一、宽深比深比B~(1/2)/H值与航道最小水深关系 所谓宽深比是指河道断面宽度B的1/2次方与断面平均水深H的比值，既B~(1/2)/H。河流动力学中指出:这个公式反映天然河流在河道尺度增大的过程中,河宽增加远较水深增加为快的一般性规律。 我们通过长期的航道分析工作发现,过渡段滩脊最浅点所在的横断面上的浅滩部河宽、水深以及航槽部分的河宽、水深与航道好坏有一定关系。由此,根据宽深比关系 First, the ratio of depth to depth ratio B ~ (1/2) / H value and waterway minimum water depth The so-called aspect ratio refers to the river section width B of 1/2 the square of the average depth of the section H ratio, both B ~ ( 1/2) / H. It is pointed out in the river dynamics that this formula reflects the general law that the width of the river increases more rapidly than the depth of water when the natural river is enlarged. Through long-term waterway analysis, we found that the river width and water depth of the shoals on the cross-section where the shallowest point of the transitional section is the shallowest and the water depth and depth of the part of the navigation channel are related to the channel quality. Thus, according to the ratio of width to depth