Ecological environmental-protection permeable spur dike structure

Abstract

The invention relates to an ecological environment-friendly permeable spur dam structure, which is composed of a bottom protection structure and a spur dam structure. The bottom protection structure consists of a geotechnical water-proof material layer, a slurry block stone layer, a block stone layer, and crushed stone in sequence from bottom to top. The crushed stone layer is only laid within the scope of the spur dike structure, and gabion cages are set on the outer edge of the bottom protection structure, and then the bottom protection structure is leveled, and the spur dike structure is installed on the leveled gravel layer. The spur dam structure is spliced ​​by dam root, dam body and dam head; the dam root is spliced ​​by several solid components, the bottom is a plane, and the upper part is a slope structure composed of a water-facing slope and a back-water slope. The dam body is spliced ​​by several permeable components. The upper part of the permeable components is a slope structure composed of a facing slope and a backwater slope, and a permeable hole is set in the middle. The permeable hole of the permeable component is in the form of an arch hole, which reduces the turbulence of the water flow at the permeable hole and the erosion of the dam body, and reduces the damage to the fish in the water body.

Description

technical field [0001] The invention relates to the field of design and construction of a spur dike for waterway regulation, in particular to an ecological environment-friendly permeable spur dike structure. Background technique [0002] Spur dikes play an important role in adjusting water flow structure and improving local waterway conditions, and are one of the most commonly used renovation structures on the Yangtze River. However, due to the complex water flow structure and hydraulic characteristics, the foundation and sediment at the head and root of traditional spur dikes are scoured and eroded all the year round, resulting in hollowed out foundations or local scour pits, which reduces the stability of the dam body , Inducing flooding of spur dams. Compared with solid spur dikes, permeable spur dikes have the advantages of smaller local scour depth at the dam head, slowing down the flow velocity of water passing through the dam, adapting to various flood standards, and...

AI Technical Summary

Problems solved by technology

The spur dikes mentioned above all have their own advantages, but also have their disadvantages and limitations

The gabion spur dam is cheap but lacks in integrity; the permeable pile dam and the hydraulic insert spur dam are both suitable for use in the sandy river section, but not suitable for the application in the Yangt

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