阅读说明：本技术 一种基于海绵城市的透水路面铺装系统 (Permeable pavement paving system based on sponge city ) 是由 舒兴旺 申力涛 柳锐锋 蔡丽娜 张影 林浩 崔东霞 李登华 刘哲 于 2020-04-04 设计创作，主要内容包括：本发明公开了一种基于海绵城市的透水路面铺装系统。所述的铺装系统是由设置在路基之上的路面铺装单元﹑蓄水单元﹑排水单元构成；其中蓄水单元和路面铺装单元依次设置在路基上,蓄水单元和路面铺装单元之间设置土工格栅；排水单元位于蓄水单元和路面铺装单元一侧；蓄水单元和排水单元,与路基之间设置防水层；所述蓄水单元为上开口的蓄水池,蓄水池内竖直放置蜂窝状排水柱层；所述路面铺装单元为多孔隙环氧树脂混凝土层；所述排水单元由储水池﹑抽水系统和浇淋系统构成。与现有技术相比,本发明具有路面承载力强,透水效率高；易养护,耐久性好；透水-蓄水-排水等多功能高效集成,实现水资源绿色利用等优点,可有效解决城市“热岛效应”。(The invention discloses a permeable pavement paving system based on a sponge city. 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, and the 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; a waterproof layer is arranged between the water storage unit and 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 epoxy resin concrete layer; the drainage unit consists of a water storage tank, a water pumping system and a pouring system. Compared with the prior art, the invention has the advantages of strong road surface bearing capacity and high water permeation efficiency; the maintenance is easy, and the durability is good; the multifunctional high-efficiency integration of water permeation, water storage, water drainage and the like realizes the advantages of green utilization of water resources and the like, and can effectively solve the urban 'heat island effect'.)

1. A permeable pavement paving system based on a sponge city is characterized by comprising a pavement paving unit, a water storage unit and a drainage unit, wherein the pavement paving unit, the water storage unit and the drainage unit 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 between the water storage unit and 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 epoxy resin 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.

2. The sponge city-based water-permeable pavement paving system according to claim 1, characterized in that the porous epoxy resin concrete layer is integrally formed or is prefabricated and spliced by porous epoxy resin concrete bricks, and splicing seams are bonded by an epoxy structural adhesive; the thickness of the porous epoxy resin concrete layer is 6-15cm, and the porosity is 15-20%.

3. The sponge city-based water-permeable pavement paving system according to claim 2, characterized in that the porous epoxy resin concrete layer is made of porous epoxy resin concrete, which is prepared from the following materials in a mass ratio of 2: 1: 12-18, A, B, C; the preparation method of the porous epoxy resin concrete layer comprises the following steps: firstly, mixing and stirring the component A and the component B uniformly, then adding the component C into the mixture of the component A and the component B, and uniformly stirring and integrally forming or preparing a prefabricated brick;

the component A comprises the following components in parts by mass: 100 parts of nano rubber modified epoxy resin HH-080N, 0-5 parts of ethylene glycol diglycidyl ether and 0.5-1 part of hydrophobic fumed silicaR812S, 0.1 part of dispersant BYK-163, 0.1 part of defoamer BYK-066N, 0.1 part of carbon black, 0.1 part of antioxidant 1076 and 0.1 part of antioxidant additive 1075;

the component B comprises the following components in parts by mass: 100 parts of polyamide curing agent 651, 40-80 parts of polyether amine curing agent D230 and 1-2 parts of curing accelerator DMP-30;

the component C comprises the following components in parts by mass: 100 parts of basalt stone with the grain diameter of 9.5-13.2mm, the content of needle-shaped particles is less than 10 percent, and the content of mud is less than 0.8 percent; 10-25 parts of basalt stone with the grain diameter of 2.36-4.75mm, wherein the content of needle-shaped and sheet-shaped grains is less than 8 percent, and the content of mud is less than 0.8 percent; 2-4 parts of chopped basalt fibers with the length of 6-9mm and the diameter of 20-40 mu m.

4. The sponge city-based water-permeable pavement paving system according to claim 1, characterized in that the cellular 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.

5. The sponge city-based water permeable pavement paving system according to claim 1, wherein the geogrid is a glass fiber geogrid or a carbon fiber geogrid, the size of the grid is 12.7mm × 12.7.7 mm or 25.4mm × 25.4.4 mm, and the geogrid is fixedly bonded below the porous epoxy resin concrete layer through an epoxy adhesive.

6. The sponge city-based water-permeable pavement paving system according to claim 1, wherein the material of the waterproof layer is one of asphalt waterproof coiled material, high polymer modified waterproof coiled material or synthetic high polymer waterproof coiled material.

Technical Field

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

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.

At present, water permeable materials are used to cover urban road surfaces internationally, or some hardened road surfaces laid before are changed into water permeable road surfaces to enhance the ecological effect of cities. The urban carriageway generally adopts porous asphalt concrete or porous cement concrete as a paving material, and because the porosity of the concrete is high, the bearing capacity, the wear resistance and the freeze-thaw resistance of the concrete are generally low, and simultaneously under the comprehensive actions of weather aging, water action, temperature action, load action and the like, the concrete has serious diseases, poor durability and short service life. In addition, the permeable pores on the road surface are easily blocked by soil or other impurities, the permeable efficiency is obviously reduced, the blocked pores are difficult to dredge, and the road surface maintenance difficulty is high.

Disclosure of Invention

Aiming at the defects of the water-permeable pavement, the invention provides a water-permeable pavement paving system based on a sponge city, which has the advantages of strong pavement bearing capacity and high water-permeable efficiency; easy maintenance and good durability; the multifunctional high-efficiency integration of water permeation, water storage, drainage and the like realizes the advantages of green utilization of water resources and the like, and can effectively solve or relieve the urban 'heat island effect'.

The permeable pavement paving system based on the sponge city is composed of a pavement paving unit, a water storage unit and a drainage unit, wherein the pavement paving unit, the water storage unit and the drainage unit 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 between the water storage unit and 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 epoxy resin 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.

The porous epoxy resin concrete layer is integrally formed or is formed by prefabricating and splicing porous epoxy resin concrete bricks, and splicing seams are bonded by an epoxy structural adhesive; the thickness of the porous epoxy resin concrete layer is 6-15cm, and the porosity is 15-20%.

The porous epoxy resin concrete layer is made of porous epoxy resin concrete, and the porous epoxy resin concrete layer is prepared from the following components in percentage by mass: 1: 12-18, A, B, C; the preparation method of the porous epoxy resin concrete layer comprises the following steps: firstly, mixing and stirring the component A and the component B uniformly, then adding the component C into the mixture of the component A and the component B, and uniformly stirring and integrally forming or preparing a prefabricated brick;

the component A comprises the following components in parts by mass: 100 parts of nano rubber modified epoxy resin HH-080N, 0-5 parts of ethylene glycol diglycidyl ether and 0.5-1 part of hydrophobic fumed silicaR812S, 0.1 part of dispersant BYK-163, 0.1 part of defoamer BYK-066N, 0.1 part of carbon black, 0.1 part of antioxidant 1076 and 0.1 part of antioxidant additive 1075;

the component B comprises the following components in parts by mass: 100 parts of polyamide curing agent 651, 40-80 parts of polyether amine curing agent D230 and 1-2 parts of curing accelerator DMP-30;

the component C comprises the following components in parts by mass: 100 parts of basalt stone with the grain diameter of 9.5-13.2mm, the content of needle-shaped particles is less than 10 percent, and the content of mud is less than 0.8 percent; 10-25 parts of basalt stone with the grain diameter of 2.36-4.75mm, wherein the content of needle-shaped and sheet-shaped grains is less than 8 percent, and the content of mud is less than 0.8 percent; 2-4 parts of chopped basalt fibers with the length of 6-9mm and the diameter of 20-40 mu m.

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, the size of the grid is 12.7mm × 12.7.7 mm or 25.4mm × 25.4.4 mm, and the geogrid is fixedly bonded below the porous epoxy resin 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 invention has the following advantages:

1) the road surface bearing capacity is strong, and it is efficient to permeate water. The invention takes the porous epoxy resin concrete layer as the pavement layer and takes the honeycomb drainage column layer as the supporting structure and the drainage structure of the pavement layer, thereby obviously improving the bearing capacity and the water permeability efficiency of the pavement layer.

2) Easy maintenance and good durability. In the invention, the honeycomb drainage column layer is arranged below the porous epoxy resin concrete layer, so that the drainage and drainage effects can be realized. When the drainage channel in the porous epoxy resin concrete 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 road surface is led into the reservoir through the porous epoxy resin concrete layer, so that the water permeable function of the road surface 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 epoxy resin 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 diagram of a sponge city-based permeable pavement paving system;

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

1-roadbed, 2-reservoir, 3-honeycomb drainage column layer, 4-porous epoxy resin 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

In order to better understand the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.