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Cascading type ecological planting tank for road surface runoff collection, purification and utilization

An ecological planting and series connection technology is applied in the fields of ecological planting troughs and road runoff treatment devices to achieve the effects of increasing greening and beautifying functions, enhancing emergency functions and reducing risks.

Active Publication Date: 2013-10-30
CHINA ACAD OF TRANSPORTATION SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The purpose of the present invention is to provide a novel structure, a series of drains, to overcome the defects in the design of existing roadside drains, traditional ecological drains, artificial wetlands specially set up for the treatment of road surface runoff, and specially set irrigation pipes. The ecological p

Method used

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  • Cascading type ecological planting tank for road surface runoff collection, purification and utilization
  • Cascading type ecological planting tank for road surface runoff collection, purification and utilization
  • Cascading type ecological planting tank for road surface runoff collection, purification and utilization

Examples

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Effect test

Embodiment 1

[0087] Such as Figure 1-3 As shown, a riverside road in a certain province is taken as the best embodiment of an ecological planting trough for the collection and purification of road surface runoff in series. The area where the highway is located has a distinct monsoon climate and distinct dry and wet seasons. Rainy season (wet season) due to concentrated rainfall, winter dry summer rain, winter half year (November to next April) dry season rainfall only accounts for 5-15% of annual rainfall, summer half year (May-October) rainy season rainfall The amount accounts for 85-95% of the whole year.

[0088] The subgrade longitudinal slope of the K18+300-K18+700 section of the Binhe Highway is 4%. In order to effectively collect and purify the runoff on the road surface, a series-connected ecological planting trough design is adopted. The width of this road section is 12 meters, and it is a single-side catchment. The width of the road on one side is 12 meters. According to the l...

Embodiment 2

[0101] Such as Figure 4 , Figure 5 As shown, another ecological planting trough for collecting and purifying runoff in series is set at K4+540-K4+680 of the road. The side walls 31 and the tops of the side walls 32 of each ecological planting tank 1 descend obliquely along the longitudinal direction of the subgrade, and the angle of inclination is consistent with the longitudinal slope of the road, that is, the slope is 2.4%. Multiple ecological planting tanks 1 connected in series The formed upper plane is a downwardly concave arc surface, so that the surfaces of two adjacent ecological planting grooves are smoothly connected. The specific method is to locally thicken or thin the surface planting soil layer 7 of each ecological planting groove 1, make its surface vertically streamlined along the route and reduce, and make the planting groove surface trimmed into an arc-shaped groove 26, while the ecological planting groove The planting trough baffle 16 in the first room i...

Embodiment 3

[0104] Such as Figure 15 As shown, a series-connected ecological planting trough for collection and purification of road surface runoff is set at K3+240-K4+380 of the road. Because the terrain here is gentle, the slope ratio of the road longitudinal slope is less than 0.5%, and the plant growth is less restricted by water, we have adopted a plurality of series-connected ecological planting tanks to replace the impermeable layer 6 in the above embodiment with a filter permeable layer The method increases its downward drainage performance, that is, the vegetation layer 8 composed of turf or shrubs, the planting soil layer 7, the infiltration and purification layer 5, the filter permeable layer 6, the support layer 4, and the water storage layer 3 are used from top to bottom. , The anti-seepage layer 2 is sequentially stacked and formed. In this design mode, the runoff flows weakly along with the longitudinal slope of the road, mainly to collect water and increase soil water st...

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Abstract

The invention relates to a cascading type ecological planting tank for road surface runoff collection, purification and utilization. The cascading type ecological planting tank is formed by connecting a plurality of ecological planting tanks distributed along a highway route in series, wherein each ecological planting tank is formed by a vegetation layer, a planting soil layer, a permeating and purifying layer, an impervious layer, a supporting layer, a water storage layer and a permeating preventing layer from top to bottom, and the bottoms and the lateral surfaces of the vegetation layer, the planting soil layer, the permeating and purifying layer, the impervious layer, the supporting layer, the water storage layer and the permeating preventing layer are sealed. The plurality of ecological planting tanks are sequentially connected in series along a longitudinal slope of a highway from top to low, the water storage layer of the ecological planting tank at the higher position is connected with the permeating and purifying layer of the corresponding ecological planting tank at the lower position, and a reversed-U-shaped siphon is installed between the permeating and purifying layer and the water storage layer of each ecological planting tank. By means of the structure, comprehensive functions of road surface runoff collection, purification, storage, automatic guiding and discharging and comprehensive utilization can be achieved, and the cascading type ecological planting tank for road surface runoff collection, purification and utilization is suitable for road side afforest and central median afforest of places concentrated in rainstorm and uneven in rainfall distribution, road surface runoff collection, processing and utilization or emergency management of road surface dangerous goods transportation leakage.

Description

technical field [0001] The invention belongs to a road surface runoff treatment device in the technical field of road surface runoff treatment, in particular to an ecological planting tank for collecting, purifying and utilizing serially connected road surface runoff. Background technique [0002] Relevant studies at home and abroad have shown that pavement runoff contains a large number of complex pollution components. Generally speaking, road surface runoff pollution components include heavy metals, mineral oils, chlorides, chemical oxygen demand (COD), suspended solids (SS), BOD, polycyclic aromatic hydrocarbons (PAHs), etc., the content of SS is high, while the content of COD is relatively low, and the content of petroleum and heavy metals is high. [0003] In order to alleviate the impact of pavement runoff on surrounding water bodies, many runoff filtration and purification technologies have been proposed at home and abroad. For example, the United States is currently ...

Claims

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Application Information

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IPC IPC(8): A01G9/02A01G25/06C02F3/32
CPCY02W10/10
Inventor 陈学平刘学欣薛铸陈济丁
Owner CHINA ACAD OF TRANSPORTATION SCI
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