Artificial channel drainage sandbeach sedimentation reducing system

A technology of water injection system and beach, applied in artificial waterways, water conservancy projects, sea area projects, etc., can solve the problems of mud formation, complicated beach dredging work, and difficulty in keeping the beach clean for a long time, so as to increase diversity and biodiversity. Enriching and reducing the effect of natural disasters

Active Publication Date: 2020-04-10
HOHAI UNIV
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Problems solved by technology

[0005] The dredging of the beach is complicated and requires a lot of manpower and material resources. Once the muddy phenomenon of the beach is formed in the area, even after a short period of manual dredging, muddying will still occur after a period of time. Repeated cleaning is required, and it is difficult to maintain the beach for a long time. clean

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  • Artificial channel drainage sandbeach sedimentation reducing system

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Embodiment 1

[0043] Embodiment 1: The length of the silted zone of the silt beach 2 along the coast is 230m, and the length of the excavated water injection ditch 1 is 240m. The extremely high water level in this sea area once in a century is 5.90m, the design high water level is 4.83m, the design low water level is 0.57m, and the extremely low water level in a century is -0.63m. The slope of the silt beach is 1:60, and the elevation of the excavation sideline of the dug water injection ditch 1 is 5.95m. The width of the dug water injection ditch 1 is 1.5m, and the excavation depth is 0.5m. There is a swimming pool behind the silt beach 2, and the water in the swimming pool needs to be replaced regularly. After the water in the swimming pool is initially filtered, it is injected into the water injection ditch 1. The outer walls 6 on both sides of the water injection ditch 1 are protected by water-permeable plastics. The water injection time is set to 4 hours, and the water injection star...

Embodiment 2

[0044] Embodiment 2: There are two silt zones in the silt beach 2, the lengths of which are 100m and 50m along the coast respectively, and the lengths of the dug water injection ditch 1 are 110m and 60m. The extremely high water level in this sea area once in a century is 6.30m, the design high water level is 5.33m, the design low water level is 1.37m, and the extremely low water level in a century is 0.63m. The slope of the silt beach is 1:50, and the elevation of the excavation sideline of the dug water injection ditch 1 is 6.35m. The width of the dug water injection ditch 1 is 1m, and the excavation depth is 0.5m. It has been detected that the salinity in the silt beach is relatively high, and the water from the open sea 3 can be directly injected into the water injection ditch 1 . In this embodiment, the water injection system is a temporary project, and the water injection system 7 will be dismantled after the muddy state of the silt beach is effectively alleviated, so t...

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Abstract

The invention discloses an artificial channel drainage sandbeach sedimentation reducing system, and belongs to the technical field of coastal wetland ecological restoration. The artificial channel drainage sandbeach sedimentation reducing system is arranged on the silt beach side of an open sea and comprises a water injection ditch, a drainage passageway, outer walls and a water injection system.The water injection ditch is arranged on the rear land of the silt beach, the water injection system and the water injection ditch cooperate with each other, water is injected into the water injectionditch all the time, the outer walls are arranged on the two sides of the water injection ditch, water in the water injection ditch is drained to sandbeaches on the two sides through the drainage passageway; fine-particle mud in the drainage passageway is started under the action of water flow and moves, the mud is output along with offshore flow in a tide falling period, and sandbeach argillization is avoided. According to the artificial channel drainage sandbeach sedimentation reducing system, the ditch is artificially excavated, and the function of waves and tide is effectively adjusted toreduce natural hazards. Pollution can be effectively degraded through coast wetland restoration, and the primary ecological system and natural balancing mechanism are restored; and by means of ecological restoration, the diversity of the species is improved. A good basis is provided for further construction of leisure tourism inhabiting facilities, and a basis is provided for tourism development.

Description

technical field [0001] The invention belongs to the technical field of coastal wetland ecological restoration, and in particular relates to an artificial ditch drainage beach silt reduction system. Background technique [0002] Sandy coasts and silty coasts are an important part of my country's mainland coasts. In recent years, with the development of coastal tourism and the impact of human activities, natural beaches and artificial beaches have been hardened, muddy, and even degraded to varying degrees. Coastal tourism is a hot spot in world leisure experience tourism. [0003] "National Marine Economy Development Planning Outline" pointed out: "Coastal tourism is China's pillar marine industry and should be developed with priority." At present, my country has formed five major coastal tourism belts, including the Bohai Bay, the Yangtze River Delta, the west coast of the Strait, the Pearl River Delta, and the coast. [0004] But at present, many beaches in my country are g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/00E02B5/00
CPCE02B3/00E02B5/00Y02A10/00Y02A40/22
Inventor 姚昱婷孔俊季智灵周晨琦
Owner HOHAI UNIV
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