A water diversion system with pressure regulating function and its construction method

Abstract

The invention discloses a water diversion system with a pressure regulating function. The water diversion system comprises a pressure pipe trench(3) arranged between a river(1) and a highway(2) and inthe flow direction of the river(1), and a pressure regulating pipe trench(5) arranged along a slope(4); and the water pipe installation trench(3) is internally provided with anchor blocks A(8), and the pressure regulating pipe trench(5) is internally provided with anchor blocks B(10), a water diversion pipe(11) is arranged between the anchor blocks A(8), a pressure regulating pipe(9) is arrangedbetween the anchor blocks B(10), and the pressure regulating pipe(9) is in communication with a pressure regulating chamber(12). The invention further discloses a construction method of the water diversion system. The construction method includes the following steps of excavating the pressure pipe trench(3), pouring the anchor blocks B(10), installing the water diversion pipe(11), excavating the pressure regulating pipe trench(5), pouring the anchor blocks A(8), installing the pressure regulating pipe(9), and connecting the water diversion pipe(11) to river water and a water turbine. Accordingto the water diversion system, traditional surge shafts are canceled, energy of rough surge waves aredissipated through the pressure regulating chamber, and the water diversion system has the characteristics of small construction difficulty and short construction period.

Description

technical field [0001] The invention relates to the technical field of water diversion systems of hydropower stations, in particular to a water diversion system with a pressure regulating function and a construction method. Background technique [0002] The water diversion system of a hydropower station is a general term for hydraulic structures such as water intake and delivery from reservoirs or rivers to water turbines. According to the type of hydropower station and the terrain and geological conditions, the water diversion system includes a part of the building such as the water inlet of the hydropower station, the diversion channel, the pressure forebay, the surge chamber and the pressure pipeline. The non-pressure diversion channel water diversion system consists of an open water inlet, a non-pressure diversion channel, a pressure forebay and a pressure pipe. It is suitable for a non-pressure diversion hydropower station. To the pressure forebay, the diverted water f...

AI Technical Summary

Problems solved by technology

However, roads along the direction of the river are usually constructed between the surge shaft and the river, and the area of ​​the surge shaft is large, so many engineering equipment (excavators, earth moving vehicles, etc.) are put into the construction of the surge shaft, resulting in It has a great impact on the roads along the river, that is, it needs to be blocked for a long time, and the construction is very difficult, which prolongs the construction period

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