CN114182657A

CN114182657A - Roadbed structure convenient for discharging accumulated water in roadbed

Info

Publication number: CN114182657A
Application number: CN202111320536.8A
Authority: CN
Inventors: 张敏; 刘国权; 韩峰; 邹小兵
Original assignee: China Railway 19th Bureau Group Co Ltd; Third Engineering Co Ltd of China Railway 19th Bureau Group Co Ltd
Current assignee: China Railway 19th Bureau Group Co Ltd; Third Engineering Co Ltd of China Railway 19th Bureau Group Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-03-15

Abstract

The disclosure relates to a roadbed structure convenient for discharging accumulated water in a roadbed, which comprises the roadbed, a concrete layer, a base layer and an asphalt layer which are sequentially arranged from bottom to top; at least one side of the roadbed is provided with a drainage ditch, and a first waterproof layer, a permeable layer and a filter layer are sequentially arranged between the base layer and the asphalt layer from bottom to top; a water storage tank, a water inlet pipe and a first drainage pipe are arranged in the base layer, one end of the water inlet pipe penetrates through the first waterproof layer and is communicated with the permeable layer, and the other end of the water inlet pipe is communicated with the water storage tank, so that accumulated water on the asphalt layer sequentially passes through the filter layer, the permeable layer and the water inlet pipe and enters the water storage tank; the water inlet and the water storage box intercommunication of first drain pipe, the delivery port of first drain pipe is stretched out outside the basic unit by one side of basic unit, and is located the top in escape canal to make the water in the water storage box discharge to the escape canal through first drain pipe in, thereby realized the timely discharge of the inside water of roadbed structure, guaranteed roadbed structure's stability, prevent that the roadbed from collapsing.

Description

Roadbed structure convenient for discharging accumulated water in roadbed

Technical Field

The utility model relates to a roadbed drainage technical field especially relates to a roadbed structure convenient to discharge inside ponding of roadbed.

Background

The roadbed is a foundation of a track or a road surface and is an earth structure formed by excavation or filling. The roadbed mainly has the functions of providing necessary conditions for track or road surface laying and train or traveling operation, bearing static load and dynamic load of track and locomotive vehicle or road surface and traffic load, and transmitting and diffusing the load to the deep part of the foundation.

In rainy day, the inside of road bed can be permeated to the rainwater, if not in time will permeate the inside rainwater of road bed and discharge, can make the inside humidity of road bed great, the time of having a specified duration can make the inner structure of road bed stable inadequately to make the road bed take place the phenomenon of collapsing easily, influence people's normal trip.

Disclosure of Invention

In order to solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a roadbed structure facilitating drainage of water accumulated inside a roadbed.

The roadbed structure comprises a roadbed, a concrete layer, a base layer and an asphalt layer which are sequentially arranged from bottom to top;

a drainage ditch is formed in at least one side of the roadbed, and a first waterproof layer, a permeable layer and a filter layer are sequentially arranged between the base layer and the asphalt layer from bottom to top;

a water storage tank, a water inlet pipe and a first drainage pipe are arranged inside the base layer, one end of the water inlet pipe penetrates through the first waterproof layer and is communicated with the permeable layer, and the other end of the water inlet pipe is communicated with the water storage tank, so that accumulated water on the asphalt layer sequentially passes through the filter layer, the permeable layer and the water inlet pipe and enters the water storage tank;

the water inlet of first drain pipe with the water storage box intercommunication, the delivery port of first drain pipe by one side of basic unit stretches out extremely outside the basic unit, and is located the top of escape canal, so that water in the water storage box warp first drain pipe discharges extremely in the escape canal.

Optionally, still be provided with the second drain pipe in the permeable stratum, the water inlet of second drain pipe with the permeable stratum intercommunication, the delivery port of second drain pipe by one side of permeable stratum stretches out to outside the permeable stratum, and be located the top in escape canal, so that water warp in the permeable stratum the second drain pipe discharges extremely in the escape canal.

Optionally, the permeable bed includes the arc permeable structure of undercut, first waterproof layer with the shape phase-match of permeable bed, the inlet tube sets up the bottom of arc permeable structure.

Optionally, the permeable layer further comprises an inclined permeable structure located on at least one side of the arc-shaped permeable structure, and the water inlet of the second water drainage pipe is communicated with the inclined permeable structure.

Optionally, the both sides on pitch layer are provided with the third water layer, first drain pipe runs through the third water layer.

Optionally, the top end of the third waterproof layer and the top end of the asphalt layer are located on the same plane.

Optionally, the bottom of the third water layer is attached to the inner wall of the drainage ditch.

Optionally, a second waterproof layer is arranged between the concrete layer and the base layer.

Optionally, the first waterproof layer, the second waterproof layer and the third waterproof layer are impermeable geotextile layers.

Optionally, the filter layer is a filtration geotextile layer.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the roadbed structure convenient for discharging the accumulated water in the roadbed is characterized in that the roadbed, the concrete layer, the base layer and the asphalt layer are sequentially arranged from bottom to top, at least one side of the roadbed is provided with a drainage ditch, a first waterproof layer, a permeable layer and a filter layer are sequentially arranged between the base layer and the asphalt layer from bottom to top, and meanwhile, the base layer is internally provided with the water storage tank, the water inlet pipe and the first drainage pipe, so that the accumulated water on the asphalt layer enters the permeable layer through the filter layer, and the first waterproof layer is arranged below the permeable layer, therefore, the water on the permeable layer can directly enter the water storage tank through the water inlet pipe and then is discharged into the drainage ditch from the first drainage pipe communicated with the water storage tank, thereby realizing the timely discharge of the water in the roadbed structure, further ensuring the stability of the roadbed structure, preventing the roadbed from collapsing and prolonging the service life of the roadbed structure, the normal travel of people is satisfied.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a roadbed structure for facilitating the drainage of water accumulated in the roadbed according to an embodiment of the disclosure;

fig. 2 is a sectional view of a subgrade structure according to an embodiment of the present disclosure, which facilitates the drainage of water accumulated inside the subgrade.

Wherein, 1, roadbed; 2. a drainage ditch; 3. a concrete layer; 4. a first waterproof layer; 5. a base layer; 6. a second waterproof layer; 7. a water permeable layer; 8. a filter layer; 9. an asphalt layer; 10. a third water layer; 11. a water storage tank; 12. a water inlet pipe; 13. a first drain pipe; 14. and a second water discharge pipe.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Referring to fig. 1 to 2, a roadbed structure for conveniently discharging water accumulated in a roadbed according to the present embodiment includes a roadbed 1, a concrete layer 3, a base layer 5 and an asphalt layer 9, which are sequentially arranged from bottom to top; at least one side of the roadbed 1 is provided with a drainage ditch 2, and a first waterproof layer 4, a permeable layer 7 and a filter layer 8 are sequentially arranged between the base layer 5 and the asphalt layer 9 from bottom to top.

Specifically, drainage ditches 2 may be provided on both sides of the roadbed 1, respectively, to improve drainage efficiency of the drainage ditches. Of course, the drainage ditch 2 may be provided only on one side of the roadbed 1.

A water storage tank 11, a water inlet pipe 12 and a first drainage pipe 13 are arranged inside the base layer 5, one end of the water inlet pipe 12 penetrates through the first waterproof layer 4 and is communicated with the permeable layer 7, and the other end of the water inlet pipe 12 is communicated with the water storage tank 11, so that accumulated water on the asphalt layer 9 sequentially passes through the filter layer 8, the permeable layer 7 and the water inlet pipe 12 and enters the water storage tank 11;

the water inlet of the first drainage pipe 13 is communicated with the water storage tank 11, and the water outlet of the first drainage pipe 13 extends out of the base layer 5 from one side of the base layer 5 and is positioned above the drainage ditch 2, so that water in the water storage tank 11 is discharged into the drainage ditch 2 through the first drainage pipe 13.

Wherein, the filter layer 8 is used for filtering some granular soil, prevents the loss of granular soil, avoids granular soil to follow the downward flow of water and blocks up first drain pipe 13.

Referring to fig. 2, when the drainage ditches 2 are respectively formed at both sides of the roadbed 1, two first drainage pipes 13 are provided, and the two first drainage pipes 13 are respectively arranged at both sides of the water storage tank 11 and are in one-to-one correspondence with the drainage ditches 2, so that the drainage speed can be further increased.

The setting of first waterproof layer 4 can avoid water to 5 infiltration of basic unit, through at the inside water storage box 11 that sets up of basic unit 5, inlet tube 12 and first drain pipe 13 to with the water inlet and the water storage box 11 intercommunication of first drain pipe 13, the delivery port of first drain pipe 13 is stretched out outside basic unit 5 by one side of basic unit 5, the ponding in the permeable bed 7 of being convenient for flows into to the water storage box 11 in, and by first drain pipe 13 discharge in the escape canal 2. Wherein, stretch out the delivery port of first drain pipe 13 outside basic unit 5 by one side of basic unit 5, the delivery port of first drain pipe 13 is located the top of escape canal 2 simultaneously, can effectively avoid permeating into roadbed 1 inside from the ponding of first drain pipe 13 discharge to escape canal 2, has realized the inside drying of roadbed 1.

The roadbed 1 structure convenient for discharging the accumulated water in the roadbed 1 is characterized in that the roadbed 1, the concrete layer 3, the base layer 5 and the asphalt layer 9 are sequentially arranged from bottom to top, the drainage ditch 2 is arranged on at least one side of the roadbed 1, the first waterproof layer 4, the permeable layer 7 and the filter layer 8 are sequentially arranged between the base layer 5 and the asphalt layer 9 from bottom to top, the water storage tank 11, the water inlet pipe 12 and the first drainage pipe 13 are arranged in the base layer 5, so that the accumulated water on the asphalt layer 9 enters the permeable layer 7 through the filter layer 8, and the first waterproof layer 4 is arranged below the permeable layer 7, so that the water in the permeable layer 7 can directly enter the water storage tank 11 through the water inlet pipe 12 and then is discharged into the drainage ditch 2 from the first drainage pipe 13 communicated with the water storage tank 11, thereby realizing the timely discharge of the water in the roadbed 1 structure and further ensuring the stability of the roadbed 1 structure, prevent that the road bed 1 from collapsing, prolonged the life of this road bed 1 structure, satisfied people's normal trip.

Referring to fig. 2, a second water drainage pipe 14 is further disposed in the water permeable layer 7, a water inlet of the second water drainage pipe 14 is communicated with the water permeable layer 7, and a water outlet of the second water drainage pipe 14 extends out of the water permeable layer 7 from one side of the water permeable layer 7 and is located above the drainage ditch 2, so that water in the water permeable layer 7 is drained to the drainage ditch 2 through the second water drainage pipe 14.

During the concrete implementation, the second drain pipe 14 of setting in permeable bed 7 unites first drain pipe 13's use, discharges the ponding reposition of redundant personnel in permeable bed 7 to ensure that ponding furthest discharges, avoid the overstock of water in permeable bed 7 and destroy road bed 1's stability. Meanwhile, the water outlet of the second water discharge pipe 14 extends out of the permeable layer 7 from one side of the permeable layer 7 and is located above the drainage ditch 2, so that water discharged into the drainage ditch 2 through the second water discharge pipe 14 can be prevented from permeating into the roadbed 1 structure.

Specifically, permeable bed 7 includes the arc permeable structure of undercut, and first waterproof layer 4 and permeable bed 7's shape phase-match, inlet tube 12 set up in the bottom of the arc permeable structure.

In this embodiment, the water permeable layer 7 includes a downward-concave arc-shaped water permeable structure, so that the accumulated water in the water permeable layer 7 is efficiently drained, and the accumulated water flows downward along the side line of the arc-shaped water permeable structure; the shape phase-match that sets up first waterproof layer 4 and permeable bed 7, that is to say make the zero clearance laminating between first waterproof layer 4 and the permeable bed 7, avoided the exosmosis of ponding.

Simultaneously be equipped with inlet tube 12 in the bottom of the structure that permeates water of arc, the ponding in the permeable bed 7 of being convenient for gets into water storage box 11 through inlet tube 12 completely under the drainage of the structure that permeates water of arc, can understand, when other positions except that the structure bottom that permeates water of arc set up inlet tube 12, have partly water to pile up and be difficult to the discharge entering inlet tube 12 in the bottom of the structure that permeates water of arc, seriously influenced the discharge effect of ponding in the permeable bed 7, and then endangered the stability of whole roadbed 1 structure.

Illustratively, referring to fig. 2, the shape of the water permeable layer 7 may be any other suitable structure such as a square, as long as it can effectively drain the accumulated water in the water permeable layer 7. It should be noted that, on the premise of not affecting the efficiency of the permeable structure entering the water storage tank 11 through the water inlet pipe 12 and ensuring that no accumulated water remains in the permeable layer 7, the position of the permeable structure corresponding to the water inlet pipe 12 can be changed correspondingly.

Wherein, permeable stratum 7 still includes the slope structure of permeating water that is located the at least one side of arc structure of permeating water, and the water inlet of second drain pipe 14 is with slope structure intercommunication of permeating water.

Referring to fig. 2, when the two sides of the roadbed 1 are respectively provided with the drainage ditches 2, the two sides of the arc-shaped water permeable structure are correspondingly provided with the inclined water permeable structures respectively, and are communicated with the water inlets of the second drainage pipes 14 and the inclined water permeable structures, and the second drainage pipes 14 are in one-to-one correspondence with the drainage ditches 2, so that the drainage speed of the roadbed 1 structure is further improved.

During concrete implementation, the two sides of the asphalt layer 9 are provided with a third waterproof layer 10, and the first drainage pipe 13 penetrates through the third waterproof layer 10.

The third water layer 10 that runs through the setting of first drain pipe 13 can avoid permeating this 1 structure of road bed's inside at the in-process that flows downwards from the water that flows of drain pipe, and can prevent that water from 2 to this 1 structure of road bed's inside infiltration of escape canal, and then influence the stability of 1 structure of road bed.

In some embodiments, the top end of the third water-proofing layer 10 is on the same plane as the top end of the asphalt layer 9. So set up, guaranteed the planarization on road surface, also made things convenient for people to go on a journey.

In some concrete embodiments, the bottom of third prevention water layer 10 is laminated mutually with the inner wall of escape canal 2 to make third prevention water layer 10 carry out the full range cover to this road bed 1 structure, can prevent that water from permeating to the inside of this road bed 1 structure and water from escape canal 2 to this road bed 1 structure infiltration at the in-process that flows down, further realized the timely discharge of the inside water of this road bed 1 structure, thereby prevented the collapse of road bed 1 structure, prolonged the life of this road bed 1 structure.

Wherein, a second waterproof layer 6 is arranged between the concrete layer 3 and the base layer 5. The second waterproof layer 6 can prevent water inside the water storage tank 11 from permeating downwards to affect the stability of the roadbed 1 structure.

Specifically, the first waterproof layer 4, the second waterproof layer 6 and the third waterproof layer 10 are impermeable geotextile layers. The filter layer 8 may be a filter geotextile layer.

In the embodiment, the first waterproof layer 4, the second waterproof layer 6 and the third waterproof layer 10 are impermeable geotextile layers, are protective materials and filtering and draining materials of impermeable films, and have good functions of isolation, drainage, corrosion resistance, ageing resistance and the like. Can effectively avoid the seepage of the inside ponding of road bed 1 through set up the waterproof layer in road bed 1 structure, specifically, first waterproof layer 4 can avoid water infiltration downwards and make water enter into the inside of first drain pipe 13 and second drain pipe 14, second waterproof layer 6 can prevent to be located the inside infiltration of water storage box 11, and third waterproof layer 10 can prevent that water from permeating this road bed 1 structure's inside at the in-process that flows downwards, also can prevent simultaneously that water from the inside infiltration of escape canal 2 to this road bed 1 structure.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A roadbed structure convenient for discharging accumulated water in a roadbed is characterized by comprising the roadbed (1), a concrete layer (3), a base layer (5) and an asphalt layer (9) which are sequentially arranged from bottom to top;

at least one side of the roadbed (1) is provided with a drainage ditch (2), and a first waterproof layer (4), a permeable layer (7) and a filter layer (8) are sequentially arranged between the base layer (5) and the asphalt layer (9) from bottom to top;

a water storage tank (11), a water inlet pipe (12) and a first drainage pipe (13) are arranged inside the base layer (5), one end of the water inlet pipe (12) penetrates through the first waterproof layer (4) and is communicated with the water permeable layer (7), and the other end of the water inlet pipe (12) is communicated with the water storage tank (11), so that accumulated water on the asphalt layer (9) sequentially passes through the filter layer (8), the water permeable layer (7) and the water inlet pipe (12) and enters the water storage tank (11);

the water inlet of first drain pipe (13) with water storage tank (11) intercommunication, the delivery port of first drain pipe (13) by one side of basic unit (5) stretch out to outside basic unit (5), and be located the top of escape canal (2), so that water in water storage tank (11) is through first drain pipe (13) discharge extremely in escape canal (2).

2. A roadbed structure convenient for draining water accumulated in a roadbed according to claim 1, wherein a second drain pipe (14) is further arranged in the permeable layer (7), a water inlet of the second drain pipe (14) is communicated with the permeable layer (7), a water outlet of the second drain pipe (14) extends out of the permeable layer (7) from one side of the permeable layer (7) and is positioned above the drainage ditch (2), so that the water in the permeable layer (7) is discharged into the drainage ditch (2) through the second drain pipe (14).

3. A roadbed structure convenient for draining water accumulated in a roadbed according to claim 2, wherein the water permeable layer (7) comprises an arc-shaped water permeable structure which is concave downwards, the shape of the water permeable layer (7) is matched with that of the first waterproof layer (4), and the water inlet pipe (12) is arranged at the bottom of the arc-shaped water permeable structure.

4. A substructure convenient to discharge standing water inside a subgrade according to claim 3, said permeable layer (7) further comprising an inclined permeable structure located on at least one side of said arc-shaped permeable structure, the water inlet of said second drainage pipe (14) communicating with said inclined permeable structure.

5. A roadbed structure convenient for draining accumulated water in a roadbed according to claim 1, wherein both sides of the asphalt layer (9) are provided with a third water prevention layer (10), and the first drainage pipe (13) penetrates through the third water prevention layer (10).

6. A substructure facilitating the drainage of water standing inside a subgrade according to claim 5, characterized in that the top end of said third water-proofing layer (10) is on the same plane as the top end of said asphalt layer (9).

7. The roadbed structure convenient for discharging accumulated water in the roadbed according to claim 5, wherein the bottom end of the third water prevention layer (10) is attached to the inner wall of the drainage ditch (2).

8. A roadbed structure facilitating the discharge of water accumulated inside the roadbed according to claim 5, characterized in that a second waterproof layer (6) is arranged between the concrete layer (3) and the base layer (5).

9. The roadbed structure convenient for discharging water accumulated in the roadbed according to claim 8, wherein the first waterproof layer (4), the second waterproof layer (6) and the third waterproof layer (10) are impermeable geotextile layers.

10. The roadbed structure convenient for draining water accumulated in the roadbed according to claim 1, wherein the filter layer (8) is a filter geotextile layer.