A kind of river navigation maintenance method

Abstract

The invention discloses a maintenance method for river navigation. The maintenance method for river navigation comprises the step of arranging a spur dike at a shallow-water navigation obstruction reach of a river. The maintenance method for river navigation is characterized in that the spur dike is designed to be of the structure that a dike body can extend towards the river and retract away from the river, the water level of the river is monitored in real time, and when the water level is lower than the preset value range, the spur dike is controlled to extend so that the water level can be increased to be within the preset value range; and when the water level is beyond the preset value range, the spur dike is controlled to retract so that the water level can be decreased to be within the preset value range. The maintenance method for river navigation has the advantages that the water level of a channel can be adjusted automatically, the requirements for navigation and flood prevention of the river can be well met, the dike body is protected against flood, and the maintenance method is suitable for rivers of which water levels vary greatly during flood and drought periods.

Description

technical field [0001] The invention belongs to the field of river management, and in particular relates to a method for maintaining river navigation. Background technique [0002] A groyne is a hydraulic structure used for river regulation, because one end of it is connected to the river bank, and the other end extends into the water, forming a "D" shape with the embankment, so it is called a groyne. The main function of the spur dike is to protect the river bank from erosion caused by the direct erosion of the incoming flow. At the same time, it also plays an important role in improving the channel, maintaining the river facies and protecting the diversity of water ecology. In the 2014 government work report of the State Council, the development strategy of "relying on the golden waterway and building the Yangtze River Economic Belt" was put forward, which brought great opportunities for the development of my country's inland shipping industry. With the development of inl...

AI Technical Summary

Problems solved by technology

Although this form of spur dam has the advantages of simple structure and convenient construction, it also has the following disadvantages: (1) The navigation and flood control functions of the river often have certain contradictions. Structures are also vulnerable to flood damage

(2) The spur dam is a fixed building structure with limited water level adjustment function, lack of self-adaptive adjustment ability, and cannot adjust the applicable water level according to the incoming flow

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