CN203373634U - Drainage bituminous pavement structure - Google Patents
Drainage bituminous pavement structure Download PDFInfo
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- CN203373634U CN203373634U CN201320424431.1U CN201320424431U CN203373634U CN 203373634 U CN203373634 U CN 203373634U CN 201320424431 U CN201320424431 U CN 201320424431U CN 203373634 U CN203373634 U CN 203373634U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to a drainage bituminous pavement structure, belonging to the technical field of road construction. The pavement structure comprises a pavement layer having the slope of inclining toward two sides for drainage as well as a water-resisting layer separating the pavement layer from a foundation, wherein a water collecting layer, the voidage of which is 35%-40%, is arranged at the lower part of each of two sides of the pavement layer, the external sides of the water collecting layers are communicated with catch drains built at two sides of the pavement through declining water penetration holes distributed at intervals, the pavement layer is a drainage bituminous pavement layer with the voidage of 18%-25%, two sides of the water-resisting layer respectively extend to the catch drains from the bottom of the water collecting layer, and the bottom of each catch drain is lower than each water collecting layer. The drainage bituminous pavement structure realizes a drainage function organically combining permeating, blocking and draining, can remarkably reduce the splash and water mist generated by traveling vehicles in rainy days, and can maintain good visuality.
Description
Technical field
The utility model relates to a kind of road surface, and especially a kind of drainage type asphalt pavement structure, belong to the road construction technical field.
Background technology
The problem that rainy day drives often to run on speedway and so on can be run at high speed road is that the rainwater on road surface can't be got rid of in time, therefore often by the vehicle of front, is splash, and forms the water smoke of obstructing the view, and has a strong impact on traffic safety.
Along with developing rapidly of road construction, waterproof construction and the construction processing of highway come into one's own day by day.The Chinese utility model patent that the patent No. is ZL201010132658.X and ZL201010132668.3 discloses respectively essentially identical two kinds of waterproof shock-absorption road surface structures and job practices thereof, its road surface comprises surface layer from top to bottom, basic unit, drainage blanket and roadbed, the waterproof shock-absorption functional layer is set between surface layer and basic unit, fluid-tight waterproofing course is set between basic unit and drainage blanket, waterproofing course and basic unit, the equal natural separation of drainage blanket, between drainage blanket and roadbed, water-permeable filter layer is set, job practices is: be roadbed from bottom to top, water-permeable filter layer, drainage blanket, waterproofing course, basic unit, waterproof shock-absorption functional layer and surface layer.Though this type of road surface is for preventing that the destruction that road table water and underground water road pavement and roadbed cause has certain effect, for the speedway of the timely draining of needs, and unsolved problem.
Summary of the invention
The purpose of this utility model is: the shortcoming existed for above-mentioned prior art proposes a kind of drainage type flexible pavement that can timely and effectively avoid road ponding, thereby is conducive to guarantee the rainy day traffic safety.
In order to reach above purpose, drainage type flexible pavement of the present utility model comprises having to the supercrust of both sides inclination draining gradient and water barrier that supercrust and ground are separated, it is characterized in that: described supercrust two side lower parts have the layer that catchments that void content is 35%-40%, the described layer outside of catchmenting is communicated with the collecting gutter of constructing on the both sides, road surface by the spaced apart water seepage hole that has a down dip, the porous asphalt pavement layer that described supercrust is void content 18%-25%, described water barrier both sides extend to collecting gutter from the layer bottom of catchmenting respectively, the bottom of described collecting gutter is lower than the layer that catchments.
Drainage type flexible pavement of the present utility model (being called for short OGFC) or title asphalt paving have been realized the drain function that " thoroughly ", " blocking up ", " row " organically combine.Because water barrier is waterproof, therefore avoided the rain erosion roadbed, the rainwater of infiltration road table is the floor that catchments to trackside by the horizontal seepage flow of porous asphalt pavement floor, and is pooled in the collecting gutter that is arranged on roadside, drains into the drainage systems such as discharge pipe line by collecting gutter.Therefore dabbling of can making the rainy day driving produce significantly reduces with water smoke, keeps good visuality.
It is that described collecting gutter has necking section spaced apart that the utility model further improves.While flowing through necking section in collecting gutter when rainwater, will produce certain Venturi effect, thereby the layer that catchments is produced to " suction " effect, rainwater is wherein more easily entered in collecting gutter by water seepage hole.
In a word, the utility model is by seepage theory analysis and repetition test, determined the rational void content 18%-25% of blacktop---void content is excessive affects pavement strength and life-span, too small impeded drainage, void content is controlled by rational macadam gradating and asphalt content, thereby not only make pavement strength up to standard, and more than transmission coefficient reaches 0.1cm/s, can discharge the above moderate rain or heavy rain of amount of precipitation 25mm/24h, drainage effect ideal when moderate rain and light rain, can not form surface flow.For heavy or torrential rain, what affect vision is mainly the rainwater of landing, and the rainwater of road table will, rain stop after in time eliminating little at rain, thereby significantly improves travel safety.And road surface of the present utility model has desirable cling property, even, in the situation that the road table has water, still can maintain the good contact on tire and road surface, avoid " water floats " phenomenon.In addition, the drainage type flexible pavement has also played the effect of porous absorption material, therefore has the pavement noise of reduction function, and compressed air dissipates in time by space, thoroughly eliminates rear " sonic boom " produced that discharge of tire bottom air compression.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
The structural representation that Fig. 1 is an embodiment of the utility model.
The collecting gutter structural representation that Fig. 2 is Fig. 1 embodiment.
The specific embodiment
Embodiment mono-
As shown in Figure 1, supercrust 1 is the porous asphalt pavement layer that thickness 5-8cm, void content are 18%-25% to the basic structure of the present embodiment drainage type flexible pavement, has to be greater than 1.5%(and to be controlled at 1.5%-3% and to be advisable) to both sides inclination draining gradient.The water barrier 2 that thickness is 15～20mm is by 0.3～0.5kg/m
2modified emulsifying asphalt form, supercrust 1 and ground are separated.It is the layer 3 that catchments that 15～20cm, void content are 35%-40% that 1 liang of side lower part of supercrust has thickness, and layer 3 outside of catchmenting are communicated with the collecting gutter 6 of constructing on the both sides, road surface by the spaced apart water seepage hole 5 that has a down dip.The bottom of collecting gutter 6 is lower than the layer 3 that catchments.One side on collecting gutter 6 contiguous road surfaces is the road curb 4 that concrete forms, and settles gutter 7 in ditch.Water barrier 2 both sides extend to collecting gutter 6 from layer 3 bottom of catchmenting respectively.Collecting gutter 6 is intervally distributed with the arc transition convex 8 that forms necking section along its length.The equal corresponding necking section in the transverse joint place of road surfacing.
The present embodiment drainage type asphalt pavement construction comprises the following steps:
The first step, lay water barrier---after carrying out with conventional method the roadbed that both sides have ditch by predetermined absolute altitude, full width is spilt paving 0.3～0.5kg/m
2modified emulsifying asphalt 15～20mm thick, treat that the complete breakdown of emulsion of modified emulsifying asphalt does solid work the formation water barrier; As found, the roadbed infiltration coefficient is greater than 50ml/min, first spills paving 0.15～0.2kg/m
2modified emulsifying asphalt to infiltration coefficient be less than 50ml/min;
Second step, filling is catchmented, and layer---on the water barrier of trackside ditch, the filled bitumen macadam-aggregate mix is also tamped, rubble is pressed following mass percent grating: 100% crosses 19 millimeters sieve apertures, 90-100% crosses 16 millimeters sieve apertures, 70-90% crosses 13.2 millimeters sieve apertures, 45-70% crosses 9.5 millimeters sieve apertures, 12-30% crosses 4.75 millimeters sieve apertures, 10-22% crosses 2.36 millimeters sieve apertures, 6-18 crosses 1.18 millimeters sieve apertures, 4-15% crosses 0.6 millimeter sieve aperture, 3-12% crosses 0.3 millimeter sieve aperture, 3-8% crosses 0.15 millimeter sieve aperture, 2-6% crosses 0.075 millimeter sieve aperture, thereby the layer that catchments that the formation void content is 35%-40%, layer upper surface that catchment is concordant with road surface water barrier upper surface,
The 3rd step, construct collecting gutter---construct the concrete collecting gutter is communicated with the layer that catchments by the water seepage hole that has a down dip spaced apart in the layer outside of catchmenting, the collecting gutter absolute altitude is marked lower than the layer that catchments, and a side on collecting gutter 6 vicinity road surfaces is built up the road curb higher than road surface;
The 4th step, making porous asphalt pavement layer---by following mass percent graded broken stone: 100% crosses 13.2 millimeters sieve apertures, 90-100% crosses 9.5 millimeters sieve apertures, 50-70% and crosses 4.75 millimeters sieve apertures, 10-22% and cross 2.36 millimeters sieve apertures, 6-18 and cross 1.18 millimeters sieve apertures, 4-15% and cross 0.6 millimeter sieve aperture, 3-12% and cross 0.3 millimeter sieve aperture, 3-8% and cross 0.15 millimeter sieve aperture, 2-6% and cross 0.075 millimeter sieve aperture; Pitch accounts for the percentage of pitch and macadam-aggregate mix
Pb=h * (2+0.02a+0.04b+0.08c+0.14d+0.3e+0.6f+1.6g)/48.74, asphalt membrane average thickness h gets 14(μ m), a, b, c, d, e, f, g are respectively rubble by the percentage (%) of 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm, 0.15mm, 0.075mm sieve aperture, after being melted, evenly mixes with rubble asphalt heating, at road surface bedding bituminous concrete moxture, through rolling, form the porous asphalt pavement layer that void content is 18%-25%.
Facts have proved, fluid-tight water barrier has effectively been avoided the rain erosion roadbed, and rainwater infiltrates the road table with a fixed gap, the layer that catchments by the horizontal seepage flow of porous asphalt pavement layer to trackside, and be pooled in the collecting gutter that is arranged on roadside, drain into drainage system by collecting gutter and gutter.And take necking section structure spaced apart, can be by Venturi effect, infiltration in the layer that catchments is produced to certain suction guide functions, rainwater is wherein entered in collecting gutter by water seepage hole more rapidly, further reduce dabbling and water smoke of (the equal conditions amount of dabbling result of the test shows to reduce by 15% left and right) rainy day driving generation, keep good visuality.
Embodiment bis-
The basic condition of the present embodiment and embodiment mono-are basic identical, difference is: the about 5cm of porous asphalt pavement layer, and also be covered with the bed course of the about 3cm of thickness between water barrier, bed course is pressed following mass percent graded broken stone: 100% crosses 16 millimeters sieve apertures, 90-100% crosses 13.2 millimeters sieve apertures, 60-80% crosses 9.5 millimeters sieve apertures, 12-30% crosses 4.75 millimeters sieve apertures, 10-22% crosses 2.36 millimeters sieve apertures, 6-18 crosses 1.18 millimeters sieve apertures, 4-15% crosses 0.6 millimeter sieve aperture, 3-12% crosses 0.3 millimeter sieve aperture, 3-8% crosses 0.15 millimeter sieve aperture, 2-6% crosses 0.075 millimeter sieve aperture, therefore its void content is greater than the porous asphalt pavement layer.Infiltration like this, drainage effect is better.
The process that rolls is pressed the speed final pressure 2-3 time of 6-8 all over, 2～3km/h with the speed first pressing 2-3 of 1.5～2km/h again all over the speed of, 4～5km/h.While rolling, the adjacent band that rolls should be taken turns wide by overlapping 1/3-1/2.Longitudinal seam adopts the hot joining seam, during construction, the bituminous concrete moxture edge paved is stayed to 10～20cm is wide wouldn't roll, as after the height datum that paves, until after after the bituminous concrete moxture that paves paves, across seam, roll, to eliminate the seam mark, construction effect is better.
The compound macadam gradating of above embodiment is summarized as follows table
Compound rubble (mineral aggregate) grating table
?the utility model can also have other embodiments.For example the arc transition convex both can be by the unidirectional convex of collecting gutter one side, also can be from the two-way convex in collecting gutter both sides.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1. a drainage type asphalt pavement structure, comprise and having to the supercrust of both sides inclination draining gradient and water barrier that supercrust and ground are separated, it is characterized in that: described supercrust two side lower parts have the layer that catchments that void content is 35%-40%, the described layer outside of catchmenting is communicated with the collecting gutter of constructing on the both sides, road surface by the spaced apart water seepage hole that has a down dip, the porous asphalt pavement layer that described supercrust is void content 18%-25%, described water barrier both sides extend to collecting gutter from the layer bottom of catchmenting respectively, and the bottom of described collecting gutter is lower than the layer that catchments.
2. drainage type asphalt pavement structure according to claim 1, it is characterized in that: described collecting gutter has necking section spaced apart.
3. drainage type asphalt pavement structure according to claim 2 is characterized in that: described collecting gutter is intervally distributed with the arc transition convex that forms necking section along its length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424431.1U CN203373634U (en) | 2013-07-17 | 2013-07-17 | Drainage bituminous pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424431.1U CN203373634U (en) | 2013-07-17 | 2013-07-17 | Drainage bituminous pavement structure |
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| CN203373634U true CN203373634U (en) | 2014-01-01 |
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| CN201320424431.1U Expired - Fee Related CN203373634U (en) | 2013-07-17 | 2013-07-17 | Drainage bituminous pavement structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334366A (en) * | 2013-07-17 | 2013-10-02 | 深圳市兴班建筑工程有限公司 | Water-draining type asphalt pavement and construction method |
| CN104631263A (en) * | 2014-12-31 | 2015-05-20 | 王新华 | Water damage-preventive cement concrete pavement and construction method thereof |
| CN104652223A (en) * | 2015-02-04 | 2015-05-27 | 成都科创佳思科技有限公司 | Road facility structure |
| CN105908593A (en) * | 2016-05-26 | 2016-08-31 | 山西省交通科学研究院 | Drainage pavement hole blockage early warning device and installation method and early warning calculation method thereof |
| CN108385464A (en) * | 2018-02-01 | 2018-08-10 | 中国十七冶集团有限公司 | A kind of cell road cross fall control method |
| CN108442203A (en) * | 2018-05-23 | 2018-08-24 | 华夏易能（广东）新能源科技有限公司 | Highway structure |
-
2013
- 2013-07-17 CN CN201320424431.1U patent/CN203373634U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334366A (en) * | 2013-07-17 | 2013-10-02 | 深圳市兴班建筑工程有限公司 | Water-draining type asphalt pavement and construction method |
| CN103334366B (en) * | 2013-07-17 | 2015-10-28 | 深圳市兴班建筑工程有限公司 | A kind of construction method of drainage type flexible pavement |
| CN104631263A (en) * | 2014-12-31 | 2015-05-20 | 王新华 | Water damage-preventive cement concrete pavement and construction method thereof |
| CN104652223A (en) * | 2015-02-04 | 2015-05-27 | 成都科创佳思科技有限公司 | Road facility structure |
| CN105908593A (en) * | 2016-05-26 | 2016-08-31 | 山西省交通科学研究院 | Drainage pavement hole blockage early warning device and installation method and early warning calculation method thereof |
| CN105908593B (en) * | 2016-05-26 | 2018-04-24 | 山西省交通科学研究院 | A kind of drainage pavement pore plugging prior-warning device and its installation method and early warning computational methods |
| CN108385464A (en) * | 2018-02-01 | 2018-08-10 | 中国十七冶集团有限公司 | A kind of cell road cross fall control method |
| CN108442203A (en) * | 2018-05-23 | 2018-08-24 | 华夏易能（广东）新能源科技有限公司 | Highway structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20150717 |
|
| EXPY | Termination of patent right or utility model |