我国很多港口处于潮汐河口地区。一般,这些处于天然状态的河口都有碍航的拦门沙,致使有些水较深的港口因近岸进港航道水深不足,迫使船舶需要候潮进出港口。所以,充分利用潮位是提高港口和入海航道通过能力的重要措施之一。 目前,很多港口采取疏浚方法来增加浅滩航槽的水深;但是,疏浚工程费用大,需 Many of our ports are in the tidal estuary. Ordinarily, these natural estuaries have barricades that hinder navigation. As a result, some ports with deeper water supply are inundated by inland waterways, forcing the vessels to wait for the tide to enter and leave the port. Therefore, taking full advantage of the tide level is one of the important measures to improve the capacity of passing the port and entering the seaway. At present, many ports adopt dredging methods to increase the depth of shoals. However, dredging projects are expensive and require