Annular sponge wetland garden and construction method thereof

Abstract

The invention belongs to the field of sponge city construction, and relates to an annular sponge wetland garden and a construction method thereof. The annular sponge wetland garden comprises a water collecting channel, a high-load area, a low-load area and a central well, wherein the water collecting channel comprises an inner barrel and an outer barrel; the inner barrel is formed by splicing a plurality of sub-barrels; upper water inlet holes are formed in the upper areas of part of the sub-barrels, and lower water inlet holes are formed in the lower areas of the other part of the sub-barrels; the lower water inlet holes communicate with the lower part of a filter layer of the high-load area; the upper water inlet holes communicate with a filter layer of the low-load area; and the lowest layer of a buffer area communicates with the upper area of an adsorption layer of the high-load area and the upper area of the filter layer of the low-load area. According to the annular sponge wetland garden, rainwater in different periods can be treated in different areas, rainwater collection, a rainwater garden, a rainwater wetland and a water storage module are integrated, and the occupied area of the wetland garden is effectively reduced.

Description

technical field [0001] The invention belongs to the field of sponge city construction and relates to an annular sponge wetland garden and a construction method thereof. Background technique [0002] With the rapid development of sponge city construction, the requirements for sponge facilities in newly built communities are increasing. Technologies such as rainwater infiltration, storage, storage, transmission, and purification are gradually being applied in the construction of communities, parks, squares, etc. [0003] The rainwater process in sponge construction includes rainwater collection, treatment, regulation and storage, reuse or discharge. Related facilities include permeable pavement, rain gardens, rainwater wetlands, bioretention ponds, etc. The division of labor and cooperation between various facilities to achieve related functions. However, the applicant found in practical application that there is a big difference between the water quality of initial rainwater ...

AI Technical Summary

Problems solved by technology

However, the applicant found in practical application that there is a big difference between the water quality of initial rainwater and normal rainwater. For example, in the river channel management, the initial rainwater has been specially treated instead of one size fits all. It can be seen that the impact of early rainwater cannot be ignored. At the same time, the impact of various facilities There are problems such as large occupied area and difficult construction in the independent operation of the room, which greatly increases the construction cost of the sponge facility.

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