Multi-stage purification landscape structure for sloping fields along river and construction method thereof

Abstract

The invention discloses a multi-stage purification landscape structure for sloping fields along a river and a construction method thereof. The multi-stage purification landscape structure comprises afirst-stage planting retaining wall structure, a second-stage permeable road structure, a third-stage sloping field structure and a fourth-stage revetment retaining wall structure. The first-stage planting retaining wall structure consists of a plurality of planting grooves; the second-stage permeable road structure includes a water collection trough arranged at the leftmost side of a permeable road, permeable road edges at two sides of the permeable road, and a first permeable partition at the bottom of the permeable road and a second permeable partition at the bottom of the permeable road; the third-stage sloping field structure consists of a plurality of concrete grooves arranged in sequence; and the lower part of the fourth-stage revetment retaining wall structure is made of imperviousconcrete, and the upper part is made of pervious concrete. The multi-stage purification landscape structure adopts a multi-stage purification design, which can not only green and beautify the urban environment, but also purify the pollution sources on the slope surface.

Description

technical field [0001] The invention belongs to the technical field of slope surface pollution source purification, and in particular relates to a multi-stage purification landscape structure along a river slope, and also relates to a construction method thereof. Background technique [0002] With the discharge of industrial waste gas and the intensive use of pesticides and fertilizers in the agricultural production process and the application period is relatively concentrated, more and more pollutants in the precipitation, as the rainwater enters the river water body, causing eutrophication of the water body and affecting the ecological environment of the river channel . According to the survey of relevant departments, nearly 75% of the lakes in the country have different degrees of eutrophication, and 90% of urban waters are seriously polluted. In addition, urban non-point source pollutants are also carried by rainwater into river water bodies in large quantities, causing...

AI Technical Summary

Problems solved by technology

[0003] However, for the purification of sewage, most technologies mainly start from the perspective of river water, and do not consider purification from the flow path of rainwater

It is worth pointing out that in order to purify the river, local governments spend hundreds of millions or even billions of funds every year, but the effect is not significant

[0004] Traditional retaining structures generally only consider the functions of soil and water conservation and landscape greening, but do not fully consider the connection of water permeability, water purification and landscape functions, and cannot purify pollutants in rainwater

However, natural rainwater often carries a large amount of domestic garbage and other pollutants on the ground. After unpurified rainwater is discharged into natural rivers, it will aggravate the pollution of natural water bodies.

In addition, most of the traditional retaining structures are gray-white concrete, which does not consider the landscape effect. The gray-white concrete surface affects the surrounding urban landscape and cannot play a role in beautifying the environment, let alone ecological protection. It will only destroy the ecological environment

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