Roadbed structure based on EPS
By using EPS plates, limit connection frames and waterproof layers in the roadbed structure, the freezing and softening problems caused by rainwater erosion are solved, and the bearing capacity and stability of the roadbed are improved.
Patent Information
- Application Number
- CN202422400817.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing roadbed structure is susceptible to rainwater erosion on rainy days, causing freezing and softening, affecting stability.
EPS material is used to add EPS plates, limit connection frames and waterproof layers inside the roadbed, and fixed them through limit grooves and connection pins to reduce the weight of the roadbed, enhance the compressive resistance, and set up a waterproof layer to prevent moisture penetration.
It improves the overall bearing capacity and stability of the roadbed, reduces the risk of foundation settlement, prevents rainwater erosion, and ensures the flatness and durability of the roadbed.
Smart Images
Figure CN223281135U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of roadbed structures, in particular to a roadbed structure based on EPS. Background Art
[0002] The roadbed is the foundation of the road structure. It is located directly beneath the road surface, bearing the traffic loads from the road surface and transferring these loads to the foundation soil layer below. Therefore, the quality and stability of the roadbed must be ensured to avoid affecting the service life and safety of the road.
[0003] During the construction of existing roadbed structures, the soil is screened, backfilled, mixed, and then compacted to achieve appropriate density and compressive strength. However, in rainy conditions, rainwater easily erodes the soil foundation. Rainwater accumulates in the roadbed, causing frost heave and softening, affecting the stability of the soil roadbed.
[0004] Therefore, in order to address the problem that the roadbed formed by compacting the soil is easily eroded by rainwater, resulting in frost heave and softening of the roadbed, which affects the stability of the roadbed, a roadbed structure based on EPS can be designed. By adding EPS materials with the characteristics of light weight, high strength, good compressive performance and water resistance inside the roadbed, the pressure on the underlying foundation can be reduced while reducing the self-weight of the roadbed, thereby improving the overall bearing capacity of the roadbed. The waterproof EPS material can reduce the impact of moisture on the stability of the roadbed, reduce the risk of foundation settlement, and improve the stability of the roadbed. Utility Model Content
[0005] In order to overcome the problem that during the construction of the roadbed structure, the soil is screened, backfilled, mixed and stirred, and then rolled to make the soil have appropriate density and compressive resistance, however, in rainy days and other environments, rainwater can easily erode the soil foundation. Rainwater accumulates in the roadbed, causing frost heave and softening of the roadbed, affecting the stability of the soil roadbed.
[0006] The technical solution of the utility model is: a roadbed structure based on EPS, including a ground base, a lower base assembly, a lower EPS board, a limiting groove, a limiting hole, a limiting connecting frame, a connecting hole, a connecting pin, a limiting connecting tooth plate, an upper EPS board, a waterproof layer, an upper base assembly and a slope protection assembly; the top surface of the ground base is provided with a lower base assembly, the top surface of the lower base assembly is provided with a lower EPS board, the side surface of the lower EPS board is provided with a limiting groove, the top surface of the lower EPS board is provided with a limiting hole, the side surface of the lower EPS board is provided with a limiting connecting frame, the top surface of the limiting connecting frame is provided with a connecting hole, the top surface of the limiting connecting frame is provided with a connecting pin, the top surface of the lower EPS board is provided with a limiting connecting tooth plate, the top surface of the limiting connecting tooth plate is provided with an upper EPS board, the top surface of the upper EPS board is provided with a waterproof layer, the top surface of the waterproof layer is provided with the base assembly, and the top surface of the ground base is provided with a slope protection assembly.
[0007] Preferably, the lower base assembly can bear the loads from the roadbed and the road surface, and can transfer these loads to deeper strata while protecting the roadbed from moisture damage. By using the lower EPS board and the upper EPS board to fill the roadbed, the dead weight of the roadbed can be significantly reduced, thereby reducing the pressure on the lower foundation. The lower EPS board and the limiting connection frame can be easily assembled and connected through the limiting groove. The lower EPS board and the limiting connection frame can be connected and fixed by inserting the connecting pin into the limiting hole and the connecting hole. The upper EPS board and the lower EPS board can be connected and fixed by the limiting connecting tooth plate. The waterproof layer can prevent moisture from the road surface from penetrating downward. The upper base assembly can bear and disperse the load from the road surface, ensuring the flatness and durability of the road surface. The slope protection assembly can provide support for both sides of the roadbed, ensure the stability of the roadbed, provide drainage performance for the roadbed, and reduce the erosion effect of rainwater on the roadbed.
[0008] Preferably, the upper base assembly includes a waterproof membrane, a lower base layer, a lower sand and gravel layer and a lower steel mesh; the top surface of the ground base layer is provided with a waterproof membrane, the top surface of the waterproof membrane is provided with a lower base layer, the top surface of the lower base layer is provided with a lower sand and gravel layer, the interior of the lower sand and gravel layer is provided with a lower steel mesh, the waterproof membrane is provided on the side of the lower base layer, and the waterproof membrane is provided on the side of the lower sand and gravel layer.
[0009] Preferably, the top surface of the lower gravel layer is provided with a lower EPS board, and multiple groups of lower EPS boards are provided, two groups of limiting grooves are provided, two groups of limiting holes are provided, and the limiting holes and limiting grooves are interconnected.
[0010] Preferably, the limiting connection frame is arranged on the top surface of the lower sand and gravel layer, the limiting connection frame is slidably connected to the limiting groove, multiple groups of connecting holes are opened, the connecting pin is arranged on the top surface of the lower EPS board, the connecting pin is slidably connected to the limiting hole, and the connecting pin is slidably connected to the connecting hole.
[0011] Preferably, the limiting connecting tooth plate is slidingly connected to the lower EPS board, the upper EPS board is arranged on the top surface of the lower EPS board, the upper EPS board is slidingly connected to the limiting connecting tooth plate, and the waterproof layer is arranged on the bottom surface of the waterproof membrane.
[0012] Preferably, the upper base assembly includes an upper sand and gravel layer, an upper steel mesh and an upper base layer; the top surface of the waterproof membrane is provided with an upper sand and gravel layer, the interior of the upper sand and gravel layer is provided with an upper steel mesh, and the top surface of the upper sand and gravel layer is provided with an upper base layer.
[0013] Preferably, the slope protection assembly includes a shoulder slope protection, a drainage ditch, a drainage cover and a drainage hole; the top surface of the ground base is provided with a shoulder slope protection, and there are two groups of shoulder slope protection, the shoulder slope protection is provided on the side of the waterproof membrane, and the shoulder slope protection is provided on the side of the upper gravel layer. The top surface of the shoulder slope protection is provided with a drainage ditch, the top surface of the shoulder slope protection is provided with a drainage cover, and there are multiple groups of drainage covers. The top surface of the drainage cover is provided with drainage holes, and there are multiple groups of drainage holes.
[0014] Beneficial effects of the utility model:
[0015] 1. The limiting connection frame can provide limiting support for the lower EPS board. The limiting groove is used to facilitate the engagement and connection of the lower EPS board with the limiting connection frame. The connecting pins are inserted into the limiting holes and the connection holes to connect and fix the lower EPS board with the limiting connection frame, ensuring a tight connection between the lower EPS boards. By laying the lower EPS board inside the roadbed, the deadweight of the entire roadbed can be reduced, thereby reducing the pressure on the foundation below.
[0016] 2. Insert the limiting teeth at the bottom of the limiting connection tooth plate into the lower EPS board to provide limiting support for the limiting connection tooth plate, and then align the upper EPS board with the limiting connection tooth plate and insert it to fit the upper EPS board and the lower EPS board together. The high strength and good compressive resistance of the upper EPS board itself can improve the overall bearing capacity of the roadbed. The waterproof layer can further prevent moisture from the road surface from penetrating into the interior, protect the lower foundation from direct damage by moisture and traffic loads, and improve the overall stability of the roadbed. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 What is shown is a schematic diagram of the three-dimensional structure of a roadbed structure based on EPS of the present utility model;
[0018] Figure 2 Shown is a schematic diagram of the three-dimensional structure of the base assembly of the EPS-based roadbed structure of the present utility model;
[0019] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the first structure of the EPS-based roadbed structure filling layer of the utility model;
[0020] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the second structure of the EPS-based roadbed structure filling layer of the utility model;
[0021] Explanation of the accompanying reference numerals: 1. Ground base layer; 201. Waterproof membrane; 202. Lower base layer; 203. Lower gravel layer; 204. Lower steel mesh; 31. Lower EPS board; 32. Limiting groove; 33. Limiting hole; 41. Limiting connection frame; 42. Connecting hole; 43. Connecting pin; 51. Limiting connecting tooth plate; 52. Upper EPS board; 53. Waterproof layer; 601. Upper gravel layer; 602. Upper steel mesh; 603. Upper base layer; 701. Shoulder slope protection; 702. Drainage trough; 703. Drainage cover; 704. Drainage hole. DETAILED DESCRIPTION
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] See also Figures 1-4The utility model provides an embodiment: a roadbed structure based on EPS, including a ground base 1, a lower base assembly, a lower EPS board 31, a limiting groove 32, a limiting hole 33, a limiting connection frame 41, a connecting hole 42, a connecting pin 43, a limiting connection tooth plate 51, an upper EPS board 52, a waterproof layer 53, an upper base assembly and a slope protection assembly; the top surface of the ground base 1 is provided with a lower base assembly, the top surface of the lower base assembly is provided with a lower EPS board 31, and the side surface of the lower EPS board 31 is provided with a limited The top surface of the lower EPS board 31 is provided with a limiting hole 33, the side surface of the lower EPS board 31 is provided with a limiting connection frame 41, the top surface of the limiting connection frame 41 is provided with a connection hole 42, the top surface of the limiting connection frame 41 is provided with a connecting pin 43, the top surface of the lower EPS board 31 is provided with a limiting connection tooth plate 51, the top surface of the limiting connection tooth plate 51 is provided with an upper EPS board 52, the top surface of the upper EPS board 52 is provided with a waterproof layer 53, the top surface of the waterproof layer 53 is provided with a base assembly, the top of the ground base layer 1 The surface is provided with a slope protection assembly. The lower base assembly can bear the loads from the roadbed and the road surface. While protecting the roadbed from moisture damage, it can transfer these loads to deeper strata. By using the lower EPS board 31 and the upper EPS board 52 to fill the roadbed, the dead weight of the roadbed can be significantly reduced, thereby reducing the pressure on the lower foundation. The lower EPS board 31 is conveniently assembled and connected with the limiting connection frame 41 through the limiting groove 32. The lower EPS board 31 and the limiting connection frame 41 can be connected and fixed by inserting the connecting pin 43 into the limiting hole 33 and the connecting hole 42. The upper EPS board 52 and the lower EPS board 31 can be connected and fixed by using the limiting connection tooth plate 51. The waterproof layer 53 can prevent moisture from the road surface from penetrating downward. The upper base assembly can bear and disperse the load from the road surface, ensure the flatness and durability of the road surface, and the slope protection assembly can provide support for both sides of the roadbed, ensure the stability of the roadbed, provide drainage performance for the roadbed, and reduce the erosion effect of rainwater on the roadbed.
[0024] See also Figures 1-4203 , the lower base layer 203 is provided with a lower reinforcing mesh 204, and the lower base layer 203 is provided with a lower reinforcing mesh 204. The waterproof membrane 201 is provided on the side of the lower base layer 202, and the waterproof membrane 201 is provided on the side of the lower base layer 203. The waterproof membrane 201 is provided on the side of the lower sand and gravel layer 203. The lower base layer 202 and the lower sand and gravel layer 203 are isolated from the ground base layer 1 by the waterproof membrane 201 to prevent the moisture inside the ground base layer 1 from penetrating into the roadbed. The lower sand and gravel layer 203 and the lower reinforcing mesh 204 are used to increase the strength of the lower base layer 202, thereby improving the bearing capacity and stability of the lower base layer 202. The top surface of the lower sand and gravel layer 203 is provided with a lower EPS board 31, and the lower EPS board 31 is provided with multiple groups of limit There are two groups of grooves 32 and two groups of limiting holes 33. The limiting holes 33 and the limiting grooves 32 are interconnected. By laying the lower EPS board 31 inside the roadbed, it is easy to reduce the deadweight of the entire roadbed, thereby reducing the pressure on the lower base layer 202. The limiting connecting frame 41 is arranged on the top surface of the lower gravel layer 203. The limiting connecting frame 41 is slidably connected to the limiting grooves 32. There are multiple groups of connecting holes 42. The connecting pins 43 are arranged on the top surface of the lower EPS board 31. The connecting pins 43 are slidably connected to the limiting holes 33. The connecting pins 43 are slidably connected to the connecting holes 42. By inserting the limiting connecting frame 41 into the lower gravel layer 203, the lower EPS board 31 is provided with limiting support. The limiting grooves 32 are used to facilitate the engagement and connection of the lower EPS board 31 with the limiting connecting frame 41. By inserting the connecting pins 43 into the limiting holes 33 and the connecting holes 42, the lower EPS board 31 is connected and fixed to the limiting connecting frame 41.
[0025] See also Figures 1-4In this embodiment, the limiting connecting tooth plate 51 is slidably connected to the lower EPS board 31, the upper EPS board 52 is arranged on the top surface of the lower EPS board 31, the upper EPS board 52 is slidably connected to the limiting connecting tooth plate 51, and the waterproof layer 53 is arranged on the bottom surface of the waterproof membrane 201. The bottom limiting teeth of the limiting connecting tooth plate 51 are inserted into the lower EPS board 31 to provide limiting support for the limiting connecting tooth plate 51, and then the upper EPS board 52 is aligned with the limiting connecting tooth plate 51 and inserted into the lower EPS board 31 to fit together. 2 The high strength and good compressive resistance of the waterproof layer 53 can improve the bearing capacity of the roadbed as a whole. The waterproof layer 53 can further prevent the moisture of the road surface from penetrating into the interior, protect the lower base layer 202 and the lower gravel layer 203 from direct damage by moisture and traffic load, and improve the overall stability of the roadbed. The upper base assembly includes an upper gravel layer 601, an upper steel mesh 602 and an upper base layer 603; the upper gravel layer 601 is provided on the top surface of the waterproof membrane 201, the upper steel mesh 602 is provided inside the upper gravel layer 601, and the upper gravel layer 601 is provided on the top surface of the waterproof membrane 201. The surface is provided with an upper base layer 603, and the upper gravel layer 601 and the upper steel mesh 602 are used to provide support for the upper base layer 603, thereby helping the upper base layer 603 to bear and disperse the load from the road surface, ensuring the flatness and durability of the road surface. The slope protection components include shoulder slope protection 701, drainage groove 702, drainage cover 703 and drainage hole 704; the top surface of the ground base layer 1 is provided with shoulder slope protection 701, and the shoulder slope protection 701 is provided with two groups. The shoulder slope protection 701 is provided on the side of the waterproof membrane 201, and the shoulder slope protection 701 is provided on the upper gravel layer. On the side of 601, a drainage ditch 702 is provided on the top surface of the shoulder slope protection 701, and a drainage cover 703 is provided on the top surface of the shoulder slope protection 701. There are multiple groups of drainage covers 703. There are drainage holes 704 on the top surface of the drainage cover 703. There are multiple groups of drainage holes 704. The shoulder slope protection 701 is used to provide support and protection for the entire roadbed to ensure the stability of the roadbed. While intercepting impurities such as branches, the drainage holes 704 on the drainage cover 703 will not affect the flow of rainwater into the drainage ditch 702 to be discharged, thereby reducing the erosion effect of rainwater on the roadbed.
[0026] During operation, the waterproof membrane 201 is used to isolate the lower base layer 202 and the lower gravel layer 203 from the ground base layer 1 to prevent moisture inside the ground base layer 1 from penetrating into the roadbed. The lower gravel layer 203 and the lower steel mesh 204 are used to increase the strength of the lower base layer 202, thereby improving the bearing capacity and stability of the lower base layer 202.
[0027] By inserting the limiting connection frame 41 into the lower gravel layer 203, a limiting support is provided for the lower EPS board 31. The limiting groove 32 is used to facilitate the engagement and connection between the lower EPS board 31 and the limiting connection frame 41. Then, by inserting the connecting pin 43 into the limiting hole 33 and the connecting hole 42, the lower EPS board 31 and the limiting connection frame 41 are connected and fixed. By laying the lower EPS board 31 inside the roadbed, the deadweight of the entire roadbed is reduced, thereby reducing the pressure on the lower base layer 202.
[0028] By inserting the bottom limiting teeth of the limiting connecting tooth plate 51 into the lower EPS board 31 to provide limiting support for the limiting connecting tooth plate 51, and then aligning the upper EPS board 52 with the limiting connecting tooth plate 51 and inserting it to fit the lower EPS board 31, the high strength and good compressive resistance of the upper EPS board 52 can be used to improve the overall bearing capacity of the roadbed. The waterproof layer 53 can further prevent moisture from penetrating into the interior of the road surface, protect the lower base layer 202 and the lower gravel layer 203 from direct damage by moisture and traffic load, and improve the overall stability of the roadbed.
[0029] The upper gravel layer 601 and the upper steel mesh 602 provide support for the upper base layer 603, thereby helping the upper base layer 603 to bear and distribute the load from the road surface, ensuring the smoothness and durability of the road surface;
[0030] The shoulder slope protection 701 is used to provide support and protection for the entire roadbed to ensure the stability of the roadbed. The drainage holes 704 on the drainage cover 703 intercept impurities such as branches while not affecting the flow of rainwater into the drainage trough 702 for drainage, thereby reducing the erosion effect of rainwater on the roadbed.
[0031] Through the above steps, the lower base assembly is used to bear the loads from the roadbed and the road surface, and these loads are transferred to deeper strata while protecting the roadbed from moisture damage. The roadbed is filled with the lower EPS board 31 and the upper EPS board 52 to reduce the dead weight of the roadbed, thereby reducing the pressure on the lower foundation. The limiting groove 32 is used to facilitate the assembly and connection of the lower EPS board 31 with the limiting connection frame 41. The lower EPS board 31 is connected and fixed to the limiting connection frame 41 by inserting the connecting pin 43 into the limiting hole 33 and the connecting hole 42. The upper EPS board 52 is connected and fixed to the lower EPS board 31 by the limiting connection tooth plate 51. The waterproof layer 53 is used to prevent moisture from the road surface from penetrating downward. The upper base assembly is used to bear and disperse the load from the road surface to ensure the flatness and durability of the road surface. The slope protection assembly provides support for both sides of the roadbed to ensure the stability of the roadbed, provide drainage performance for the roadbed, and reduce the erosion effect of rainwater on the roadbed.
[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.
Claims
1. A roadbed structure based on EPS, comprising a ground base (1); characterized in that: The invention also comprises a lower base assembly, a lower EPS board (31), a limiting groove (32), a limiting hole (33), a limiting connection frame (41), a connection hole (42), a connecting pin (43), a limiting connection tooth plate (51), an upper EPS board (52), a waterproof layer (53), an upper base assembly and a slope protection assembly; the top surface of the ground base (1) is provided with a lower base assembly, the top surface of the lower base assembly is provided with a lower EPS board (31), a side surface of the lower EPS board (31) is provided with a limiting groove (32), and the top surface of the lower EPS board (31) is provided with a limiting hole ( 33), a limited connection frame (41) is provided on the side of the lower EPS board (31), a connection hole (42) is provided on the top surface of the limited connection frame (41), a connection pin (43) is provided on the top surface of the limited connection frame (41), a limited connection tooth plate (51) is provided on the top surface of the lower EPS board (31), an upper EPS board (52) is provided on the top surface of the limited connection tooth plate (51), a waterproof layer (53) is provided on the top surface of the upper EPS board (52), a base assembly is provided on the top surface of the waterproof layer (53), and a slope protection assembly is provided on the top surface of the ground base (1).
2. The EPS-based roadbed structure according to claim 1, characterized in that: The upper base component comprises a waterproof membrane (201), a lower base layer (202), a lower gravel layer (203) and a lower steel mesh (204); the top surface of the ground base layer (1) is provided with the waterproof membrane (201), the top surface of the waterproof membrane (201) is provided with the lower base layer (202), the top surface of the lower base layer (202) is provided with the lower gravel layer (203), the interior of the lower gravel layer (203) is provided with the lower steel mesh (204), the waterproof membrane (201) is provided on the side of the lower base layer (202), and the waterproof membrane (201) is provided on the side of the lower gravel layer (203).
3. The EPS-based roadbed structure according to claim 2, characterized in that: The top surface of the lower gravel layer (203) is provided with a lower EPS board (31), and the lower EPS board (31) is provided with multiple groups, two groups of limiting grooves (32) are provided, and two groups of limiting holes (33) are provided, and the limiting holes (33) and the limiting grooves (32) are interconnected.
4. The EPS-based roadbed structure according to claim 3, characterized in that: The limiting connection frame (41) is arranged on the top surface of the lower sandstone layer (203), the limiting connection frame (41) is slidably connected to the limiting groove (32), multiple groups of connection holes (42) are provided, the connecting pin (43) is arranged on the top surface of the lower EPS board (31), the connecting pin (43) is slidably connected to the limiting hole (33), and the connecting pin (43) is slidably connected to the connection hole (42).
5. The EPS-based roadbed structure according to claim 4, characterized in that: The limiting connecting tooth plate (51) is slidably connected to the lower EPS board (31), the upper EPS board (52) is arranged on the top surface of the lower EPS board (31), the upper EPS board (52) is slidably connected to the limiting connecting tooth plate (51), and the waterproof layer (53) is arranged on the bottom surface of the waterproof membrane (201).
6. The EPS-based roadbed structure according to claim 5, characterized in that: The upper base assembly comprises an upper sand and gravel layer (601), an upper steel mesh (602) and an upper base layer (603); the upper sand and gravel layer (601) is provided on the top surface of the waterproof membrane (201), the upper steel mesh (602) is provided inside the upper sand and gravel layer (601), and the upper base layer (603) is provided on the top surface of the upper sand and gravel layer (601).
7. The EPS-based roadbed structure according to claim 5, characterized in that: The slope protection component comprises a shoulder slope protection (701), a drainage groove (702), a drainage cover (703) and a drainage hole (704); the top surface of the ground base (1) is provided with a shoulder slope protection (701), the shoulder slope protection (701) is provided with two groups, the shoulder slope protection (701) is provided on the side of the waterproof membrane (201), the shoulder slope protection (701) is provided on the side of the upper gravel layer (601), the top surface of the shoulder slope protection (701) is provided with a drainage groove (702), the top surface of the shoulder slope protection (701) is provided with a drainage cover (703), the drainage cover (703) is provided with multiple groups, the top surface of the drainage cover (703) is provided with drainage holes (704), and the drainage holes (704) are provided with multiple groups.