Road surface structure for preventing subgrade settlement
By using anti-segregation base plate and fixed casing combined structure and concrete, anti-seepage layer, gravel layer and asphalt pavement in the pavement structure, the problems of poor paving stability and poor drainage effect under the roadbed are solved, and the stable fixation of the pavement is achieved and good drainage, avoiding settlement and safety hazards.
Patent Information
- Application Number
- CN202420641336.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-30
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-30
AI Technical Summary
The existing pavement structure that prevents subsidence settlement is poor when laid below the subsidence, cannot be effectively fixed, is prone to loosening and displaced, and has poor drainage effect, resulting in rainwater seepage and causing subsidence settlement collapse.
The anti-segregation base plate is used to fix it with a combination structure of protective slope, fixed casing, threaded rod, push block, slide chute and slide block, combined with concrete layer, anti-seepage layer, gravel layer and asphalt pavement to form a stable triangular structure, and Arc drainage channels and drainage troughs are installed on the road surface to improve drainage performance.
The road surface is stable and fixed at designated locations, avoiding deviation and displacement caused by uneven rolling pressure, improving drainage effect, preventing rainwater from seeping, extending the service life of the highway, and avoiding settlement and safety hazards.
Smart Images
Figure CN222160815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of roadbed structures, in particular to a road surface structure for preventing roadbed settlement. Background Art
[0002] The roadbed is an important part of the entire highway structure. Since the highway is an important transportation route, the paving process of the highway is particularly important. The roadbed not only needs to bear its own rock and soil weight and the gravity of the road surface, but also the weight of the vehicles on the road surface.
[0003] A pavement structure for preventing roadbed settlement with the announcement number CN 220013251 U is retrieved and includes: a roadbed structure, an anti-settlement layer laid above it, a pavement structure laid above the anti-settlement layer, and also includes: vertical struts, the bottom ends of which are fixed inside the roadbed structure, and the top ends of the vertical struts are fixed inside the pavement structure; transverse struts, three groups of which are fixed on the outer surfaces of the vertical struts, and the three groups of transverse struts are respectively located inside the roadbed structure, the anti-settlement layer and the pavement structure; a number of pressure-distributing barbs are provided, and the pressure-distributing barbs are symmetrically fixed on the top and bottom ends of the vertical struts, and the pressure-distributing barbs are also symmetrically fixed on the outer surfaces of the transverse struts; this structure effectively avoids the uneven and easy displacement and shifting of the existing road surface under rolling pressure, is beneficial to evenly distributing the rolling pressure on the road surface, and increases the service life of the road surface.
[0004] However, the above device still has some shortcomings during use. The pavement structure has poor stability when laid under the roadbed and cannot be effectively fixed. It is easy to loosen and shift between the roadbed after being subjected to pressure. At the same time, the drainage effect is poor, which easily causes rainwater to seep in and lead to roadbed settlement and collapse. Utility Model Content
[0005] In response to the shortcomings of the existing technology, the utility model provides a pavement structure that prevents roadbed settlement, which solves the problems that the pavement structure has poor stability when laid under the roadbed, cannot be effectively fixed, is easily loosened and shifted between the roadbed after being subjected to pressure, and has poor drainage effect, which easily causes rainwater to seep in and leads to roadbed settlement and collapse.
[0006] The cam is fixedly provided with a toothed plate at two ends, and a toothed plate is fixedly provided with a toothed plate at two ends, and a toothed plate is fixedly provided with a toothed plate at two ends.
[0007] Preferred technical solution 1: The bottom end of each fixed sleeve is configured to be conical, and a plurality of springs are fixedly connected between each connecting plate and the inner wall of the corresponding fixed sleeve.
[0008] This solution can better fix the anti-settling bottom plate at the designated location.
[0009] Preferred technical solution 2: A group of reinforcing rods are fixedly connected between the lower surface of each fixing rod and the upper surface of the anti-settling bottom plate, and a triangular structure is formed between each group of reinforcing rods and the connected fixing rods.
[0010] This solution can enhance the stability of the supporting structure and avoid deformation caused by pressure.
[0011] Preferred technical solution three: a concrete layer is cast on the upper surface of the anti-settlement bottom plate, an anti-seepage layer is provided on the upper surface of the concrete layer, a plurality of drainage grooves are opened on the upper surface of the anti-seepage layer, and the two ends of the plurality of drainage grooves are respectively connected to the two protective slopes, a crushed stone layer is provided on the upper surface of the crushed stone layer, and an asphalt pavement is provided on the upper surface of the crushed stone layer, and the asphalt pavement is arranged in an arc shape.
[0012] This solution can improve the drainage effect of the road surface and prevent rainwater infiltration from causing roadbed settlement.
[0013] Preferred technical solution four: a plurality of reinforcement cones are fixedly connected to the lower surface of the anti-settling bottom plate, and an array of the plurality of reinforcement cones is distributed on the lower surface of the anti-settling bottom plate.
[0014] This solution can further fix the entire structure to avoid offset and displacement.
[0015] Preferred technical solution five: Drainage channels are provided on the sides of the two protective slopes.
[0016] This solution can enhance the drainage effect of the road surface and allow rainwater to be discharged quickly.
[0017] Compared with the prior art, the present invention provides a pavement structure for preventing roadbed settlement, which has the following beneficial effects: when in use, the anti-settling base plate is placed in a prepared foundation pit, and is inserted into the ground for preliminary fixation through the reinforcing cone and the fixing sleeve, and then the threaded rod on the reinforcing sleeve is rotated to drive the threaded sleeve and the pushing block to move downward under the restriction of the slide groove and the slider, thereby driving the pushing block to push the connecting plate to move outward, thereby driving the fixing cone to extend the fixing sleeve and insert it into the ground, forming a barbed structure, so that the fixation of the entire anti-settling base plate is more stable, and then the concrete layer, anti-seepage layer, crushed stone layer and asphalt pavement layer are poured in sequence on the anti-settling base plate, and the fixing rod and the reinforcing rod are connected. The stable triangular structure makes the entire structure more stable and avoids settlement and collapse. At the same time, in rainy weather, rainwater flows into the drainage channels on both sides through the arc setting on the asphalt pavement for discharge. At the same time, part of the rainwater penetrates through the asphalt pavement and the gravel layer into the anti-seepage layer. The infiltrated rainwater can be quickly discharged through the drainage groove on the anti-seepage layer to avoid the rainwater from continuing to seep in, thereby improving the water permeability. The pavement structure can be firmly fixed at the designated location when in use, avoiding the uneven rolling pressure and easy deviation and displacement. At the same time, it has a good drainage effect to avoid rainwater penetration, so that the highway will not sink and collapse during long-term use, avoiding the occurrence of safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural diagram of the utility model;
[0019] Figure 2 This is a cross-sectional view of the fixed sleeve structure of the utility model;
[0020] Figure 3 For the utility model Figure 2 A magnified view of the structure of middle A.
[0021] In the figure: 1. Anti-settling bottom plate; 2. Protective slope; 3. Fixed rod; 4. Fixed sleeve; 5. Movable hole; 6. Fixed cone; 7. Connecting plate; 8. Threaded rod; 9. Threaded sleeve; 10. Push block; 11. Slide groove; 12. Slider; 13. Spring; 14. Reinforcement rod; 15. Concrete layer; 16. Anti-seepage layer; 17. Drainage trough; 18. Gravel layer; 19. Asphalt pavement; 20. Reinforcement cone; 21. Drainage channel. DETAILED DESCRIPTION
[0022] See also Figure 1-3 ,
[0023] The cam 6 of the embodiment of the present invention is a kind of cam 6 that is fixed on the cam 6 of embodiment 1.
[0024] Example 2: The difference between this example and Example 1 is that the bottom end of each fixed sleeve 4 is set to be conical, and a plurality of springs 13 are fixedly connected between each connecting plate 7 and the inner wall of the corresponding fixed sleeve 4, so as to better fix the anti-subsidence bottom plate 1 at the designated location.
[0025] Example 3: The difference between this example and Example 1 is that a group of reinforcing rods 14 are fixedly connected between the lower surface of each fixing rod 3 and the upper surface of the anti-settling base plate 1, and a triangular structure is formed between each group of reinforcing rods 14 and the connected fixing rods 3 to enhance the stability of the supporting structure and avoid deformation caused by pressure displacement.
[0026] Example 4: The difference between this example and Example 1 is that a concrete layer 15 is cast on the upper surface of the anti-subsidence base plate 1, an anti-seepage layer 16 is provided on the upper surface of the concrete layer 15, a plurality of drainage grooves 17 are opened on the upper surface of the anti-seepage layer 16, and the two ends of the plurality of drainage grooves 17 are respectively connected to the two protective slopes 2, a crushed stone layer 18 is provided on the upper surface of the anti-seepage layer 16, and an asphalt pavement 19 is provided on the upper surface of the crushed stone layer 18. The asphalt pavement 19 is arranged in an arc shape, which makes the drainage effect of the road surface better and prevents rainwater from seeping into the roadbed and causing subsidence.
[0027] Example 5: The difference between this example and Example 1 is that a plurality of reinforcement cones 20 are fixedly connected to the lower surface of the anti-settlement base plate 1, and an array of the plurality of reinforcement cones 20 is distributed on the lower surface of the anti-settlement base plate 1, further fixing the entire structure to avoid offset and displacement.
[0028] Example 6: The difference between this example and Example 1 is that drainage channels 21 are provided on the sides of the two protection slopes 2 to enhance the drainage effect of the road surface and enable rainwater to be discharged quickly.
[0029] In summary, the pavement structure for preventing roadbed settlement, when in use, the anti-settling base plate 1 is placed in the prepared foundation pit, and is inserted into the ground for preliminary fixation through the reinforcing cone 20 and the fixing sleeve 4, and then the threaded rod 8 on the reinforcing sleeve 4 is rotated to drive the threaded sleeve 9 and the pushing block 10 to move downward under the restriction of the slide groove 11 and the slider 12, thereby driving the pushing block 10 to push the connecting plate 7 to move outward, thereby driving the fixing cone 6 to extend out of the fixing sleeve 4 and insert into the ground, forming a barb structure, so that the fixation of the entire anti-settling base plate 1 is more stable, and then the concrete layer 15 anti-seepage layer 16 crushed stone layer 18 and asphalt pavement layer 19 are poured in sequence on the anti-settling base plate 1, and the stable connection between the fixing rod 3 and the reinforcing rod 14 is realized. The fixed triangular structure makes the entire structure more stable and avoids settlement and collapse. At the same time, in rainy weather, rainwater flows into the drainage channels 21 on both sides through the arc setting on the asphalt pavement 19 for discharge. At the same time, a part of the rainwater penetrates through the asphalt pavement 19 and the gravel layer 18 into the anti-seepage layer 16. The infiltrated rainwater can be quickly discharged through the drainage groove 17 on the anti-seepage layer 16 to avoid the rainwater from continuing to seep in, thereby improving the water permeability. The pavement structure can be firmly fixed at a designated location when in use, avoiding the uneven rolling pressure and easy deviation and displacement. At the same time, it has a good drainage effect, avoiding rainwater penetration, and thus preventing the highway from settling and collapsing during long-term use, thereby avoiding the occurrence of safety hazards.
Claims
1. A pavement structure for preventing roadbed settlement, comprising an anti-settlement bottom plate (1), characterized in that: Both sides of the anti-settling bottom plate (1) are fixedly connected to the protective slopes (2), a plurality of fixing rods (3) are fixedly connected between the two protective slopes (2), and both sides of the anti-settling bottom plate (1) are fixedly connected to a group of fixing sleeves (4), the surface of each fixing sleeve (4) is provided with four rows of movable holes (5), the interior of each movable hole (5) is movably plugged with a fixing cone (6), one end of the four rows of fixing cones (6) located inside the fixing sleeve (4) is respectively fixedly connected to a connecting plate (7), and the inner bottom wall of each fixing sleeve (4) is rotatable. A threaded rod (8) is connected, and a threaded sleeve (9) is threadedly sleeved on the surface of each threaded rod (8), and a push block (10) is fixedly connected to the lower surface of each threaded sleeve (9), and corresponding inclined surfaces are provided on the surfaces of each push block (10) and the corresponding four connecting plates (7) in movable contact, and a sliding groove (11) is provided on the inner side walls of each fixed sleeve (4), and a slider (12) is slidably connected to the interior of each sliding groove (11), and each slider (12) is fixedly connected to the corresponding threaded sleeve (9).
2. A pavement structure for preventing roadbed settlement according to claim 1, characterized in that: The bottom end of each fixed sleeve (4) is configured to be conical, and a plurality of springs (13) are fixedly connected between each connecting plate (7) and the inner wall of the corresponding fixed sleeve (4).
3. A pavement structure for preventing roadbed settlement according to claim 1, characterized in that: A group of reinforcing rods (14) is fixedly connected between the lower surface of each fixing rod (3) and the upper surface of the anti-settling bottom plate (1), and a triangular structure is formed between each group of reinforcing rods (14) and the connected fixing rod (3).
4. A pavement structure for preventing roadbed settlement according to claim 1, characterized in that: A concrete layer (15) is cast on the upper surface of the anti-settling bottom plate (1), an impermeable layer (16) is arranged on the upper surface of the concrete layer (15), a plurality of drainage grooves (17) are opened on the upper surface of the impermeable layer (16), two ends of the plurality of drainage grooves (17) are respectively connected to the two protection slopes (2), a crushed stone layer (18) is arranged on the upper surface of the impermeable layer (16), an asphalt pavement (19) is arranged on the upper surface of the crushed stone layer (18), and the asphalt pavement (19) is arranged in an arc shape.
5. A pavement structure for preventing roadbed settlement according to claim 1, characterized in that: A plurality of reinforcement cones (20) are fixedly connected to the lower surface of the anti-settling bottom plate (1), and an array of the plurality of reinforcement cones (20) is distributed on the lower surface of the anti-settling bottom plate (1).
6. A pavement structure for preventing roadbed settlement according to claim 1, characterized in that: Drainage channels (21) are provided on the sides of the two protection slopes (2).