Sediment underwater repose angle-based riverbed adjustment method
An adjustment method and a technology of angle of repose, applied in the field of solving the scour-silting deformation of the riverbed surface, can solve the problems of not meeting the stability requirements of sediment particles and the unevenness of the riverbed
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[0090] The technical solutions of the present invention will be described in detail below, but the protection scope of the present invention is not limited to the embodiments.
[0091] A river bed adjustment method based on the underwater angle of repose of sediment. The horizontal distance between node i and its four adjacent nodes is defined as unit length 1, the angle of repose of sand is 45 degrees, and the height of point i and its adjacent nodes is : Assume that the height of the i node is 5, and the heights of its surrounding nodes are set to 12.8, 11.2, 5.5, and 8.9, respectively.
[0092] The process of adjusting the river bed is as follows:
[0093] (1) Calculate the slope ratio coefficient (a 1 , a 2 , a 3 , a 4 ,)=(1, 1, 0, 1).
[0094] (2) Calculate the classification coefficient C=(3,0), and it can be known as an S3 type node according to the classification basis.
[0095] (3) Calculate the ideal adjustment height and sort it from small to large as follows,...
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