Ecological backwater type beach protection structure

Abstract

The invention discloses an ecological backwater type beach protection structure. The ecological backwater type beach protection structure is a precast concrete block pressure carrier. The precast concrete block pressure carrier is provided with a bottom plate. The center of the upper surface of the bottom plate is provided with an arch structure in the length direction. The length of the arch structure is equal to the width of the bottom plate. Compared with a traditional pressure carrier, the ecological backwater type beach protection structure can effectively increase the roughness of the bed for facilitating silt sediment when the water surges to the beach during flooding for further improving beach protection effects; in addition, the precast concrete block pressure carrier is hollow for slowing down the flow resistance as well as enabling the water to flow through for further enriching the change of the flow field around the beach, and the hollow precast concrete block structure also provides activity space for aquatic animals to improve the ecological environment around the beach to some extent.

Description

technical field [0001] The invention relates to a beach protection structure, in particular to an ecological backwater type beach protection structure. Background technique [0002] With the continuous development of waterway regulation projects in our country, there are more and more types of regulation structures, among which beach protection structures have become an important type of waterway regulation. At present, the existing beach protection structures are roughly divided into three categories: beach protection with loose throwing blocks, beach protection with dam body, and beach protection with soft row. Scattering block beach protection mainly refers to riprap beach protection, that is, scattering 50-80cm of rocks on the beach surface for beach protection. It is mainly used for small water depth (generally less than 3m) and low flow velocity ( Generally less than 1.5m / s), river bed deformation is relatively slow, and river sections with good geological conditions,...

AI Technical Summary

Problems solved by technology

However, judging from the waterway improvement projects that have been implemented so far, the damage or destruction of the used beach protection software is relatively serious, which directly affects the effect of waterway improvement. In addition, after the implementation of the existing beach protection projects, basically no sediment will appear The phenomenon of silting, and a certain degree of erosion will occur at the edge of the project area and other areas, which is also unfavorable to the stability of the building.

The main reason is that although the beach protection row above the dry water level is a relatively soft structure, after the row is laid, the undulating shape of the original natural bed surface is destroyed, and the surface of the ballast body is flat and sharp. Severe head scour damage

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