A subgrade widening splice subgrade structure
By introducing a reinforced installation mechanism into the spliced roadbed structure, the problem of unstable splicing between new and old roadbeds was solved, and the stability and safety of the splicing point were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-07-03
Smart Images

Figure CN224451295U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of spliced roadbed structure, specifically relating to a roadbed widening and splicing roadbed structure. Background Technology
[0002] A roadbed is an earthwork structure formed by excavation or filling. When widening a roadbed, a new roadbed is usually installed by splicing it onto the side of the old roadbed. The existing spliced roadbed structure is a roadbed body that is widened and spliced onto the side of the old roadbed, which is convenient for splicing and installation.
[0003] Existing spliced roadbed structures, when used to widen and extend old roadbeds, directly interlock and install the widened new roadbed with the old one. After installation, reinforcement is difficult, and prolonged driving stress at the joint can easily cause it to loosen. Frequent loosening can lead to damage and even widen the gap, creating a hazard. This affects the reinforcement and stability of the spliced roadbed structure after installation with the old roadbed. Therefore, this invention proposes a roadbed widening and splicing structure. Utility Model Content
[0004] The purpose of this utility model is to provide a roadbed widening and splicing roadbed structure to solve the problems mentioned in the background art, such as the splicing and interlocking installation between the widened new roadbed and the old roadbed, the difficulty in reinforcing after splicing and interlocking installation, the easy loosening of the splicing joint when driving under stress at the splicing joint for a long time, the frequent loosening of the splicing joint, the damage of the splicing joint, and even the widening of the gap at the splicing joint, which may cause danger.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a roadbed widening and splicing structure, comprising a splicing roadbed structure body, the splicing roadbed structure body including a ground surface, an old roadbed being provided at one end of the upper surface of the ground surface, a new roadbed being provided on one side of the old roadbed on the upper surface of the ground surface, a splicing clamping plate integrally provided on one side of the old roadbed, and a splicing groove being formed on one side of the new roadbed to engage with the splicing clamping plate; the splicing roadbed structure body also includes:
[0006] The installation mechanism is reinforced, and the reinforced installation mechanism is a closed installation assembly at the connection between the old roadbed and the upper surface of the new roadbed. A rotational reinforcement assembly is provided at the internal connection between the closed installation assembly and the new roadbed and the old roadbed. A protective assembly is provided at the top of the rotational reinforcement assembly on the surface of the closed installation assembly.
[0007] The anti-sinking reinforcement mechanism includes a side reinforcement component disposed at the junction of the end of the new roadbed and the ground surface, and a bottom reinforcement support component disposed on the lower surface of the new roadbed.
[0008] Preferably, the closed mounting assembly includes a mounting groove formed at the connection between the old roadbed and the upper surface of the new roadbed, and a reinforcing connecting plate is closedly mounted inside the mounting groove.
[0009] Preferably, the rotational reinforcement assembly includes reinforcing anchor bolts fixedly anchored into the bottom ends of both sides inside the mounting groove. The reinforcing connecting plate has equal-distance adjustment grooves on both sides. The bottom end of the adjustment groove has a through hole, and the reinforcing anchor bolt passes through the through hole. The end of the reinforcing anchor bolt is located inside the adjustment groove and has a nut threaded on it.
[0010] Preferably, the reinforcing connecting plate is rotatably connected to the interior of the mounting groove by the reinforcing anchor bolt and nut thread.
[0011] Preferably, the protective component includes a reinforcing cover that snaps onto the top of the adjustment groove, and the reinforcing cover is flush with the surface of the reinforcing connecting plate.
[0012] Preferably, the side reinforcement component includes a side guard plate disposed at one end of the new roadbed on the surface of the ground, a bottom reinforcing plate disposed at the bottom end of the side guard plate, and the bottom reinforcing plate being reinforced and embedded in the ground. Embedded side reinforcement plates are cast at equal intervals at the end of the new roadbed, and the embedded side reinforcement plates are fixed to the inner side of the side guard plate by welding.
[0013] Preferably, the bottom reinforcement support assembly includes three reinforcement connecting plates cast and installed on the base of the new roadbed. V-shaped reinforcement plates are integrally provided on both sides of the bottom end of the reinforcement connecting plates, and the bottom end of the reinforcement connecting plates and the V-shaped reinforcement plates are embedded in the ground.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] By designing a reinforced installation mechanism, after the old and new roadbeds are spliced and installed, the reinforced connecting plate can be closed inside the installation groove. The reinforced anchor bolt extends through the through hole into the adjustment groove. The nut at the top of the reinforced anchor bolt is rotated to fix the reinforced connecting plate. This facilitates the splicing and reinforcement of the old and new roadbeds through the reinforced connecting plate. Furthermore, the widened section is less prone to loosening and damage when subjected to stress at the splice, thus preventing large gaps and ensuring safe driving. This improves the stability of the spliced roadbed structure after the old roadbed is widened and the new roadbed is spliced. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A;
[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram of section B;
[0020] Figure 5 This is a schematic diagram of the side guard plate, the embedded side reinforcement plate, and the reinforcement connecting plate of this utility model.
[0021] In the diagram: 100, main structure of the spliced roadbed; 101, old roadbed; 1011, reinforcing connecting plate; 1012, mounting groove; 1013, reinforcing anchor bolt; 1014, through hole; 1015, nut; 1016, adjusting groove; 1017, reinforcing cover; 102, new roadbed; 1021, side guard plate; 1022, embedded side reinforcing plate; 1023, bottom reinforcing plate; 1024, reinforcing connecting plate; 1025, V-shaped reinforcing plate; 103, splicing plate; 104, splicing slot; 105, ground. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1 to 5 This utility model provides a technical solution: a roadbed widening and splicing roadbed structure, including a splicing roadbed structure body 100, the splicing roadbed structure body 100 including a ground 105, an old roadbed 101 is provided at one end of the upper surface of the ground 105, a new roadbed 102 is provided on one side of the old roadbed 101 on the upper surface of the ground 105, a splicing clamping plate 103 is integrally provided on one side of the old roadbed 101, and a splicing groove 104 is formed on one side of the new roadbed 102 to engage with the splicing clamping plate 103. The splicing roadbed structure body 100 is also provided with:
[0024] The installation mechanism is reinforced, and the reinforced installation mechanism is a closed installation component at the connection between the old roadbed 101 and the upper surface of the new roadbed 102. A rotational reinforcement component is provided at the internal connection between the closed installation component and the new roadbed 102 and the old roadbed 101. A protective component is provided at the top of the rotational reinforcement component on the surface of the closed installation component. The old roadbed 101 and the new roadbed 102 can be spliced and installed and then reinforced by the reinforced installation mechanism. After installation, it is not easy to loosen and generate large gaps when subjected to force.
[0025] In order to facilitate the splicing and reinforcement of the old roadbed 101 and the new roadbed 102 by means of a closed installation assembly, in this embodiment, preferably, the closed installation assembly includes an installation groove 1012 formed at the connection between the upper surfaces of the old roadbed 101 and the new roadbed 102. A reinforcing connecting plate 1011 is closed and installed inside the installation groove 1012. The reinforcing connecting plate 1011 can be closed inside the installation groove 1012 to strengthen and fix the old roadbed 101 and the new roadbed 102, and the installation is reinforced to prevent loosening and protect the use.
[0026] To facilitate the reinforcement and fixing of the reinforcing connecting plate 1011 using the rotational reinforcement assembly, in this embodiment, preferably, the rotational reinforcement assembly includes reinforcing anchor bolts 1013 fixedly anchored into the bottom ends of both sides inside the mounting groove 1012. Adjustment grooves 1016 are equidistantly provided on both sides of the reinforcing connecting plate 1011. A through hole 1014 is provided at the bottom end of the adjustment groove 1016, and the reinforcing anchor bolt 1013 passes through the through hole 1014. When the reinforcing connecting plate 1011 is closed, the reinforcing anchor bolt 1013 can pass through the through hole 1014 and the adjustment groove 1016, facilitating installation and use. A nut 1015 is threadedly rotated at the end of the reinforcing anchor bolt 1013 inside the adjustment groove 1016, and the nut 1015 is rotated within the adjustment groove 1016 at the end of the reinforcing anchor bolt 1013, facilitating rotational reinforcement installation and use.
[0027] In order to facilitate the internal protection of the adjustment groove 1016 through the protective component, in this embodiment, preferably, the protective component includes a reinforcing cover 1017 that is snapped onto the top of the inside of the adjustment groove 1016, and the reinforcing cover 1017 is flush with the surface of the reinforcing connecting plate 1011, so that after the reinforcing installation, the reinforcing cover 1017 can be closed inside the adjustment groove 1016 for protection.
[0028] The anti-sinking reinforcement mechanism includes a side reinforcement component located at the junction of the end of the new roadbed 102 and the surface of the ground 105. The lower surface of the new roadbed 102 is provided with a bottom reinforcement support component. After the new roadbed 102 is spliced, installed and used, the anti-sinking reinforcement mechanism can reinforce and install the bottom of the new roadbed 102 to prevent it from sinking.
[0029] To facilitate the reinforcement and anti-settlement installation between the end of the new roadbed 102 and the surface of the ground 105 using the side reinforcement component, in this embodiment, preferably, the side reinforcement component includes a side guard plate 1021 disposed at one end of the new roadbed 102 on the upper surface of the ground 105. A bottom reinforcing plate 1023 is provided at the bottom end of the side guard plate 1021, and the bottom reinforcing plate 1023 is reinforcedly embedded inside the ground 105. Embedded side reinforcement plates 1022 are cast at equal intervals at the end of the new roadbed 102. The embedded side reinforcement plates 1022 and the inner side of the side guard plate 1021 are fixed by welding. The side guard plate 1021 can be fixed to the side of the new roadbed 102 and the surface of the ground 105 by the bottom reinforcing plate 1023. The side guard plate 1021 and the embedded side reinforcement plate 1022 are then welded together to reinforce and install the side guard plate 1021.
[0030] In order to facilitate the reinforcement and installation of the bottom end of the new roadbed 102 through the bottom reinforcement support assembly, in this embodiment, preferably, the bottom reinforcement support assembly includes three reinforcement connecting plates 1024 cast and installed at the bottom of the new roadbed 102. V-shaped reinforcement plates 1025 are integrally provided on both sides of the bottom end of the reinforcement connecting plate 1024, and the bottom end of the reinforcement connecting plate 1024 and the V-shaped reinforcement plate 1025 are embedded in the interior of the ground 105. The lower surface of the reinforcement connecting plate 1024 and the V-shaped reinforcement plate 1025 can be embedded in the interior of the ground 105 and cast and fixed, thereby supporting the bottom end of the new roadbed 102 and preventing settlement under stress through the reinforcement connecting plate 1024 and the V-shaped reinforcement plate 1025.
[0031] The working principle and usage process of this utility model: When using this type of roadbed widening and splicing roadbed structure, it is necessary to widen and splice a new roadbed 102 on one side of the old roadbed 101, and then splice the old roadbed 101 and the new roadbed 102 by using the splicing plate 103 to engage inside the splicing slot 104, which facilitates the widening and splicing of the roadbed.
[0032] Then, after splicing and installation, the reinforcing anchor bolt 1013 is reinforced and anchored inside the installation groove 1012, located inside the old roadbed 101 and the new roadbed 102. After anchoring and installation, when the reinforcing connecting plate 1011 is closed inside the installation groove 1012, the reinforcing anchor bolt 1013 is extended through the through hole 1014 into the adjusting groove 1016. The nut 1015 is then rotated at the top of the reinforcing anchor bolt 1013 to connect the reinforcing connecting plate 1011 with the new roadbed 102 and the old roadbed 102. The reinforcement and fixing installation between 01 is strengthened, and the reinforcement cover 1017 is closed inside the adjustment groove 1016 for protection. This makes it easier to splice the old roadbed 101 and the new roadbed 102 through the reinforcement connecting plate 1011 and strengthen the fixing installation. After the widening, it is not easy to loosen or break when the vehicle is under stress at the splice, so it is not easy to cause large gaps for safe driving and use. This improves the fixing of the spliced roadbed structure 100 after the side of the old roadbed 101 is widened and the new roadbed 102 is spliced.
[0033] Then, before the splicing installation of the main body 100 of the roadbed structure, the bottom reinforcing plate 1023 is embedded inside the ground 105 to close the side guard plate 1021 to one end of the upper surface of the ground 105. After the splicing installation, the embedded side reinforcing plate 1022 is welded to the inner side of the side guard plate 1021 to fix the side guard plate 1021. When closing the new roadbed 102, the bottom end of the reinforcing connecting plate 1024 and the V-shaped reinforcing plate 1025 are embedded inside the ground 105 and reinforced. Thus, after the splicing installation of the new roadbed 102, the bottom and the ground 105 are reinforced and supported by the side guard plate 1021 and the reinforcing connecting plate 1024. When the roadbed is subjected to driving force, it is not easy to settle. It is used for reinforcement and anti-settlement, and improves the anti-settlement reinforcement of the bottom and sides of the main body 100 of the splicing roadbed structure when the side of the old roadbed 101 is widened and spliced to form the new roadbed 102.
[0034] 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 roadbed widening and splicing roadbed structure, comprising a splicing roadbed structure body (100), wherein the splicing roadbed structure body (100) includes a ground surface (105), an old roadbed (101) is provided at one end of the upper surface of the ground surface (105), a new roadbed (102) is provided on one side of the old roadbed (101) on the upper surface of the ground surface (105), a splicing plate (103) is integrally provided on one side of the old roadbed (101), and a splicing groove (104) is formed on one side of the new roadbed (102) to engage with the splicing plate (103), characterized in that: The main body (100) of the spliced roadbed structure is also equipped with: The installation mechanism is reinforced, and the reinforced installation mechanism is set at the connection between the old roadbed (101) and the upper surface of the new roadbed (102) of the closed installation assembly. A rotational reinforcement component is provided at the internal connection between the closed installation assembly and the new roadbed (102) and the old roadbed (101). A protective component is provided at the top of the rotational reinforcement component on the surface of the closed installation assembly. The anti-sinking reinforcement mechanism includes a side reinforcement component disposed at the junction of the end of the new roadbed (102) and the ground surface (105), and a bottom reinforcement support component is disposed on the lower surface of the new roadbed (102).
2. A widened abutment splice abutment structure according to claim 1, wherein: The closed mounting assembly includes a mounting groove (1012) formed at the connection between the old roadbed (101) and the upper surface of the new roadbed (102), and a reinforcing connecting plate (1011) is closedly mounted inside the mounting groove (1012).
3. The roadbed widening and splicing roadbed structure according to claim 2, characterized in that: The rotating reinforcement assembly includes a reinforcing anchor bolt (1013) fixedly anchored into the bottom of both sides of the mounting groove (1012). The reinforcing connecting plate (1011) has an adjustment groove (1016) equidistantly opened on both sides. The bottom of the adjustment groove (1016) has a through hole (1014), and the reinforcing anchor bolt (1013) passes through the inside of the through hole (1014). The end of the reinforcing anchor bolt (1013) is located inside the adjustment groove (1016) and has a nut (1015) threaded on it.
4. A widened abutment splice abutment structure according to claim 3, wherein: The interior of the reinforcing connecting plate (1011) and the mounting groove (1012) are connected by the reinforcing anchor bolt (1013) and the nut (1015) through a threaded rotation.
5. A widened abutment splice abutment structure according to claim 3, wherein: The protective component includes a reinforcing cover (1017) that snaps onto the top of the inside of the adjustment groove (1016), and the reinforcing cover (1017) is flush with the surface of the reinforcing connecting plate (1011).
6. A widened embankment splice embankment structure according to claim 1, wherein: The side reinforcement assembly includes a side guard plate (1021) located on the upper surface of the ground (105) at one end of the new roadbed (102). The bottom end of the side guard plate (1021) is provided with a bottom reinforcing plate (1023), and the bottom reinforcing plate (1023) is reinforced and embedded in the ground (105). The end of the new roadbed (102) is equidistantly cast with embedded side reinforcement plates (1022), and the embedded side reinforcement plates (1022) are fixed to the inner side of the side guard plate (1021) by welding.
7. A widened abutment splice abutment structure according to claim 6, wherein: The bottom reinforcement support assembly includes three reinforcement connecting plates (1024) cast and installed at the bottom of the new roadbed (102). V-shaped reinforcement plates (1025) are integrally provided on both sides of the bottom end of the reinforcement connecting plate (1024), and the bottom end of the reinforcement connecting plate (1024) and the V-shaped reinforcement plate (1025) are embedded in the ground (105).