A riverbank protection structure based on flow-sediment coupling in a river bend

By combining fins and guide vanes with automated drive components, active erosion and siltation protection for river bends is achieved, solving the problems of high protection costs and poor long-term effectiveness in existing technologies, and improving the stability and adaptability of the riverbank protection.

CN122304320APending Publication Date: 2026-06-30SICHUAN SHUIFA SURVEY DESIGN & RES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN SHUIFA SURVEY DESIGN & RES CO LTD
Filing Date
2026-06-03
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing riverbank protection projects in river bends cannot be actively regulated in accordance with the natural laws of water flow-sediment coupling, resulting in high protection costs, poor long-term effectiveness, and inability to adapt to different hydrological conditions. They are also prone to failure due to changes in water flow dynamics.

Method used

The system employs a fin and guide plate structure. The fins guide the near-shore water flow at the inlet to change its initial direction, while the guide plate optimizes the centrifugal flow in the bend, forming a natural silt protection layer. Combined with drive components such as motors, gears, and racks, it achieves automated control, forming an active anti-scour and siltation protection system.

Benefits of technology

It significantly improves the long-term effectiveness and stability of the bank protection in the bend section, realizes precise control of water flow pattern and natural sedimentation, reduces protection costs, and improves the intelligence level and hydrological adaptability of the structure.

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Abstract

This invention discloses a river bend revetment structure based on flow-sediment coupling, relating to the field of hydraulic engineering. It includes: several fins located at the inlet end of the bend and distributed on both sides of the river channel; and a guide plate erected in the middle of the river channel within the bend, the guide plate being arranged along the length of the river channel. The fins are rotatably connected to the river channel sidewall and rotated by a first driving component, allowing the end of the fin facing the bend to rotate into the river channel. The guide plate is rotatably connected to the middle of the river channel and rotated by a second driving component, allowing the end of the guide plate away from the inlet end to rotate towards both sides of the river channel. Using this design, the fins can guide the near-shore flow at the inlet end to change its initial direction, reducing direct impact on the bend end bank slope. The guide plate optimizes the centrifugal flow state of the bend, guiding the sediment carried by the flow to naturally accumulate at the bank foot, forming a natural sediment protection layer.
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