CN202500072U

CN202500072U - Permeable pavement structure

Info

Publication number: CN202500072U
Application number: CN2012200699262U
Authority: CN
Inventors: 黄伟娟; 姜龙; 鲍仁富; 张政; 王少东; 马昌军
Original assignee: NANJING BIAOMEI COLOR STONE BUILDING MATERIAL CO Ltd
Current assignee: NANJING BIAOMEI COLOR STONE BUILDING MATERIAL CO Ltd
Priority date: 2012-02-28
Filing date: 2012-02-28
Publication date: 2012-10-24
Anticipated expiration: 2022-02-28

Abstract

The utility model relates to a permeable pavement structure which comprises an undisturbed soil layer. A graded crushed rock layer is laid on the undisturbed soil layer, a cement concrete layer is laid on the graded crushed rock layer, a drainage ditch leading to the edge of a footpath is reserved on at least one side of the cement concrete layer, a permeable concrete layer is laid on the drainage ditch, permeable concrete surface layers are laid on the cement concrete layer and the permeable concrete layer, road-edge flat stones are laid on two sides of the permeable pavement structure, a cement mortar layer is smeared on the road-edge flat stones, and the road-edge flat stones are adhered on the permeable concrete layer. By the aid of the permeable pavement structure, rainwater can flow into the ditch through permeable concrete in the ditch and accordingly flow into a roadside green belt, and environments are beautified.

Description

Permeable pavement structure

Technical field:

The utility model relates to the road structure field, especially a kind of permeable pavement structure.

Background technology:

In the road design of in the past afforesting scenic belt, exist the situation that narrow path does not have drainage system.Little supercrust is a pervious concrete; The path bottom is fluid-tight cement concrete constructions; The both sides is designed to the closed construction that brick is laid; Thereby make permeable surface layer become a wetland, water just accumulates in the pervious concrete surface layer when rainy, makes damage phenomenons such as fading appears in pervious concrete very soon, threshing, cracking.This is that the impermeable reason of rainwater causes, and this is a project organization of being inconvenient to use pervious concrete.

The utility model content:

The technical problem that the utility model will solve provides a kind of permeable pavement structure that can the water on the road surface be passed through the discharge of path both sides.

For solving the problems of the technologies described above; The technical scheme of the utility model is following: permeable pavement structure, comprise the original state soil layer, and said original state soil layer upper berth is provided with the graded broken stone layer; Be equipped with cement concrete layer on the wherein said graded broken stone layer; At least one side of cement concrete layer leaves the gutter of leading to the path edge, is covered with the pervious concrete layer on the gutter, is equipped with the pervious concrete surface layer on said cement concrete layer and the pervious concrete layer; The both sides of this permeable pavement structure are covered with the flat stone of curb, are wiped with cement sand bed on the flat stone of said curb and are bonded on the pervious concrete layer.

Preferably, said gutter width is 100mm-300mm, and the degree of depth is 100mm-150mm.

Preferably, said pervious concrete surface layer is ecological pervious concrete surface layer, is equipped with surface layer pervious concrete topping on this ecology pervious concrete surface layer.

Preferably, the porosity of said pervious concrete layer is 20%-35%.

Preferably, the compacting coefficient of said original state soil layer is greater than 93%.

Preferably, the compacting coefficient of said graded broken stone layer is greater than 94%.

Preferably, said pervious concrete layer is a primary colors pervious concrete layer.

Adopt this technical scheme; Through the gutter being set and on the gutter, laying the pervious concrete layer, make rainwater to communicate with the gutter in little roadside, form a water-permeable passage like this; Make rainwater enter the greenbelt of path side, soil that can moistening greenbelt through this passage.And when the path broad, can carry out the design of two-sided gutter, make rainwater to road greenery patches draining on both sides of the road.When reclaiming the moistening greenbelt of rainwater, changed the wetland performance of porous pavement, it is underground that rainwater can in time be entered, thereby protected the pervious concrete surface layer not receive the damage of water logging.Simultaneously, the permeable pavement structure of this structure, intensity is greater than the gutter or the french drain of general design.General gutter or french drain are designed to empty or do to filter the time spent and insert the rubble packing course, and this practical new technology is inserted the pervious concrete of macroporosity on the gutter, improved the intensity of bottom, and do not have apparent problem.Because of general gutter is located at the outer often and adds the lid of combing, on attractive in appearance not as being located at the pervious concrete gutter of bottom.

Description of drawings:

Further specify the utility model below in conjunction with the accompanying drawing and the specific embodiment.

Fig. 1 is first kind of embodiment of the utility model.

Fig. 2 is second kind of embodiment of the utility model.

The specific embodiment:

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.

As can be seen from Figure 1, the permeable pavement structure of this utility model comprises that original state soil layer 9, graded broken stone layer 8, cement concrete layer 7, pervious concrete surface layer 6, surface layer pervious concrete topping 5, cement sand bed 2 and curb put down stone 1.Original state soil layer 9 compacting coefficients were laid graded broken stone layer 8 in the above greater than 93% o'clock, and with 8 compacting of graded broken stone layer.When graded broken stone layer 8 compacting coefficients greater than 94% the time, lay cement concrete layer 7 above it, can select the C20 cement concrete for use.Side at cement concrete layer 7 leaves the gutter 4 of leading to the path edge, and through sum up finding, the width in this gutter 4 all can obtain drainage effect preferably in 100mm-300mm, the degree of depth during at 100mm-150mm; Before cement concrete layer 7 final set; On gutter 4, insert the pervious concrete layer 3 that porosity is 20%-35% immediately; This pervious concrete layer 3 can be primary colors pervious concrete layer; Carry out surface construction then simultaneously, on cement concrete layer 7 and pervious concrete layer 3, lay pervious concrete surface layer 6, and spread the flat stone 1 of curb on the both sides of path.Be wiped with cement sand bed 2 on the flat stone 1 of this curb, be bonded on the pervious concrete layer 3 through this cement sand bed 2.This pervious concrete surface layer 6 can be ecological pervious concrete surface layer (so-called ecological pervious concrete; Exactly through material screening, add functional additive, adopt that special process is produced to have special construction and a function; Can reduce carrying capacity of environment; Improve the harmony mutually with ecological environment, and the concrete that can contribute for environmental protection), laying surface layer pervious concrete topping 5 on pervious concrete surface layer 6.

As can be seen from Figure 2, when the broad of road surface, adopt bilateral gutter structure.The both sides of this porous pavement cement concrete layer 7 are equipped with the gutter 4 of leading to the path edge; All be equipped with permeable pervious concrete layer 3 in the gutter 4; Lay pervious concrete surface layer 6 on cement concrete layer 7 and the pervious concrete layer 3; And spread curb on the both sides of path and put down stone 1, draining is faster like this.

When causing on the road ponding when raining or snowing, rainwater flows in surface layer pervious concrete topping 5 and the pervious concrete surface layer 6 according to the direction of arrow among the figure, flows through the pervious concrete layer 3 on the gutter, porous pavement one or both sides 4 afterwards, flows in the greenery patches.In moistening greenbelt, changed the wetland performance of porous pavement, it is underground that rainwater can in time be entered, thereby protected the pervious concrete surface layer not receive the damage of water logging.

More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the manual that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. permeable pavement structure; Comprise the original state soil layer; Said original state soil layer upper berth is provided with the graded broken stone layer, it is characterized in that: be equipped with cement concrete layer on the said graded broken stone layer, at least one side of cement concrete layer leaves the gutter of leading to the path edge; Be covered with the pervious concrete layer on the gutter; Be equipped with the pervious concrete surface layer on said cement concrete layer and the pervious concrete layer, the both sides of this permeable pavement structure are covered with the flat stone of curb, are wiped with cement sand bed on the flat stone of said curb and are bonded on the pervious concrete layer.

2. according to the said permeable pavement structure of claim 1, it is characterized in that: said gutter width is 100mm-300mm, and the degree of depth is 100mm-150mm.

3. according to the said permeable pavement structure of claim 2, it is characterized in that: said pervious concrete surface layer is ecological pervious concrete surface layer, is equipped with surface layer pervious concrete topping on this ecology pervious concrete surface layer.

4. according to each said permeable pavement structure in the claim 1 to 3, it is characterized in that: the porosity of said pervious concrete layer is 20%-35%.

5. according to the said permeable pavement structure of claim 1, it is characterized in that: the compacting coefficient of said original state soil layer is greater than 93%.

6. according to the said permeable pavement structure of claim 1, it is characterized in that: the compacting coefficient of said graded broken stone layer is greater than 94%.

7. according to the said permeable pavement structure of claim 1, it is characterized in that: said pervious concrete layer is a primary colors pervious concrete layer.