A Design Method for Water Body Exchange Channel in Surrounding Port Area

Abstract

The invention discloses a design method of an encircled harbor area water exchange passage. The method comprises the following steps: on the basis of an established and verified two-dimensional tide numerical model, adding a convective-diffusion module to calculate a material transmission process; evaluating and analyzing the water exchange effect of the harbor area by virtue of the calculating convective-diffusion module; analyzing key factors determining the water exchange capacity of the encircled harbor area as well as a water exchange passage selecting principle; constructing single-passage and multi-passage harbor area water exchange effect researches; and forming the design method of the encircled harbor area water exchange passage. By simulating the construction of encircled harbor areas in different engineering schemes, the design method disclosed by the invention can analyze the water exchange effects of the encircled harbor areas, discover the key factors determining the water exchange capacity of the encircled harbor areas as well as the water exchange passage selecting principle, and research the single-passage and multi-passage water exchange effects of harbor area construction.

Description

technical field [0001] The invention relates to a design method for a water body exchange channel in an encircling port area, and belongs to the technical field of port waterway engineering. Background technique [0002] In recent years, with the rapid development of my country's port economy, deep-water coastline resources have become increasingly scarce. The construction of an encircling port area can effectively increase shoreline resources, and at the same time prevent waves and sand, and improve the stability of mooring conditions. However, the surrounding port area has the characteristics of weak water body exchange capacity, and the water body exchange channel is an effective method to improve the water body exchange capacity of the surrounding port area. [0003] At present, the research on improving the water exchange capacity of the surrounding port area by using water exchange channels is mainly about the application of the numerical method of the convection-diff...

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Problems solved by technology

He Jie et al. proposed in the article "Research on Water Exchange Capacity of Dig-in Dock Basin" published in the Supplement of "Journal of Hydraulic Science" in October 2007, taking the dug-in harbor basin in Nansha Port Area of ​​Guangzhou Port as an example, through the numerical value of tidal current movement Simulating and calculating the tidal volume of the section of the river, and discussing the location and opening method of the connecting river, can effectively play the role of the exchange between the harbor basin and the external water body, but this method still has the following obvious shortcomings: First, the mechanism of water exchange capacity The understanding is not clear, and the engineering measures plan lacks theoretical basis; second, the cross-sectional size of the water body exchange channel has not been studied, and the design parameters of specific engineering measures have not been given

Zhang Wei et al. proposed in the article "Study on Water Exchange and Improvement Measures of Surrounding Harbor Basin" published in "Water Transport Engineering" Issue 04, 2013, taking the planned Xuwei Port Area of ​​Lianyungang as an example, using the convection and diffusion model method to simulate Calculating the half-exchange period of the water body in the encircling harbor basin under the action of tidal currents, in order to explore the engineering measures and effects of improving the water quality of the harbor basin, but this method also has the following obvious shortcomings: first, the mechanism of water exchange in the harbor area has not been studied; The design parameters of the engineering measures are not specified

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