps of (A) respectively building plugs in multiple diversion tunnels so as to plug inlets of the diversion tunnels; (B) building a rotational flow vertical shaft on the tail end of the plug of one diversion tunnel in the vertical direction; (C) building a newly-built lock chamber in a reservoir area, wherein the newly-built lock chamber is connected with a volute chamber of the rotational flow vertical shaft through a non-pressure tunnel; and (D) using the part, which is located on the downstream part of the plug, in each diversion tunnel as a downstream free flow spillway tunnel, wherein the downstream free flow spillway tunnel is connected with the lower straight section of the rotational flow vertical shaft through a pressure tunnel. The multiple diversion tunnels are connected through one rotational flow vertical shaft, so that all the diversion tunnels are effectively utilized, the utilization rate of a temporary release structure is greatly increased, and the discharge capacity of the whole rotational flow vertical shaft flood discharge system is also greatly increased.
本发明公开了一种将多条导流洞改建为旋流竖井泄洪系统的方法，属于水利水电设施改建技术领域。该方法包括以下主要步骤：A、在多条导流洞内分别修建堵头封堵住各导流洞的进口；B、在其中一条导流洞的堵头末端沿铅直方向修建旋流竖井；C、在库区建设新建闸室，新建闸室通过无压隧洞与旋流竖井的涡室衔接；D、将各导流洞中位于堵头下游的部分作为下游明流泄洪洞，下游明流泄洪洞通过有压隧洞与旋流竖井的下部直段衔接。采用一条旋流竖井将多条导流洞进行衔接，使所有导流洞都得到了有效利用，大幅提高了临时泄水建筑物的利用率，也大大提高了整个旋流竖井泄洪系统的泄流能力。
Method for reconstructing multiple diversion tunnels into rotational flow vertical shaft flood discharge system
The invention discloses a method for reconstructing multiple diversion tunnels into a rotational flow vertical shaft flood discharge system, and belongs to the technical field of water conservancy and hydropower facility reconstruction. The method mainly comprises the following steps of (A) respectively building plugs in multiple diversion tunnels so as to plug inlets of the diversion tunnels; (B) building a rotational flow vertical shaft on the tail end of the plug of one diversion tunnel in the vertical direction; (C) building a newly-built lock chamber in a reservoir area, wherein the newly-built lock chamber is connected with a volute chamber of the rotational flow vertical shaft through a non-pressure tunnel; and (D) using the part, which is located on the downstream part of the plug, in each diversion tunnel as a downstream free flow spillway tunnel, wherein the downstream free flow spillway tunnel is connected with the lower straight section of the rotational flow vertical shaft through a pressure tunnel. The multiple diversion tunnels are connected through one rotational flow vertical shaft, so that all the diversion tunnels are effectively utilized, the utilization rate of a temporary release structure is greatly increased, and the discharge capacity of the whole rotational flow vertical shaft flood discharge system is also greatly increased.
本发明公开了一种将多条导流洞改建为旋流竖井泄洪系统的方法，属于水利水电设施改建技术领域。该方法包括以下主要步骤：A、在多条导流洞内分别修建堵头封堵住各导流洞的进口；B、在其中一条导流洞的堵头末端沿铅直方向修建旋流竖井；C、在库区建设新建闸室，新建闸室通过无压隧洞与旋流竖井的涡室衔接；D、将各导流洞中位于堵头下游的部分作为下游明流泄洪洞，下游明流泄洪洞通过有压隧洞与旋流竖井的下部直段衔接。采用一条旋流竖井将多条导流洞进行衔接，使所有导流洞都得到了有效利用，大幅提高了临时泄水建筑物的利用率，也大大提高了整个旋流竖井泄洪系统的泄流能力。
Method for reconstructing multiple diversion tunnels into rotational flow vertical shaft flood discharge system
一种将多条导流洞改建为旋流竖井泄洪系统的方法
BU JINZI (author) / ZHAO XIANGTAO (author) / YAO LIANGXUE (author) / LI XINYING (author)
2021-08-17
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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