A widened spliced roadbed structure with strong structural stability
By employing multi-layered connection and reinforcement methods in the roadbed structure, including carbon fiber reinforcement blocks and geogrid rubber granules, the problem of unstable connection in existing roadbed structures has been solved, achieving higher stability and service life, reducing vehicle impact, and improving the overall performance of the road.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ROAD & BRIDGE CONSTR
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-14
AI Technical Summary
Existing roadbed structures mostly use spring connections. Springs are prone to elastic decay and fatigue fracture during long-term use, resulting in unstable connections that affect the connection between new and old roadbeds. Furthermore, they are not very stable when dealing with complex foundation deformation and vehicle loads.
The system employs a first connecting component, a second connecting component, a limiting component, and a reinforcing component. The first and second reinforcing blocks, made of carbon fiber composite materials, enhance the structural strength of the top and bottom of the new roadbed. Combined with the limiting plate and the filling of rubber particles within the geogrid mesh, a multi-layer connection and reinforcement method is formed to improve the overall stability of the roadbed.
It enhances the stability and reliability of the roadbed structure, avoids the defects of spring connections, better adapts to various usage environments, extends the service life of roads, reduces the impact of vehicles on the roadbed, and improves driving comfort and safety.
Smart Images

Figure CN224494777U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roadbed structure, specifically a widened spliced roadbed structure with strong structural stability. Background Technology
[0002] With the development of my country's economy, the transportation industry is also developing rapidly. As an important part of transportation, the volume of road transport is gradually increasing. With the development of freight, the road surface also needs to be expanded. The existing roadbed widening and splicing structure is relatively simple. The widened part of the road is often used as the edge of the road surface. When vehicles are driving on it, they are generally subjected to force on one side. If the splicing is not good, it may cause the edge of the road surface to collapse outward, which will damage the bottom of the roadbed.
[0003] Furthermore, the application document with publication number CN220619648U mentions a roadbed widening and splicing structure. This application connects the old roadbed with a groove in the old roadbed and a connector in the new roadbed, allowing the old and new roadbeds to be spliced together. The pressing plate and the inclined surface at one end of the sliding rod work together to press the pressing plate downwards, thereby pushing the sliding rod to move. The sliding rod then pushes the trapezoidal plate to move. Since the surface of the trapezoidal block matches the groove in the inner wall of the locking plate, when the trapezoidal block moves, it pushes the locking block outwards, causing the locking block to engage with the slot in the old roadbed, thus increasing the connection between the new and old roadbeds. The existing roadbed structure is designed to prevent unilateral stress on the new roadbed. Poor splicing could cause the road surface edge to collapse outwards, damaging the bottom of the roadbed. However, it still has certain defects that need to be optimized. The specific defects are as follows: The existing roadbed structure mostly uses spring connections. Springs are prone to elastic decay and fatigue fracture during long-term use, resulting in unstable connections and affecting the connection effect between the new and old roadbeds. At the same time, the connection between the new and old roadbeds is achieved only through components such as compression plates, sliding rods, trapezoidal plates and clamps. The structure is relatively simple and may not be able to provide sufficient resistance when dealing with complex foundation deformation and vehicle loads, resulting in poor overall stability.
[0004] Therefore, there is an urgent need to design a widened splicing roadbed structure that can solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a widened spliced roadbed structure with strong structural stability, in order to solve the problem that existing roadbed structures mostly use spring connections, and springs are prone to elastic decay and fatigue fracture during long-term use, resulting in unstable connections and affecting the connection effect between new and old roadbeds.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A widened spliced roadbed structure with strong structural stability includes a new roadbed, a first connecting component disposed inside the top of the new roadbed, an old roadbed component disposed on the side of the new roadbed, and a second connecting component disposed inside the bottom of the new roadbed. A limiting component is provided on one side of the second connecting component, and a triangular flow groove is provided on the new roadbed. The triangular flow groove is connected to a guide plate.
[0008] Furthermore, the first connecting component includes three sets of receiving cavities disposed inside the top of the new roadbed, the top of each receiving cavity having a fixing frame along its circumference, and the top of each receiving cavity having symmetrical mounting grooves.
[0009] The three sets of accommodating cavities are provided with a first reinforcing block inside. The top of the first reinforcing block is provided with a first connecting plate, and the bottom of the accommodating cavity is provided with a first threaded mounting hole.
[0010] Through the above technical solution, the cavity provides installation space for the first reinforcing block, which serves to accommodate and protect the internal components. The first reinforcing block is set inside the cavity to enhance the structural strength of the top of the new roadbed, improve its load-bearing capacity, and resist the stress generated by vehicle loads.
[0011] Furthermore, the second connecting component includes an installation cavity disposed inside the new roadbed, a second reinforcing block disposed inside the installation cavity, a plurality of sliders disposed at the bottom end of the second reinforcing block, and a plurality of grooves disposed on the bottom surface of the installation cavity;
[0012] One side of the mounting cavity is provided with a second threaded mounting hole. The mounting cavity is used to fix the mounting cavity to other structures by bolts or screws, thereby enhancing the overall connectivity of the structure.
[0013] Through the above technical solution, the mounting cavity provides installation space for the second reinforcing block and serves as the installation base for the limiting component, enabling connection and collaborative work with other parts of the new roadbed. The second reinforcing block is set inside the mounting cavity, enhancing the structural strength of the bottom end of the new roadbed, improving its resistance to deformation, and ensuring the stability of the roadbed. The slider reduces frictional resistance, making the installation and adjustment of the second reinforcing block more convenient and faster.
[0014] Furthermore, the limiting component includes a limiting plate, on which a plurality of screw holes are provided at equal intervals;
[0015] The limiting plate has symmetrically arranged hinge seats on the side away from the second connecting component. The hinge seats are connected to the rotating rod. One end of the rotating rod has a fixed shaft inside. The fixed shaft is connected to the limiting block. The limiting block has a limiting hole through it. When a limiting operation is required, simply rotate the rotating rod to adjust the limiting block to the appropriate position. Insert the limiting pin or the plug through the limiting hole to quickly complete the limiting operation and perform secondary limiting on the position of the limiting plate. When disassembling, pull out the limiting pin and rotate the rotating rod to make the limiting block leave the limiting position.
[0016] Through the above technical solution, the limiting plate, as the main part of the limiting component, is connected to other structures through screw holes, which plays the role of limiting the movement range of the component. The screw holes provide multiple connection points, making the connection of the limiting plate more firm and reliable, and enhancing the limiting effect.
[0017] Furthermore, the old roadbed component includes several adapting holes and groove cross sections. The groove cross sections are L-shaped, and the surface of the groove cross sections is filled with a mixture of sand and cement, resulting in a smooth surface that is compatible with the connection part of the new roadbed.
[0018] Furthermore, the top of the new roadbed is provided with a reinforcement component, which includes several geogrids. The geogrids are interwoven to form a grid structure, and each grid is filled with rubber particles. The first reinforcement block and the second reinforcement block are block structures made of carbon fiber composite material.
[0019] Through the above technical solutions, the reinforcement components can effectively constrain the deformation of the new roadbed, improve stability, enhance the bearing capacity of the roadbed, and extend the service life of the road. The rubber particles filled in the grid formed by the geogrid play a role in buffering and shock absorption, reducing the impact of vehicle traffic on the roadbed.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] This invention, through the design of a widened spliced roadbed structure with strong structural stability, achieves the following effects: 1. This invention employs multiple connection and reinforcement methods, such as a first connecting component, a second connecting component, a limiting component, and a reinforcement component, which enhance the stability and reliability of the roadbed structure from different aspects, avoiding the problems caused by spring connections; 2. This invention, by setting a first reinforcement block and a second reinforcement block, respectively enhances the structural strength of the top and bottom ends of the new roadbed. Simultaneously, in conjunction with the limiting component and the reinforcement component, it improves the overall stability of the roadbed from multiple angles, enabling it to better adapt to various usage environments; 3. In the reinforcement component of this invention, rubber particles are filled within the geogrid mesh, effectively reducing the impact of vehicle traffic on the roadbed, protecting the roadbed structure, and extending the road's service life. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall planar structure of this utility model;
[0023] Figure 2 This is a three-dimensional structural diagram of the overall composition of the new roadbed structure of this utility model;
[0024] Figure 3 This is an enlarged schematic diagram of point A of the present invention, showing the specific location of the cavity.
[0025] In the diagram: 1. New roadbed; 101. Triangular flow channel; 102. Guide plate; 2. First connecting assembly; 201. Receiving cavity; 202. Fixing frame; 203. Mounting groove; 204. First reinforcing block; 205. First connecting plate; 206. First threaded mounting hole; 3. Second connecting assembly; 301. Mounting cavity; 302. Second reinforcing block; 303. Slider; 304. Slide groove; 305. Second threaded mounting hole; 4. Limiting assembly; 401. Limiting plate; 402. Screw hole; 403. Hinge seat; 404. Rotating rod; 405. Fixed shaft; 406. Limiting block; 407. Limiting hole; 5. Reinforcing assembly; 6. Old roadbed assembly; 601. Adaptor hole; 602. Groove cross section. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.
[0028] Please see Figure 1-3This embodiment provides a widened and spliced roadbed structure with strong structural stability, including a new roadbed 1, a first connecting component 2 disposed inside the top of the new roadbed 1, an old roadbed component 6 disposed on the side of the new roadbed 1, and a second connecting component 3 disposed inside the bottom of the new roadbed 1. A limiting component 4 is provided on one side of the second connecting component 3. A triangular flow channel 101 is provided on the new roadbed 1, and the triangular flow channel 101 is connected to a guide plate 102. The new roadbed serves as the core load-bearing body of the entire widened and spliced roadbed structure. The triangular flow channel 101 on it, in conjunction with the guide plate 102, can quickly and effectively guide water flow under weather conditions such as rainfall, preventing water accumulation from eroding and damaging the roadbed. The first connecting component 2 is provided inside the top of the new roadbed. Three sets of accommodating cavities provide installation space for the first reinforcing block 204. The first reinforcing block 204 enhances the structural strength of the top of the new roadbed 1, effectively resists the huge stress generated by vehicle loads, and improves the bearing capacity of the roadbed. The second connecting component 3 enhances the structural strength of the bottom of the new roadbed, effectively resists the influence of foundation deformation on the roadbed, and ensures the overall stability of the roadbed. The limiting component 4 achieves a firm connection with other structures through several equally spaced screw holes 402, limiting the movement range of the components. The old roadbed component 6, through cooperation with the connecting component of the new roadbed 1, achieves a tight and stable connection between the new and old roadbeds, making the two form a whole and jointly bear the vehicle load. The reinforcing component 5 constrains the deformation of the new roadbed and reduces the impact force of vehicle driving on the roadbed.
[0029] like Figure 1 and Figure 2 and Figure 3 As shown, the first connecting component 2 includes three sets of receiving cavities 201 disposed inside the top of the new roadbed 1. A fixing frame 202 is provided along the circumference of the top of each receiving cavity 201, and mounting grooves 203 are symmetrically provided at the top of each receiving cavity 201. A first reinforcing block 204 is provided inside each of the three sets of receiving cavities 201. A connecting plate 205 is provided at the top of the first reinforcing block 204, and a first threaded mounting hole 206 is provided at the bottom of each receiving cavity 201. By providing three sets of receiving cavities 201 inside the top of the new roadbed 1, the first connecting component 2 provides a safe and stable installation space for the first reinforcing block 204, thus playing a good role in containing and protecting it. The design of the fixing frame 202 and the mounting grooves 203 not only enhances the structural strength of the receiving cavity 201 but also provides precise positioning and reliable connection points for the installation of other related components. The first reinforcing block is made of carbon fiber composite material, which greatly enhances the structural strength of the top of the new roadbed, effectively resists the huge stress generated by vehicle loads, improves the bearing capacity of the roadbed, and ensures that the road does not undergo excessive deformation or damage during long-term use.
[0030] like Figure 1 and Figure 2 and Figure 3As shown, the second connecting component 3 includes an installation cavity 301 located inside the new roadbed 1. Inside the installation cavity 301 is a second reinforcing block 302. The bottom end of the second reinforcing block 302 has several sliders 303. The bottom surface of the installation cavity 301 has several grooves 304. One side of the installation cavity 301 has a second threaded mounting hole 305. The second connecting component 3 provides a suitable installation environment for the second reinforcing block 302 and serves as the installation base for the limiting component, achieving a tight connection and coordinated operation with other parts of the new roadbed. The second reinforcing block also uses carbon fiber composite material, enhancing the structural strength of the bottom end of the new roadbed, effectively resisting the impact of foundation deformation on the roadbed, and ensuring the overall stability of the roadbed. The cooperative design of the sliders 303 and grooves 304 reduces frictional resistance during the installation and adjustment of the second reinforcing block, making operation more convenient and faster, and improving construction efficiency. The second threaded mounting hole 305 securely fixes the installation cavity 301 to other structures using bolts or screws, further enhancing the overall connectivity of the structure.
[0031] like Figure 1 and Figure 2 As shown, the limiting assembly 4 includes a limiting plate 401 with a plurality of equally spaced screw holes 402. A hinge seat 403 is symmetrically provided on the side of the limiting plate 401 away from the second connecting assembly 3. The hinge seat 403 is connected to a rotating rod 404. A fixed shaft 405 is provided inside one end of the rotating rod 404. The fixed shaft 405 is connected to a limiting block 406. A limiting hole 407 is provided through the limiting block 406. In the limiting assembly 4, the limiting plate 401 serves as the main body and is firmly connected to other structures through the equally spaced screw holes 402, thus limiting the movement of the components. The hinge seat 403, rotating rod 404, fixed shaft 405, limiting block 406, and limiting hole 407 together constitute a flexible and precise limiting system. When a limiting operation is required, simply rotate the rotating rod 404 to adjust the limiting block 406 to the appropriate position, and insert the limiting pin or insert rod to quickly complete the limiting operation. The position of the limiting plate 401 is then limited a second time to ensure that the components move stably within the specified range. Disassembly is also very convenient; simply pull out the limiting pin and rotate the rotating rod to move the limiting block away from the limiting position. This greatly improves the efficiency of construction and maintenance.
[0032] like Figure 1As shown, the old roadbed component 6 includes several adapter holes 601 and a groove cross-section 602. The groove cross-section 602 is L-shaped, and its surface is filled with a mixture of sand and cement, making it flat and compatible with the connection part of the new roadbed 1. The several adapter holes 601 in the old roadbed component provide key connection points for the connection between the old and new roadbeds. By cooperating with the connection parts of the new roadbed 1, a tight and stable connection between the old and new roadbeds is achieved, making them form a whole and jointly bear the vehicle load. The L-shaped groove cross-section 602, which is filled with a mixture of sand and cement, not only increases the contact area between the old and new roadbeds and improves the friction of the connection, but also effectively adapts to the slight differences between the old and new roadbeds, ensuring that the connection part is flat and firm, further enhancing the overall stability and load-bearing capacity of the road.
[0033] like Figure 1 and Figure 3 As shown, a reinforcement component 5 is provided inside the top of the new roadbed 1. The reinforcement component 5 includes several geogrids, which are interwoven to form a grid structure. Each grid is filled with rubber particles. The first reinforcement block 204 and the second reinforcement block 302 are block structures made of carbon fiber composite material. The reinforcement component 5 is a grid structure formed by several interwoven geogrids, which can effectively restrain the deformation of the new roadbed and improve its stability. The rubber particles filled in each grid play a role in buffering and shock absorption, reducing the impact of vehicle traffic on the roadbed, reducing the vibration and noise of the roadbed, and improving the comfort and safety of driving.
[0034] The workflow of this utility model is as follows: When using this type of widened and spliced roadbed structure with strong structural stability, firstly, during the road widening and splicing construction, the new roadbed 1 is placed in a predetermined position. The triangular flow channel 101 on it cooperates with the guide plate 102 to prepare for subsequent drainage. Then, the first threaded mounting hole 206, the second threaded mounting hole 305, and the adapter hole 601 are connected by T-shaped embedded bolts, respectively, to complete the positional definition between the new roadbed 1 and the old roadbed. At this time, the overall roadbed has been widened.
[0035] Then, the first connecting component 2 is installed, and the first reinforcing block 204 is placed into the three sets of receiving cavities 201 inside the top of the new roadbed 1. The first connecting plate 205 fits into the fixing frame 202, and the position is fixed in the mounting groove 203 using embedded hexagonal bolts, thus completing the installation of the first connecting component 2.
[0036] Next, the second connecting component 3 is processed. The second reinforcing block 302 is placed into the mounting cavity 301 inside the bottom end of the new roadbed 1. The position of the second reinforcing block 302 is easily and quickly adjusted by using the slider 303 and the groove 304. Then, the limiting plate 401 is attached to the second reinforcing block 302. Finally, the positional relationship between the limiting plate 401 and the second reinforcing block 302, and between the limiting plate 401 and the new roadbed 1, is fixed by using embedded hexagonal bolts, thus completing the closure of the mounting cavity 301.
[0037] Finally, rotating the rotating rod 404, through the hinge seat 403 and the fixed shaft 405, adjusts the limiting block 406 to the appropriate position. Inserting the limiting pin or the insert rod through the limiting hole 407 completes the secondary limiting of the limiting plate 401, achieving a tight and stable connection between the new and old roadbeds.
[0038] Meanwhile, the reinforcement component 5 inside the top of the new roadbed 1 constrains the deformation of the new roadbed and reduces the impact force of vehicle driving, thus completing the construction of the entire widened spliced roadbed structure.
[0039] Although embodiments of the present invention have been shown and described, 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 widened spliced roadbed structure with strong structural stability, characterized in that: It includes a new roadbed (1), a first connecting component (2) disposed inside the top of the new roadbed (1), an old roadbed component (6) disposed on the side of the new roadbed (1), and a second connecting component (3) disposed inside the bottom of the new roadbed (1). A limiting component (4) is provided on one side of the second connecting component (3). A triangular flow groove (101) is provided on the new roadbed (1). The triangular flow groove (101) is connected to a guide plate (102).
2. The widened spliced roadbed structure with strong structural stability according to claim 1, characterized in that: The first connecting component (2) includes three sets of receiving cavities (201) disposed inside the top of the new roadbed (1). The top of the receiving cavity (201) is provided with a fixing frame (202) along its circumference, and the top of the receiving cavity (201) is symmetrically provided with mounting grooves (203). The three sets of accommodating cavities (201) are provided with a first reinforcing block (204) inside. The top of the first reinforcing block (204) is provided with a connecting first connecting plate (205), and the bottom of the accommodating cavity (201) is provided with a first threaded mounting hole (206).
3. The widened spliced roadbed structure with strong structural stability according to claim 2, characterized in that: The second connecting component (3) includes an installation cavity (301) provided inside the new roadbed (1), a second reinforcing block (302) provided inside the installation cavity (301), a plurality of sliders (303) provided at the bottom end of the second reinforcing block (302), and a plurality of grooves (304) provided on the bottom surface of the installation cavity (301). The mounting cavity (301) has a second threaded mounting hole (305) on one side.
4. The widened spliced roadbed structure with strong structural stability according to claim 1, characterized in that: The limiting component (4) includes a limiting plate (401), on which a plurality of screw holes (402) are provided at equal intervals. The limiting plate (401) has a hinge seat (403) symmetrically provided on one side away from the second connecting component (3). The hinge seat (403) is connected to the rotating rod (404). A fixed shaft (405) is provided inside one end of the rotating rod (404). The fixed shaft (405) is connected to the limiting block (406). A limiting hole (407) is provided through the limiting block (406).
5. A widened spliced roadbed structure with strong structural stability according to claim 4, characterized in that: The old roadbed component (6) includes several adapter holes (601) and groove cross sections (602). The groove cross sections (602) are L-shaped, and the surface of the groove cross sections (602) is filled with a mixture of sand and cement, with a smooth surface that is compatible with the connection part of the new roadbed (1).
6. A widened spliced roadbed structure with strong structural stability according to claim 3, characterized in that: The top of the new roadbed (1) is provided with a reinforcement component (5). The reinforcement component (5) includes several geogrids. The geogrids are interwoven to form a grid structure, and each grid is filled with rubber particles. The first reinforcement block (204) and the second reinforcement block (302) are block structures made of carbon fiber composite material.