CN206385425U - A kind of ecological permeable road surface - Google Patents

Abstract

The utility model discloses a kind of ecological permeable road surface, pavement structure has been sequentially distributed permeable surface layer, screed-coat, permeable adhesive-bonded fabric, broken stone road disk, filter layer, roadbed from top to bottom；The broken stone road tray bottom is embedded with drainpipe with holes, and drainpipe with holes connects sewerage system；The permeable surface layer is the thick pervious concretes of 30~50mm or concrete permeable brick；The permeable adhesive-bonded fabric is permeable geotextiles.The utility model aims to solve the problem that existing pavement structure is waterproof or coefficient of permeability is low, and the problem of intensity and poor performance of keeping humidity.The road surface has excellent infiltration, drainage performance, and with good performance of keeping humidity, by laying permeable adhesive-bonded fabric, the rupture strength of pavement structure can be strengthened, solve porous pavement water penetration and the problem of resistance to compression, rupture strength can not be taken into account, not only alleviate the pressure of drainage system, and for alleviate city " tropical island effect " serve it is vital.

Description

An ecological permeable pavement

technical field

The utility model relates to the field of pavement structures, in particular to an ecological permeable pavement.

Background technique

With the development of the economy and the acceleration of urban modernization, most cities have encountered problems such as lack of groundwater resources, heat island effect, and rain island effect. Studies have found that these problems are all related to the continuous coverage of natural soil vegetation by various impermeable materials such as concrete, asphalt, and stone during urban construction. The proportion of impermeable ground in many cities in China has exceeded 70%, which has changed the permeability of the original natural ground, which not only puts great pressure on the drainage system of the road surface, but also greatly damages the ecological environment.

At present, concrete is used in the paving of roads for direct pouring. The road surface has no drainage function. When it rains, the road surface will accumulate water. When the accumulated water reaches a certain depth, it will not only cause the road surface to crack easily, but also reduce the use of the road surface. Life expectancy will increase the cost of future enclosures, and it will also reserve hidden dangers for vehicles and personal safety.

The existing permeable pavement structure, due to problems such as technology or aggregate selection, makes it difficult to balance the water seepage, moisture retention performance and compressive and flexural strength. For example: the water seepage effect is good but not pressure-resistant, and the groundwater cannot be replenished into the air through the permeable bricks through evaporation in the dry season, and the "heat island effect" and "rain island effect" cannot be alleviated, and its moisturizing performance is poor.

Therefore, there is an urgent need for a construction method of an ecological permeable concrete structure pavement with better water permeability, moisture retention and better compressive and flexural strength, which can be used to build a sponge city.

Utility model content

The purpose of the utility model is to provide an ecological permeable pavement, aiming at solving the problems of the existing pavement structure being impermeable or low in water permeability coefficient, as well as poor in strength and moisturizing performance.

In order to achieve the above purpose, the technical solution of the present utility model is: an ecological permeable pavement, the pavement structure is distributed with a permeable surface layer 1, a leveling layer 2, a permeable non-woven fabric 3, a gravel pavement 4, and a filter layer from top to bottom. Layer 5, subgrade 6;

The permeable surface layer 1 is permeable concrete or concrete permeable brick, with a thickness of 30-50 mm;

The permeable non-woven fabric 3 is a permeable geotextile.

A perforated drainpipe 7 is buried at the bottom of the gravel pavement 4, and the perforated drainpipe 7 is connected to the urban drainage system;

The filter layer 5 includes steel slag and activated carbon.

As a preference of this solution, the thickness of the crushed stone pavement 4 is 100-150 mm thick recycled aggregate.

As a preference of this solution, filter material is provided outside the perforated drain pipe 7 .

The beneficial effects of the utility model are:

1. The road surface provided by the utility model has excellent water seepage and drainage performance, and has good moisturizing performance, which not only reduces the pressure of the drainage system, but also plays an important role in alleviating the urban "heat island effect".

2. The pavement provided by the utility model has good water permeability, compression resistance and flexural resistance. By laying a permeable non-woven fabric under the leveling layer, the flexural strength of the pavement structure can be enhanced, and the water permeability and compression resistance of the permeable pavement can be solved. , The problem that the flexural strength cannot be taken into account.

3. The filter layer contains activated carbon and mining waste steel slag. The fine battery formed can not only effectively purify the water body, but also solve the problem of resource waste and environmental pollution caused by steel slag, which provides a good reference for future road and other engineering construction effect.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

As shown in Figure 1, an ecological permeable pavement includes a subgrade 6 at the bottom, a filter layer 5 is distributed on the top surface of the subgrade 6, a gravel road disc 4 is distributed on the top surface and both ends of the filter layer 5, and the gravel road disc 4 is topped. A permeable geotextile is distributed on the surface, a leveling layer 2 is distributed on the top surface of the permeable geotextile, and a permeable surface layer 1 is distributed on the top surface of the leveling layer 2;

The filter layer 5 is mixed with steel slag and activated carbon, and the fine battery formed can not only effectively purify the water body, but also solve the problems of resource waste and environmental pollution caused by steel slag;

The gravel pavement 4 has a thickness of 150mm and is well-graded recycled coarse aggregate, and a perforated drainage pipe 7 arranged along the road is buried at the bottom. drainage system connection;

The permeable surface layer 1 is permeable concrete with a thickness of 50 mm, and high-strength concrete permeable bricks can also be used.

The pavement provided by the embodiment of the utility model has excellent water seepage and drainage performance, and has good moisturizing performance. By laying a permeable geotextile under the leveling layer, the flexural strength of the pavement structure can be enhanced, and the water permeability of the permeable pavement is solved. The problem that compressive strength and flexural strength cannot be taken into account. It not only reduces the pressure on the drainage system, but also plays a vital role in alleviating the urban "heat island effect".

The described embodiments are only some of the embodiments of the present utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of the present utility model.

Claims (3)

1. a kind of ecological permeable road surface, it is characterised in that pavement structure has been sequentially distributed permeable surface layer (1) from top to bottom, levelling Layer (2), permeable adhesive-bonded fabric (3), broken stone road disk (4), filter layer (5), roadbed (6)；

The permeable surface layer (1) is pervious concrete or concrete permeable brick, and thickness is 30~50mm thick；

The permeable adhesive-bonded fabric (3) is permeable geotextiles；

Broken stone road disk (4) bottom is embedded with drainpipe with holes (7), and drainpipe (7) with holes connects sewerage system.

2. a kind of ecological permeable road surface according to claim 1, it is characterised in that the broken stone road disk (4) is 100~ 150mm thickness regeneration aggregates.

3. a kind of ecological permeable road surface according to claim 1, it is characterised in that the drainpipe (7) with holes is externally provided with Filtering material.