CN217298492U

CN217298492U - Shallow roadbed structure that digs of highway

Info

Publication number: CN217298492U
Application number: CN202220415659.3U
Authority: CN
Inventors: 江强; 杨伟; 邓伟; 冉辉
Original assignee: Chongqing Traffic Engineering Supervision Consulting Co ltd
Current assignee: Chongqing Traffic Engineering Supervision Consulting Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-08-26
Anticipated expiration: 2032-02-28

Abstract

The utility model belongs to the technical field of roadbed structure and specifically relates to a shallow roadbed structure that digs of highway is related to, and it includes the roadbed main part, the roadbed main part includes subbase, basic unit and surface course, roadbed main part bottom is equipped with lays the back up coat that forms by the stone sediment of digging a mountain, the packing layer has still been laid to the back up coat bottom, the side ditch that the upper shed set up is seted up to roadbed main part side, the length direction of side ditch edge roadbed main part extends, the opening lid of side ditch has closed protective cover board, just a plurality of holes of permeating water have been seted up to protective cover board. The method and the device can reduce the possibility of collapse of the roadbed main body and prolong the service life of the highway.

Description

Shallow roadbed structure that digs of highway

Technical Field

The application relates to the field of roadbed structures, in particular to a shallow excavation roadbed structure of a highway.

Background

When the expressway is constructed, shallow excavation operation is carried out on part of road sections, and then backfilling is carried out. After making this shallow highway section construction of digging, roadbed structure includes the road bed main part, and the road bed main part includes subbase, basic unit and surface course, and the three sets gradually from supreme down.

In view of the above-mentioned related art, the inventor found that when the highway is used, the strength of the soil layer or rock stratum at the bottom of part of the roadbed main body is low and the stability is poor. When the anti-collapse roadbed is used, the soil layer or the rock stratum at the bottom of the roadbed main body is easy to deform, so that the roadbed main body collapses, the safety performance of the roadbed main body is reduced, and the service life of the expressway is relatively short.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility of collapse of a roadbed main body and prolong the service life of a highway, the application provides a shallow excavation roadbed structure of the highway.

The application provides a shallow roadbed structure that digs of highway adopts following technical scheme:

the utility model provides a shallow roadbed structure that digs of highway, includes the road bed main part, the road bed main part includes subbase, basic unit and surface course, road bed main part bottom is equipped with lays the back up coat that forms by the stone sediment of digging a mountain, the packing layer has still been laid to the back up coat bottom.

Through adopting above-mentioned technical scheme, under the combined action of back up coat and packing layer, can do the support to the road bed main part, reduce road bed main part bottom structure and take place the possibility that warp or cavity, and then reduce the road bed main part and take place the possibility of collapsing, increase highway's life.

Optionally, the side ditch that the upper shed set up is seted up to road bed main part side, the length direction of road bed main part is followed in the side ditch extends.

Through adopting above-mentioned technical scheme, the ponding on road surface can in time be followed side ditch and is located the discharge, reduces the possibility that ponding led to the fact the influence to going of vehicle.

Optionally, the opening lid of side ditch has closed protective cover plate, just protective cover plate has seted up a plurality of holes of permeating water.

Through adopting above-mentioned technical scheme, under the blockking of protection apron, can reduce the debris on road surface and get into the possibility in the gutter to reduce the possibility that the gutter takes place to block up.

Optionally, the protective cover plate includes a plurality of plate body units of concatenation mutually, and a plurality of holes of permeating water have all been seted up to each plate body unit, the protective cover plate sets up in side ditch opening border, and is a plurality of the plate body unit distributes along side ditch length direction.

Through adopting above-mentioned technical scheme, during the use, if the protection cover plate receives the vehicle and rolls or the influence of external force factor and take place the local fracture, can dismantle and change the plate body unit that the regional place of fracture this moment to it is comparatively convenient to make the maintenance and the installation of protection cover plate.

Optionally, be provided with a plurality of coupling assembling between two adjacent plate body units, coupling assembling includes connecting strip, two connecting bolt and two screw thread sleeve pipes, and inside two adjacent plate body units, two screw thread sleeve pipes were preset in the connecting strip respectively one-to-one threaded connection in two screw thread sleeve pipes.

Through adopting above-mentioned technical scheme, the back is laid to the plate body unit, passes the connecting strip and fastens the screw sleeve on two adjacent plate body units with two connecting bolt one-to-one respectively to it is fixed mutually with two adjacent plate body units, increases wholeness between a plurality of plate body units, stability when increasing the installation of plate body unit.

Optionally, the connecting strip is provided with a strip hole, and two connecting bolts in the same connecting assembly penetrate through the strip hole simultaneously.

Through adopting above-mentioned technical scheme, the rectangular hole that sets up can improve the convenience of connecting bolt when wearing to locate the connecting strip, reduces the influence that receives the installation accuracy.

Optionally, a plurality of supporting beams for supporting a plurality of plate body units are arranged at the opening of the side ditch, the supporting beams are positioned below the plate body units, and the supporting beams are clamped at the edge of the opening of the side ditch.

Through adopting above-mentioned technical scheme, a supporting beam can do the support to plate body unit, increases the ability that plate body unit bore load to reduce plate body unit and take place the possibility of breaking when receiving the vehicle and roll.

Optionally, the supporting beam is arranged below the splicing parts of the two adjacent plate body units, the supporting beam is fixedly connected with a plurality of bolts used for penetrating the plate body units, and the two adjacent plate body units are all provided with part of the bolts on the same supporting beam in a penetrating manner.

Through adopting above-mentioned technical scheme, under the effect of bolt for a supporting beam can be when doing the support to plate body unit, further improves the wholeness between two adjacent plate body units.

In summary, the present application includes at least one of the following beneficial technical effects:

the reinforcing layer and the packing layer are arranged, so that the roadbed main body can be supported, the possibility of deformation or cavities of the bottom structure of the roadbed main body is reduced, the possibility of collapse of the roadbed main body is further reduced, and the service life of the highway is prolonged;

the coupling assembling that sets up makes the plate body unit lay the back, can pass the connecting strip and fasten the threaded sleeve pipe on two adjacent plate body units respectively one-to-one with two connecting bolt to it is fixed mutually with two adjacent plate body units, stability when increasing the installation of plate body unit.

Drawings

FIG. 1 is a schematic illustration of a partial explosion structure of an embodiment of the present application;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is an enlarged schematic view of a portion B of fig. 1.

Description of reference numerals: 1. a roadbed main body; 11. an underlayer; 12. a base layer; 13. a surface layer; 2. a reinforcement layer; 21. a filler layer; 3. side ditches; 4. a protective cover plate; 41. a plate body unit; 5. a connecting assembly; 51. a connecting strip; 511. a strip hole; 52. a connecting bolt; 53. a threaded bushing; 6. a support beam; 61. and (4) a bolt.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses shallow excavation roadbed structure of highway. Referring to fig. 1 and 2, the shallow excavation roadbed structure of the highway comprises a roadbed main body 1, wherein the roadbed main body 1 comprises a subbase layer 11, a base layer 12 and a surface layer 13 which are sequentially arranged from bottom to top. The bottom of the roadbed main body 1 is provided with a reinforcing layer 2, and the reinforcing layer 2 is made of stone ballast. The bottom of the reinforcing layer 2 is also paved with a filler layer 21, and the filler layer 21 is made of silty clay, limestone or dolomite. In this embodiment, the thickness of the reinforcing layer 2 is set to 80cm, and the thickness of the filler layer 21 is set to 40 cm.

Therefore, under the combined action of the reinforcing layer 2 and the filler layer 21, the roadbed main body 1 can be supported, the possibility of deformation or cavities of the bottom structure of the roadbed main body 1 is reduced, the possibility of collapse of the roadbed main body 1 is further reduced, and the service life of the highway is prolonged.

Referring to fig. 1, in order to make the road surface have a better drainage performance, the two side edges of the roadbed main body 1 are both provided with side ditches 3, and the side ditches 3 extend along the length direction of the roadbed main body 1. The accumulated water on the road surface can be discharged from the side ditch 3 in time, and the possibility of influence of the accumulated water on the running of the vehicle is reduced.

Referring to fig. 1 and 2, in order to reduce the possibility that the gutter 3 is blocked due to the impurities on the road surface entering the gutter 3, a protective cover plate 4 with a plurality of water permeable holes is covered at the opening of the gutter 3. Therefore, under the blocking of the protective cover plate 4, the possibility that sundries on the road surface enter the side ditch 3 can be reduced.

Protective cover plate 4 includes a plurality of plate body units 41 of all offering a plurality of holes of permeating water, and 3 opening borders in the side ditch are set up to

plate body unit

41, and 3 length direction distributions in the side ditch are followed to a plurality of plate body units 41, and the mutual butt of two adjacent plate body units 41.

During the use, if the protection apron 4 receives the vehicle to roll or the influence of external force factor and takes place local fracture, can dismantle and change the plate body unit 41 that the regional place of fracture this moment to it is comparatively convenient to make the maintenance and the installation of protection apron 4.

Referring to fig. 3, when the vehicle travels onto the board unit 41 during use, the board unit 41 is susceptible to external force and may jump, which may cause the position of the board unit 41 to change, and then may threaten the safety of the vehicle traveling subsequently. At this moment, in order to increase the stability of the plate body units 41 after installation, a plurality of connecting assemblies 5 are arranged between two adjacent plate body units 41, and simultaneously, a supporting beam 6 is abutted to the lower part of the splicing part of the two adjacent plate body units 41, and the supporting beam 6 is clamped on the opening edge of the side ditch 3.

The connection assembly 5 comprises a connection bar 51, two connection bolts 52 and two threaded bushings 53. The two threaded sleeves 53 are respectively and correspondingly penetrated and fixedly connected to the two adjacent plate units 41, the connecting strip 51 is provided with a long hole 511 extending along the length direction of the connecting strip, and the two connecting bolts 52 penetrate through the long holes 511 and are respectively and correspondingly threaded to the two threaded sleeves 53.

Referring to fig. 3, a plurality of bolts 61 are fixedly connected to the supporting beam 6, and a part of the bolts 61 on the same supporting beam 6 is inserted through each of two adjacent plate units 41.

During installation, the plate body units 41 are firstly arranged at the opening edges of the side ditches 3, the inserted pins 61 can be sleeved on the plate body units 41, and then the connecting assembly 5 is fixed on two adjacent plate body units 41 at the same time. So that the connecting assembly 5 can fasten two adjacent plate body units 41, thereby increasing the integrity between the plurality of plate body units 41 and further improving the stability of each plate body unit 41. Meanwhile, the long holes 511 arranged on the connecting strips 51 can improve the convenience of the connecting bolts 52 when the connecting bolts 52 are arranged in the connecting strips 51 in a penetrating mode, and the influence of installation accuracy is reduced.

Moreover, the support beam 6 can support the plate body units 41 and further improve the integrity between two adjacent plate body units 41 by the bolt 61.

The implementation principle of the shallow excavation roadbed structure of the highway provided by the embodiment of the application is as follows: under the combined action of the reinforcing layer 2 and the filler layer 21, the roadbed main body 1 can be supported, the possibility of deformation or cavities of the bottom structure of the roadbed main body 1 is reduced, the possibility of collapse of the roadbed main body 1 is further reduced, and the service life of the highway is prolonged. Meanwhile, the accumulated water on the road surface can be discharged from the side ditch 3 in time, and the possibility of influence of the accumulated water on the running of the vehicle is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a shallow roadbed structure that digs of highway, includes roadbed main body (1), roadbed main body (1) includes subbase (11), basic unit (12) and surface course (13), its characterized in that: the roadbed is characterized in that a reinforcing layer (2) formed by paving the keshan slag is arranged at the bottom of the roadbed main body (1), and a packing layer (21) is further paved at the bottom of the reinforcing layer (2).

2. The shallow excavation roadbed structure of the expressway of claim 1, wherein: side ditch (3) that the upper shed set up are seted up to road bed main part (1) side, the length direction of road bed main part (1) is followed in side ditch (3) extends.

3. The shallow excavation roadbed structure of the expressway of claim 2, wherein: the opening of side ditch (3) is covered and is closed protective cover board (4), just a plurality of holes of permeating water have been seted up in protective cover board (4).

4. The shallow excavation roadbed structure of the expressway of claim 3, wherein: protection apron (4) include a plurality of plate body units (41) of splicing mutually, and a plurality of holes of permeating water have all been seted up in each plate body unit (41), protection apron (4) are set up in side ditch (3) opening border, and are a plurality of plate body unit (41) are along side ditch length direction distribution.

5. The shallow excavation roadbed structure of the expressway of claim 4, wherein: be provided with a plurality of coupling assembling (5) between two adjacent plate body units (41), coupling assembling (5) are including connecting strip (51), two connecting bolt (52) and two threaded sleeve pipe (53), and inside two adjacent plate body units (41) were preset in two threaded sleeve pipe (53) one-to-one respectively connecting bolt (52) passed connecting strip (51) one-to-one threaded connection respectively in two threaded sleeve pipe (53).

6. The shallow trench roadbed structure of the expressway of claim 5, wherein: the connecting strip (51) is provided with a long hole (511), and two connecting bolts (52) in the same connecting component (5) penetrate through the long hole (511) simultaneously.

7. The shallow excavation roadbed structure of the expressway of claim 4, wherein: a plurality of supporting beams (6) used for supporting a plurality of plate body units (41) are arranged at the opening of the side ditch (3), the supporting beams (6) are located below the plate body units (41), and the supporting beams (6) are clamped at the opening edge of the side ditch (3).

8. The shallow trench roadbed structure of the highway according to claim 7, wherein: the supporting beam (6) is arranged below the splicing parts of the two adjacent plate body units (41), the supporting beam (6) is fixedly connected with a plurality of bolts (61) used for penetrating the plate body units (41), and the two adjacent plate body units (41) are all provided with partial bolts (61) on the same supporting beam (6).