CN211689742U

CN211689742U - Drainage road surface

Info

Publication number: CN211689742U
Application number: CN201922402047.1U
Authority: CN
Inventors: 王腾飞; 袁月; 徐韵淳; 周维维; 陆文亮; 闫国杰; 周富强; 夏庆宇; 李交
Original assignee: Shanghai Puxing Road & Bridge Construction Engineering Co ltd
Current assignee: Shanghai Pudong Road & Bridge (Group) Co.,Ltd.
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-16
Anticipated expiration: 2029-12-27

Abstract

The utility model provides a drainage road surface, include: by lower supreme soil basic unit, the cement of laying in proper order stabilized metalling and permeable bed, wherein, the permeable bed is including the asphalt concrete block that permeates water and the concrete brick that permeates water, and the concrete brick amalgamation that permeates water forms a plurality of and is used for placing the accommodation space of the asphalt concrete block that permeates water, places a asphalt concrete block that permeates water in every accommodation space. The pervious asphalt concrete block is a cuboid, the thickness is 4-6cm, the void ratio is 14-22%, the length is 5-25cm, and the width is 5-25 cm; and/or; the thickness of the pervious concrete brick is 4-6cm, and the water seepage coefficient is not lower than 800ml/15 s; and/or; the thickness of the cement stabilized macadam layer is 10-30 cm. The dynamic stability of the pervious asphalt concrete block is not lower than 6000 times/mm, and the scattering loss rate is not higher than 15%. The pervious concrete bricks are laid on the cement stabilization gravel layer through cement mortar.

Description

Drainage road surface

Technical Field

The utility model relates to a pavement material technical field indicates a drainage road surface especially.

Background

Sponge cities all over the country are well-trained in construction, and due to good water seepage performance, noise reduction performance and rainy driving safety performance of the drainage asphalt pavement, the drainage asphalt pavement is widely applied to urban motor vehicle lanes and non-motor vehicle lanes such as pedestrian walkways, and is more generally applied to the pedestrian walkways in the construction process of the sponge cities. However, a large number of researches and engineering practices show that the upper layer of the drainage asphalt pavement is open-graded asphalt mixture with large void ratio, and the phenomenon of blockage of the voids of the drainage asphalt pavement is inevitable based on the influence of factors such as environment and the like, and although the introduction of a professional void recovery vehicle slows down the rate of the voids of the pavement to a certain extent, the blockage of the voids is a problem that the application process of the drainage asphalt pavement cannot be avoided.

When the drainage asphalt pavement is applied to positions such as sidewalks, footpaths and the like, due to the limitation of surrounding space and the like, the phenomenon that a professional maintenance vehicle cannot enter for operation often occurs, the gap of the blocked pavement cannot be effectively cleaned by adopting a high-pressure water cleaning measure, and for the maintenance of the drainage asphalt pavement in the areas, more conventional pavement maintenance measures are adopted, which is unfavorable for prolonging the service life of the water seepage performance of the pavement; when the road surface gap is seriously blocked, in order to ensure the water seepage performance of the road surface, the method of milling and then re-paving is needed, the traffic trip is inevitably influenced by the re-construction of the road surface, and the engineering cost is also high.

The above problems limit the application of drainage asphalt pavement to some extent on non-motorized lanes such as pedestrian roads and park footpaths.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drainage road surface blocks up when serious in the road surface space, realizes the quick replacement asphalt concrete block that permeates water, but the concrete block cyclic utilization of change, and the maintenance is swift, reduces the wasting of resources, and the feature of environmental protection is strong.

The utility model provides a technical scheme as follows:

a drainage pavement comprising: a soil base layer, a cement stabilizing gravel layer and a permeable layer which are sequentially laid from bottom to top,

the permeable layer comprises permeable asphalt concrete blocks and permeable concrete bricks, the permeable concrete bricks are spliced to form a plurality of accommodating spaces for accommodating the permeable asphalt concrete blocks, and each accommodating space is internally provided with one permeable asphalt concrete block.

This technical scheme provides a but cyclic utilization environment-friendly pedestrian path drainage pavement, and the road surface adopts the replaceable asphalt concrete block that permeates water, and when the road surface space blockked up seriously, but the quick replacement asphalt concrete block that permeates water, but the concrete block cyclic utilization of change, the maintenance is swift, reduces the wasting of resources, and the feature of environmental protection is strong.

Preferably, the pervious asphalt concrete block is square or rectangular, the thickness is 4-6cm, the void ratio is 14-22%, and the length multiplied by the width is not less than 15 multiplied by 15 cm.

Preferably, the dynamic stability of the pervious asphalt concrete block is not lower than 6000 times/mm, and the scattering loss rate is not higher than 15%.

Preferably, the thickness of the pervious concrete brick is 4-6cm, and the water permeability coefficient is not lower than 800ml/15 s.

Specifically, the pervious concrete bricks are laid on the cement stabilization gravel layer through cement mortar.

Specifically, gaps among the pervious asphalt concrete blocks, the pervious concrete bricks and the cement-stabilized gravel layer are subjected to gap filling treatment by adopting yellow sand or machine-made sand.

Preferably, the thickness of the cement-stabilized macadam layer is 10-30 cm.

The utility model provides a pair of drainage road surface can bring following at least one beneficial effect:

1. the utility model discloses an optimize road surface structural style, adopt the gap asphalt concrete block that permeates water and the concrete brick cross combination surface course form that permeates water, when having guaranteed road surface infiltration ability, adopt this replaceable asphalt concrete block that permeates water, when the road surface gap blocks up seriously, but quick replacement promotes road surface infiltration ability, extension road surface life, and the permeable asphalt concrete block accessible of replacement washs its infiltration ability of mode reduction, or mix new mixture production process as the reclaimed material, the cyclic utilization feature of environmental protection is strong.

2. Adopt removable block road surface structural style, can be based on rainfall and the infiltration demand in different areas, produce the concrete block that permeates water of different void fractions, the actual demand in adaptable different areas in China.

3. The method of laying the base layer and caulking by yellow sand and machine-made sand enables construction and replacement of the pervious asphalt concrete block to be more convenient and quicker, and improves the popularization of the technology.

Drawings

The above features, technical features, advantages and modes of realisation of a draining pavement will be further explained in the following, in a clearly understandable manner, with reference to the accompanying drawings, which illustrate preferred embodiments.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

An embodiment of the present invention, as shown in fig. 1, is a drainage road surface 100 comprising: the soil base layer 110, the cement stabilized gravel layer 120 and the permeable layer 130 laid from bottom to top in proper order, wherein the permeable layer 130 includes a permeable asphalt concrete block 131 and a permeable concrete brick 132, the permeable concrete brick 132 amalgamation forms a plurality of accommodation space for placing the permeable asphalt concrete block 131, places a permeable asphalt concrete block 131 in every accommodation space. Such scheme provides a but cyclic utilization environment-friendly pedestrian path drainage pavement 100, and the road surface adopts interchangeable pervious asphalt concrete block 131, and when the road surface space blockked up seriously, but the pervious asphalt concrete block 131 of quick replacement, but pervious asphalt concrete block 131 cyclic utilization, the maintenance is swift, reduces the wasting of resources, and the feature of environmental protection is strong.

Preferably, the pervious asphalt concrete block 131 is a cuboid, the thickness is 4-6cm, when the rainfall capacity of the construction area in rainy season is high, a grading form with the porosity of 18-22% is adopted, when the rainfall capacity of the construction area in rainy season is not high, the grading form with the porosity of 14-18% is adopted, in order to ensure the compaction effect and the prefabrication quality effect, the length is 5-25cm, the width is 5-25cm, and the volume of the pervious asphalt concrete block 131 is slightly smaller than that of the accommodating space, so that the pervious asphalt concrete block 131 is accommodated.

Preferably, the dynamic stability of the pervious asphalt concrete block 131 is not less than 6000 times/mm, the scattering loss rate is not more than 15%, the asphalt cement of the pervious asphalt concrete block 131 can be SBS modified asphalt, high-viscosity high-elasticity modified asphalt, colorful asphalt and the like, and the aggregate can be basalt, diabase, limestone and the like.

Preferably, the permeable concrete brick 132 has a thickness of 4-6cm and a water permeability coefficient of not less than 800ml/15 s.

Specifically, the pervious concrete bricks 132 are laid on the cement stabilized gravel layer 120 through cement mortar.

Specifically, gaps among the pervious asphalt concrete blocks 131, the pervious concrete bricks 132 and the cement stabilized gravel layer 120 are subjected to gap filling treatment by adopting yellow sand or machine-made sand, the pervious asphalt concrete blocks 131 are directly placed in the reserved blank spaces after the pervious concrete bricks 132 are laid, and 2-3mm yellow or machine-made sand is spread on the bottom cement stabilized gravel layer 120 before the pervious asphalt concrete blocks 131 are laid.

The utility model discloses drainage road surface 100's work progress as follows:

(1) construction preparation: paying off according to design requirements, cleaning the field, and preparing materials and tools.

(2) And (3) roadbed treatment: and compacting the soil layer of the road foundation by using a rammer or a road roller according to the standard requirement, and ensuring that the compaction degree of the soil base layer 110 meets the standard requirement.

(3) And (3) treating the cement stabilized gravel layer 120: and paving a 10-30cm cement-stabilized gravel layer 120 on the roadbed.

(4) Paving the pervious concrete bricks 132: and high-performance cement mortar is adopted, the pervious concrete bricks 132 are laid on the cement stabilization gravel layer 120 and are surrounded to form a plurality of square reserved spaces, and the length and width of each reserved space meet the design requirements.

(5) Paving the surface layer of the pervious asphalt concrete block body 131: before paving, spreading 2-3mm yellow or machine-made sand on the bottom cement stable gravel layer 120, putting the prefabricated permeable asphalt concrete block 131 with fixed size into a reserved blank, beating the block by using a wooden hammer to enable the block to be flush with the surface of the surrounding permeable concrete brick 132, and performing manual gap filling treatment on gaps between the blocks by using yellow sand or machine-made sand.

The utility model discloses drainage road surface 100's the bituminous concrete block 131 surface course that permeates water washs or changes the process as follows:

(1) construction preparation: and preparing materials and tools.

(2) Cleaning the surface layer of the pervious asphalt concrete block 131: when the block is only blocked by gaps and is not damaged, the pervious asphalt concrete block 131 with seriously blocked gaps is taken out from the blank by using a tool, and the blocked gaps of the block are dredged by using an ultrasonic cleaning process to recover the water seepage capability of the block; cleaning the interior of the blank by using a cleaning tool, spreading 2-3mm yellow or machine-made sand again, putting the cleaned old asphalt concrete block into the blank, striking the block by using a wooden hammer to enable the block to be flush with the surface of the surrounding pervious concrete brick 132, and performing manual gap filling treatment on a gap between the block and the brick by using 2-3mm yellow or machine-made sand;

(3) replacement of the surface layer of the pervious asphalt concrete block 131: when the asphalt concrete block is damaged, taking out the damaged permeable asphalt concrete block 131 from the blank space by using a tool, cleaning the inside of the blank space by using a cleaning tool, spreading yellow or machine-made sand of 2-3mm again, putting the prefabricated new permeable asphalt concrete block 131 into the blank space, striking the block by using a wood hammer to enable the block to be flush with the surface of the surrounding permeable concrete brick 132, and performing manual gap filling treatment on a gap between the permeable asphalt concrete block 131 and the permeable concrete brick 132 by using the yellow or machine-made sand of 2-3 mm; the damaged permeable asphalt concrete block 131 is used as a reclaimed material for new asphalt concrete production.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A drainage pavement, comprising:

a soil base layer, a cement stabilizing gravel layer and a permeable layer which are sequentially laid from bottom to top,

2. A drainage pavement according to claim 1, characterized in that:

the pervious asphalt concrete block is a cuboid, the thickness is 4-6cm, the void ratio is 14-22%, the length is 5-25cm, and the width is 5-25 cm;

and/or;

the thickness of the pervious concrete brick is 4-6cm, and the water seepage coefficient is not lower than 800ml/15 s;

and/or;

the thickness of the cement stabilized macadam layer is 10-30 cm.

3. A drainage pavement according to claim 1 or 2, characterized in that:

the dynamic stability of the pervious asphalt concrete block is not lower than 6000 times/mm, and the scattering loss rate is not higher than 15%.

4. A drainage pavement according to claim 1 or 2, characterized in that:

the pervious concrete bricks are laid on the cement stabilization gravel layer through cement mortar.

5. A drainage pavement according to claim 1 or 2, characterized in that:

gaps among the pervious asphalt concrete blocks, the pervious concrete bricks and the cement-stabilized gravel layer are subjected to gap filling treatment by adopting yellow sand or machine-made sand.