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Method for constructing drainage hole for water conservancy project

A technology of water conservancy projects and discharge holes, which is applied in water conservancy projects, sea area projects, buildings, etc. It can solve the problems of damage to the discharge device and fast water flow at the discharge point, and achieve the effect of improving work efficiency and fixing performance

Inactive Publication Date: 2018-08-21
HENAN VOCATIONAL COLLEGE OF WATER CONSERVANCY ANDENVIRONMENT
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] For bottom flow energy dissipation, although the water flow can be vented at present, the water flow at the discharge point is fast, which is easy to cause damage to the discharge device. How to fix the discharge device and achieve a stable connection is a technical problem for the discharge device.

Method used

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  • Method for constructing drainage hole for water conservancy project
  • Method for constructing drainage hole for water conservancy project
  • Method for constructing drainage hole for water conservancy project

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specific Embodiment approach

[0023] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS: The following is a specific explanation of the structure defined by the present invention with reference to the contents of the drawings in the specification.

[0024] A discharge hole for water conservancy projects, the discharge hole is used in the lower part of the weir body, and is used for the bottom flow. The discharge hole is a steel pipe 1 discharge hole, and the steel pipe 1 runs through the weir body, and the steel pipe 1 is at both ends All are provided with an enlarged part 2, the enlarged part 2 is a tapered structure, the diameter of the middle part of the steel pipe 1 remains unchanged, the steel pipe 1 is fixed by connecting the steel bars and the steel bars inside the weir body, and the upstream of the weir body The water facing surface is provided with a chute 4 on the water facing surface of the weir body. There are two chutes 4, which are respectively located on the upper and lower sides of the discha...

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Abstract

The invention provides a drainage hole for a water conservancy project. According to the drainage hole for the water conservancy project, a steel pipe penetrating through a weir body is arranged, andthe steel pipe is connected with steel bars, so that the fixing performance of a drainage device is improved; a cover plate is arranged and is used for achieving control on the working state of the drainage device; and a sliding groove is arranged to realize the movement of the cover plate, so that the working efficiency of the drainage device is improved.

Description

technical field [0001] The invention relates to water conservancy projects, in particular to a method for constructing discharge holes for water conservancy projects. Background technique [0002] Water conservancy projects are an important form of engineering in my country. According to their functions, they can be divided into flood control buildings, irrigation, power generation and other building forms. In water conservancy projects, buildings often have the functions of water retaining and drainage. Especially for the dam body used in the reservoir and the cofferdam structure in the construction process, it is often necessary to install a discharge device to vent excess water. [0003] The discharge device is generally divided into surface flow and low flow. Surface flow is the discharge of water flow on the surface of hydraulic structures. This discharge method often requires the dam or weir to have anti-scouring protection devices, and generally requires hydraulic eng...

Claims

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Application Information

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IPC IPC(8): E02B8/06
CPCE02B8/06
Inventor 芈书贞张瑜王玲玲张银华周琼
Owner HENAN VOCATIONAL COLLEGE OF WATER CONSERVANCY ANDENVIRONMENT
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