An artificial ditch drainage beach silt reduction system

A water injection system and sand beach technology, which is applied in artificial waterways, water conservancy projects, sea area engineering, etc., can solve the problems of complicated beach dredging work, difficulty in keeping the beach clean for a long time, mudification, etc., and achieve rich biodiversity and increase diversity Sexuality, the effect of promoting vegetation growth

Active Publication Date: 2021-04-06
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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  • An artificial ditch drainage beach silt reduction system

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Effect test

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 ditch drainage beach silt reduction system, which belongs to the technical field of ecological restoration of coastal wetlands. The land behind the beach, the water injection system cooperates with the water injection ditch to always inject water into the water injection ditch, the outer wall is on both sides of the water injection ditch, the water in the water injection ditch drains to the beaches on both sides through the drainage channel, and the fine particles in the drainage channel The mud starts and moves under the action of the water flow, and is exported with the rip current during the low tide period to prevent the beach from becoming muddy. The invention effectively adjusts the effects of waves and tides through artificially excavated ditches to reduce natural disasters; coastal wetland restoration can effectively degrade pollution and restore the original ecological system and natural balance mechanism; and increase species diversity through ecological restoration. It provides a good foundation for the further construction of leisure and tourism habitat facilities, and provides a foundation for the development of tourism.

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 Patents(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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