Reinforced roadbed structure

Abstract

The utility model discloses a kind of reinforced subgrade structures capable of preventing subgrade softening, including subgrade main body, including by inside to outside sequentially distributed compacted soil base layer, compacted soil cushion layer, fill stone layer and fill gravel layer;Supporting assembly, including the concrete pile board being set in the inside of compacted soil cushion layer, the concrete connecting plate being laid between compacted soil cushion layer and fill stone layer position, the pile column being embedded in compacted soil cushion layer and compacted soil base layer inside and penetrating concrete connecting plate;Reinforcing component, including the concrete pile block being fixed with pile column top end by bolt;Supporting assembly and reinforcing component are designed, and subgrade is supported under the synergistic effect of concrete pile board and concrete connecting plate and pile column, left and right symmetrical distribution concrete pile board supports subgrade side, concrete pile board and concrete connecting plate anchor subgrade side, avoid long-term unilateral on pavement to be subjected to load effect, to cause uneven stress of subgrade, appear one side fatigue damage and crack, deformation softening.

Description

Technical Field

[0001] This utility model belongs to the field of roadbed technology, specifically relating to a reinforced roadbed structure that can prevent roadbed softening. Background Technology

[0002] The roadbed is a rock and soil structure constructed according to a certain route location and technical requirements. The roadbed structure laying method is the existing technology. One of the common problems of the roadbed is roadbed softening, which is mainly caused by the long-term effects of water and load.

[0003] The authorized document with announcement number CN222666445U discloses a reinforced roadbed structure that can prevent roadbed softening. The document describes that "a first crushed stone layer is laid on the soil base layer, and a lime-soil cushion layer is laid on the first crushed stone layer... one end of the drainage mechanism is connected to the second crushed stone layer, and the other end of the drainage mechanism is connected to the outside of the road slope"; by draining rainwater that enters the roadbed, the softening effect of the roadbed due to water is avoided.

[0004] The technical solution still has shortcomings: although drainage channels are set up inside the roadbed near the road surface to drain water that enters the roadbed, the load-bearing capacity and structural strength of the roadbed are reduced. In addition, during the drainage process, the roadbed comes into contact with water and becomes damp. Under the load of frequent vehicle traffic on the road, the roadbed soil will suffer fatigue damage and gradually soften. The lack of internal support for the roadbed is also a deficiency.

[0005] The existing roadbeds have the problem of lacking internal support design during the paving process. To address this, this application proposes a reinforced roadbed structure that can prevent roadbed softening. Utility Model Content

[0006] The purpose of this invention is to provide a reinforced roadbed structure that can prevent roadbed softening, so as to solve the problem of the lack of internal support design in the roadbed mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a reinforced roadbed structure that can prevent roadbed softening, comprising...

[0008] The main body of the roadbed includes, from the inside out, a compacted soil base layer, a compacted soil cushion layer, a soil-filled crushed stone layer, and a soil-filled gravel layer;

[0009] The support components include a concrete pile slab disposed inside the compacted soil cushion layer, a concrete connecting plate laid between the compacted soil cushion layer and the backfill gravel layer, and piles penetrating the concrete connecting plate and embedded inside the compacted soil cushion layer and the compacted soil base layer.

[0010] The reinforcement component includes a concrete pile block that is bolted to the top of the pile column, and reinforcing grooves distributed on both sides of the concrete pile block, wherein the interior of the reinforcing grooves is filled with sand.

[0011] Preferably, the reinforcing groove is a rectangular groove with an open top surface.

[0012] Preferably, a water outlet pipe is fixed on the bottom surface of the reinforcing trough, and the water outlet pipe is connected to the inside of the reinforcing trough.

[0013] Preferably, the inside of the water outlet pipe is provided with geotextile mat, and a water flow channel a is formed on the surface of the concrete connecting plate, with the water outlet pipe opposite to the water flow channel a.

[0014] Preferably, a column hole b is provided at the middle position of the surface of the concrete connecting plate for the pile column to pass through, and a water flow hole c is provided on the surface of the concrete connecting plate located on the water flow channel a.

[0015] Preferably, the concrete pile plate is an isosceles trapezoidal three-dimensional structure with one open side. The interior of the concrete pile plate is provided with drainage pipes, support plates, geotextile and crushed stone filler from the inside out. The water flow hole c is opposite to the crushed stone filler.

[0016] Preferably, the surface of the support plate is provided with a water pipe that is inserted into the drainage pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, the designed support components and reinforcement components, together with the concrete pile slab, concrete connecting plate and pile column, achieve the function of supporting the roadbed. The symmetrically distributed concrete pile slab supports the roadbed on the side, and the concrete pile slab and concrete connecting plate anchor the side of the roadbed, so as to avoid the road surface being subjected to load on one side for a long time, which would lead to uneven stress on the roadbed, resulting in fatigue damage, cracking, deformation and softening on one side.

[0019] 2. In this utility model, through the designed concrete connecting plate, concrete pile plate, geotextile and drainage pipe, rainwater that penetrates deep into the roadbed passes through the sand filler, concrete connecting plate, concrete pile plate, crushed stone filler, geotextile and water pipe and then enters the drainage pipe. The rainwater is collected in the drainage pipe and finally discharged along the predetermined drainage path of the drainage pipe, which has the function of draining the infiltrated rainwater. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the concrete connecting plate of this utility model;

[0022] Figure 3 This is a top view of the concrete connecting plate of this utility model.

[0023] Figure 4 This is a top view of the reinforcing groove of this utility model;

[0024] In the diagram: 1. Compacted soil base course; 2. Compacted soil cushion layer; 3. Backfill gravel layer; 4. Backfill gravel layer; 5. Concrete pile slab; 6. Concrete connecting slab; 7. Reinforcing trench; 8. Concrete pile block; 9. Pile column; 51. Crushed stone fill; 52. Geotextile; 53. Support plate; 54. Drainage pipe; 71. Sand fill; 72. Water outlet pipe; 73. Geotextile mat; 531. Water pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 4 This utility model provides a technical solution: a reinforced roadbed structure that can prevent roadbed softening, including a roadbed body, comprising a compacted soil base layer 1, a compacted soil cushion layer 2, a soil-filled crushed stone layer 3, and a soil-filled gravel layer 4 distributed from the inside out. The laying process of the roadbed body is the existing technology, which usually involves excavating a foundation pit at a predetermined location on the planned ground using roadbed construction equipment, laying soil material in the excavated foundation pit, and laying corresponding filling soil material as needed to achieve the purpose of roadbed construction. Figure 1 In this context, A represents the slope. Figure 1In this application, B represents the road surface. The support assembly includes a concrete pile slab 5 installed inside the compacted soil cushion layer 2, a concrete connecting plate 6 laid between the compacted soil cushion layer 2 and the fill gravel layer 3, and piles 9 penetrating the concrete connecting plate 6 and embedded inside the compacted soil cushion layer 2 and the compacted soil base layer 1. The piles 9 fix the center position inside the roadbed, anchoring the compacted soil cushion layer 2 and the fill gravel layer 3. All components of the support assembly in this application are prefabricated and can be directly laid on the construction site. The concrete connecting plate 6 is made of cured concrete. The concrete pile slab 5 and the concrete connecting plate 6 support the compacted soil cushion layer 2 and the fill gravel layer 3. The concrete pile slab 5 and the concrete connecting plate 6 are made of concrete, have high structural strength and load capacity, and are symmetrical. The distributed concrete pile slabs 5 are close to the slope A. When the vehicle is close to the side of the road, the concrete pile slabs 5 and the concrete connecting plates 6 anchor the side of the roadbed, preventing the roadbed from being subjected to load on one side for a long time, which would lead to uneven stress on the roadbed and fatigue damage, cracking, and deformation on one side. The reinforcement components include concrete pile blocks 8 that are fixed to the top of the pile column 9 by bolts and reinforcing grooves 7 distributed on both sides of the concrete pile blocks 8. The reinforcing grooves 7 are fixed to the concrete connecting plates 6 by bolts. The concrete pile blocks 8 and the reinforcing grooves 7 serve to reinforce the concrete connecting plates 6 and further anchor them. The interior of the reinforcing grooves 7 is filled with sand filler 71, which fills the interior of the reinforcing grooves 7 and also serves to allow water to seep in.

[0027] In this embodiment, the reinforcing groove 7 is a rectangular groove with an open top surface. After the reinforcing groove 7 is laid on the concrete connecting plate 6, sand filler 71 can be filled into the reinforcing groove 7. The reinforcing groove 7 plays the role of further anchoring the concrete connecting plate 6.

[0028] In this embodiment, a water outlet pipe 72 is fixed on the bottom surface of the reinforcing groove 7. The water outlet pipe 72 is connected to the inside of the reinforcing groove 7. A geotextile mat 73 is provided inside the water outlet pipe 72. A water flow channel a is opened on the surface of the concrete connecting plate 6. The water outlet pipe 72 is opposite to the water flow channel a. When rainwater enters the backfill gravel layer 3, the rainwater seeps into the sand filler 71 in the reinforcing groove 7. The rainwater seeps down from the sand filler 71 and then enters the surface of the concrete connecting plate 6 and is concentrated. Then the rainwater continues to seep down. During the rainwater seepage process, the reinforcing groove 7 limits the sand filler 71 to prevent it from softening due to the action of wet rainwater.

[0029] In this embodiment, a column hole b is provided in the middle of the surface of the concrete connecting plate 6 for the pile 9 to pass through. A water flow hole c is provided on the surface of the concrete connecting plate 6 located on the water flow channel a. The pile 9 passes through the concrete connecting plate 6 and anchors the concrete connecting plate 6. Rainwater accumulated in the water flow channel a on the surface of the concrete connecting plate 6 seeps down through the water flow hole c, so that the rainwater entering the backfill gravel layer 3 seeps down in a predetermined direction.

[0030] In this embodiment, the concrete pile plate 5 is an open isosceles trapezoidal three-dimensional structure. The interior of the concrete pile plate 5 is provided with a drainage pipe 54, a support plate 53, a geotextile 52 and a crushed stone filler 51 from the inside out. The water flow hole c is opposite to the crushed stone filler 51. The surface of the support plate 53 is provided with a water flow pipe 531 inserted into the drainage pipe 54. Rainwater from the concrete connecting plate 6 penetrates into the interior of the concrete pile plate 5. After passing through the crushed stone filler 51, the geotextile 52 and the water flow pipe 531, the rainwater enters the interior of the drainage pipe 54. The rainwater collects in the drainage pipe 54 and finally discharges along the predetermined drainage path.

[0031] Working principle and usage process of this utility model:

[0032] During the roadbed laying, after the compacted soil base course 1 is laid, the precast concrete pile slab 5 is laid on the compacted soil base course 1 at the predetermined position.

[0033] Then, a compacted soil cushion layer 2 is laid on the surface of the compacted soil base layer 1 and around the concrete pile slab 5;

[0034] After the compacted soil cushion layer 2 is laid, the concrete connecting plate 6 is fixed on the surface of the concrete pile slab 5 and the compacted soil cushion layer 2.

[0035] Holes are drilled in the concrete connecting plate 6, the compacted soil base layer 1, and the compacted soil cushion layer 2. Then, precast piles 9 are inserted into the drilled holes. The concrete pile plate 5, the concrete connecting plate 6, and the piles 9 work together to support the roadbed.

[0036] The symmetrically distributed concrete pile plates 5 are close to the slope A. When the vehicle is close to the side of the road, the concrete pile plates 5 and the concrete connecting plates 6 are anchored to the side of the roadbed to prevent the road surface from being subjected to load on one side for a long time, which would lead to uneven stress on the roadbed and cause fatigue damage, cracking and deformation on one side.

[0037] The reinforcing groove 7 and concrete pile block 8 are laid on the surface of concrete connecting plate 6, followed by the soil-filled crushed stone layer 3 and the soil-filled gravel layer 4, and finally the road surface B is laid.

[0038] When rainwater enters the backfill gravel layer 3, the rainwater seeps into the sand filler 71 in the reinforcing groove 7. The rainwater seeps down from the sand filler 71 and then enters the surface of the concrete connecting plate 6 and is concentrated. The rainwater continues to seep down. During the rainwater seepage process, the reinforcing groove 7 limits the sand filler 71 to prevent it from softening due to the action of wet rainwater.

[0039] Rainwater passes through the gravel filler 51, geotextile 52 and drainage pipe 531 and enters the drainage pipe 54. The rainwater is collected in the drainage pipe 54 and finally discharged along the predetermined drainage path, which has the function of draining the infiltrated rainwater.

[0040] In summary: The roadbed of this application has an internal support design. The concrete pile plate 5, the concrete connecting plate 6 and the pile column 9 work together to support the roadbed. The symmetrically distributed concrete pile plate 5 is close to the slope. The concrete pile plate 5 and the concrete connecting plate 6 anchor the sides of the roadbed, avoiding long-term unilateral load on the road surface, which would lead to uneven stress on the roadbed, fatigue damage on one side, cracking, deformation and softening.

[0041] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced roadbed structure that can prevent roadbed softening, characterized in that: include The main body of the roadbed includes a compacted soil base layer (1), a compacted soil cushion layer (2), a soil-filled crushed stone layer (3), and a soil-filled gravel layer (4), which are distributed from the inside out. The support components include a concrete pile plate (5) disposed inside the compacted soil cushion (2), a concrete connecting plate (6) laid between the compacted soil cushion (2) and the backfill gravel layer (3), and a pile column (9) penetrating the concrete connecting plate (6) and embedded inside the compacted soil cushion (2) and the compacted soil base (1). The reinforcement assembly includes a concrete pile block (8) fixed to the top of the pile column (9) by bolts, and reinforcing grooves (7) distributed on both sides of the concrete pile block (8), the interior of which is filled with sand filler (71).

2. The reinforced roadbed structure for preventing roadbed softening according to claim 1, characterized in that: The reinforcing groove (7) is a rectangular groove with an open top surface.

3. The reinforced roadbed structure for preventing roadbed softening according to claim 1, characterized in that: A water outlet pipe (72) is fixed on the bottom surface of the reinforcing groove (7), and the water outlet pipe (72) is connected to the inside of the reinforcing groove (7).

4. A reinforced roadbed structure for preventing roadbed softening according to claim 3, characterized in that: The interior of the water outlet pipe (72) is provided with geotextile mat (73), and the surface of the concrete connecting plate (6) is provided with a water flow channel a, with the water outlet pipe (72) opposite to the water flow channel a.

5. A reinforced roadbed structure for preventing roadbed softening according to claim 1, characterized in that: The concrete connecting plate (6) has a column hole b in the middle of its surface for the pile column (9) to pass through, and the concrete connecting plate (6) has a water hole c on its surface located on the water channel a.

6. A reinforced roadbed structure for preventing roadbed softening according to claim 5, characterized in that: The concrete pile plate (5) is an isosceles trapezoidal three-dimensional structure with one open side. The interior of the concrete pile plate (5) is provided with drainage pipe (54), support plate (53), geotextile (52) and crushed stone filler (51) from the inside out. The water flow hole c is opposite to the crushed stone filler (51).

7. A reinforced roadbed structure for preventing roadbed softening according to claim 6, characterized in that: The surface of the support plate (53) is provided with a water pipe (531) that is inserted into the drainage pipe (54).

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