Water-permeable spur dike capable of adjusting angle with river bank

Abstract

The invention discloses a water-permeable spur dike capable of adjusting the angle with a river bank. The water-permeable spur dike comprises a steel plate pile vertically arranged on one side of a riverway. A groove is vertically formed in the middle of the front side of the steel plate pile. A cuboid dike boy is vertically arranged at the position, on the front side of the groove, in the riverway. The dike body comprises a main dike body and an auxiliary dike body arranged in front of the main dike body to serve as an upstream face. A traction ring is transversely arranged at the lower position of the middle of the offshore face of the dike body. A steel twisted rope is fixed to the traction ring. The nearshore face of the dike body and the groove of the steel plate pile are hinged and fixed together through a hinge. The other end of the steel twisted rope is connected with a traction mechanism on the river bank. According to the water-permeable spur dike, the included angle betweenthe dike body and the river bank according to the requirement of the actual fairway depth, the size of water passing holes of the dike body can be controlled by changing the position of the auxiliarydike body, and therefore the flow speed of water flow is reduced stage by stage when water flow passes through a water-permeable spur dike group.

Description

technical field [0001] The invention relates to the technical field of waterway regulation, in particular to a permeable spur dam whose angle with the river bank can be adjusted. Background technique [0002] my country has a vast territory and rivers weave vertically and horizontally. Spur dam is the most commonly used regulation structure in river regulation projects. Its main function is to narrow the river channel when it is not submerged, increase the flow velocity to scour the shoal, and cause circulation after submersion, guide sand laterally, increase Channel water depth; silt up river bank, protect river bank, etc. [0003] The current spur dikes are basically gravity spur dikes. Once built, it is impossible to dismantle them at will. Moreover, traditional spur dikes not only have slow construction speed, high engineering cost, poor stability, and heavy maintenance workload at ordinary times. It is very difficult to carry out flood control and rescue on the spur dik...

AI Technical Summary

Problems solved by technology

[0003] The current spur dikes are basically gravity spur dikes. Once built, it is impossible to dismantle them at will. Moreover, the traditional spur dikes not only have slow construction speed, high engineering cost, poor stability, and heavy maintenance workload at ordinary times. It is also very difficult to carry out flood control and rescue on the spur dam in critical moments, and it cannot play the role of flood control and bank protection and stabilizing the river regime; in addition, the water flow of the existing spur dam is fixed, and the impact of the water flow on the first dam The force is relatively large, and the impact of the water flow on the tail dam is relatively small, so the first dam is easily damaged

[0004] Designed from the perspective of existing hydrodynamics and structural mechanics, the safety of aquatic organisms such as fish is rarely considered, and a good ecological environment is not created

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