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Calculation method for sediment deposition of along-shore harbor basin

A technology of sedimentation and calculation methods, applied in calculation, special data processing applications, instruments, etc., can solve problems such as large forecast errors, and achieve the effect of clear principles, simple and fast use, and easy understanding

Inactive Publication Date: 2018-09-14
TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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Problems solved by technology

[0003] The characteristics of building a shore-side dock (dock basin) on the coastline: due to the influence of tidal water body and edge beach water flow, the sedimentation calculation of the shore-side dock basin is different from that of the general open channel sedimentation calculation , if the calculation method of sediment deposition along the general open channel is used, the forecast error will be large

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  • Calculation method for sediment deposition of along-shore harbor basin
  • Calculation method for sediment deposition of along-shore harbor basin
  • Calculation method for sediment deposition of along-shore harbor basin

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[0026] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0027] refer to Figure 1-Figure 7 , the specific implementation method adopts the following technical scheme: a method for calculating sediment deposition in the shore basin under the island group sea environment, comprising the following steps:

[0028] 1. Establish the water flow continuity equation and motion control equation in the shore basin

[0029] 1) Establish the flow balance equation of the ebb and flow of the harbor basin section;

[0030] see figure 2 , during the ebb tide process of the shore basin, on the one hand, the ebb tide prism Q L The water volume of the harbor basin is increased, and on the other hand, the water flow of the side beach increases a part of the flow Q y , so the ebb flow of the cross-section along the ban...

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Abstract

The invention discloses a calculation method for sediment deposition of an along-shore harbor basin and relates to a sediment deposition calculation method. The method comprises the following steps that 1, an along-shore harbor basin internal water flow continuous equation and movement control equation are established; 2, an along-shore harbor basin sediment deposition calculation formula is established; 3, a tide value water tank, with the size of 30 km*20 km, of the along-shore harbor basin is built; 4, the influence of different length-width ratios of the harbor basin on the flow field is analyzed; 5, a change relation between the length-width ratio of the along-shore harbor basin and a water flow regression index n is established; 6, the water flow regression index n is established; 7,based on the second step and the sixth step, the thickness of sediment deposition of the along-shore harbor basin is calculated. According to the calculation method, the precision of the calculationresult of sediment deposition of the along-shore harbor basin can be improved, and the reliable reference basis is provided for development of the along-shore harbor basin.

Description

technical field [0001] The invention relates to a method for calculating sediment deposits, in particular to a method for calculating sediment deposits in an along-shore harbor basin. Background technique [0002] The shore-side wharf is a common form of port construction layout, which has the advantages of making full use of the shoreline and concentrating the port area to facilitate dispatching and management. The piers face the sea directly, without the protection of breakwaters or natural barriers. Because the wharf is affected by tides and waves, the mechanism of sediment deposition is quite complicated. Since the front line of the along-shore wharf structure is generally in line with the natural shoreline, it has little impact on the flow path of the water flow in the near-shore area. Many researchers have done research on the sedimentation of along-shore harbor basins by means of mathematical models, physical models, and site surveys, but most researchers often use ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/13
Inventor 左书华杨华谢华亮崔成黄玉新刘涛张书庄孙治林董庆康鑫
Owner TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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