Flow guiding engineering for river gate dam and spillway

Abstract

A diversion facility used for river gates and flooding roads, including two sections of the tablet, of which, of which the inner side of the first stage is a cone surface, the outer side is cylindrical surface, the top surface, and the bottom bottom surfaceFor the plane, the inner side of the second section is the twist surface, and the outer side is the plane, the top surface, and the bottom surface of the column surface of the first section of the table.During the installation, the end of the second section of the tablet is cut into the edge wall of the edge of the river gates or the imported of the overflowing road.This kind of diversion facilities effectively solve the problem of the water flow of the water flow in front of the river gauge dam and before the import of flooding roads.In order to further improve the flow of water flow, the establishment of the establishment of a guide wall can be added. One end of the vertical guide wall is connected with the gradient tail of the second stage of the table, and the other end is compared with the side wall of the edge wall of the river gauge or overflowing road.catch.For many projects, the first section can be extended to the shore to connect with the river bank, and the surrounding land can also be used.

Description

technical field [0001] The invention belongs to diversion facilities used in water conservancy and hydropower projects, in particular to a diversion facility applied before the entrance of river gates and dams and spillways. Background technique [0002] In the design and layout of flood discharge gate holes in water conservancy and hydropower projects, since the river section where the hub is located is relatively wide, the discharge gate holes are often arranged in the center of the river channel, which only occupies a part of the river section, and the rest is the dam body. Under normal circumstances, when the side hole flows through, the lateral contraction of the water flow is often very severe, and the flow state of the water flow is not good, which will obviously reduce the discharge capacity of the gate hole, and also affect the transportation of sediment, resulting in an increase in the amount of sediment in front of the dam. . Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of diversion facility to solve the problem of excessive lateral contraction of the water flow in front of the river sluice dam and the entrance of the spillway, and at the same time improve the flow state of the water flow in front of the gate and the entrance of the spillway and reduce the deposition of sediment quantity

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