Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-arch-dam flood discharge and energy dissipation structure of narrow river valley and deep tail water

A deep tailwater and high arch dam technology, applied in water conservancy projects, sea area engineering, coastline protection, etc., can solve the ecological environment and hub area slope damage and impact, flood discharge atomization impact degree and large protection range, protection engineering Large amount of engineering investment and other issues, to achieve extensive guidance and promotion significance, good social and economic benefits, reduce the effect of construction difficulty

Active Publication Date: 2012-10-17
POWERCHINA BEIJING ENG
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above methods often lead to a greater impact on flood discharge atomization and protection range, greater damage and impact on the ecological environment and the slope of the hub area, complex energy dissipation structure, difficult construction, large amount of protection engineering and engineering investment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-arch-dam flood discharge and energy dissipation structure of narrow river valley and deep tail water
  • High-arch-dam flood discharge and energy dissipation structure of narrow river valley and deep tail water
  • High-arch-dam flood discharge and energy dissipation structure of narrow river valley and deep tail water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0025] Such as Figure 1-6 As shown, the flood discharge and energy dissipation structure of the high arch dam with narrow river valley and deep tail water of the present invention includes a dam body 1 on which an upper orifice 2 and a lower orifice 3 are arranged, so that the discharged water flow is stratified and the large differential outflow , the concrete apron 4 and the revetment 5 on both banks are set in the downstream of the dam. Wherein 2a is the upper orifice of the raised angle structure with a smaller angle, and 2b is the upper orifice of the depressed angle structure with a smaller angle. The lower orifice 3 is a slit-type middle hole with a flat bottom angle, contraction on both sides, and vertical diffusion.

[0026] In order to reduce the intensity and scope of the impact of flood discharge atomization and control the locati...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-arch-dam flood discharge and energy dissipation structure of a narrow river valley and deep tail water. An upper-layer hole and a lower-layer hole are distributed on a dam body; two dams do not need to be arranged at the downstream of the dam to form a closed water cushion pool; and only a concrete apron and revetments at two banks need to be arranged. The upper-layer hole adopts combined outflow of an overlooking angle with a small angle and a depression angle with a small angle; and the lower-layer hole adopts narrow seam type outflow of a flat bottom angle, two-side shrinking and vertical dispersion, and discharged water flows of the upper-layer hole and the lower-layer hole are not collided in the air. The two paths are not arranged; and the outflow of the upper-layer hole is controlled to be the smaller angle so as to control the degree and the range of a drop point and atomization of a water tongue. According to the high-arch-dam flood discharge and energy dissipation structure, the characteristic of a water depth of a three-dimensional space dispersed energy dissipation and downstream energy dissipation region is sufficiently utilized, so that the structure form of an energy dissipation and protection facility is simplified, the damages and influences on an ecological environment and a side slope of a nodal region are reduced, the construction difficulty is reduced, and the engineering amount and the engineering investment are reduced; and therefore, good social benefits and economic benefits are obtained.

Description

technical field [0001] The invention relates to a flood discharge and energy dissipation structure in a water conservancy and hydropower project, in particular to a high arch dam flood discharge and energy dissipation structure with narrow valleys and deep tail water in a canyon area. Background technique [0002] Arch dams are generally set in canyon areas, and high arch dams usually use the dam body to set up orifices for flood discharge, so that the discharged water collides in the air or pulls the water tongue in the air to partially dissipate energy; For protection issues, two dams are often arranged to form a closed water cushion pond to provide the water depth required for energy dissipation, and the discharged water falls into the water cushion pond for energy dissipation. [0003] However, the above-mentioned methods often lead to greater impact and protection range of flood discharge atomization, greater damage and impact on the ecological environment and the slope...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E02B8/06
Inventor 邓毅国王毅鸣苏岩林健勇李贺林周飞平梁宗祥吴宝琴
Owner POWERCHINA BEIJING ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products