Road subgrade structure based on recycling of asphalt waste powder resources

Abstract

This utility model relates to the field of road subgrade structure technology, and in particular to a road subgrade structure based on the reuse of asphalt waste powder resources. It includes an original soil slope and a retaining wall. Two sets of reinforced concrete columns are provided between the original soil slope and the retaining wall. Reinforced concrete beams are provided at the upper ends of two adjacent reinforced concrete columns in the left-right direction. The roadbed body is formed on the upper surface of the reinforced concrete columns. A first plaster layer is applied to the inner wall of the first drainage ditch, and a second plaster layer is applied to the inner wall of the second drainage ditch. Anti-clogging devices are provided on the left and right inner walls of the first plaster layer. This utility model, by setting reinforced concrete columns on both sides of the lower surface of the roadbed body and providing reinforced concrete beams at the upper ends of the reinforced concrete columns, ensures the stability of the overall roadbed structure through the stress of the reinforced concrete columns and beams. The anti-clogging devices, through filter plates, block stones and foreign objects, preventing blockage of the first drainage ditch.

Description

Technical Field

[0001] This utility model relates to the field of road subgrade structure technology, and in particular to a road subgrade structure based on the reuse of asphalt waste powder resources. Background Technology

[0002] The roadbed is the foundation of the pavement, a geotechnical structure formed through excavation or filling. Its main function is to provide the necessary conditions for pavement construction and vehicle operation, bear the loads of vehicles and traffic, and transfer and diffuse these loads deeper into the ground. Asphalt waste powder, the waste generated during the mixing of asphalt concrete, is mostly fine dust with a particle size ≤0.075mm. It not only occupies land but is also a major source of air, water, and soil pollution. By uniformly mixing asphalt waste powder with slag, fly ash, and alkali activators in a certain proportion and adding it to the roadbed, the waste material is reused.

[0003] For example, the authorization announcement number "CN213867142U" describes a roadbed structure that uses layered cement columns inserted into the fill soil. The lower cement columns can be inserted into the original soil slope, and the lower end of the upper cement columns is vertically inserted between two adjacent lower cement columns. The upper ends of the upper cement columns are fixedly connected together by connecting plates, which improves the stability of the roadbed fill with slope.

[0004] The above-mentioned and existing technologies have the following defects: the roadbed structure is only filled with soil and cement pillars on one side, while the other side is subject to rainwater erosion, which can easily lead to subsidence and make the overall roadbed structure unstable; stones and foreign objects can easily enter the drainage pipe, causing blockage and affecting the drainage effect. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a roadbed structure based on the reuse of asphalt waste powder resources.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Design a roadbed structure based on the reuse of asphalt waste powder resources, including original soil slope and retaining wall. Two sets of reinforced concrete columns are provided between the original soil slope and retaining wall. Reinforced concrete beams are provided at the upper ends of two adjacent reinforced concrete columns in the left and right directions. Soil is filled between the reinforced concrete columns and reinforced concrete beams. The roadbed body is provided on the upper surface of the reinforced concrete columns. A first drainage ditch and a second drainage ditch are respectively provided on the left and right sides of the roadbed body. The inner wall of the first drainage ditch is coated with a first plaster layer, and the inner wall of the second drainage ditch is coated with a second plaster layer. The lower inner walls of the first plaster layer and the lower inner walls of the second plaster layer are both inclined downward from left to right. Multiple drainage pipes are connected to the side wall of the second drainage ditch. Multiple connecting pipes are provided inside the roadbed body. The drainage pipes and connecting pipes are all arranged inclined downward from left to right. The connecting pipes are connected to the first drainage ditch and the second drainage ditch. Anti-clogging devices are provided on the left and right inner walls of the first plaster layer.

[0007] Preferably, the anti-clogging device includes multiple filter plates, a first mounting groove is provided on the left inner wall of the first plaster layer, a second mounting groove is provided on the right inner wall of the first plaster layer, and each of the multiple filter plates has an extension block at its lower end. The lower end of the extension block extends into the second mounting groove, and the left side of the filter plate extends into the first mounting groove.

[0008] Preferably, the lower ends of the two sets of reinforced concrete columns are provided with reinforced concrete pads.

[0009] Preferably, the right side surface of the retaining wall is provided with multiple additional diagonal braces, and all of the additional diagonal braces are connected to the original soil slope by steel nails.

[0010] Preferably, the upper ends of the facing surfaces of two adjacent reinforced concrete columns in the left-right direction are integrally formed with additional reinforced concrete legs.

[0011] The roadbed structure based on the reuse of asphalt waste powder resources proposed in this utility model has the following advantages: This roadbed structure increases stability by setting reinforced concrete columns on both sides of the lower surface of the roadbed body and reinforced concrete beams at the top of the columns. The stress from the reinforced concrete columns and beams increases the stability of the roadbed structure, preventing subsidence even when the left side is eroded by rainwater. The anti-clogging device uses a filter plate to block stones and other debris, preventing blockages in the first drainage ditch and ensuring smooth drainage. During installation, the left side of the filter plate is first inserted into the first mounting groove, and then the insertion block is placed in the second mounting groove for fixation. During disassembly, the right side of the filter plate is lifted to detach the insertion block from the second mounting groove, and then the filter plate is moved to the right to detach the left side from the first mounting groove. Installation and disassembly are very convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an enlarged view of position A of this utility model.

[0013] In the diagram: 1. Original soil slope; 2. Retaining wall; 3. Reinforced concrete column; 4. Reinforced concrete beam; 5. Soil material; 6. Roadbed; 7. First drainage ditch; 8. Second drainage ditch; 9. First plaster layer; 10. Second plaster layer; 11. Drainage pipe; 12. Connecting pipe; 13. Filter plate; 14. First mounting groove; 15. Second mounting groove; 16. Insertion block; 17. Reinforced concrete cushion layer; 18. Additional diagonal brace; 19. Steel nail; 20. Additional reinforced concrete leg. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figure 1-2 A roadbed structure based on the reuse of asphalt waste powder resources includes an original soil slope 1 and a retaining wall 2. Two sets of reinforced concrete columns 3 are provided between the original soil slope 1 and the retaining wall 2. Reinforced concrete beams 4 are provided at the upper ends of two adjacent reinforced concrete columns 3 in the left and right directions. Soil material 5 is filled between the reinforced concrete columns 3 and the reinforced concrete beams 4. A roadbed body 6 is provided on the upper surface of the reinforced concrete columns 3. A first drainage ditch 7 and a second drainage ditch 8 are provided on the left and right sides of the roadbed body 6, respectively. The inner wall of the first drainage ditch 7 is coated with a first plaster layer 9, and the inner wall of the second drainage ditch 8 is coated with a second plaster layer 10. The lower inner walls of the first plaster layer 9 and the second plaster layer 10 are both inclined downward from left to right to facilitate drainage. Multiple drainage pipes 11 are connected to the side wall of the second drainage ditch 8. Multiple connecting pipes 12 are provided inside the roadbed body 6. The drainage pipes 11 and the connecting pipes 12 are both arranged inclined downward from left to right to facilitate drainage. The connecting pipes 12 are connected to the first drainage ditch 7 and the second drainage ditch 8. Anti-clogging devices are provided on the left and right inner walls of the first plaster layer 9. Rainwater in the first drainage ditch 7 flows into the second drainage ditch 8 through multiple connecting pipes 12, and then is discharged through multiple drain pipes 11.

[0016] The anti-clogging device includes multiple filter plates 13. A first mounting groove 14 is provided on the left inner wall of the first plaster layer 9, and a second mounting groove 15 is provided on the right inner wall of the first plaster layer 9. Each of the multiple filter plates 13 has an extension block 16 at its lower end. The lower end of the extension block 16 extends into the second mounting groove 15, and the left side of the filter plate 13 extends into the first mounting groove 14.

[0017] The two sets of reinforced concrete columns 3 are provided with reinforced concrete pads 17 at their lower ends. The reinforced concrete pads 17 make the two sets of reinforced concrete columns 3 more stable under stress.

[0018] Multiple additional diagonal braces 18 are provided on the right side surface of retaining wall 2. The additional diagonal braces 18 are made of steel plates for easy installation and fixing. All additional diagonal braces 18 are connected to the original soil slope 1 by steel nails 19. By setting up additional diagonal braces 18, the load-bearing capacity of retaining wall 2 is increased.

[0019] Each of the two adjacent reinforced concrete columns 3 in the left-right direction has an integrally formed additional reinforced concrete leg 20 on the upper part of its facing side surface. The two additional reinforced concrete legs 20 increase the load-bearing capacity of the two reinforced concrete columns 3.

[0020] In this utility model, the roadbed structure is made more stable by setting reinforced concrete columns 3 on both sides of the lower surface of the roadbed body 6 and setting reinforced concrete beams 4 on the upper end of the reinforced concrete columns 3. The reinforced concrete columns 3 and reinforced concrete beams 4 are subjected to force, which increases the stability of the roadbed structure. Even if the left side is washed by rainwater, it is not easy to sink, and the overall roadbed structure is stable. The anti-clogging device is set to block stones and foreign objects through the filter plate 13, so as to prevent the first drainage ditch 7 from being blocked and ensure smooth drainage. At the same time, when installing the filter plate 13, the left side of the filter plate 13 is first inserted into the first mounting groove 14, and then the insertion block 16 is placed in the second mounting groove 15 and fixed. When disassembling, the right side of the filter plate 13 is first lifted to detach the insertion block 16 from the second mounting groove 15, and then the filter plate 13 is moved to the right to detach the left side of the filter plate 13 from the first mounting groove 14. The installation and disassembly are very convenient.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A roadbed structure based on the reuse of asphalt waste powder resources, comprising original soil slope (1) and retaining wall (2), characterized in that, Two sets of reinforced concrete columns (3) are provided between the original soil slope (1) and the retaining wall (2). Reinforced concrete beams (4) are provided at the top of each adjacent reinforced concrete column (3) in the left-right direction. Soil (5) is filled between the reinforced concrete columns (3) and the reinforced concrete beams (4). A roadbed structure (6) is provided on the upper surface of the reinforced concrete column (3). A first drainage ditch (7) and a second drainage ditch (8) are provided on the left and right sides of the roadbed structure (6), respectively. A first plaster layer (9) is applied to the inner wall of the first drainage ditch (7). The second drainage ditch... (8) The inner wall is coated with a second plaster layer (10). The inner wall under the first plaster layer (9) and the inner wall under the second plaster layer (10) are both inclined downward from left to right. The side wall of the second drainage ditch (8) is connected to multiple drainage pipes (11). The road body (6) is provided with multiple connecting pipes (12). The drainage pipes (11) and connecting pipes (12) are both inclined downward from left to right. The connecting pipes (12) are connected to the first drainage ditch (7) and the second drainage ditch (8). The left and right inner walls of the first plaster layer (9) are provided with anti-blocking devices.

2. A roadbed structure based on the reuse of asphalt waste powder resources according to claim 1, characterized in that, The anti-clogging device includes multiple filter plates (13). A first mounting groove (14) is provided on the left inner wall of the first plaster layer (9), and a second mounting groove (15) is provided on the right inner wall of the first plaster layer (9). Each of the multiple filter plates (13) is provided with an insertion block (16) at its lower end. The lower end of the insertion block (16) extends into the second mounting groove (15), and the left side of the filter plate (13) extends into the first mounting groove (14).

3. A roadbed structure based on the reuse of asphalt waste powder resources according to claim 1, characterized in that, The two sets of reinforced concrete columns (3) are provided with a reinforced concrete pad (17) at the lower end.

4. A roadbed structure based on the reuse of asphalt waste powder resources according to claim 1, characterized in that, The retaining wall (2) has multiple additional diagonal braces (18) on its right side surface, and all of the additional diagonal braces (18) are connected to the original soil slope (1) by steel nails (19).

5. A roadbed structure based on the reuse of asphalt waste powder resources according to claim 1, characterized in that, The upper part of the opposite side surface of two adjacent reinforced concrete columns (3) in the left and right directions is integrally formed with additional reinforced concrete legs (20).

Images