CN214005284U

CN214005284U - Widened and spliced roadbed structure of roadbed

Info

Publication number: CN214005284U
Application number: CN202022759708.9U
Authority: CN
Inventors: 陈伟
Original assignee: Daqing Hongxiang Engineering Design Co ltd
Current assignee: Daqing Hongxiang Engineering Design Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-20
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a concatenation roadbed structure is widened to road bed, including old road bed and new road bed, first splice groove has been seted up in the left side of old road bed, the first concatenation piece of left side fixedly connected with of new road bed, first concatenation piece extends to the inner chamber in first splice groove, the second splice groove has been seted up to the right side at old road bed top, and the left side fixedly connected with second of new road bed splices the piece, and the left side of second splice block extends to the inner chamber in second splice groove. The utility model discloses possess the bearing capacity that improves new and old road bed road surface concatenation department and reduce the advantage of subsiding the difference, solved through many years' vehicle load, the settlement of the original road bed of highway is out of shape and has been reached steady state, and the road bed filler of widened portion still can produce compressive deformation and subside the deformation, this just makes between the new and old road bed intensity difference different and produce the difference and subside, and then leads to the road surface structure at new and old road bed combination position to appear the problem of serious vertical fracture separation.

Description

Widened and spliced roadbed structure of roadbed

Technical Field

The utility model relates to a road paving technical field specifically is a concatenation roadbed structure is widened to road bed.

Background

In recent years, with the rapid development of economy and the rapid increase of traffic volume in China, the number of highway transportation demands in China is increased year by year, the traffic flow of some existing expressways is saturated, widening and modification are urgently needed to improve the traffic capacity of the expressways, and the expressways are further suitable for the rapid development demands of modern economy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a concatenation roadbed structure is widened to road bed, possess the bearing capacity that improves new and old road bed road surface concatenation department and reduce the advantage of subsiding the difference, the vehicle load through many years has been solved, the settlement deformation of the original road bed of highway has reached stable state, and the road bed filler of widened part still can produce compression deformation and subside the deformation, this just makes the difference of intensity different and produce the difference between new and old road bed and subsides, and then the problem that serious longitudinal cracking separation appears in the road surface structure that leads to new and old road bed combination position.

In order to achieve the above object, the utility model provides a following technical scheme: a spliced roadbed structure is widened on a roadbed, and comprises an old roadbed and a new roadbed, wherein a first splicing groove is formed in the left side of the old roadbed, a first splicing block is fixedly connected to the left side of the new roadbed, the first splicing block extends to the inner cavity of the first splicing groove, a second splicing groove is formed in the right side of the top of the old roadbed, a second splicing block is fixedly connected to the left side of the new roadbed, the left side of the second splicing block extends to the inner cavity of the second splicing groove, the new roadbed comprises a road surface, a first geogrid layer, a gravel layer, a waterproof layer, a first reinforced concrete layer, a second geogrid layer and a gravel layer, the bottom of the road surface is fixedly connected with the top of the first geogrid layer, the bottom of the first geogrid layer is fixedly connected with the top of the gravel layer, and the bottom of the gravel layer is fixedly connected with the top of the waterproof layer, the bottom of waterproof layer and the top fixed connection on first reinforced concrete layer, the bottom on first reinforced concrete layer and the top fixed connection on second reinforced concrete layer, the bottom on second reinforced concrete layer and the top fixed connection on second geogrid layer, the bottom on second geogrid layer and the top fixed connection on rubble layer.

Preferably, the top of waterproof layer is run through and is provided with the drain pipe, the bottom of drain pipe runs through first reinforced concrete layer, second geogrid layer and metalling in proper order and extends to the bottom of metalling.

Preferably, the top of the old roadbed is provided with an anchor rod in a penetrating manner, and the bottom of the anchor rod penetrates through the old roadbed and the new roadbed in sequence and extends to the inside of the old roadbed.

Preferably, the top of the anchor rod is fixedly connected with a circular plate, and the top of the old roadbed is provided with a groove matched with the circular plate.

Preferably, the first splicing groove and the second splicing groove are designed in an integrated mode, and the first splicing block and the second splicing block are designed in an integrated mode.

Preferably, the waterproof layer is made of asphalt felt materials, and the first geogrid layer and the second geogrid layer are made of steel-plastic materials.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an old road bed, new road bed, first splice groove, first splice block, the second splice groove, the second splice block, the road surface, first geogrid layer, the gravel layer, the waterproof layer, first reinforced concrete layer, second geogrid layer and gravel layer cooperate, possess the bearing capacity that improves new and old road bed road surface concatenation department and reduce the advantage of subsiding the difference, the vehicle load through many years has been solved, the original subsiding of highway has the road bed warp and has reached steady state, and the road bed filler of widen part still can produce compressive deformation and subside the deformation, this is just so that the difference in strength is different between the new and old road bed and produce the difference and subside, and then the problem that the serious longitudinal cracking separation appears in the road surface structure that leads to new and old road bed combination position.

2. The utility model discloses a set up first splice groove and first splice piece, can increase the area of contact between new road bed and the old road bed, produce ascending support component to new road bed simultaneously, the compressive property of new road bed has been improved, through setting up second splice groove and second splice piece, make new road bed and old road bed carry out the cross connection, avoid the collapse of new road bed, and increase the area of contact of new road bed and old road bed once more, strengthen the intensity of concatenation connection, through setting up the drain pipe, make the ponding of gravel layer infiltration discharge downwards through the drain pipe, avoid long-time piling up of ponding in the road bed, lead to the road bed to take place to cave in, through setting up the stock, strengthen the transverse connection between new road bed and the old road bed, reduce the difference of subsiding, make the old road bed overall stability of new road bed after the concatenation better, constitute for asphalt felt material through setting up the waterproof layer, good cohesiveness has, Plasticity, water resistance and durability, and effectively prevents the downward flowing of the seeped water from damaging the structure of the roadbed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a top-down structure of the old roadbed of the utility model;

fig. 3 is a schematic view of the new roadbed overlooking structure of the utility model.

In the figure: 1 old road bed, 2 new road beds, 3 first concatenation grooves, 4 first concatenation blocks, 5 second concatenation grooves, 6 second concatenation blocks, 7 road surfaces, 8 first geogrids layer, 9 gravel layer, 10 waterproof layer, 11 first reinforced concrete layer, 12 second reinforced concrete layer, 13 second geogrids layer, 14 rubble layer, 15 drain pipes, 16 stock, 17 plectane, 18 recesses.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a roadbed widening spliced roadbed structure comprises an old roadbed 1 and a new roadbed 2, wherein the left side of the old roadbed 1 is provided with a first splicing groove 3, the left side of the new roadbed 2 is fixedly connected with a first splicing block 4, the first splicing block 4 extends to the inner cavity of the first splicing groove 3, the right side of the top of the old roadbed 1 is provided with a second splicing groove 5, the left side of the new roadbed 2 is fixedly connected with a second splicing block 6, the left side of the second splicing block 6 extends to the inner cavity of the second splicing groove 5, the new roadbed 2 comprises a pavement 7, a first geogrid layer 8, a gravel layer 9, a waterproof layer 10, a first reinforced concrete layer 11, a second reinforced concrete layer 12, a second geogrid layer 13 and a gravel layer 14, the bottom of the pavement 7 is fixedly connected with the top of the first geogrid layer 8, the bottom of the first geogrid layer 8 is fixedly connected with the top of the gravel layer 9, the bottom of the gravel layer 9 is fixedly connected with the top of the waterproof layer 10, the bottom of the waterproof layer 10 is fixedly connected with the top of the first reinforced concrete layer 11, the bottom of the first reinforced concrete layer 11 is fixedly connected with the top of the second reinforced concrete layer 12, the bottom of the second reinforced concrete layer 12 is fixedly connected with the top of the second geogrid layer 13, the bottom of the second geogrid layer 13 is fixedly connected with the top of the gravel layer 14, the contact area between the new roadbed 2 and the old roadbed 1 can be increased by arranging the first splicing grooves 3 and the first splicing blocks 4, meanwhile, upward supporting component force is generated on the new roadbed 2, the compression resistance of the new roadbed 2 is improved, the new roadbed 2 and the old roadbed 1 are connected in a staggered manner by arranging the second splicing grooves 5 and the second splicing blocks 6, the collapse of the new roadbed 2 is avoided, and the contact area between the new roadbed 2 and the old roadbed 1 is increased again, the strength of splicing connection is enhanced, a drain pipe 15 penetrates through the top of a waterproof layer 10, the bottom of the drain pipe 15 sequentially penetrates through a first reinforced concrete layer 11, a second reinforced concrete layer 12, a second geogrid layer 13 and a gravel layer 14 and extends to the bottom of the gravel layer 14, accumulated water permeating through a gravel layer 9 is discharged downwards through the drain pipe 15 by arranging the drain pipe 15, long-time accumulation of the accumulated water in a roadbed is avoided, so that the roadbed is sunken, an anchor rod 16 penetrates through the top of an old roadbed 1, the bottom of the anchor rod 16 sequentially penetrates through the old roadbed 1 and a new roadbed 2 and extends to the inside of the old roadbed 1, the transverse connection between the new roadbed 2 and the old roadbed 1 is enhanced by arranging the anchor rod 16, the difference of settlement is reduced, the overall stability of the spliced new roadbed and old roadbed is better, the first splicing groove 3 and the second splicing groove 5 are designed in an integrated mode, the first splicing block 4 and the second splicing block 6 are designed in an integrated mode, the waterproof layer 10 is made of asphalt felt materials, the first geogrid layer 8 and the second geogrid layer 13 are made of steel-plastic materials, the waterproof layer 10 is made of asphalt felt materials, the waterproof layer has good cohesiveness, plasticity, water resistance and durability, the downward flowing of seeped water is effectively prevented from damaging the structure of the roadbed, the old roadbed 1, the new roadbed 2, the first splicing groove 3, the first splicing block 4, the second splicing groove 5, the second splicing block 6, the road surface 7, the first geogrid layer 8, the gravel layer 9, the waterproof layer 10, the first reinforced concrete layer 11, the second reinforced concrete layer 12, the second geogrid layer 13 and the gravel layer 14 are matched, the advantages of improving the bearing capacity at the splicing part of the new roadbed and the old roadbed and reducing the settlement difference are achieved, the vehicle load is solved after many years, the settlement deformation of the original roadbed of the highway reaches a stable state, the roadbed filling of the widened part can also generate compression deformation and settlement deformation, so that the difference of the strength between the new roadbed and the old roadbed is caused to generate differential settlement, and the problem of serious longitudinal cracking and separation of the pavement structure at the joint part of the new roadbed and the old roadbed is caused.

When the splicing type roadbed is used, the contact area between the new roadbed 2 and the old roadbed 1 can be increased by arranging the first splicing grooves 3 and the first splicing blocks 4, an upward supporting component force is generated on the new roadbed 2, the compression resistance of the new roadbed 2 is improved, the new roadbed 2 and the old roadbed 1 are connected in a staggered mode by arranging the second splicing grooves 5 and the second splicing blocks 6, collapse of the new roadbed 2 is avoided, the contact area between the new roadbed 2 and the old roadbed 1 is increased again, the splicing connection strength is enhanced, accumulated water permeating through the gravel layer 9 is discharged downwards through the drain pipe 15 by arranging the drain pipe 15, the phenomenon that the accumulated water is accumulated in the roadbed for a long time to cause sinking of the roadbed is avoided, the transverse connection between the new roadbed 2 and the old roadbed 1 is enhanced by arranging the anchor rods 16, the difference of settlement is reduced, the overall stability of the spliced new roadbed and old roadbed is better, the waterproof layer 10 is made of asphalt oil material, the water-resistant and anti-seepage roadbed material has good cohesiveness, plasticity, water resistance and durability, and effectively prevents downward seepage of accumulated water from damaging the roadbed structure.

In summary, the following steps: this road bed widens concatenation roadbed structure, through old road bed 1, new road bed 2, first splice groove 3, first splice block 4, second splice groove 5, second splice block 6, road surface 7, first geogrid layer 8, gravel layer 9, waterproof layer 10, first reinforced concrete layer 11, second reinforced concrete layer 12, second geogrid layer 13 and gravel layer 14 cooperate, the vehicle load through many years has been solved, the settlement deformation of the original road bed of highway has reached steady state, and the road bed filler of widen part still can produce compressive deformation and settlement deformation, this just makes between the new and old road bed intensity difference and produces the difference and subsides, and then the problem that leads to the road surface structure of new and old road bed combination position to appear serious longitudinal cracking separation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a concatenation roadbed structure is widened to road bed, includes old road bed (1) and new road bed (2), its characterized in that: the novel roadbed comprises an old roadbed (1), a new roadbed (2), a first splicing groove (3), a first splicing block (4) fixedly connected to the left side of the old roadbed (1), a second splicing groove (5) arranged on the right side of the top of the old roadbed (1), a second splicing block (6) fixedly connected to the left side of the new roadbed (2), an inner cavity extending from the left side of the second splicing block (6) to the inner cavity of the second splicing groove (5), a pavement (7), a first geogrid layer (8), a gravel layer (9), a waterproof layer (10), a first reinforced concrete layer (11), a second reinforced concrete layer (12), a second geogrid layer (13) and a gravel layer (14), wherein the bottom of the pavement (7) is fixedly connected with the top of the first geogrid layer (8), the bottom of first geogrid layer (8) and the top fixed connection of gravel layer (9), the bottom of gravel layer (9) and the top fixed connection of waterproof layer (10), the bottom of waterproof layer (10) and the top fixed connection of first reinforced concrete layer (11), the bottom of first reinforced concrete layer (11) and the top fixed connection of second reinforced concrete layer (12), the bottom of second reinforced concrete layer (12) and the top fixed connection of second geogrid layer (13), the bottom of second geogrid layer (13) and the top fixed connection of gravel layer (14).

2. The roadbed widening spliced roadbed structure of claim 1, wherein: the top of waterproof layer (10) is run through and is provided with drain pipe (15), the bottom of drain pipe (15) runs through first reinforced concrete layer (11), second reinforced concrete layer (12), second geogrid layer (13) and rubble layer (14) in proper order and extends to the bottom of rubble layer (14).

3. The roadbed widening spliced roadbed structure of claim 1, wherein: the top of old road bed (1) is run through and is provided with stock (16), the bottom of stock (16) runs through old road bed (1) and new road bed (2) in proper order and extends to the inside of old road bed (1).

4. The roadbed widening spliced roadbed structure of claim 3, wherein: the top fixedly connected with plectane (17) of stock (16), recess (18) with plectane (17) looks adaptation are seted up to the top of old road bed (1).

5. The roadbed widening spliced roadbed structure of claim 1, wherein: the first splicing groove (3) and the second splicing groove (5) are designed in an integrated mode, and the first splicing block (4) and the second splicing block (6) are designed in an integrated mode.

6. The roadbed widening spliced roadbed structure of claim 1, wherein: the waterproof layer (10) is made of asphalt felt materials, and the first geogrid layer (8) and the second geogrid layer (13) are made of steel-plastic materials.