Method and device for measuring parameters of grait sand waves

Abstract

The invention discloses a method and a device for measuring the parameters of grait sand waves in the upper reaches of Yangtze River. The method comprises the steps of analyzing factors, which influence the sand waves, by a single factor way according to test data, and carrying out relationship fitting to obtain a sand wave height expression. The method provided by the invention is used for measuring the dimension and the movement velocity of the grait sand waves in the upper reaches of Yangtze River. The method comprises the following steps of: systematically researching the movement low of the grait sand waves according to an indoor flume experiment and site inspection data analysis, expressing the factors, which influence the movement velocity of the sand waves, by an equation, fitting the factors with test flume data to obtain an equation of the wave velocity, analyzing the factors, which influence the height and the length of the sand waves, by the single factor way according to the test data, and carrying out the relationship fitting to obtain the height and the length of the sand waves. The method and the device have great significance for judging the grait sand wave navigation obstacle characteristic and the grait sand wave beach risk governance, so that the maintenance management level of the channel in the upper reaches of Yangtze River and the whole trafficability of the channel in the Xu-Yu segment can be improved, and the quick development of the Yangtze river transportation can be promoted.

Description

technical field [0001] The invention belongs to the technical field of sand wave research on pebbles, and in particular relates to a method and a device for measuring sand wave parameters of pebbles. Background technique [0002] The Yibin-Chongqing section of the upper reaches of the Yangtze River (referred to as the Xuyu section), with a total length of 385km, is joined by tributaries such as the Minjiang River, Tuojiang River, Changning River, Chishui River, and Qijiang River. The drainage basin covers Sichuan, Guizhou, Yunnan, and Chongqing. Since ancient times, the Syria-Chongqing waterway has been the main artery of water transport connecting Sichuan, Guizhou, and Chongqing. As an important water channel between the provinces along the river in the west and the middle and lower reaches of the Yangtze River and the coastal areas, the Syria-Chongqing waterway occupies a very important position in the western transportation network. [0003] Some key shoal hazards in the ...

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method and device for measuring the parameters of pebble sand waves, aiming to solve the problems that the law of water and sand movement of pebble sand waves is difficult to grasp, the control is difficult, the control effect is difficult to maintain, and the navigation is quite serious.

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