Foam light soil roadbed for pavement splicing and filling

Abstract

The utility model relates to the field of foam light soil roadbeds, in particular to a foam light soil roadbed for pavement splicing and filling, a first splicing pavement and a second splicing pavement are built on the roadbed, and the foam light soil roadbed is poured between the first splicing pavement and the second splicing pavement. A detachable outer side plate is assembled on the outer side of the foam light soil roadbed; inner side plates are mounted on the inner sides of the outer side plates between the first spliced pavement and the second spliced pavement, the inner side plates on the two sides are fixedly connected through connecting columns, and prefabricated parts used for mounting the inner side plates are fixedly assembled between the first spliced pavement and the second spliced pavement. According to the utility model, the splicing between the first splicing pavement and the second splicing pavement can be realized by pouring the foam light soil roadbed, and the structural stability of the inner side plates can be improved by arranging the inner side plates and the prefabricated parts and matching the mutual clamping arrangement of the mounting columns and the mounting cavities; therefore, the compressive strength of the foam light soil roadbed after pouring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foam lightweight soil subgrade, in particular to a foam lightweight soil subgrade for pavement splicing and filling. Background Technique

[0002] Pavement splicing and filling refers to the process of splicing a newly built pavement with an existing pavement in a highway reconstruction and expansion project, and strengthening the connection between the new and old pavements through filling materials to ensure the integrity and stability of the pavement. Foam lightweight soil subgrade is an innovative road construction material, which is made by mixing lightweight materials with water foam, and has various advantages, especially suitable for reducing road construction costs and improving road quality.

[0003] At present, the strength of the foam lightweight soil subgrade on the market is relatively low and cannot bear too much load, resulting in a low compressive strength. Therefore, there is an urgent need for a foam lightweight soil subgrade with a large compressive strength. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to provide a foam lightweight soil subgrade for pavement splicing and filling.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A foam lightweight soil subgrade for pavement splicing and filling, including a foundation, on which a first splicing pavement and a second splicing pavement are built. A foam lightweight soil subgrade is poured between the first splicing pavement and the second splicing pavement, and a detachable outer plate is assembled on the outside of the foam lightweight soil subgrade; inner plates are installed on the inner sides of the first splicing pavement and the second splicing pavement between the outer plates, and the two inner plates are fixedly connected by connecting columns, and prefabricated parts for installing the inner plates are fixedly assembled between the first splicing pavement and the second splicing pavement.

[0007] In addition, a preferred structure is that steps are dug on the inner side walls of the first splicing pavement and the second splicing pavement, and prefabricated parts are fixedly installed above the steps.

[0008] In addition, a preferred structure is that the prefabricated parts are adapted to the steps, and a plurality of installation cavities are opened on the prefabricated parts, and the tops of the installation cavities are all communicated with the outside.

[0009] In addition, a preferred structure is that installation columns are fixedly and vertically connected to the connecting columns, and both ends of the installation columns are adaptively inserted into the installation cavities.

[0010] In addition, a preferred structure is that a plurality of reinforcement cavities are opened on the prefabricated parts outside the installation cavities, and a plurality of U-shaped cavities communicating with the reinforcement cavities are opened on the prefabricated parts.

[0011] In addition, a preferred structure is that a plurality of mutually communicating reinforcing cavities are formed on both sides of the inner plate, and the inner plate does not contact the outer plate.

[0012] The beneficial effects of the present utility model are as follows: By pouring the foamed lightweight soil subgrade, the splicing between the first spliced road surface and the second spliced road surface can be realized. Through the arrangement of the inner plate and the precast member, and in cooperation with the mutual clamping between the installation column and the installation cavity, the structural stability of the inner plate can be improved, thereby improving the compressive strength of the foamed lightweight soil subgrade after pouring. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram when the foamed lightweight soil subgrade and the outer plate in the foamed lightweight soil subgrade for road surface splicing and filling proposed by the present utility model are hidden;

[0014] Figure 2 Schematic structural diagram of the foamed lightweight soil subgrade for road surface splicing and filling proposed by the present utility model;

[0015] Figure 3 is Figure 2 Schematic structural diagram when the inner plate and the precast member in

[0016] Figure 4 Schematic structural diagram of the inner plate and the connecting column of the foamed lightweight soil subgrade for road surface splicing and filling proposed by the present utility model;

[0017] Figure 5 Schematic structural diagram of the precast member of the foamed lightweight soil subgrade for road surface splicing and filling proposed by the present utility model;

[0018] Figure 6 is Figure 5 Internal structural schematic diagram of the U-shaped cavity in the precast member in

[0019] In the figure: 1 foundation, 11 first spliced road surface, 12 second spliced road surface, 13 foamed lightweight soil subgrade, 14 step, 2 outer plate, 3 inner plate, 31 reinforcing cavity, 4 precast member, 41 installation cavity, 42 reinforcement cavity, 43 U-shaped cavity, 5 connecting column, 51 installation column. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Refer to Figures 1-6, A lightweight foamed soil subgrade for pavement splicing and filling, including a foundation 1. On the foundation 1, a first splicing pavement 11 and a second splicing pavement 12 are constructed. A lightweight foamed soil subgrade 13 is poured between the first splicing pavement 11 and the second splicing pavement 12, and a detachable outer plate 2 is assembled on the outside of the lightweight foamed soil subgrade 13. Inner plates 3 are installed on the inner sides of the first splicing pavement 11 and the second splicing pavement 12 between the outer plates 2. The two inner plates 3 are fixedly connected by connecting columns 5, and a precast member 4 for installing the inner plates 3 is fixedly assembled between the first splicing pavement 11 and the second splicing pavement 12. Among them, the specific pouring method and curing method of the lightweight foamed soil subgrade 13 are all existing technologies publicly available on the market at present, and they do not belong to the main technical problems to be solved in this technical solution. Therefore, they will not be elaborated in this utility model.

[0022] Among them, steps 14 are excavated on the inner side walls of the first splicing pavement 11 and the second splicing pavement 12, and precast members 4 are fixedly installed above the steps 14. The steps excavated on the first splicing pavement 11 and the second splicing pavement 12 are existing technologies, and their specific excavation methods have been widely publicized on the market. Therefore, they will not be elaborated in this utility model.

[0023] Among them, the precast member 4 is adapted to the step 14. A plurality of installation cavities 41 are opened on the precast member 4, and the tops of the installation cavities 41 are all communicated with the outside. The precast member 4 is customized in the factory and needs to be fixedly installed on the top of the step 14 in a matching manner.

[0024] Among them, mounting columns 51 are fixedly and vertically connected to the connecting columns 5, and both ends of the mounting columns 51 are adaptively inserted into the installation cavities 41. When pouring the lightweight foamed soil subgrade 13, the mounting columns 51 can be tightly fixed in the installation cavities 41 by pouring the lightweight foamed soil subgrade 13. Thus, the fixed installation between the connecting columns 5 and the two inner plates 3 can be realized through the matching and clamping between the mounting columns 51 and the installation cavities 41.

[0025] Among them, a plurality of reinforcement cavities 42 are opened on the outside of the installation cavities 41 on the precast member 4, and a plurality of U-shaped cavities 43 communicating with the reinforcement cavities 42 are opened on the precast member 4. When pouring the lightweight foamed soil subgrade 13, it will flow into the reinforcement cavities 42 through the U-shaped cavities 43. Thus, the lightweight foamed soil subgrade can adhere to the mounting columns 51 in the installation cavities 41, thereby further improving the stability of the mounting columns 51 after assembly.

[0026] Among them, a plurality of mutually communicating strengthening cavities 31 are opened on both sides of the inner plate 3, and the inner plate 3 does not contact the outer plate 2. When pouring the lightweight foamed soil subgrade 13, the lightweight foamed soil subgrade 13 will flow into the strengthening cavities 31, thereby improving the overall stability of the inner plate 3 during installation.

[0027] In this embodiment, when the user needs to use the foamed lightweight soil subgrade 13 to splice the first spliced road surface 11 and the second spliced road surface 12 on the foundation 1, the outer plate 2 can be first installed on the sides of the first spliced road surface 11 and the second spliced road surface 12. Thus, the setting of the outer plate 2 can prevent the foamed lightweight soil subgrade 13 from oozing out during pouring. Then the user can fixedly install the precast member 4 on the steps 14 on both sides.

[0028] Furthermore, when the user finishes installing the precast member 4, the inner plate 3 can be installed inside the outer plates 2 on both sides. Since the inner plate 3 is lowered from top to bottom, when installing the inner plate 3, the installation posts 51 on the inner plate 3 will also synchronously enter the installation cavities 41 on the precast member 4. Finally, the user only needs to pour and cure the foamed lightweight soil subgrade 13. After the foamed lightweight soil subgrade 13 is formed, the outer plate 2 can be removed to complete the splicing of the first spliced road surface 11 and the second spliced road surface 12.

[0029] Furthermore, when the user pours the foamed lightweight soil subgrade 13, the foamed lightweight soil subgrade 13 will enter the reinforcement cavity 42 through the U-shaped cavity 43, thereby improving the connection stability of the installation posts 51 in the installation cavities 41. And when the foamed lightweight soil subgrade 13 flows into the strengthening cavity 31 on the inner plate 3, it can further improve the stability of the inner plate 3 after installation.

[0030] In this utility model, through the pouring of the foamed lightweight soil subgrade 13, the splicing between the first spliced road surface 11 and the second spliced road surface 12 can be realized. Through the setting of the inner plate 3 and the precast member 4, and in cooperation with the mutual engagement between the installation posts 51 and the installation cavities 41, the structural stability of the inner plate 3 can be improved, thereby improving the compressive strength of the foamed lightweight soil subgrade 13 after pouring.

[0031] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A foamed lightweight soil roadbed for road surface splicing and filling, comprising a foundation (1), characterized in that: A first joint pavement (11) and a second joint pavement (12) are constructed on the foundation (1), a foamed lightweight soil roadbed (13) is poured between the first joint pavement (11) and the second joint pavement (12), and a detachable outer side plate (2) is mounted on the outer side of the foamed lightweight soil roadbed (13); An inner panel (3) is installed on the inner side of the outer panel (2) between the first spliced ​​pavement (11) and the second spliced ​​pavement (12), the inner panels (3) on both sides are fixedly connected via a connecting column (5), and a prefabricated component (4) for installing the inner panel (3) is fixedly installed between the first spliced ​​pavement (11) and the second spliced ​​pavement (12).

2. The foamed lightweight soil roadbed for road surface splicing and filling according to claim 1 is characterized in that: Steps (14) are excavated on the inner side walls of the first spliced ​​pavement (11) and the second spliced ​​pavement (12), and prefabricated components (4) are fixedly installed above the steps (14).

3. The foamed lightweight soil roadbed for road surface splicing and filling according to claim 2 is characterized in that: The prefabricated part (4) is adapted to fit the step (14), a plurality of installation cavities (41) are provided on the prefabricated part (4), and the tops of the installation cavities (41) are all in communication with the outside.

4. The foamed lightweight soil roadbed for road surface splicing and filling according to claim 3 is characterized in that: The connection columns (5) are fixedly and vertically connected with mounting columns (51), and both ends of the mounting columns (51) are adapted to be inserted into the mounting cavity (41).

5. The foamed lightweight soil roadbed for road surface splicing and filling according to claim 4 is characterized in that: The preform (4) is provided with a plurality of reinforcement cavities (42) located outside the installation cavity (41), and the preform (4) is provided with a plurality of U-shaped cavities (43) communicating with the reinforcement cavities (42).

6. The foamed lightweight soil roadbed for road surface splicing and filling according to claim 1 is characterized in that: A plurality of mutually communicating reinforcement cavities (31) are provided on both sides of the inner plate (3), and the inner plate (3) does not contact the outer plate (2).

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