CN207552853U - A kind of road surface with drainage system - Google Patents
A kind of road surface with drainage system Download PDFInfo
- Publication number
- CN207552853U CN207552853U CN201721692213.0U CN201721692213U CN207552853U CN 207552853 U CN207552853 U CN 207552853U CN 201721692213 U CN201721692213 U CN 201721692213U CN 207552853 U CN207552853 U CN 207552853U
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- CN
- China
- Prior art keywords
- drainage system
- road surface
- roadbed
- base
- drainage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model discloses a kind of road surfaces with drainage system, including sub-surface and roadbed, drainage system is provided between sub-surface and roadbed, the drainage system includes hydraulic conductivity layer from top to bottom, impervious barrier and separation layer, the angle of inclination of drainage system with respect to the horizontal plane are 3 6%.Wherein, the hydraulic conductivity layer uses non-woven geotextile or glass fabric.The impervious barrier uses geonet.The separation layer uses non-woven geotextile.The road surface of the utility model, its drainage system is located between base and the roadbed of pavement structure, instead of the underlayment in common conventional pav structure, it effectively can farthest realize road surface Quick drainage, make quickly and effectively to discharge the water infiltrated to pavement structure base under unsaturated state, base is avoided to be in saturation state, mitigates the damage of water road pavement structure, improves the drainage performance of base.
Description
Technical field
The utility model belongs to technical field of civil engineering, more particularly to a kind of novel pavement with drainage system.
Background technology
Traditional road surface drainage structure is used sets graded broken stone layer to be typically designed base as drainage channel below base
In the discharging mode of " Time-to-drain ", just start draining when base material is close to saturation.Due to traditional design without
Method realizes the draining under unsaturated state so that pavement structure base often in saturation state, not only affects the draining of base
Performance, but also the moisture content inside roadbed can be caused to increase and lead to humidifying disease etc..This tradition based on saturated flow
Drainage Design can not it is fully effective reduce water road pavement structure adverse effect, can not also ensure improve pavement structure draining
Performance and service life, the safety of serious threat road and use.
Invention content
The purpose of this utility model is to provide a kind of novel pavement with drainage system, solves in the prior art
Under unsaturated seepage state road surface can not draining and the problem of base is caused to be always at saturation state.
To solve the above problems, technical solution is as follows used by the utility model：
A kind of road surface with drainage system, including sub-surface and roadbed, the row of being provided between sub-surface and roadbed
Water system, the drainage system include hydraulic conductivity layer, impervious barrier and separation layer, the inclination of drainage system with respect to the horizontal plane
Angle is 3-6%.
Preferably, the angle of inclination of the drainage system with respect to the horizontal plane is 6%.
Especially the thickness of hydraulic conductivity layer is 5-8mm.
Preferably, the hydraulic conductivity layer uses non-woven geotextile or glass fabric.The impervious barrier is using soil
Work net.The separation layer uses non-woven geotextile.
Wherein, the grammes per square metre of antiseepage layer material is 550 ± 25g/m2, saturation permeability coefficient is 50.5m/h.Insolated layer materials
Grammes per square metre is 200g/m2, saturation permeability coefficient is 12.5m/h.
The beneficial effects of the utility model are：
The road surface of the utility model, drainage system are located between base and the roadbed of pavement structure, instead of common tradition
Underlayment in pavement structure.
The utility model proposes drainage system be that conventional drainage systems are transformed based on unsaturated flow theory.
The drainage system effectively can farthest realize road surface Quick drainage, make to infiltrate to pavement structure under unsaturated state
The water of base is quickly and effectively discharged, and base is avoided to be in saturation state, mitigates the damage of water road pavement structure, improves the row of base
Aqueous energy；Secondly, moreover it is possible to which preventing to be oozed under the moisture on immersion road surface to subgrade soil leads to roadbed humidifying, and roadbed is kept to be in drying
State increases the incipient suction force value of subgrade soils, ensures roadbed integral strength and stability；Finally it is also used as the upper road of roadbed
The reinforcement material of bed portions point, improves roadbed soil classifiction.
The road surface of the utility model compared with tradition, drainage system using can mechanization produce in enormous quantities geotechnique synthesis material
Material etc., and material source is wide, and natural environment is destroyed without exploiting.Conventional discharge material generally requires large scale equipment from great,
Construction period is long.
Description of the drawings
Fig. 1 is the road surface knot schematic diagram of the utility model；The direction of arrow represents the seepage direction of the rainwater intrusion soil body.
Fig. 2 is the road surface unsaturation roadbed schematic diagram for setting the utility model.
In figure, 1. sub-surfaces, 2. roadbeds, 3. drainage systems, 31. hydraulic conductivity layers, 32. impervious barriers, 33. separation layers,
4. face layer, 5. kerbstones, 6. earth shoulders.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
Embodiment 1：
The present embodiment provides a kind of road surface with drainage system, including sub-surface 1 and roadbed 2, on sub-surface 1 and road
Drainage system 3 is provided between base 2, the drainage system 3 includes hydraulic conductivity layer 31, impervious barrier 32 and isolation from top to bottom
Layer 3, hydraulic conductivity layer 31 use non-woven geotextile or glass fabric.Impervious barrier 32 uses geonet.Separation layer 33 is adopted
With non-woven geotextile.The effect of hydraulic conductivity layer 31 is that the moisture for infiltrating into sub-surface is delivered to osculum in time
Or gutter guide is gone out, while upper strata soil particle is also prevented to be immersed in impervious barrier 32, effect is to prevent to ooze simultaneously under moisture
Also undischarged moisture is assembled；Separation layer 33 prevents under moisture bleed-through to cross under sub-surface oozing to roadbed, simultaneously
It is also prevented from lower floor's soil particle and is immersed in impervious barrier 32.
The angle of inclination of drainage system 3 with respect to the horizontal plane is 3-6%, depending on actual conditions, preferably 6%, from
And moisture is caused to enhance lateral guide ability on the basis of unsaturated state Quick drainage.
The thickness of hydraulic conductivity layer 31 is 5-8mm, under the premise of the water guide and drainage performance for ensureing hydraulic conductivity layer, water
Power conducting shell 5 can select other industrial copolymer fibrous materials of more economical type, such as nonwoven glass fibre geotechnique
Cloth, because effect of the conducting shell in addition to needing the function, also lateral drainage of Quick drainage under realization unsaturated state, therefore should
The hydraulic characteristic(s) and water conductivity function of layer are very crucial.The non-woven geotextile of separation layer 33 is long filament needle-punched geotextiles, gram
Weight is 200g/m2, saturation permeability coefficient is 12.5m/h.The geonet of capillary impervious barrier 32 is high density polyethylene (HDPE) (HDPE) height
Molecularly Imprinted Polymer is the plane mesh structure product of primary raw material, and grammes per square metre is 550 ± 25g/m2, saturation permeability coefficient is
50.5m/h。
It is improved as another kind, the position of the novel pavement drainage system of the capillary accumulation type can substantially be divided into following
Three kinds：1. novel pavement arrangement of Drainage is between base and road surface, completely instead of the metalling of conventional pav underlayment；②
Novel pavement drainage system is arranged between underlayment and roadbed, member-retaining portion underlayment；3. novel pavement drainage system is set
Between face layer and base and between road surface and base (paved in multi-layers).
As shown in Figure 2：Road surface provided by the utility model is in the position of general subgrade structure design, general road knot
Structure design includes：(being laid with gradient is for crown slope degree i, face layer 4, kerbstone 5, earth shoulder 6, base 1, new type drainage system 3
And roadbed 2 6%).The new type drainage system 3 wraps up geonet using geotextile, and thickness is 30mm or so, is placed in base 1
Between roadbed 2.
The operation principle of the utility model is：
The Water drainage system design theoretical foundation of the utility model be using between geosynthetics and with traditional ground
The capillary retarding effect that significant hydraulic conductivity difference is formed between material, reaches the draining purpose that blocks water.It is oozed when under moisture
During to sub-surface, the synthetic materials such as glass fiber geocloth of conducting shell can effectively discharge pavement structure under unsaturated state
Internal a large amount of moisture, while the capillary retardance formed between the geonet of the geosynthetics of conducting shell and capillary block layer
Effect can will moisture accumulation prevent it is further under ooze, and to be exactly moisture prevent from immersing in roadbed soil layer separation layer so that road
Moisture content increase leads to humidifying disease etc. in base soil.Therefore in continuous rainfall, the moisture content of base can increase at any time
But saturated aqueous rate is not exceeded, while when rainfall stops, base's moisture content can continuously decrease.Hydraulic conductivity layer
Another main function is that pavement structure base is under unsaturated state and carries out lateral drainage, and is also equipped with certain isolation and makees
With preventing surrounding soil from entering in the hole of geonet；The head into water number of capillary block layer, that is, impervious barrier only has several millimeters,
Therefore with capillary retarding effect can be formed with hydraulic conductivity layer, obstruct and oozed under the Free water of upper strata.Although geonet is mainly used for
Antiseepage rather than lateral drainage, but when there are when positive pore water pressure, geonet can be used as a kind of safety measure, can
The draining under positive pore water pressure；The main function of separation layer is the generation for preventing silting phenomenon, reduces and drainage system is broken
It is bad.When roadbed bottom is there are when relatively low level of ground water, upward unsaturated seepage effect easily occurs for hydrone, is isolated at this time
Layer can laterally discharge the water of upward seepage flow, effectively obstruct the upward seepage flow of water, and the separation layer of bottom is equivalent to hydraulic conductivity layer.
Claims (8)
1. a kind of road surface with drainage system, including sub-surface (1) and roadbed (2), which is characterized in that in sub-surface (1)
Drainage system (3) is provided between roadbed (2), the drainage system (3) includes hydraulic conductivity layer (31), antiseepage from top to bottom
Layer (32) and separation layer (33), the angle of inclination of drainage system (3) with respect to the horizontal plane are 3-6%.
2. the road surface with drainage system as described in claim 1, which is characterized in that the drainage system (3) is with respect to the horizontal plane
Angle of inclination be 6%.
3. the road surface with drainage system as described in claim 1, which is characterized in that the thickness of the hydraulic conductivity layer (31) is 5-
8mm。
4. the road surface with drainage system as described in claim 1, which is characterized in that the hydraulic conductivity layer (31) is using non-woven
Geotextile or glass fabric.
5. the road surface with drainage system as described in claim 1, which is characterized in that the impervious barrier (32) is using geonet.
6. the road surface with drainage system as described in claim 1, which is characterized in that the separation layer (33) uses non-woven geotechnique
Fabric.
7. the road surface with drainage system as claimed in claim 5, which is characterized in that the grammes per square metre of the impervious barrier (32) for 550 ±
25g/m2, saturation permeability coefficient is 50.5m/h.
8. the road surface with drainage system as claimed in claim 6, which is characterized in that the grammes per square metre of the separation layer (33) is 200g/
m2, saturation permeability coefficient is 12.5m/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721692213.0U CN207552853U (en) | 2017-12-07 | 2017-12-07 | A kind of road surface with drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721692213.0U CN207552853U (en) | 2017-12-07 | 2017-12-07 | A kind of road surface with drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207552853U true CN207552853U (en) | 2018-06-29 |
Family
ID=62665362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721692213.0U Expired - Fee Related CN207552853U (en) | 2017-12-07 | 2017-12-07 | A kind of road surface with drainage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207552853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455757A (en) * | 2020-04-14 | 2020-07-28 | 黑龙江省龙建路桥第六工程有限公司 | Road bed universe is hydrophobic-compound three-dimensional geomembrane that blocks water |
| WO2023093813A1 (en) * | 2021-11-26 | 2023-06-01 | 山东交通学院 | Intelligent subgrade humidity control and drainage device based on modified water-absorbent resin, and usage method therefor |
-
2017
- 2017-12-07 CN CN201721692213.0U patent/CN207552853U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455757A (en) * | 2020-04-14 | 2020-07-28 | 黑龙江省龙建路桥第六工程有限公司 | Road bed universe is hydrophobic-compound three-dimensional geomembrane that blocks water |
| WO2023093813A1 (en) * | 2021-11-26 | 2023-06-01 | 山东交通学院 | Intelligent subgrade humidity control and drainage device based on modified water-absorbent resin, and usage method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20201207 |