Green belt for roads

A technology for green belts and roads, which is applied to roads, roads, road safety devices, etc., can solve the problems of water accumulation on roads, lack of functions of collecting rainwater and quickly removing rainwater on roads, and does not consider filtering and drainage functions, etc., to achieve reduction pollution effect

Inactive Publication Date: 2012-06-13
WUXI MUNICIPAL DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The green belt in the middle and / or side of the existing road is generally designed higher than the road surface, and its single function is only for greening and beautifying decoration and absorbing part of the air dust. It does not have the function of collecting rainwater and quickly removing rain from the road area
The disadvantage of the design of the green belt higher than the road surface is that the rainfall runoff cannot directly enter the green belt, and it needs to occupy the road surface to collect the rainwater outlets arranged alternately. The rainwater grate on the roadside is affected by the falling leaves and garbage. Short-term water accumulation on large-scale roads affects traffic. In recent years, frequent rainstorms in cities have caused more water accumulation on roads.
This patent only focuses on the use of green belt plants to absorb road dust, and does not consider the filtering and drainage functions. The road surface drainage adopts open channels, and the structure and function of the green belt are not substantially different from the traditional green belt. Drainage, not to mention the use of rainwater resources, cannot solve the shortcomings that cannot be overcome by the existing green belts

Method used

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Embodiment

[0020]Embodiment: Referring to the accompanying drawings, the road 1 needs to be excavated in the green belt area, and then the bottom layer is constructed from the bottom to the upper layer to form a concave arc-shaped, fast permeable green belt 2 lower than the road surface 100mm. The green belt is vertically downward, followed by the laying of turf layer 2.1 surface layer, 350mm thick permeable soil layer 2.2, 300mm thick gravel layer 2.3 (thickness ≥ 100mm in the upper and lower sides of the internal drainage pipe), and permeable drainage pipe 2.4 in the gravel layer . Among them, the drainage pipes are connected with the road drainage main pipe by branch pipes at intervals, and the connecting branch pipes can be made of permeable materials or impervious pipes. According to the needs of rainwater drainage, rainwater outlets that communicate with the bottom drain pipes can also be arranged on the surface in sections. The water permeability of the soil layer should be consi...

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Abstract

The invention relates to improvement of a green belt for roads and is characterized in that the surface of the green belt is lower than a road surface. The quickly seeping green belt is composed of a greening vegetation layer, a permeable soil layer and a grit layer which are sequentially arranged from top to bottom, and a permeable drain pipe is arranged in the grit layer. Accordingly, the green belt has the greening function and filtering and quick draining functions simultaneously and solves the problem of water gathering on the road surface when it rains. Besides, rain water which is drained and seeps to the underground is purified water filtered by vegetation, soil and grit. In addition, the green belt further expands rain water absorbing area and can collect more rain water to supplement underground water. Therefore, the green belt for roads effectively overcomes the insurmountable shortcomings of a design method of an existing green belt higher than the ground, and has a novel function which a green belt in the prior art cannot have.

Description

technical field [0001] The invention is an improvement to the existing road green belt, and in particular relates to a road green belt which can quickly drain rainwater, filter and purify road surface runoff rainwater, and supplement groundwater with filtered and purified rainwater. Background technique [0002] The green belts in the middle and / or side of the existing road are generally designed to be higher than the road surface, and the single function is only for greening and beautifying decoration and absorbing part of the air dust, and does not have the function of collecting rainwater and quickly removing rain on the road. The disadvantage of the design of the green belt higher than the road surface is that the rainfall runoff cannot directly enter the green belt, and it needs to occupy the road surface to collect the rainwater outlets arranged alternately. The rainwater grate on the roadside is affected by the falling leaves and garbage. Short-term water accumulation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G25/06E01F15/02
Inventor 许怀明
Owner WUXI MUNICIPAL DESIGN INST
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