CN210857182U

CN210857182U - Roadbed drainage structure

Info

Publication number: CN210857182U
Application number: CN201921690646.1U
Authority: CN
Inventors: 王铭; 余茂辉; 汪永仕
Original assignee: Hefei Zhicheng Engineering Design Consulting Co ltd
Current assignee: Hefei Zhicheng Engineering Design Consulting Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-26
Anticipated expiration: 2029-10-10

Abstract

The utility model relates to the technical field of roadbed drainage, and discloses a roadbed drainage structure, which comprises a catch basin and a side ditch, wherein one side of a roadbed slope bottom is a pavement layer, and one side of the side ditch, which is far away from the catch basin, is provided with a curb block; the road shoulder stop block comprises a water seepage plate and a water baffle plate which is vertically arranged on the upper end surface of the water seepage plate and is close to one side of the water seepage plate; the insides of the water seepage plate and the water baffle are both hollow structures and are communicated with each other; a plurality of first water seepage grooves are formed in the upper end face of the water seepage plate at intervals; the lower end surface of the water seepage plate inclines from bottom to top in the direction away from the side ditch; the end surface of the water seepage plate close to the side ditch is provided with a water drainage groove communicated with the side ditch; the drainage channels are arranged at intervals along the length direction of the road shoulder stop block and are close to the upper end surface of the side ditch; the upper end surface of the water seepage plate is flush with the upper end surface of the side ditch, and the lower end surface of the water seepage plate is embedded at the bottom of the pavement layer. The utility model has the advantages of it is following and effect: the water drainage structure has a good water drainage structure, so that the roadbed structure is stable, and water drainage is rapid.

Description

Roadbed drainage structure

Technical Field

The utility model relates to a road bed drainage technology field, in particular to road bed drainage structure.

Background

The roadbed is a foundation of a track or a pavement layer and is an earth structure formed by excavation or filling. The roadbed mainly has the functions of providing necessary conditions for laying of the track or the pavement layer and train or train running operation, bearing static loads and dynamic loads of the track and rolling stock or the pavement layer and traffic loads, and transmitting and diffusing the loads to the deep part of the foundation. On the vertical section, the roadbed must ensure the required height of the line, and on the plane, the roadbed, the bridge and the tunnel are connected to form a complete through line. In civil engineering, roadbeds play an important role in terms of construction quantity, pavement stratification and investment. Generally, only set up the side ditch in the position of road bed slope body bottom, discharge ponding, but ponding flows down along the domatic of road bed from the top of the slope of road bed, very easily causes the soil loss of being afraid of the slope body, in addition, also can the overflow when road surface layer ponding is great erodees the road bed side slope for the road bed structure is unstable, causes road bed soil to run off or the collapse easily.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a roadbed drainage structure, it has good drainage structures for roadbed structure is stable, and the drainage is rapid.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a roadbed drainage structure comprises a catch basin arranged at the top of a roadbed slope and a side ditch arranged at the bottom of the roadbed and close to a road shoulder, wherein a road surface layer is arranged on one side of the roadbed slope bottom, and a road shoulder stop block is arranged on one side of the side ditch away from the catch basin; the road shoulder stop block comprises a water seepage plate and a water baffle plate which is vertically arranged on the upper end surface of the water seepage plate and is close to one side of the water seepage plate; the inner parts of the water seepage plate and the water baffle are both hollow structures and are communicated with each other; a plurality of first water seepage grooves are formed in the upper end face of the water seepage plate at intervals; the first water seepage groove is arranged along the length direction of the road shoulder stop block; the lower end surface of the water seepage plate is inclined from bottom to top in the direction away from the side ditch; the end surface of the water seepage plate close to the side ditch is provided with a water drainage groove communicated with the side ditch; the drainage grooves are arranged at intervals along the length direction of the road shoulder stop block and are close to the upper end surface of the side ditch; the upper end face of the water seepage plate is flush with the upper end face of the side ditch, and the lower end face of the water seepage plate is buried at the bottom of the pavement layer.

By adopting the technical scheme, the road shoulder stop block is arranged, so that the problem that the roadbed slides to the road surface layer due to accumulated water is prevented, and the traffic is prevented from being hindered; the drainage structure not only serves as a part of the drainage structure, but also can prevent vehicles from running into a drainage ditch, and is beneficial to improving the traffic safety of a road surface layer; prevent that the road surface layer ponding from too much scouring the bottom of the road bed slope body, be favorable to improving roadbed structure's stability. The bottom of the water seepage plate is provided with an inclined state, so that accumulated water entering the water seepage plate is drained to the side ditch.

The utility model is further arranged that the road shoulder block is fixed on the road surface layer through a fixing piece; the fixing piece comprises a fixing column which is arranged on the lower end face of the road shoulder stop block and extends in the direction away from the lower end face of the road shoulder stop block, and an inserting part arranged at the lower end of the fixing column; the insertion portion is tapered.

Through adopting above-mentioned technical scheme, set up the mounting for the installation of curb dog is more stable, through setting up the portion of inserting, makes the fixed column be convenient for be fixed in the bottom of pavement layer soil.

The utility model is further arranged that a section of buffer slope body is arranged between the catch drain and the side drain; the buffering slope body comprises a first slope body, a second slope body and a first slope body which are sequentially arranged along the downhill direction of the roadbed; the slopes of the first slope body, the second slope body and the third slope body are increased in sequence; a platform is arranged between the second slope body and the third slope body; and a drainage ditch is arranged on the platform.

Through adopting above-mentioned technical scheme, set up the buffering slope body, the ponding rivers of avoiding the slope body top flow down along the slope body, cause the soil on roadbed surface loose, set the slope body of different slopes with the road bed whole for the difficult landslide phenomenon that takes place of road bed makes road bed structural stability higher.

The utility model is further arranged that a vegetable layer is paved on the third slope body; the vegetation layer comprises a protective net paved on the soil surface of a third slope body and a planting layer on which vegetation seeds are sown; a plurality of anchor rods are arranged on the end face, close to the third slope body, of the protective net; the anchor rod is inserted into the third slope body.

Through adopting above-mentioned technical scheme, because the slope of the third slope body is great, cause the landslide phenomenon easily, set up the vegetable layer for the root system of vegetation has bigger grip to inside soil, makes soil structure tamp more, improves the guard action to the slope body, effectively protects the slope body, makes roadbed structure more stable. The protective net is fixed on the soil through the anchor rod, so that the protective effect on the surface of the soil is better.

The utility model is further arranged that one side of the road surface layer close to the road shoulder block is inclined from bottom to top to one side away from the road shoulder block; a first anti-seepage geotextile is laid in the pavement layer; the bottom of one side of the water seepage plate, which is away from the side ditch, is flush with the bottom of the first anti-seepage geotextile; a first gravel layer is laid on one side of the road surface layer close to the road shoulder stop block; the first gravel layer is positioned above the first impermeable geotextile; and a second water seepage groove communicated with the inside of the water seepage plate is formed in one side of the water seepage plate, which is away from the side ditch.

Through adopting above-mentioned technical scheme, set the one side that is close to the curb dog with the surface course to the slope, the ponding of being convenient for is faster to collect the first rubble layer that sets up, and the ponding of surface course can be along first rubble layer laminar infiltration inboard to discharge in introducing the side ditch, first prevention of seepage geotechnological cloth has been favorable to preventing to further permeate the deeper of surface course from the ponding of surface course infiltration, makes drainage structures more unobstructed.

The utility model is further arranged that a filter screen is arranged at the second water seepage groove; a frame is arranged on the periphery of the filter screen; the frame is fixed on the water seepage plate.

Through adopting above-mentioned technical scheme, set up the filter screen, be favorable to preventing the soil loss of pavement layer, in addition, prevent that fine grain soil from leading to the fact the drainage to block up in entering the infiltration board.

The utility model is further arranged that one side of the intercepting ditch close to the slope top of the roadbed is paved with a second anti-seepage geotextile; and a second crushed stone layer is laid in the intercepting ditch.

By adopting the technical scheme, the second anti-seepage geotextile is arranged, so that accumulated water is not easy to permeate into the roadbed, the soil is prevented from being loosened, and the accumulated water can flow into the intercepting ditch along the surface layer of the soil and be discharged; set up the second rubble layer for the soil of road bed slope top is difficult for running off to the catch basin in, and ponding is convenient for discharge from the hole on rubble layer.

The utility model discloses further set up to, one side that the catch basin is close to the road bed top is less than one side that the catch basin deviates from the road bed top.

Through adopting above-mentioned technical scheme, set the height of intercepting ditch both sides to one low one high, the discharge of the ponding of being convenient for also be difficult for when ponding is too much on flowing into the following slope body, further improved the holistic stability ability of roadbed structure, make the difficult landslide that takes place of road bed, safe and reliable.

To sum up, the utility model discloses a beneficial technological effect does:

the road shoulder stop block is arranged, so that the phenomenon that the roadbed slides to the roadbed surface due to water accumulation is prevented, the traffic is prevented from being hindered, the road shoulder stop block is used as a part of a drainage structure, vehicles can be prevented from running into a drainage ditch, the traffic safety of the roadbed surface layer is improved, the bottom of a roadbed slope body is prevented from being excessively flushed by the water accumulation of the roadbed surface, and the stability of the roadbed structure is improved;

the slope of the third slope body is larger, so that landslide is easy to occur, and the vegetation layer is arranged, so that the root system of the vegetation has higher holding power on the internal soil, the soil structure is tamped more, the protection effect on the slope body is improved, the slope body is effectively protected, and the roadbed structure is more stable;

set up the filter screen, be favorable to preventing the soil loss of pavement layer, in addition, prevent that fine grain soil from leading to the fact the drainage to block up in entering the infiltration board.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic structural diagram of a road shoulder block of an embodiment;

FIG. 3 is a schematic view of a filter screen mounting structure of the embodiment;

fig. 4 is an enlarged schematic view at a in fig. 1.

Reference numerals: 1. a roadbed; 2. intercepting a ditch; 21. a second impermeable geotextile; 22. a second crushed stone layer; 3. side ditches; 4. a pavement layer; 41. a first impermeable geotextile; 42. a first crushed stone layer; 5. a curb block; 51. a water seepage plate; 511. a first water seepage tank; 512. a water discharge tank; 513. a filter screen; 514. a second water seepage tank; 515. a frame; 52. a water baffle; 53. a fixing member; 531. fixing a column; 532. an insertion portion; 6. a buffer slope body; 61. a first ramp body; 62. a second slope body; 63. a third slope body; 64. a platform; 641. a drainage ditch; 7. a vegetable layer; 71. a protective net; 72. planting a layer; 73. an anchor rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a roadbed drainage structure comprises a cut-off ditch 2 excavated at the top of a roadbed 1 and a side ditch 3 excavated at the bottom of the roadbed 1 and close to a road shoulder. One side of the slope bottom of the roadbed 1 is provided with a road surface layer 4.

The side of the intercepting drain 2 close to the top of the roadbed 1 is lower than the side of the intercepting drain 2 away from the top of the roadbed 1. A second seepage-proof geotextile 21 is laid at one side of the lower part of the intercepting ditch 2 and close to the slope top of the roadbed 1, and a second gravel layer 22 is laid in the intercepting ditch 2. Preferably, the second impermeable geotextile 21 is arranged to extend from the position of the top of the roadbed 1 to the position of the bottom of the roadbed 1.

A section of buffer slope body 6 is arranged between the intercepting ditch 2 and the side ditch 3. The buffering slope body 6 comprises a first slope body 61, a second slope body 62 and a third slope body 63 which are sequentially arranged along the downhill direction of the roadbed 1. The first slope body 61, the second slope body 62 and the third slope body 63 have gradually increasing slopes. A platform 64 is stacked between the second slope body 62 and the third slope body 63, and a drainage ditch 641 is dug on the platform 64.

A vegetation layer 7 is laid on the third slope body 63. The vegetation layer 7 includes a protective net 71 laid on the soil surface of the third slope body 63 and a planting layer 72 on which vegetation seeds are sown. A plurality of anchor rods 73 are fixed on the end surface of the protection net 71 close to the third slope body 63, and the anchor rods 73 are inserted into the third slope body 63.

And a shoulder block 5 is arranged on one side of the side ditch 3 departing from the intercepting ditch 2.

As shown in fig. 2, the shoulder block 5 includes a water penetration plate 51, and a water guard plate 52 vertically installed on an upper end surface of the water penetration plate 51 at a side close to the water penetration plate 51. The water seepage plate 51 and the water baffle plate 52 are hollow structures and communicated with each other. A plurality of first water seepage grooves 511 are formed in the upper end face of the water seepage plate 51 at intervals, the first water seepage grooves 511 are arranged along the length direction of the road shoulder block 5, and the lower end face of the water seepage plate 51 inclines from bottom to top in the direction away from the side ditch 3. The terminal surface that infiltration board 51 is close to gutter 3 offers the water drainage tank 512 with gutter 3 intercommunication, and water drainage tank 512 sets up and is close to the up end of gutter 3 along the length direction interval of road shoulder dog 5, and the up end of infiltration board 51 and the up end parallel and level of gutter 3, and the lower terminal surface of infiltration board 51 is buried underground in the bottom of pavement layer 4. Referring to fig. 3, a second water-permeating groove 514 communicated with the interior of the water-permeating plate 51 is formed on one side of the water-permeating plate 51 away from the side ditch 3. A filter screen 513 is installed at the second water seepage groove 514, a frame 515 is fixed on the periphery of the filter screen 513, and the frame 515 is fixed on the water seepage plate 51 through bolts.

As shown in fig. 1, the shoulder block 5 is fixed to the pavement layer 4 by a fixing member 53. The fixing member 53 includes a fixing column 531 fixedly installed on the lower end surface of the shoulder block 5 and extending in a direction away from the lower end surface of the shoulder block, and an insertion portion 532 formed at the lower end of the fixing column 531, and the lower end of the insertion portion 532 is in a tapered shape.

One side of the road surface layer 4 close to the road shoulder block 5 is obliquely arranged from bottom to top to the side away from the road shoulder block 5. The first impermeable geotextile 41 is paved inside the pavement layer 4, and the bottom of one side of the water seepage plate 51, which is far away from the side ditch 3, is flush with the bottom of the first impermeable geotextile 41. Referring to fig. 4, a first gravel layer 42 is laid on one side of the pavement layer 4 close to the shoulder block 5, and the first gravel layer 42 is located above the first impermeable geotextile 41.

When the embodiment is used, when a slope body of the roadbed 1 is piled up, firstly, a ditch of the side ditch 3 is excavated at the bottom of the roadbed 1 and close to a road shoulder, then, the drainage ditch 641 is excavated at the middle part of the slope surface of the roadbed 1, and then, a ditch of the intercepting ditch 2 is excavated at the position of the roadbed 1 close to the top part of the roadbed. Before the roadbed 1 is piled up, a second impermeable geotextile 21 is laid in the soil layer of the roadbed 1. And then the roadbed 1 is integrally piled into a plurality of sections of slopes with different slopes. The anchor rods 73 are inserted into the third slope body 63, the protective net 71 is fixed on the soil surface of the third slope body 63, and vegetation seeds are sown on the planting layer 72. And mounting the road shoulder block 5, so that the fixing piece 53 is firmly inserted into the soil of the road surface layer 4. First anti-seepage geotextile 41 is paved in the road surface layer 4, a first gravel layer 42 is paved on one side of the road surface layer 4 close to the road shoulder block 5, soil is continuously paved on the first anti-seepage geotextile 41 to form a complete road surface layer 4 matrix, and one side of the road surface layer 4 close to the road shoulder block 5 is obliquely arranged from bottom to top away from one side of the road shoulder block 5.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a road bed drainage structures, is including intercepting ditch (2) of locating road bed (1) top of slope, locating road bed (1) bottom and be close to side ditch (3) of curb, one side at the bottom of road bed (1) slope is pavement layer (4), characterized by: a shoulder stop block (5) is arranged on one side of the side ditch (3) departing from the intercepting ditch (2); the road shoulder block (5) comprises a water seepage plate (51) and a water baffle plate (52) which is vertically arranged on the upper end surface of the water seepage plate (51) and is close to one side of the water seepage plate (51); the insides of the water seepage plate (51) and the water baffle plate (52) are both hollow structures and are communicated with each other; a plurality of first water seepage grooves (511) are formed in the upper end face of the water seepage plate (51) at intervals; the first water seepage groove (511) is arranged along the length direction of the road shoulder stop block (5); the lower end surface of the water seepage plate (51) inclines to the direction back to the side ditch (3) from bottom to top; the end surface of the water seepage plate (51) close to the side ditch (3) is provided with a drainage groove (512) communicated with the side ditch (3); the drainage grooves (512) are arranged at intervals along the length direction of the road shoulder stop block (5) and are close to the upper end surface of the side ditch (3); the upper end face of the water seepage plate (51) is flush with the upper end face of the side ditch (3), and the lower end face of the water seepage plate (51) is buried at the bottom of the pavement layer (4).

2. A roadbed drainage structure according to claim 1, wherein: the road shoulder block (5) is fixed on the road surface layer (4) through a fixing piece (53); the fixing piece (53) comprises a fixing column (531) which is arranged on the lower end face of the road shoulder stop block (5) and extends in the direction away from the lower end face of the road shoulder, and an inserting part (532) which is arranged at the lower end of the fixing column (531); the insertion portion (532) has a tapered shape.

3. A roadbed drainage structure according to claim 1, wherein: a section of buffer slope body (6) is arranged between the intercepting ditch (2) and the side ditch (3); the buffer slope body (6) comprises a first slope body (61), a second slope body (62) and a third slope body (63) which are sequentially arranged along the downhill direction of the roadbed (1); the gradients of the first slope body (61), the second slope body (62) and the third slope body (63) are increased in sequence; a platform (64) is arranged between the second slope body (62) and the third slope body (63); and a drainage ditch (641) is arranged on the platform (64).

4. A roadbed drainage structure according to claim 3, wherein: a vegetation layer (7) is paved on the third slope body (63); the vegetation layer (7) comprises a protective net (71) paved on the soil surface of the third slope body (63) and a planting layer (72) sowed with vegetation seeds; a plurality of anchor rods (73) are arranged on the end face, close to the third slope body (63), of the protective net (71); the anchor rod (73) is inserted into the third slope body (63).

5. A roadbed drainage structure according to claim 1, wherein: one side of the pavement layer (4) close to the road shoulder stop block (5) is obliquely arranged from bottom to top towards one side departing from the road shoulder stop block (5); a first impermeable geotextile (41) is laid in the pavement layer (4); the bottom of one side of the water seepage plate (51) departing from the side ditch (3) is flush with the bottom of the first impermeable geotextile (41); a first gravel layer (42) is laid on one side, close to the road shoulder stop block (5), of the road surface layer (4); the first gravel layer (42) is positioned above the first impermeable geotextile (41); one side of the water seepage plate (51) departing from the side ditch (3) is provided with a second water seepage groove (514) communicated with the inside of the water seepage plate (51).

6. A roadbed drainage structure according to claim 5, wherein: a filter screen (513) is arranged at the second water seepage groove (514); a frame (515) is arranged on the periphery of the filter screen (513); the frame (515) is fixed on the water seepage plate (51).

7. A roadbed drainage structure according to claim 1, wherein: a second seepage-proof geotextile (21) is laid on one side of the intercepting ditch (2) close to the slope top of the roadbed (1); and a second crushed stone layer (22) is laid in the intercepting ditch (2).

8. A roadbed drainage structure according to claim 1, wherein: one side of the intercepting ditch (2) close to the top of the roadbed (1) is lower than one side of the intercepting ditch (2) departing from the top of the roadbed (1).