CN212025818U

CN212025818U - Permeable pavement paving system

Info

Publication number: CN212025818U
Application number: CN202020480320.2U
Authority: CN
Inventors: 舒兴旺; 申力涛; 柳锐锋; 蔡丽娜; 张影; 林浩; 崔东霞; 李登华; 刘哲
Original assignee: Shanxi Transportation Technology Research and Development Co Ltd
Current assignee: Shanxi Transportation Technology Research and Development Co Ltd
Priority date: 2020-04-04
Filing date: 2020-04-04
Publication date: 2020-11-27
Anticipated expiration: 2030-04-04

Abstract

The utility model discloses a permeable pavement paving system. The pavement system is composed of a pavement unit, a water storage unit and a drainage unit which are arranged on the roadbed; the water storage unit and the pavement unit are sequentially arranged on the roadbed from bottom to top, and a geogrid is arranged between the water storage unit and the pavement unit; the drainage unit is positioned at one side of the water storage unit and the pavement unit; arranging a waterproof layer on the roadbed; the water storage unit is a reservoir with an upper opening, and a honeycomb drainage column layer is vertically arranged in the reservoir; the pavement paving unit is a porous asphalt concrete layer; the drainage unit consists of a water storage tank, a water pumping system and a pouring system; and a water pumping pipe of the water pumping system extends into the lower part of the reservoir to pump water in the reservoir into the water storage tank. Compared with the prior art, the utility model discloses high-efficient integrated multiple functions such as permeate water-retaining-drainage realize water resource green and utilize, can effectively solve or alleviate city "heat island effect".

Description

Permeable pavement paving system

Technical Field

The invention belongs to the technical field of traffic engineering, and particularly relates to a permeable pavement paving system.

Background

The urban area is increasingly huge, so that population is dense, waterproof building area is increased, and heat removal machines are increased, so that the probability of natural rainfall penetrating into ground soil is relatively reduced, and the heat balance of the city is damaged, so that pavement heat cannot be released. In order to improve the heat island effect of the city and reduce the influence on the ecology, the construction of the sponge city is the future development direction of the city.

The sponge city is a new generation of urban rainfall flood management concept, and means that the city has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and can be called as a hydro-elastic city. When raining, the utility model absorbs water, stores water, seeps water and purifies water, and when needed, the stored water is released and utilized. Rainwater is a valuable and economical water resource in cities. The rainwater is guided to the non-closed road surface from the closed road surface or the roof and is subjected to infiltration filtration of soil, so that the strength of surface runoff of the rainwater can be reduced, the groundwater is supplemented, partial pollutants in the rainwater can be removed, and the rainwater is removed on site to reduce accidents caused by water accumulation. The filtered rainwater can be used as city non-drinking water, so that the demand of drinking water is reduced, water resources are saved, and the pressure of city water supply is relieved. In addition, rainwater collection can save the construction cost of a drinking water distribution pipe network, and considerable economic benefits are obtained. Therefore, rainwater is collected on the water permeable pavement, which is a feasible rainwater utilization technology, and the water permeable pavement and the water permeable design are widely applied to the construction of various pavements and are important components in the construction of sponge cities.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a road surface system of mating formation permeates water, and multiple functions such as this system high-efficient integrated permeating water-retaining-drainage realize the green utilization of water resource, can effectively solve or alleviate city "heat island effect".

The permeable pavement paving system of the utility model is composed of a pavement paving unit, a water storage unit and a drainage unit which are arranged on the roadbed; the water storage unit and the pavement unit are sequentially arranged on the roadbed from bottom to top, and a geogrid is arranged between the water storage unit and the pavement unit; the drainage unit is positioned at one side of the water storage unit and the pavement unit and is close to roadside vegetation; a waterproof layer is arranged on the roadbed and separates the water storage unit from the drainage unit; the water storage unit is a reservoir with an upper opening, and a honeycomb drainage column layer is vertically arranged in the reservoir; the pavement paving unit is a porous asphalt concrete layer; the drainage unit consists of a water storage tank, a water pumping system and a pouring system; a water pumping pipe of the water pumping system extends into the lower part of the reservoir to pump water in the reservoir into the water storage tank; and the watering system sprays water in the water storage tank to the roadside vegetation.

The thickness of the porous asphalt concrete layer is 6-15cm, and the porosity is 15-20%.

The honeycomb drainage column layer is formed by transversely binding a plurality of engineering plastic pipes with the same length together or bonding the engineering plastic pipes together through an adhesive; each engineering plastic pipe is provided with a communicating hole in the transverse direction; the length of the engineering plastic pipe is 20-100cm, the inner diameter is 5-15cm, and the engineering plastic pipe is made of one material selected from polypropylene, polyvinyl chloride, polybutylene and polyethylene.

The geogrid is a glass fiber geogrid or a carbon fiber geogrid, and the size of the grid is 12.7mm multiplied by 12.7mm or 25.4mm multiplied by 25.4 mm; the geogrid is fixedly bonded below the porous asphalt concrete layer through an epoxy adhesive.

The waterproof layer is made of one of asphalt waterproof coiled materials, high polymer modified waterproof coiled materials or synthetic high polymer waterproof coiled materials.

Compared with the prior art, the utility model have following advantage:

1) the road surface bearing capacity is strong, and it is efficient to permeate water. The utility model discloses regard as the road surface layer of mating formation with porous pitch concrete layer to cellular drainage column layer is as the bearing structure and the drainage structure on road surface layer of mating formation, can show the bearing capacity and the efficiency of permeating water that improve the road surface layer of mating formation.

2) Easy maintenance and good durability. The utility model discloses set up cellular drainage column layer below well porous asphalt concrete layer, can play drainage effect. When the drainage channel in the porous asphalt concrete layer is blocked by sundries, the sundries can be easily flushed into the honeycomb drainage column layer through the high-pressure water gun, so that the water permeability of the pavement is recovered.

3) And the functions of water permeation, water storage, drainage and the like are integrated efficiently, so that the green utilization of water resources is realized. According to the invention, the accumulated water on the pavement is led into the reservoir through the porous asphalt concrete layer, so that the water permeable function of the pavement is realized; the reservoir stores the accumulated water on the road surface to realize the water storage function, and meanwhile, the reservoir is communicated with the atmosphere of the road surface through a porous asphalt concrete layer to realize the temperature and humidity control function of the road surface through the evaporation of the stored water; the invention comprises the drainage unit, when the water stored in the reservoir is too large and has overflow risk or roadside vegetation needs irrigation, the water pumping system in the drainage unit can be started, water in the reservoir is pumped into the reservoir, and the watering system is started to irrigate the roadside vegetation, so that green utilization of water resources is realized.

Drawings

FIG. 1 is a schematic structural view of a permeable pavement paving system designed by the present invention;

FIG. 2 is a schematic top view of a honeycomb drainage column;

1-roadbed, 2-reservoir, 3-honeycomb drainage column layer, 4-porous asphalt concrete layer, 5-reservoir, 6-pumping system, 7-pouring system, 8-waterproof layer, 9-geogrid, 10-intercommunicating pore and 11-engineering plastic pipe.

Detailed Description

Example 1:

the permeable pavement paving system is composed of a pavement paving unit, a water storage unit and a drainage unit which are arranged on the roadbed; the water storage unit and the pavement unit are sequentially arranged on the roadbed from bottom to top, and a geogrid is arranged between the water storage unit and the pavement unit; the drainage unit is positioned at one side of the water storage unit and the pavement unit and is close to roadside vegetation; a waterproof layer is arranged on the roadbed and separates the water storage unit from the drainage unit; the water storage unit is a reservoir with an upper opening, and a honeycomb drainage column layer is vertically arranged in the reservoir; the pavement paving unit is a porous asphalt concrete layer; the drainage unit consists of a water storage tank, a water pumping system and a pouring system; a water pumping pipe of the water pumping system extends into the lower part of the reservoir to pump water in the reservoir into the water storage tank; and the watering system sprays water in the water storage tank to the roadside vegetation. The thickness of the porous asphalt concrete layer is 6cm, and the porosity is 15%. The cross section of the reservoir is of a U-shaped structure and is made of reinforced concrete. The honeycomb drainage column layer is formed by transversely binding a plurality of engineering plastic pipes with the same length together; each engineering plastic pipe is provided with a communicating hole in the transverse direction; the length of the engineering plastic pipe is 20cm, the inner diameter of the engineering plastic pipe is 5cm, and the engineering plastic pipe is made of polypropylene. The geogrid is a glass fiber geogrid, and the size of the grid is 12.7mm multiplied by 12.7 mm; the geogrid is fixedly bonded below the porous asphalt concrete layer through an epoxy adhesive. The waterproof layer is made of asphalt waterproof coiled materials.

Example 2:

the permeable pavement paving system is composed of a pavement paving unit, a water storage unit and a drainage unit which are arranged on the roadbed; the water storage unit and the pavement unit are sequentially arranged on the roadbed from bottom to top, and a geogrid is arranged between the water storage unit and the pavement unit; the drainage unit is positioned at one side of the water storage unit and the pavement unit and is close to roadside vegetation; a waterproof layer is arranged on the roadbed and separates the water storage unit from the drainage unit; the water storage unit is a reservoir with an upper opening, and a honeycomb drainage column layer is vertically arranged in the reservoir; the pavement paving unit is a porous asphalt concrete layer; the drainage unit consists of a water storage tank, a water pumping system and a pouring system; a water pumping pipe of the water pumping system extends into the lower part of the reservoir to pump water in the reservoir into the water storage tank; and the watering system sprays water in the water storage tank to the roadside vegetation. The thickness of the porous asphalt concrete layer is 15cm, and the porosity is 20%. The cross section of the reservoir is of a U-shaped structure and is made of reinforced concrete. The honeycomb drainage column layer is formed by transversely binding a plurality of engineering plastic pipes with the same length together; each engineering plastic pipe is provided with a communicating hole in the transverse direction; the length of the engineering plastic pipe is 100cm, the inner diameter of the engineering plastic pipe is 15cm, and the engineering plastic pipe is made of polypropylene. The geogrid is a carbon fiber geogrid, and the size of the grid is 25.4mm multiplied by 25.4 mm; the geogrid is fixedly bonded below the porous asphalt concrete layer through an epoxy adhesive. The waterproof layer is made of high polymer modified waterproof coiled materials.

Claims

1. A permeable pavement paving system is characterized in that the paving system is composed of a pavement paving unit, a water storage unit and a drainage unit which are arranged on a roadbed; the water storage unit and the pavement unit are sequentially arranged on the roadbed from bottom to top, and a geogrid is arranged between the water storage unit and the pavement unit; the drainage unit is positioned at one side of the water storage unit and the pavement unit and is close to roadside vegetation; a waterproof layer is arranged on the roadbed and separates the water storage unit from the drainage unit; the water storage unit is a reservoir with an upper opening, and a honeycomb drainage column layer is vertically arranged in the reservoir; the pavement paving unit is a porous asphalt concrete layer; the drainage unit consists of a water storage tank, a water pumping system and a pouring system; a water pumping pipe of the water pumping system extends into the lower part of the reservoir to pump water in the reservoir into the water storage tank; and the watering system sprays water in the water storage tank to the roadside vegetation.

2. The permeable pavement paving system of claim 1, wherein the porous asphalt concrete layer has a thickness of 6-15cm and a porosity of 15-20%.

3. The permeable pavement paving system according to claim 1, wherein the cellular drainage column layer is formed by transversely binding a plurality of engineering plastic pipes with the same length or bonding the engineering plastic pipes together by an adhesive; each engineering plastic pipe is provided with a communicating hole in the transverse direction; the length of the engineering plastic pipe is 20-100cm, the inner diameter is 5-15cm, and the engineering plastic pipe is made of one material selected from polypropylene, polyvinyl chloride, polybutylene and polyethylene.

4. The permeable pavement paving system of claim 1, wherein the geogrid is a glass fiber geogrid or a carbon fiber geogrid, and the mesh size is 12.7mm x 12.7mm or 25.4mm x 25.4 mm; the geogrid is fixedly bonded below the porous asphalt concrete layer through an epoxy adhesive.

5. The permeable pavement paving system of claim 1, wherein the waterproof layer is made of one of asphalt waterproof coiled material, polymer modified waterproof coiled material or synthetic polymer waterproof coiled material.