Landscape type multi-stage stepwise artificial wetland protection slope forming method

A technology of artificial wetland and forming method, which is applied in the direction of coastline protection, climate change adaptation, etc., can solve the problems of high cost, large amount of construction, restrictions on popularization and use, etc., achieve good water permeability, save land, and avoid adverse effects

CN1632231AInactive Publication Date: 2005-06-29HOHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2005-06-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a slope protection forming method of a landscape-type multi-level stepped constructed wetland, which has the effect of intercepting and purifying pollutants entering river channels in the form of surface sources. Sand-free concrete piles and slabs are inserted to form pile-slab components, and a slope protection system from high to low is formed on the river bank slope from the bank slope to the river bed. Planting areas are set on the side of the pile slabs, and there are fillers inside. Geotextiles are installed on the bankside side of the slab, so that when the non-point source pollutants flow from the river bank to the river, the plants planted in the planting area absorb the eutrophication in the polluted water, and the biofilm is formed on the surface of the filler to absorb and degrade the pollutants. After this The sewage treated at the first stage continues to infiltrate or overflow, enters the second row, and goes down step by step. Finally, the sewage is purified to a greater extent and flows into the river. It solves the defects of natural, hard and ecological slope protection. The structure is simple, easy for industrial production, the construction amount is small, the land is saved, and the landscape is beautified.
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Description

technical field

[0001] The invention relates to an environment-protecting river channel slope protection facility, in particular to a forming method of a landscape-type multi-level stepped artificial wetland slope protection system capable of intercepting and purifying pollutants entering the river channel in the form of surface sources. Background technique

[0002] Before the present invention, existing river course slope protection technology has natural type slope protection, hard slope protection and ecological type slope protection.

[0003] Natural slope protection is to use plants with well-developed root systems to plant them on the slope of the river to fix soil and sand, prevent soil erosion, meet the needs of the ecological environment, and maintain the natural landscape effect, so as to achieve the purpose of soil protection. However, this natural slope protection method has the disadvantage of poor stability. It is easy to be washed by rainwater to form deep di...

Examples

Embodiment Construction

[0016] Such as figure 1 , 2 , 3, on the bank slope 12 (side slope) of the river course, drive concrete piles 9 according to a certain arrangement, grooves are arranged on both sides of the concrete piles 9, one side of the concrete slab 10 is embedded, and the other side is embedded in the other side. Concrete sheet pile member 1 is formed in the groove of concrete pile 9, is connected all the time, forms the arrangement from the bottom of river bank slope 12 (higher than normal water level) gradually upwards to the top of the slope; On one side facing the bank, the concrete slab 10 adopts sandless concrete, which has good water permeability; a geotextile 11 is arranged on the backwater (river bed) side of the concrete slab 10 in the concrete sheet pile member 1 to prevent soil and sand from penetrating; The side unit of a row of concrete sheet pile members 1 facing the bank is the plant planting area, which has plants and fillers, and the filler includes pebbles 2, coarse sa...