CN205653671U

CN205653671U - Bituminous paving permeates water in sponge type city

Info

Publication number: CN205653671U
Application number: CN201521064695.6U
Authority: CN
Inventors: 陈栋; 何唯平
Original assignee: Shenzhen Oceanpower New Material Technology Co Ltd
Current assignee: Shenzhen Qianhai Haichuan New Material Technology Co.,Ltd.
Priority date: 2015-12-18
Filing date: 2015-12-18
Publication date: 2016-10-19
Anticipated expiration: 2025-12-18

Abstract

The utility model discloses a bituminous paving permeates water in sponge type city from top to bottom includes respectively: the particulate formula is permeated water asphalt concrete and is gone up surface course, large -gap permeate water surface course under the asphalt concrete, drainage type asphalt macadam layer, graded gravel layer, prevention of seepage loaded filter and road bed. The utility model discloses an optimizing pavement structure design, adopting multi -storied permeable pavement, it is less to go up the surface course dynamic porosity, stops solid particle to get into the structural layer that permeates water, can guarantee the smooth and easy infiltration of permeable pavement to the rainwater simultaneously to reduce the ageing of superficial layer, extension road surface life slows down that to permeate water bituminous paving ageing, have penetration effect good, lay the cost and lower and lay characteristics such as simple process, can satisfy sponge city type and permeate water bituminous paving's way and use the performance requirement.

Description

A kind of sponge-type urban water-through bituminous paving

Technical field

This utility model relates to ground surface material field, particularly relates to a kind of sponge-type urban water-through drip Blue or green road surface.

Background technology

In sponge-type urban construction, asphalt paving is a most important ring.Have permeable Mat formation and will dramatically increase city spongy body in the urban road of function, community road, park, square etc., When rainfall, rainwater oozes with regard to underground, and road surface absorbs moisture as sponge, thus eliminates ground area Water, reduces wheel-slip, reduces water smoke effect so that drive a vehicle safer, delay flood peak to occur Time, reduce ground flood, additionally also act as reduction noise, the humiture of adjusting ambient, Reduce the effects such as tropical island effect.

The asphalt paving in sponge-type city in actual use, due to the voidage of road table Relatively big, Colophonium and air contact area are relatively big, poor durability, granule foreign material, and dust storm dust etc. is very It is easily accessible table space, road, and is deep into below road table, block hole, and be difficult to clear up, reduce Road surface coefficient of permeability, affects sponge-type urban construction effect.Additionally, permeable roadbed is chronically at tide Under wet condition, basic unit easily softens expansion, under the continuous action of vehicular load, and subgrade soil mud Slurry easily returns in permeable structure, thus foundation instability, road surface purt is starched, is affected the actually used of road surface.

Utility model content

This utility model is mainly solving the technical problems that the pervious asphalt in existing sponge-type city Pavement durability difference is the most blocked, it is difficult to cleaning, and the purpose of this utility model is to provide one Sponge-type urban water-through bituminous paving, can slow down asphalt paving aging, prevents table space, road from blocking up Plug, keeps the permeable effect in road surface, it is achieved the smooth and easy infiltration to rainwater.

For solving above-mentioned technical problem, the technical scheme that this utility model uses is: provide one Plant sponge-type urban water-through bituminous paving, include the most respectively: particulate formula pervious asphalt coagulation Soil upper layer, big space pervious asphalt concrete cutting optimal, drainage type bituminous macadam, grating are broken Rock layers, anti_permeability filter layer and roadbed.

Preferably, the thickness of described particulate formula pervious asphalt concrete upper layer is 2.5-3cm, empty Gap rate is 10-15%；The thickness of described big space pervious asphalt concrete cutting optimal is 5-8cm, empty Gap rate is 18-25%.

Preferably, the thickness of described drainage type bituminous macadam is 8-15cm, and voidage is 18-25%.

Preferably, the thickness of described graded broken stone layer is 10-30cm, and voidage is 18-25%.

Preferably, described anti_permeability filter layer is from bottom to top to lay layer 2-4 particle diameter in anti-filter geotextiles Subtracting big rubble or cobble step by step, thickness is 10-20cm.

Preferably, described roadbed is sandy soil, clay, loess, gravelly soil etc..

The beneficial effects of the utility model are: be different from the situation of prior art, and this utility model leads to Crossing optimization Pavement Structure Design, use the porous pavement of multilamellar, upper layer voidage is less, stops Solid particle enters permeable structure layer, can ensure that porous pavement realizes oozing the smooth and easy of rainwater simultaneously Thoroughly, keep the permeable effect in road surface, and reduce the aging of surface layer, prolonging service life of pavement, subtract Slow asphalt paving is aging.It addition, this utility model is by arranging the antiseepage of multilamellar on roadbed Loaded filter, it is to avoid destabilization of roadbed, has consolidated permeable pavement structure, is allowed to really play sea, city Continuous effect, feature, the energy such as have that osmotic effect is good, it is relatively low to lay cost and laying process is simple Meet the pavement performance requirement of sponge urban type asphalt paving.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model sponge-type urban water-through bituminous paving.

Detailed description of the invention

Referring to Fig. 1, this utility model provides a kind of sponge-type urban water-through bituminous paving, by upper Include respectively to lower: above particulate formula pervious asphalt concrete 1, the pervious asphalt concrete of big space Cutting optimal 2, drainage type bituminous macadam 3, graded broken stone layer 4, anti_permeability filter layer 5 and roadbed 6.

Wherein, the thickness of particulate formula pervious asphalt concrete upper layer 1 is 2.5-3cm, voidage For 10-15%；This pervious asphalt can use SBS modified pitch, high-viscosity asphalt, SBR modification drip Green grass or young crops, rubber asphalt, light colour Colophonium, color asphalt etc., aggregate used by it can be basalt, Hua Gang Rock, diabase, limestone etc..

The thickness of big space pervious asphalt concrete cutting optimal 2 is 5-8cm, and voidage is 18-25%. This pervious asphalt can use SBS modified pitch, high-viscosity asphalt, SBR modified pitch, rubber asphalt Deng, aggregate used by it can be basalt, granite, diabase, limestone etc..

The thickness of drainage type bituminous macadam 3 is 8-15cm, and voidage is 18-25%.Its medium sand Grain modulus of fineness is 3.1-3.7.

The thickness of graded broken stone layer 4 is 10-30cm, and voidage is 18-25%, and building stones used crush Value is not more than 30%, and water absorption rate is not more than 3.0%.

Anti_permeability filter layer 5 subtracts big for from bottom to top laying layer 2-4 particle diameter in anti-filter geotextiles step by step Rubble or cobble, thickness is 10-20cm, and grid modulus is 1.6-3.7, and rubble with cobble is The particle diameter rock particles more than 4.75mm.Anti_permeability filter layer 5 with layer gather materials between do not produce movement, Any layer granule does not the most allow the hole through adjacent a layer.

Roadbed 6 is sandy soil, clay, loess, gravelly soil etc., should meet carrying after immersion Power.

The work progress of this utility model sponge-type urban water-through bituminous paving is as follows:

1). preparation of construction: require unwrapping wire, and prune job place according to design, do good material, Instrument prepares.

2). roadbed treatment: with tamping machine or road roller, the original soil layer of roadbed is tamped or compacting, formed Original subgrade layer, if original soil layer is not suitable for doing porous base course, then carry out excavation change fill out after enter again Row compacting, and reach the compactness of more than 93%.

3). laying anti-filter geotextiles on roadbed 6, geotextile laying direction wants correct, according to institute The mode of overlap joint between welding or width can be used with anti-filter geotextile material when splicing.

4). when anti_permeability filter layer 5 is laid, lay layer 2-4 sand grains, rubble, cobble from the bottom to top, Each layer particle diameter from the bottom to top is gradually increased, and with layer gather materials between do not produce movement, any layer granule The hole through adjacent one layer, the voidage of gravelly sand and coarse grain loaded filter is not the most allowed all to cannot be less than 35%, cobble and cobble answer quality hard durable.

5). on anti_permeability filter layer 5, laying depth is at the graded broken stone layer 4 of 10-30cm, rubble In should not contain the impurity such as ball clay, plant, voidage is 18-25%.Building stones crush values used is not More than 30%, water absorption rate is not more than 3.0%.

6). on graded broken stone layer 4, dispense sticking layer oil, then lay the drainage type Colophonium of 8-15cm Metalling 3, voidage is 18-25%, can use coarse grain formula or extraordinarily thick formula, its nominal maximum particle diameter For 26.5-37.5mm, paver can be used to carry out plantmix's asphalt macadam and to pave, and press road with 8-12t Machine grinding leveling.

7). lay big space pervious asphalt after dispensing sticking layer oil on drainage type bituminous macadam 3 and mix Solidifying soil cutting optimal 2, thickness is 5-8cm, and voidage is 18-25%, and pave compacting, and compactness should Reach to design requirement, paving process sets special messenger with machine oil brushing roller drum, prevent roller from gluing Walk pellet.

8). last, lay particulate formula after big space pervious asphalt cutting optimal 2 dispenses sticking layer oil Pervious asphalt concrete surface layer 1, thickness is 2.5-3cm, and voidage is 10-15%, and pave compacting, Reach to design requirement.This pervious asphalt can use SBS modified pitch, high-viscosity asphalt, SBR modified Colophonium, rubber asphalt, light colour Colophonium, color asphalt etc., aggregate used by it can be basalt, flower Gang Yan, diabase, limestone etc..

This utility model, by optimizing Pavement Structure Design, uses the porous pavement of multilamellar, upper layer Voidage is less, stops solid particle to enter permeable structure layer, can ensure that porous pavement is real simultaneously The now smooth and easy infiltration to rainwater, keeps the permeable effect in road surface, and reduces the aging of surface layer, extends Service life of road surface, slows down asphalt paving aging.It addition, this utility model is by roadbed On the anti_permeability filter layer of multilamellar is set, it is to avoid destabilization of roadbed, consolidated permeable pavement structure, made The effect really playing city sponge, have osmotic effect good, lay cost relatively low and lay work The features such as skill is simple, can meet the pavement performance requirement of sponge urban type asphalt paving.

The foregoing is only embodiment of the present utility model, not thereby limit of the present utility model specially Profit scope, every equivalent structure utilizing this utility model description and Figure of description to be made or etc. Effect flow process conversion, or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in In scope of patent protection of the present utility model.

Claims

1. a sponge-type urban water-through bituminous paving, it is characterised in that include the most respectively: particulate formula pervious asphalt concrete upper layer, big space pervious asphalt concrete cutting optimal, drainage type bituminous macadam, graded broken stone layer, anti_permeability filter layer and roadbed.

Sponge-type urban water-through bituminous paving the most according to claim 1, it is characterised in that the thickness of described particulate formula pervious asphalt concrete upper layer is 2.5-3cm, and voidage is 10-15%；The thickness of described big space pervious asphalt concrete cutting optimal is 5-8cm, and voidage is 18-25%.

Sponge-type urban water-through bituminous paving the most according to claim 2, it is characterised in that the thickness of described drainage type bituminous macadam is 8-15cm, voidage is 18-25%.

Sponge-type urban water-through bituminous paving the most according to claim 1, it is characterised in that the thickness of described graded broken stone layer is 10-30cm, voidage is 18-25%.

Sponge-type urban water-through bituminous paving the most according to claim 1, it is characterised in that described anti_permeability filter layer is rubble or the cobble that anti-filter geotextiles from bottom to top lays that layer 2-4 particle diameter increases step by step, thickness is 10-20cm.