CN209652669U - A kind of subgrade drainage structure - Google Patents
A kind of subgrade drainage structure Download PDFInfo
- Publication number
- CN209652669U CN209652669U CN201821890581.0U CN201821890581U CN209652669U CN 209652669 U CN209652669 U CN 209652669U CN 201821890581 U CN201821890581 U CN 201821890581U CN 209652669 U CN209652669 U CN 209652669U
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- drainpipe
- roadbed
- sand bedding
- bedding course
- water barrier
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Abstract
The utility model discloses a kind of subgrade drainage structures, belong to roadbed technical field, the subgrade drainage structure includes roadbed, the roadbed includes the asphalt surface course from top to bottom set gradually, sand bedding course, water barrier, concrete layer and metalling, drainpipe is provided between the sand bedding course and the concrete layer, the draining bottom of the tube is fixed on the concrete layer top, the water barrier is passed through at the top of the drainpipe and is located at the sand bedding course bottom, water inlet is offered at the top of the drainpipe, the water inlet is located in the sand bedding course, the water barrier and the draining tube outer surface are tightly connected；The drainpipe both ends extend to outside the roadbed and are connected with gutter, and the drainpipe is connected to setting with the gutter, solve the problems, such as to cause subgrade deformation occur because of ponding inside roadbed or collapse, and ponding inside roadbed can be discharged in time.
Description
Technical field
The utility model relates to roadbed technical field, in particular to a kind of subgrade drainage structure.
Background technique
Roadbed is the basis on track or road surface, is the earthen structure by excavating or filling and formed.The master of roadbed
Act on be for track or road surfacing and train or driving operation necessary condition is provided, and bear track and rolling stock or
The dead load and dynamic load of person road surface and traffic loading, while load being transmitted and being spread to ground depths.On vertical section, road
Base must assure that the elevation that route needs；In the plane, roadbed connect the route that composition completely penetrates through with bridge, tunnel.
Lower rainwater, rainwater can be penetrated into inside roadbed by road surface, and water directly influences the strength and stability of roadbed, such as
Fruit the ponding inside roadbed is not discharged in time, and roadbed will be unable in dry, firm and stable state, to be easy to appear
Subgrade deformation or collapse phenomenon.
Utility model content
The purpose of the utility model is to provide a kind of subgrade drainage structures, and which solve cause because of ponding inside roadbed
The problem of showing subgrade deformation or collapsing.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of subgrade drainage structure, including roadbed, the roadbed include the asphalt surface course from top to bottom set gradually, sand pad
Layer, water barrier, concrete layer and metalling are provided with drainpipe, the draining between the sand bedding course and the concrete layer
Bottom of the tube is fixed on the concrete layer top, and the water barrier is passed through at the top of the drainpipe and is located at the sand bedding course bottom
Portion, the drainpipe top offer water inlet, and the water inlet is located in the sand bedding course, the water barrier and the draining
Tube outer surface is tightly connected；
The drainpipe both ends extend to outside the roadbed and are connected with gutter, the drainpipe and the gutter
Connection setting.
Using the above structure, rainwater is permeated downwards by asphalt surface course and sand bedding course, since water proof being arranged below sand bedding course
Layer, therefore rainwater will be intercepted in sand bedding course, to be flowed into drainpipe through water inlet, and be entered by drainpipe
Into gutter, to achieve the purpose that draining.The water that road surface is permeated can be discharged in time, prevent roadbed inner product
Water improves the stability of roadbed, reduces subgrade settlement, deformation and collapse phenomenon.
It advanced optimizes are as follows: water inlet is provided with sponge sheet at the top of the drainpipe, and the sponge sheet is located at the sand
In bed course and it is coated on the drainpipe outer surface of cupular part.
Using the above structure, it is entered in drainpipe, is dropped by water inlet to prevent impurity such as sand, rubbles in sand bedding course
Low drainpipe, gutter clogging.
It advanced optimizes are as follows: the water barrier is arc shape, and height and position is gradually decreased from middle part to two sides.
Using the above structure, so that rainwater is permeated along water barrier into the exterior earth of roadbed two sides, while can also subtract
Rainwater on the outside of few roadbed is permeated to roadbed internal direction, convenient for discharge ponding in time, extends the service life of roadbed.
It advanced optimizes are as follows: the water barrier is made of two cloth, one film seepage by geo-textile material.
Using the above structure, rainwater can be intercepted in sand bedding course, prevent rainwater from penetrating into coagulation downwards by good water-proof effect
In soil layer and metalling.
It advanced optimizes are as follows: the drainpipe is provided with multiple, and multiple drainpipes are along described width of subgrade direction etc.
It spacing arrangement and is connected to respectively with the gutter.
Using the above structure, rainwater can be discharged in time, drainage effect is preferable.
In conclusion the utility model has the following beneficial effects: rainwater is permeated downwards by asphalt surface course and sand bedding course,
Since water barrier being arranged below sand bedding course, rainwater will be intercepted in sand bedding course, thus through sponge sheet and water inlet, stream
Enter into drainpipe, and entered in gutter by drainpipe, to reach draining purpose.The water that road surface can be permeated
It discharges in time, prevents ponding inside roadbed, improve the stability of roadbed, reduce subgrade settlement, deformation and collapse phenomenon,
Extend the service life of roadbed.
Detailed description of the invention
Fig. 1 is the roadbed transverse direction schematic cross-sectional view of embodiment, is mainly used for embodying the internal structure of roadbed；
Fig. 2 is the roadbed longitudinal direction schematic cross-sectional view of embodiment, is mainly used for embodying the internal structure of roadbed；
Fig. 3 is the partial structural diagram of embodiment, is mainly used for embodying the structure of drainpipe.
In figure, 1, roadbed；11, asphalt surface course；12, sand bedding course；13, water barrier；14, concrete layer；15, metalling；2,
Drainpipe；3, water inlet；4, sponge sheet；5, gutter.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment: a kind of subgrade drainage structure, as shown in Figure 1, 2, 3, including roadbed 1, roadbed 1 include from top to bottom successively
Asphalt surface course 11, sand bedding course 12, water barrier 13, concrete layer 14 and the metalling 15 of setting.Sand bedding course 12 and concrete layer 14
Between be provided with drainpipe 2,2 bottom of drainpipe is fixed on 14 top of concrete layer, is upward through water barrier 13 at the top of drainpipe 2
And it is located at 12 bottom of sand bedding course.Several water inlets 3 are offered at the top of drainpipe 2, water inlet 3 is circular through hole and is located at sand pad
In layer 12, water barrier 13 and 2 outer surface of drainpipe are tightly connected.2 both ends of drainpipe extend to 1 outside of roadbed and are connected with draining
Ditch 5, drainpipe 2 are connected to setting with gutter 5.Drainpipe 2 is provided with multiple, and multiple drainpipes 2 are between 1 width direction of roadbed etc.
It is connected to respectively away from arrangement and with gutter 5.
Referring to Fig.1,2,3, be provided with sponge sheet 4 at 2 top water inlet 3 of drainpipe, sponge sheet 4 be located in sand bedding course 12 and
It is coated on 2 outer surface of cupular part of drainpipe.Water barrier 13 is arc shape, and height and position is gradually decreased from middle part to two sides.Water proof
Layer 13 is made of two cloth, one film seepage by geo-textile material.
Drainage procedure and principle: rainwater is permeated downwards by asphalt surface course 11 and sand bedding course 12, due to 12 lower section of sand bedding course
Water barrier 13 is set, therefore rainwater will be intercepted in sand bedding course 12, to be flowed into draining through sponge sheet 4 and water inlet 3
It in pipe 2, and is entered in gutter 5 by drainpipe 2, to reach draining purpose.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (5)
1. a kind of subgrade drainage structure, including roadbed (1), it is characterized in that: the roadbed (1) includes from top to bottom setting gradually
Asphalt surface course (11), sand bedding course (12), water barrier (13), concrete layer (14) and metalling (15), the sand bedding course (12) and
It is provided with drainpipe (2) between the concrete layer (14), drainpipe (2) bottom is fixed on the concrete layer (14)
Portion, drainpipe (2) top pass through the water barrier (13) and are located at the sand bedding course (12) bottom, the drainpipe (2)
Top offers water inlet (3), and the water inlet (3) is located in the sand bedding course (12), the water barrier (13) and the row
Water pipe (2) outer surface is tightly connected；
Drainpipe (2) both ends extend to the roadbed (1) outside and are connected with gutter (5), the drainpipe (2) and institute
State gutter (5) connection setting.
2. a kind of subgrade drainage structure according to claim 1, it is characterized in that: water inlet (3) at the top of the drainpipe (2)
Place is provided with sponge sheet (4), and the sponge sheet (4) is located in the sand bedding course (12) and is coated at the top of the drainpipe (2)
Outer surface.
3. a kind of subgrade drainage structure according to claim 1, it is characterized in that: the water barrier (13) is arc shape, and
Height and position is gradually decreased from middle part to two sides.
4. a kind of subgrade drainage structure according to claim 3, it is characterized in that: the water barrier (13) uses two cloth, one film
Seepage by geo-textile material is made.
5. a kind of subgrade drainage structure according to claim 1, it is characterized in that: the drainpipe (2) be provided with it is multiple, it is more
A drainpipe (2) equidistantly arranges along the roadbed (1) width direction and is connected to respectively with the gutter (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821890581.0U CN209652669U (en) | 2018-11-16 | 2018-11-16 | A kind of subgrade drainage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821890581.0U CN209652669U (en) | 2018-11-16 | 2018-11-16 | A kind of subgrade drainage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209652669U true CN209652669U (en) | 2019-11-19 |
Family
ID=68506486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821890581.0U Active CN209652669U (en) | 2018-11-16 | 2018-11-16 | A kind of subgrade drainage structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN209652669U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176807A (en) * | 2020-10-21 | 2021-01-05 | 中国铁路青藏集团有限公司 | Device for discharging water in roadbed and application method |
| CN113863072A (en) * | 2021-10-12 | 2021-12-31 | 广东深已建设工程有限公司 | Construction method for widening roadbed of concrete highway |
| CN114541212A (en) * | 2022-03-24 | 2022-05-27 | 江西省交通运输科学研究院有限公司 | Anti-skid reinforced structure and method for expressway |
-
2018
- 2018-11-16 CN CN201821890581.0U patent/CN209652669U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176807A (en) * | 2020-10-21 | 2021-01-05 | 中国铁路青藏集团有限公司 | Device for discharging water in roadbed and application method |
| CN112176807B (en) * | 2020-10-21 | 2022-04-26 | 中国铁路青藏集团有限公司 | Device for discharging water in roadbed and application method |
| CN113863072A (en) * | 2021-10-12 | 2021-12-31 | 广东深已建设工程有限公司 | Construction method for widening roadbed of concrete highway |
| CN113863072B (en) * | 2021-10-12 | 2022-09-16 | 广东深已建设工程有限公司 | Construction method for widening roadbed of concrete highway |
| CN114541212A (en) * | 2022-03-24 | 2022-05-27 | 江西省交通运输科学研究院有限公司 | Anti-skid reinforced structure and method for expressway |
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