Rectifying energy-dissipating and anti-collision facility and design method thereof

By installing rectification, energy dissipation, and scour prevention facilities downstream of the dam, and utilizing the inverted V-shaped structure and staggered elevation differences, the problem of flow failure caused by water level changes downstream of the dam project was solved, achieving flow regulation and scour prevention effects, and improving the safety and resilience of the project.

CN122504152APending Publication Date: 2026-08-04福建省九龙江流域中心 +3
0 Cites 0 Cited by

Patent Information

Application Number
CN202611007002.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-08
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Downstream energy dissipation and scour prevention facilities in traditional dam projects are prone to failure due to changes in hydraulic boundary conditions when faced with river channel erosion, water level drops, or tidal fluctuations. This can lead to the failure of energy dissipation structures and scour damage, threatening the safety of the project.

Method used

Design a flow rectification and energy dissipation anti-scour facility, including a base plate, a first-height flow rectification pier, a second-height flow rectification pier, and a low-lying area. The staggered arrangement forms an inverted V-shaped structure to adapt to the downcutting of the riverbed and the drop in water level downstream of the dam, adjust the flow pattern, reduce the flow velocity, and avoid scouring of the anti-scour channel area.

Benefits of technology

It effectively eliminates drop flows, hydraulic jumps, and water surface fluctuations, improves the resilience of energy dissipation and scour prevention facilities, ensures the safety of dam projects, reduces engineering workload and investment, and adapts to flow pattern adjustments in response to water level changes.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This invention relates to the field of water conservancy and hydropower engineering technology, specifically to a rectification and energy dissipation anti-scour facility and its design method. The facility is located downstream of a dam or apron section and includes a base plate, a first-height rectification pier, a second-height rectification pier, and a low-lying area, with the three components intersecting in plan. Multiple first-height rectification piers are arranged in continuous rows, with a second-height rectification pier located at the junction of two adjacent piers in each row. The first-height rectification piers are inverted V-shaped, composed of three regular square prisms with side length *a* and height *h*, their axes of symmetry parallel to the water flow. The second-height rectification piers have a base with side length *a* and height *h'*, and one diagonal of their projected square is parallel to the water flow. The low-lying area is a square depression with side length *b*, one diagonal parallel to the water flow. The design method involves using a mathematical model to predict future water level and flow rate, combined with physical model experiments to determine unfavorable operating conditions and parameters. This invention eliminates cascading jumps, adapts to water level changes, requires minimal engineering work, and is used for anti-scour protection of dams, dikes, revetments, bridge piers, wharves, etc.
Need to check novelty before this filing date? Find Prior Art