Opened backflow shutter type bulwark

A louver-type breakwater technology, applied in the direction of breakwaters, jetties, embankments, etc., can solve the problems of unobvious engineering volume of vertical breakwaters, poorer wave dissipation effect than slope embankments, unfavorable structural stability, etc., to achieve efficient reduction of wave energy, applicable Wide-ranging, reduced-requirement effects

Inactive Publication Date: 2013-04-10
HOHAI UNIV
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AI Technical Summary

Problems solved by technology

Slope-type breakwaters have a better wave dissipation effect, but the cost increases sharply as the water depth increases; vertical breakwaters increase the engineering volume with water depth increases, but the wave-dissipation effect is not as good as slope embankments, and because of the total reflection or partial reflection of waves Reflection, making the structure bear a large horizontal load, which is detrimental to the stability of the structure
[0003] In order to meet the needs of i...

Method used

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  • Opened backflow shutter type bulwark
  • Opened backflow shutter type bulwark
  • Opened backflow shutter type bulwark

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: refer to figure 2 Schematic diagram of the section of the breakwater. The outside of the breakwater body is a slope-type structure, and the inside is a caisson-type structure. The main external dimensions are determined according to the design specifications of the slope-type breakwater. The sizes of h1 and d1 are selected according to the design specification of the caisson breakwater.

[0021] The breakwater can also be appropriately changed according to different foundation conditions, different water conditions, and different economic requirements, so that the size of the trench and the interval can be changed to make it applicable to a wider range.

[0022] In order to verify the wave elimination effect of the open-flow louvered breakwater proposed by the present invention, based on the powerful function of UDF (user-defined macro) of the FLUENT software, a wave numerical simulation tank was established by the source-term wave-making method, and the b...

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PUM

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Abstract

The invention discloses an opened backflow shutter type bulwark which comprises a bulwark body in a slope external structure. The bulwark body is characterized in that the bulwark body inside is a swash height chamber in a caisson structure. A plurality of opened channels are arranged on the lower part of the bulwark body on the coastal side in a length direction. The opened channels are connected with the swash height chamber. A shutter structure is arranged on the upper part of the bulwark body in the sectional direction of the bulwark body. The shutter structure is connected with the swash height chamber and forms a wave channel with the opened channels. According to the bulwark provided by the invention, the wave height is reduced by the gap of the shutter, energy is consumed by the swash height chamber, and the action force by wave on the bulwark is reduced by backflow of the opened channels.

Description

technical field [0001] The invention relates to a breakwater, in particular to an open return louvered breakwater. Background technique [0002] The current structural types of breakwaters mainly include slope type and vertical type. Slope-type breakwaters have a better wave dissipation effect, but the cost increases sharply as the water depth increases; vertical breakwaters increase the engineering volume with water depth increases, but the wave-dissipation effect is not as good as slope embankments, and because of the total reflection or partial reflection of waves Reflection makes the structure bear a large horizontal load, which is detrimental to the stability of the structure. [0003] In order to meet the needs of international trade and the trend of large-scale transport ships, port construction has gradually entered deep-water open seas with deep water and large waves. Traditional breakwaters can no longer meet the needs of deep-water port development due to high co...

Claims

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Application Information

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IPC IPC(8): E02B3/06
CPCY02A10/11
Inventor 张淑华
Owner HOHAI UNIV
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