CN216891815U

CN216891815U - Roadbed structure with new and old roadbeds widened and spliced

Info

Publication number: CN216891815U
Application number: CN202220271114.XU
Authority: CN
Inventors: 杨道兵; 杨彩霞
Original assignee: Hefei Fangzhou Road And Bridge Engineering Co ltd
Current assignee: Hefei Fangzhou Road And Bridge Engineering Co ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-07-05
Anticipated expiration: 2032-02-10

Abstract

The utility model relates to a roadbed structure that concatenation is widened to new and old road bed, including old road basic body and new road basic body, the upper surface of old road basic body is from last to be equipped with first fluting and two second fluting in proper order, and is equipped with two L shaped plates between old road basic body and the new road basic body, two the L shaped plate is located two second fluting respectively, and the diapire and the lateral wall of two L shaped plates all are equipped with a plurality of mounting holes; through the arrangement of the two L-shaped plates, the fixing pins and the plurality of inclined rods, the side wall of the old road basic body can be well protected and supported, and the situations of damage and slag falling of the side wall of the old road basic body are reduced; through the setting on two back up layers, first concrete layer and second concrete layer, can play the effect of reinforcement, support to first concrete layer and second concrete layer, two second flutings and two L shaped plates can play certain supporting role to new way basic body, and then can reduce the settlement that new way basic body produced.

Description

Roadbed structure with new and old roadbeds widened and spliced

Technical Field

The utility model belongs to the technical field of the technique that the road bed was widened and specifically relates to a road bed structure of concatenation is widened to new and old road bed is related to.

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 pavement laying and train or train operation, bearing static load and dynamic load of track and rolling stock or road surface and traffic load, and simultaneously transmitting and diffusing the load to the deep part of the foundation; with the development of capital construction, part of roads need to be widened.

However, when the existing old roadbed is subjected to widening splicing, the settlement of the old roadbed is basically completed after the old roadbed is used for many years, so that the settlement of a new roadbed needs to be reduced. Therefore, the technical personnel in the field provide a roadbed structure with new and old roadbed widening and splicing, so as to solve the problems in the background technology.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the application provides a roadbed structure with widened and spliced new and old roadbeds.

The application provides a roadbed structure that concatenation was widened to new and old road bed adopts following technical scheme:

a roadbed structure formed by widening and splicing an old roadbed and an old roadbed comprises an old roadbed basic body and a new roadbed basic body, wherein a first slot and two second slots are sequentially arranged on the upper surface of the old roadbed basic body from top to bottom, two L-shaped plates are arranged between the old roadbed basic body and the new roadbed basic body and are respectively positioned in the two second slots, a plurality of mounting holes are respectively formed in the bottom walls and the side walls of the two L-shaped plates, fixing pins are arranged inside the mounting holes, and the fixing pins are arranged on the old roadbed basic body; the new road basic unit is including establishing the dregs rubble basic unit in old road basic unit one side, and the top of dregs rubble basic unit is equipped with first concrete layer, second concrete layer, pitch layer in proper order.

By adopting the technical scheme, through the arrangement of the two L-shaped plates, a good protection and support effect can be achieved on the side wall of the old road basic body, the situations that the side wall of the old road basic body is damaged and falls slag are reduced, the L-shaped plates can be supported through the plurality of fixing pins and the plurality of inclined rods, the deformation of the L-shaped plates is further reduced, through the arrangement of the two reinforcing layers, the first concrete layer and the second concrete layer can be reinforced and supported, and the settlement generated by the new road basic body can be reduced; lay in the top on first fluting and second concrete layer and flush with old way basic unit upper surface through the pitch layer to make the junction of old way basic unit and new way basic unit comparatively level, can reduce the wearing and tearing to the L shaped plate, can also reduce the damaged condition of old way basic unit lateral wall.

Preferably, a plurality of inclined rods are horizontally arranged between the side wall and the bottom wall of the L-shaped plate at equal intervals.

Through adopting above-mentioned technical scheme, a plurality of down tube can play the effect of support to the L shaped plate, and then reduce the deformation that the L shaped plate takes place.

Preferably, the first concrete layer and the second concrete layer extend to the insides of the two L-shaped plates respectively.

Through adopting above-mentioned technical scheme, be convenient for new way basic unit and the old way basic unit between be connected.

Preferably, the reinforcing layer is arranged between the slag broken stone base layer and the first concrete layer and between the first concrete layer and the second concrete layer, and is formed by connecting a plurality of transverse steel bars and a plurality of vertical steel bars.

Through adopting above-mentioned technical scheme, can play the effect of reinforcement, support to first concrete layer and second concrete layer to can reduce the settlement that new road basic unit produced.

Preferably, the asphalt layer is positioned inside the first slot, and the L-shaped plate is matched with the second slot.

Through adopting above-mentioned technical scheme, lay in the top on first fluting and second concrete layer and flush with old road basic unit upper surface through the pitch layer to make the junction of old road basic unit and new road basic unit comparatively level and smooth, can reduce the wearing and tearing to the L shaped plate.

To sum up, the application comprises the following beneficial technical effects:

through the arrangement of the two L-shaped plates, the fixing pins and the plurality of inclined rods, the side wall of the old road base body can be well protected and supported, and the situations of damage and slag falling of the side wall of the old road base body are reduced; through the setting on two back up layers, first concrete layer and second concrete layer, can play the effect of consolidating, supporting to first concrete layer and second concrete layer, two second flutings and two L shaped plates can play certain supporting role to new way basic body, and then can reduce the settlement that new way basic body produced.

Drawings

Fig. 1 is a schematic structural diagram of a roadbed structure formed by widening and splicing new and old roadbeds in the embodiment of the application;

FIG. 2 is an enlarged schematic view of a portion A in FIG. 1 according to an embodiment of the present disclosure;

FIG. 3 is a combined view of an L-shaped plate and a diagonal member in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a reinforcing layer in an embodiment of the present application.

Description of reference numerals: 1. old road basic body; 2. a first slot; 3. a second slot; 4. an L-shaped plate; 5. mounting holes; 6. a fixing pin; 7. a diagonal bar; 8. a slag and gravel base layer; 9. a first concrete layer; 10. a second concrete layer; 11. a reinforcement layer; 12. an asphalt layer; 13. new road basic body.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses roadbed structure of new and old roadbed widening concatenation. Referring to fig. 1-4, a roadbed structure formed by widening and splicing an old roadbed and an old roadbed comprises an old roadbed base body 1 and a new roadbed base body 13, wherein a first open slot 2 and two second open slots 3 are sequentially arranged on the upper surface of the old roadbed base body 1 from top to bottom, two L-shaped plates 4 are arranged between the old roadbed base body 1 and the new roadbed base body 13, the two L-shaped plates 4 are respectively positioned in the two second open slots 3, a plurality of mounting holes 5 are respectively arranged on the bottom walls and the side walls of the two L-shaped plates 4, fixing pins 6 are respectively arranged in the mounting holes 5, and the fixing pins 6 are respectively arranged on the old roadbed base body 1; the new road basic unit 13 comprises a slag-soil broken stone basic unit 8 arranged on one side of the old road basic unit 1, and a first concrete layer 9, a second concrete layer 10 and an asphalt layer 12 are sequentially arranged above the slag-soil broken stone basic unit 8.

Referring to fig. 1-3, a plurality of inclined rods 7 are horizontally and equidistantly arranged between the side wall and the bottom wall of the L-shaped plate 4, and the plurality of inclined rods 7 can support the L-shaped plate 4, so as to reduce the deformation of the L-shaped plate 4; the first concrete layer 9 and the second concrete layer 10 extend to the inside of the two L-shaped plates 4 respectively, so that the new road base body 13 and the old road base body 1 can be connected conveniently.

Referring to fig. 1 and 4, a reinforcing layer 11 is arranged between the crushed stone foundation 8 and the first concrete layer 9, and between the first concrete layer 9 and the second concrete layer 10, and the reinforcing layer 11 is formed by connecting a plurality of transverse steel bars and a plurality of vertical steel bars, so that the first concrete layer 9 and the second concrete layer 10 can be reinforced and supported, and the settlement generated by the new road foundation body 13 can be reduced; the asphalt layer 12 is located the inside of first fluting 2, and L shaped plate 4 and the 3 adaptations of second fluting lay in the top of first fluting 2 and second concrete layer 10 and flush with old way basic unit body 1 upper surface through asphalt layer 12 to make the junction of old way basic unit body 1 and new way basic unit body 13 comparatively level, can reduce the wearing and tearing to L shaped plate 4.

The implementation principle of the roadbed structure formed by widening and splicing the new roadbed and the old roadbed in the embodiment of the application is as follows: when the slag-soil gravel base layer 8 is in a compacted state, when the protective device is used, a first open groove 2 and two second open grooves 3 are excavated on an old road base body 1 in sequence, L-shaped plates 4 are placed inside the two second open grooves 3, then a plurality of fixing pins 6 penetrate through mounting holes 5 and are mounted on the old road base body 1, then the slag-soil gravel base layer 8 is laid on one side of the old road base body 1, a reinforcing layer 11 is placed above the slag-soil gravel base layer 8, a first concrete layer 9 is poured above the reinforcing layer 11, the reinforcing layer 11 is placed on the first concrete layer 9, then a second concrete layer 10 is poured, finally, an asphalt layer 12 which is flush with the upper surface of the old road base body 1 is laid on the second concrete layer 10 and the first open groove 2, construction can be completed, good protective supporting effect can be achieved on the side wall of the old road base body 1 through the arrangement of the two L-shaped plates 4, the side wall of the old road basic body 1 is reduced from being damaged and falling slag, the L-shaped plates 4 can be supported by the fixing pins 6 and the inclined rods 7, deformation of the L-shaped plates 4 is reduced, the first concrete layer 9 and the second concrete layer 10 can be reinforced and supported by the two reinforcing layers 11, the first concrete layer 9 and the second concrete layer 10, the second groove 3 and the two L-shaped plates 4 can support the new road basic body 13 to a certain extent, and accordingly settlement generated by the new road basic body 13 can be reduced; lay in the top on first fluting 2 and second concrete layer 10 and flush with old way basic unit body 1 upper surface through pitch layer 12 to make old way basic unit body 1 and new way basic unit body 13's junction comparatively level and smooth, can reduce the wearing and tearing to L shaped plate 4, can also reduce the damaged condition of old way basic unit body 1 lateral wall.

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 roadbed structure of concatenation is widened to new and old road bed, includes old road basic unit (1) and new road basic unit (13), its characterized in that: the upper surface of the old road basic body (1) is sequentially provided with a first open slot (2) and two second open slots (3) from top to bottom, two L-shaped plates (4) are arranged between the old road basic body (1) and the new road basic body (13), the two L-shaped plates (4) are respectively positioned in the two second open slots (3), the bottom walls and the side walls of the two L-shaped plates (4) are respectively provided with a plurality of mounting holes (5), the insides of the mounting holes (5) are respectively provided with a fixed pin (6), and the fixed pins (6) are respectively arranged on the old road basic body (1); the new road basic body (13) comprises a slag and gravel basic layer (8) arranged on one side of the old road basic body (1), and a first concrete layer (9), a second concrete layer (10) and an asphalt layer (12) are sequentially arranged above the slag and gravel basic layer (8).

2. The roadbed structure of claim 1, wherein the roadbed structure comprises a structure body formed by widening and splicing an old roadbed and a new roadbed, and the structure body comprises: a plurality of inclined rods (7) are horizontally arranged between the side wall and the bottom wall of the L-shaped plate (4) at equal intervals.

3. The roadbed structure of claim 1, wherein the roadbed structure comprises a structure body formed by widening and splicing an old roadbed and a new roadbed, and the structure body comprises: the first concrete layer (9) and the second concrete layer (10) extend to the insides of the two L-shaped plates (4) respectively.

4. The roadbed structure of claim 1, wherein the roadbed structure comprises a structure body formed by widening and splicing an old roadbed and a new roadbed, and the structure body comprises: between dregs rubble basic unit (8) and first concrete layer (9), all be equipped with back up coat (11) between first concrete layer (9) and second concrete layer (10), and back up coat (11) are connected by a plurality of horizontal steel bars and a plurality of vertical steel and are constituted.

5. The roadbed structure of claim 1, wherein the roadbed structure comprises a structure body formed by widening and splicing an old roadbed and a new roadbed, and the structure body comprises: the asphalt layer (12) is positioned in the first slot (2), and the L-shaped plate (4) is matched with the second slot (3).