CN214613380U

CN214613380U - Highway subgrade settlement-preventing device

Info

Publication number: CN214613380U
Application number: CN202023179909.8U
Authority: CN
Inventors: 余红强
Original assignee: Sichuan Demao Construction Project Management Co ltd
Current assignee: Sichuan Demao Construction Project Management Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-05
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses an anti-settling device for highway subgrade, which comprises a highway main body, a slope protection and a backfill layer, wherein both sides of the top end surface of the highway main body are provided with highway guardrails, both sides of the highway main body are provided with mutually symmetrical slope protections, and the backfill layer is clamped between the slope protections and the highway main body; the highway main body comprises a roadbed, a rammed earth layer, a waterproof layer, a gravel layer, a concrete layer and an asphalt pavement, wherein the roadbed is laid on the ground, the rammed earth layer is laid on the top end surface of the roadbed, and the waterproof layer, the gravel layer, the concrete layer and the asphalt pavement are sequentially laid on the top end surface of the rammed earth layer; a plurality of drain holes are horizontally formed in the revetment, and a second steel wire mesh is arranged on one end face, close to the revetment, of the backfill layer; the bank protection is that the cross-section is triangle-shaped and inside hollow concrete piece. This highway subgrade anti-settling device, rational in infrastructure has solved the problem that exists among the prior art, is worth promoting.

Description

Highway subgrade settlement-preventing device

Technical Field

The utility model belongs to the technical field of highway construction, concretely relates to highway subgrade anti-settlement device.

Background

With the rapid development of social economy, the expressway is greatly developed domestically, a criss-cross expressway network is gradually formed to radiate the whole country, subgrade settlement is a common phenomenon which harms driving safety in the use process of the expressway, the whole subgrade sinks due to the long-time high load bearing effect of the expressway, the road surface is uneven, when a vehicle runs on the uneven road surface of the expressway, the vehicle jolts and is difficult to run, the vehicle is easy to fatigue, serious traffic accidents can happen without leaving much attention, the life of people is harmed, and the safety problem is high.

The highway belongs to a high-grade highway, the settlement phenomenon of a roadbed can also occur on the highway, the main factor causing the settlement phenomenon is roadbed water erosion, the settlement prevention measures are mainly that a waterproof layer is laid between the roadbed and roadbed piles, the waterproof effect of the waterproof layer is reduced after a long time, the settlement phenomenon still can occur, and later-stage reinforcement and maintenance are not facilitated, so that further improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device is prevented subsiding by highway subgrade to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a highway subgrade settlement-preventing device comprises a highway main body, a slope protection and a backfill layer, wherein highway guardrails are arranged on two sides of the top end face of the highway main body;

the highway main body comprises a roadbed, a rammed earth layer, a waterproof layer, a gravel layer, a concrete layer and an asphalt pavement, wherein the roadbed is laid on the ground, the rammed earth layer is laid on the top end surface of the roadbed, and the waterproof layer, the gravel layer, the concrete layer and the asphalt pavement are sequentially laid on the top end surface of the rammed earth layer;

a plurality of drain holes are horizontally formed in the protection slope, and a second steel wire mesh is arranged on one end face, close to the protection slope, of the backfill layer.

Preferably, the bank protection is for the cross-section is triangle-shaped and inside hollow concrete block, the concrete block is inside to be filled with the building stones.

Preferably, a plurality of reinforcing piles are vertically arranged on the bottom end face of the concrete block.

Preferably, each top of reinforcing pile all is equipped with inlays the fixed block inside the concrete piece, every reinforcing pile all fixes the cover piece that the cover is the coniform structure of a plurality of on the surface.

Preferably, the bottom end of the backfill layer is provided with a cushion block, and two ends of the cushion block are respectively connected with the roadbed and the concrete block.

Preferably, first steel wire meshes are laid on the rammed soil layer and the sand layer.

The utility model discloses a technological effect and advantage: according to the highway subgrade settlement-preventing device, rainwater permeating into the gravel layer through the asphalt pavement and the concrete layer can be prevented from continuously permeating under the action of the waterproof layer, so that water and soil loss of the rammed soil layer and the subgrade is avoided, meanwhile, the rainwater can be dredged to the backfill layers on two sides through gaps among the gravels in the gravel layer, then the rainwater can be discharged through the permeation of the backfill layers and the matching of the drain holes, and the settlement phenomenon of the subgrade and the rammed soil layer caused by the long-time permeation of the rainwater is effectively avoided; can consolidate backfill layer and this highway main part through the bank protection, and fill and tamp backfill layer through the variable-time, can realize the later stage reinforcement maintenance to road bed and rammed earth layer, further improved the effect of subsiding of preventing of this highway main part. This highway subgrade anti-settling device, rational in infrastructure has solved the problem that exists among the prior art, is worth promoting.

Drawings

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

fig. 2 is an enlarged view of a point a in fig. 1 according to the present invention;

fig. 3 is an enlarged view of the position B in fig. 1.

In the figure: the highway comprises a highway main body 1, a slope protection 2, a backfill layer 3, a reinforcing pile 4, a cushion block 5, a roadbed 6, a highway guardrail 7, a rammed earth layer 8, a waterproof layer 9, a sandstone layer 10, a concrete layer 11, an asphalt pavement 12, a first steel wire mesh 13, a concrete block 14, a fixed block 15, a sleeve block 16, a drain hole 17, stone 18 and a second steel wire mesh 19.

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.

The utility model provides a highway subgrade anti-settling device as shown in figures 1-3, which comprises a highway main body 1, a revetment 2 and a backfill layer 3, wherein both sides of the top end surface are provided with highway guardrails 7, both sides of the highway main body 1 are provided with mutually symmetrical revetment 2, the backfill layer 3 is clamped between the revetment 2 and the highway main body 1, and the backfill layer 3 can be filled with soil or gravel and tamped;

the highway main body 1 comprises a roadbed 6, a rammed earth layer 8, a waterproof layer 9, a sand-stone layer 10, a concrete layer 11 and an asphalt pavement 12, wherein the roadbed 6 is laid on the ground, the rammed earth layer 8 is laid on the top end surface of the roadbed 6, and the waterproof layer 9, the sand-stone layer 10, the concrete layer 11 and the asphalt pavement 12 are sequentially laid on the top end surface of the rammed earth layer 8;

a plurality of wash ports 17 are horizontally formed in the revetment 2 and used for draining water seepage, and a second steel wire mesh 19 is arranged on one end face, close to the revetment 2, of the backfill layer 3, so that the backfill material in the backfill layer 3 is prevented from running off through the wash ports 17.

Specifically, the revetment 2 is a concrete block 14 with a triangular cross section and a hollow interior, and stones 18 are filled in the concrete block 14.

Specifically, a plurality of reinforcing piles 4 are vertically arranged on the bottom end face of the concrete block 14, so that the stability of the concrete block 14 is improved.

Specifically, every the top of reinforcing pile 4 all is equipped with inlays the fixed block 15 inside concrete block 14, every reinforcing pile 4 all fixes the cover on the surface and is equipped with a plurality of sleeve block 16 that is the coniform structure, makes reinforcing pile 4 more firm.

Specifically, the bottom end of the backfill layer 3 is provided with a cushion block 5, and two ends of the cushion block 5 are respectively connected with the roadbed 6 and the concrete block 14 to play a role in supporting the backfill layer 3.

Specifically, first steel wire meshes 13 are paved on the surfaces of the ramming soil layer 8 and the gravel layer 10, so that the ramming soil layer 8 and the gravel layer 10 are prevented from running off.

The working principle is as follows: when the highway subgrade anti-settling device is used, a part of rainwater on the surface of the asphalt pavement 12 can flow to the two sides of the asphalt pavement 12 and is discharged by a municipal drainage system, and a part of rainwater penetrates through the asphalt pavement 12 and the concrete layer 11 and permeates into the gravel layer 10, at the moment, the rainwater can be prevented from continuously permeating under the action of the waterproof layer 9, so that the water and soil loss of the rammed earth layer 8 and the subgrade 6 is avoided, meanwhile, the rainwater can be dredged into the backfill layers 3 on the two sides through the gaps among the gravel in the gravel layer 10, and then the rainwater can be discharged through the permeation of the backfill layers 3 and the matching of the drainage holes 17, so that the settlement phenomenon of the subgrade 6 and the rammed earth layer 8 caused by the long-time permeation of the rainwater is effectively avoided; further, through the cooperation of reinforcing pile 4 and bank protection 2, consolidate backfill layer 3 and highway main part 1, and through filling and tamping backfill layer 3 when indefinite, can realize consolidating the later stage of maintaining roadbed 6 and rammed earth layer 8, further improved the effect of subsiding of preventing of this highway main part 1. This highway subgrade anti-settling device, rational in infrastructure has solved the problem that exists among the prior art, is worth promoting.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a device is prevented subsiding by highway subgrade, includes that top terminal surface both sides are equipped with highway main part (1), bank protection (2) and backfill layer (3) of highway guardrail (7), its characterized in that: two sides of the highway main body (1) are provided with mutually symmetrical revetments (2), and a backfill layer (3) is clamped between the revetments (2) and the highway main body (1);

the highway main body (1) comprises a roadbed (6), a rammed earth layer (8), a waterproof layer (9), a gravel layer (10), a concrete layer (11) and an asphalt pavement (12), wherein the roadbed (6) is paved on the ground, the rammed earth layer (8) is paved on the top end face of the roadbed (6), and the waterproof layer (9), the gravel layer (10), the concrete layer (11) and the asphalt pavement (12) are sequentially paved on the top end face of the rammed earth layer (8);

a plurality of drain holes (17) are horizontally formed in the protection slope (2), and a second steel wire mesh (19) is arranged on one end face, close to the protection slope (2), of the backfill layer (3).

2. The highway subgrade anti-settling device according to claim 1, which is characterized in that: the slope protection (2) is a concrete block (14) with a triangular cross section and hollow inside, and stones (18) are filled in the concrete block (14).

3. The highway subgrade anti-settling device according to claim 2, wherein: and a plurality of reinforcing piles (4) are vertically arranged on the bottom end surface of the concrete block (14).

4. The highway subgrade anti-settling device according to claim 3, wherein: each top of reinforcing pile (4) all is equipped with inlays fixed block (15) inside concrete block (14), every reinforcing pile (4) all fixed the cover on the surface is equipped with a plurality of and is the lantern ring piece (16) of coniform structure.

5. The highway subgrade anti-settling device according to claim 1, which is characterized in that: and a cushion block (5) is arranged at the bottom end of the backfill layer (3), and two ends of the cushion block (5) are respectively connected with the roadbed (6) and the concrete block (14).

6. The highway subgrade anti-settling device according to claim 1, which is characterized in that: and first steel wire meshes (13) are paved on the surfaces of the ramming layer (8) and the gravel layer (10).