Low-energy coastal beach restoration design method

A design method and coastal technology, applied in coastline protection, sea area engineering, water conservancy engineering equipment, etc., can solve problems such as beach mudification, achieve the effects of reducing beach mudification, increasing auxiliary aggregation effect, and increasing water depth

Active Publication Date: 2020-11-03
THIRD INST OF OCEANOGRAPHY MINIST OF NATURAL RESOURCES
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Problems solved by technology

[0004] The purpose of the present invention is to provide a low-energy coast beach restoration design method to solve the serious technical problem of beach mudification in the low-energy coast in the existing beach restoration technology

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  • Low-energy coastal beach restoration design method
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Embodiment Construction

[0026] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a low-energy coastal beach restoration design method. The method comprises the steps of constructing an outwards- protruding beach berm outer edge line, determining the transverse-to-longitudinal ratio of the beach berm outer edge line, determining the beach surface gradient, supplementing sand, determining a dredging area and dredging depth, and building a sand blocking dam. According to the method, the characteristic that waves gather on the headland in an auxiliary manner is utilized, the outwards-protruding headland-shaped beach berm outer edge line is constructed through a manual means, the needed beach face range and gradient are determined according to the outwards-protruding beach berm outer edge line, and sand supplementing is performed; when the beach is repaired, desilting is performed on the periphery of the beach face, the outwards-protruding near-shore terrain is constructed while a muddy material source is reduced and the near-shore water depth isincreased, the wave energy of the repaired position is effectively improved, and the situation of beach argillization of the low-energy coast is improved.

Description

technical field [0001] The invention relates to the technical field of coast restoration, in particular to a design method for low-energy coastal beach restoration. Background technique [0002] The beach is one of the most valuable areas in the coastal zone and is a valuable tourist resource in the coastal area. On the 18,000-kilometer coastline of our country, there are some coasts with small perennial wave heights, which are called low-energy coasts. Beach resources are often scarce on low-energy coasts. Due to poor beach activity in low-energy environments, muddy particles are easy to deposit and the elevation of the sand-mud boundary line is high, resulting in serious beach mudification. Therefore, it is extremely difficult to maintain artificial beaches on low-energy coasts. The fundamental reason why it is difficult to maintain low-energy coastal beaches is that the wave energy is relatively small. [0003] At present, domestic beach restoration is often done throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B1/00E02B3/02E02B3/10
CPCE02B1/00E02B3/02E02B3/10Y02A10/11Y02A10/30E02B3/04
Inventor 朱君蔡锋戚洪帅雷刚刘建辉郑金海郑吉祥张弛曹惠美
Owner THIRD INST OF OCEANOGRAPHY MINIST OF NATURAL RESOURCES
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