An assembled prefabricated side wall

Abstract

The application discloses an assembled prefabricated side wall, a bottom plate is arranged along the extension direction of infrastructure, and a stiffening assembly and a first concrete layer are arranged in the bottom plate; the stiffening assembly is arranged in the interval of the bottom plate; the first concrete layer is cast in the inside of the bottom plate and forms an integrated structure with the stiffening assembly; a plurality of wall bodies are vertically fixed on both sides of the bottom plate and form a U-shaped integrated structure, and the end of the plurality of wall bodies close to the bottom plate is provided with a connecting assembly for fixed connection with each other. In the application, the wall bodies are precisely connected and firmly connected through the connecting assembly, the plurality of wall bodies are vertically fixed on both sides of the extension direction of the bottom plate, so that the side wall forms a closed enclosure system in the horizontal direction, can effectively block the erosion and interference of the external environment on the track foundation, when the bottom plate is subjected to load action, the stiffening assembly can improve the bending and shearing resistance of the bottom plate, and further improve the structural strength of the bottom plate and the wall body as a whole, so that the construction quality of the side wall is ensured.

Description

Technical Field

[0001] This application relates to the field of transportation construction technology, and in particular to a prefabricated sidewall. Background Technology

[0002] During subway track construction, sidewalls are typically used to protect the foundations on both sides of the track. In addition, sidewalls reduce noise during subway operation and prevent rainwater from flowing back into the foundations, ensuring vehicle safety.

[0003] Currently, there are two main construction methods for sidewalls: cast-in-place and precast assembly. However, both methods have many inconveniences. Cast-in-place sidewall construction requires the installation and removal of a large number of formwork, and taller sidewalls need to be poured in sections, resulting in a slow construction progress and difficulty in controlling construction quality. Precast assembly piers generally use full-section prefabrication followed by hoisting and assembly, requiring large hoisting equipment and a large number of temporary supports, which makes it difficult to guarantee the construction quality of the sidewalls in narrow construction environments.

[0004] Therefore, a new type of precast pier is needed to solve the above problems. Utility Model Content

[0005] This application provides a prefabricated modular sidewall, which aims to improve the assembly efficiency of the sidewall while ensuring the construction quality of the sidewall.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A prefabricated modular sidewall includes a base slab and multiple wall sections;

[0008] The base plate is set along the extension direction of the infrastructure, and the box-shaped base plate is equipped with stiffening components and a first concrete layer.

[0009] The stiffening component is spaced apart from the interior of the base plate;

[0010] The first concrete layer is poured inside the base slab and forms an integrated structure with the stiffening components;

[0011] Multiple wall sections are vertically fixed on both sides of the base plate extending direction, forming a U-shaped integrated structure. The interior of each wall section near the base plate is equipped with connecting components for fixing and connecting with each other.

[0012] Furthermore, the stiffening assembly includes multiple upper stiffening rods, multiple lower stiffening rods, and multiple stiffening web rods;

[0013] Multiple upper stiffening rods are horizontally spaced on the upper part of the base plate, and the length direction of the multiple upper stiffening rods is perpendicular to the extension direction of the base plate;

[0014] Multiple lower stiffening rods are mirror-mounted below their corresponding upper stiffening rods;

[0015] Multiple stiffening web members are linearly arranged between the corresponding upper stiffening member and the lower stiffening member. One end of each stiffening web member is fixedly connected to the circumferential surface of the corresponding upper stiffening member, and the other end is fixedly connected to the circumferential surface of the corresponding lower stiffening member. The axial length direction of the multiple stiffening web members is perpendicular to or at an angle to the radial direction of the corresponding upper stiffening member and the lower stiffening member.

[0016] Furthermore, each of the adjacent sections of the wall is provided with a pouring groove, the cavities of the adjacent pouring grooves are connected and connected to the foundations on both sides of the base plate, and low-expansion waterproof mortar is poured into the cavities of the pouring grooves.

[0017] Furthermore, the connection assembly includes multiple connecting sleeves and multiple connecting posts;

[0018] One end of multiple connecting sleeves extends into the interior of the base plate and is close to the wall side of the upper stiffening rod and lower stiffening rod, while the other end extends toward the corresponding wall side;

[0019] One end of each of the multiple connecting columns extends into the corresponding wall, while the other end is embedded in the end of the connecting sleeve away from the stiffening component, forming an interference fit.

[0020] Furthermore, the wall has an overall L-shaped structure, with the intersection of the horizontal and vertical sections of the wall set at an angle, and the thickness of the horizontal section of the wall is the same as the thickness of the base plate.

[0021] Furthermore, the wall is equipped with reinforcing ribs, the length of which is consistent with the cross-sectional profile of the wall.

[0022] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages:

[0023] In this application, the wall sections are precisely connected and firmly joined through connecting components. Multiple wall sections are vertically fixed on both sides of the extension direction of the base plate, so that the side walls form a closed enclosure system in the horizontal direction, which can effectively block the external environment from eroding and interfering with the track foundation. When the base plate is subjected to load, the stiffening components can improve the bending and shear resistance of the base plate, thereby improving the overall structural strength of the base plate and the wall, and ensuring the construction quality of the side walls. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural schematic diagram of the assembled state provided in the embodiments of this application;

[0026] Figure 2 This is a structural schematic diagram of the wall provided in an embodiment of this application;

[0027] Figure 3 This is a partial structural diagram of the wall provided in an embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the connection of multiple wall segments provided in an embodiment of this application.

[0029] Icons: 10-Base plate; 101-First concrete layer; 20-Wall; 21-Pouring trough; 22-Strengthening rib; 30-Stiffening assembly; 31-Upper stiffening rod; 32-Lower stiffening rod; 33-Stiffening web member; 40-Connecting assembly; 41-Connecting sleeve; 42-Connecting column. Detailed Implementation

[0030] 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, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0031] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0032] like Figures 1-4 As shown, a prefabricated modular sidewall includes a base plate 10 and multiple wall sections 20. The base plate 10 is arranged along the extension direction of the infrastructure. The box-shaped base plate 10 has a stiffening component 30 and a first concrete layer 101 inside. The periphery of the stiffening component 30 is spaced apart from the interior of the base plate 10. The first concrete layer 101 is poured into the interior of the base plate 10 and forms an integral structure with the stiffening component 30. The multiple wall sections 20 are vertically fixed on both sides of the extension direction of the base plate 10 and form a U-shaped integral structure. The interior of each of the multiple wall sections 20 near the end of the base plate 10 is provided with a connecting component 40 for fixing them together.

[0033] In the above scheme, the box-type structure, through its closed cross-section, evenly distributes and transfers the load from the upper track, train, and surrounding soil to the foundation below, ensuring the stability of the entire sidewall structure under stress. The stiffening assembly 30 is installed inside the base plate 10, with its periphery spaced apart from the interior of the base plate 10. When the base plate 10 is subjected to load, the stiffening assembly 30 acts as a reinforcing member, improving the bending and shear resistance of the base plate 10. During the pouring of the first concrete layer 101, the concrete encapsulates the stiffening assembly 30, forming an integrated structure. During stress, the first concrete layer 101 transfers the load to the stiffening assembly 30, which then shares part of the load through its own stiffness, reducing concrete deformation and stress concentration. Multiple wall segments 20 are vertically fixed on both sides of the base plate 10 along its extension direction, forming a U-shaped integrated structure. This creates a closed enclosure system in the horizontal direction, effectively preventing erosion and interference from surrounding soil and water to the track foundation, thereby extending the service life of the precast sidewalls. Connecting components 40 are used for the fixed connection between the wall segments 20. During sidewall assembly, each wall segment 20 is precisely aligned and firmly connected via the connecting components 40, improving assembly efficiency while ensuring construction quality.

[0034] Alternatively, protrusions and grooves can be provided at the ends of wall 20, and adjacent wall 20s can be connected together by inserting pins or bolts. This connection method not only ensures the connection strength between wall 20s, but also improves construction efficiency, allowing the side walls to be assembled quickly.

[0035] The stiffening assembly 30 includes multiple upper stiffening rods 31, multiple lower stiffening rods 32, and multiple stiffening web rods 33. The multiple upper stiffening rods 31 are horizontally spaced on the upper part of the base plate 10, and the length direction of the multiple upper stiffening rods 31 is perpendicular to the extension direction of the base plate 10. The multiple lower stiffening rods 32 are mirror images of the corresponding upper stiffening rods 31 below them. The multiple stiffening web rods 33 are linearly arrayed between the corresponding upper stiffening rods 31 and lower stiffening rods 32. One end of the multiple stiffening web rods 33 is fixedly connected to the circumferential surface of the corresponding upper stiffening rod 31, and the other end is fixedly connected to the circumferential surface of the corresponding lower stiffening rod 32. The axial length direction of the multiple stiffening web rods 33 is perpendicular to or at an angle to the radial direction of the corresponding upper stiffening rods 31 and lower stiffening rods 32.

[0036] In the above scheme, when the base plate 10 is subjected to a vertical load, the upper stiffener 31 and the lower stiffener 32 can directly bear part of the load. Through their own bending and shear resistance, they transfer the load along the length of the stiffeners to the supporting parts of the base plate 10, effectively reducing the deformation of the base plate 10 under load. Multiple stiffening web members 33 are linearly arrayed between the corresponding upper stiffener 31 and lower stiffener 32, with one end fixedly connected to the circumference of the upper stiffener 31 and the other end fixedly connected to the circumference of the lower stiffener 32. The presence of the stiffening web members 33 connects the upper and lower stiffeners 32 into a whole, forming a spatial truss structure. When the load is applied to the base plate 10, the stiffening web members 33 can bear and transfer the shear and tensile forces between the upper and lower stiffeners 32, making the stress distribution of the entire stiffening assembly 30 more uniform and reasonable. For example, when the base plate 10 is subjected to a lateral load, the stiffening web member 33 transforms the lateral load into an axial force through its own axial deformation and transmits it to the upper and lower stiffening members 32, thereby enhancing the base plate 10's ability to resist lateral deformation.

[0037] Each of the multiple wall sections 20 has a pouring groove 21 on one side adjacent to each other. The cavities of the adjacent pouring grooves 21 are connected and connected to the foundations on both sides of the base plate 10. Low-expansion waterproof mortar is poured into the cavities of the pouring grooves 21.

[0038] In the above scheme, multiple wall segments 20 are provided with casting grooves 21 on adjacent sides. During the side wall assembly construction, after each wall segment 20 is installed in place sequentially, the casting grooves 21 on adjacent wall segments 20 will connect with each other, and the groove cavities will be interconnected. This allows each wall segment 20 to form a continuous space in the horizontal direction through the casting grooves 21, which together with the foundations on both sides of the base slab 10 constitutes a relatively closed system. When low-expansion waterproof mortar is poured into the groove cavity of the casting groove 21, the mortar will fill the entire interconnected groove cavity space, completely filling the gaps between adjacent wall segments 20 and between the wall segment 20 and the foundation of the base slab 10, thereby achieving a tight connection between each wall segment 20 and also enhancing the integrity between the wall segment 20 and the foundation of the base slab 10.

[0039] The connecting assembly 40 includes multiple connecting sleeves 41 and multiple connecting posts 42; one end of the multiple connecting sleeves 41 extends into the interior of the base plate 10 and is close to the side of the wall 20 with the upper stiffening rod 31 and the lower stiffening rod 32, and the other end extends towards the side where the corresponding wall 20 is located; one end of the multiple connecting posts 42 extends into the interior of the corresponding wall 20, and the other end is embedded in the end of the connecting sleeve 41 away from the stiffening assembly 30, forming an interference fit.

[0040] In the above scheme, when the track sidewall is subjected to external loads, such as vibration loads generated by vehicle movement and pressure from the surrounding soil, the load is first applied to the wall 20. The wall 20 then transfers the load to the connecting column 42 installed inside it. Since one end of the connecting column 42 extends into the wall 20, forming an integral load-bearing unit with the wall 20, the load can be stably transferred along the connecting column 42. The other end of the connecting column 42 is embedded in the end of the connecting sleeve 41 away from the stiffening assembly 30, forming an interference fit. This improves the shear and tensile strength of the connecting column 42 and the connecting sleeve 41, thereby preventing separation or misalignment between the wall 20 and the base plate 10, ensuring the integrity of the sidewall structure, and improving the construction quality of the sidewall.

[0041] The wall 20 has an overall L-shaped structure. The intersection of the horizontal and vertical sections of the wall 20 is set at an angle, and the thickness of the horizontal section of the wall 20 is the same as the thickness of the base plate 10.

[0042] In the above scheme, the wall 20 has an overall L-shaped structure, with the horizontal and vertical sections interconnected to form an integrated load-bearing frame. For example, the vertical section mainly bears loads in the vertical or near-vertical direction, such as lateral pressure from the soil and lateral forces generated by vehicle movement. The loads are transferred downwards along the vertical section, and some loads are transferred to the horizontal section through the corners of the L-shaped structure. The horizontal section mainly bears vertical loads (such as vehicle loads and the self-weight of the base plate 10) transferred from the base plate 10, as well as horizontal forces from the soil acting on the horizontal section itself. The horizontal section transfers the loads to the vertical section and the connection points with the base plate 10, ultimately transferring them to the entire track foundation, thereby improving the overall load-bearing capacity of the structure.

[0043] The wall 20 is provided with a reinforcing rib 22, and the length direction of the reinforcing rib 22 is consistent with the cross-sectional contour path of the wall 20.

[0044] In the above scheme, the addition of reinforcing ribs 22 improves the overall compressive, tensile, and shear strength of the wall 20. Furthermore, the length direction of the reinforcing ribs 22 is consistent with the cross-sectional profile of the wall 20. This arrangement aims to constrain the concrete layer within the wall 20, preventing cracks and thus improving the load-bearing capacity of the wall 20 under compression, ensuring the structural stability of the wall 20.

[0045] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0046] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A prefabricated modular sidewall, characterized in that, Includes a base plate (10) and multiple wall sections (20); The base plate (10) is provided along the extension direction of the infrastructure, and the base plate (10) of the box structure is provided with a stiffening component (30) and a first concrete layer (101); The circumferential surface of the stiffening component (30) is spaced apart from the interior of the base plate (10); The first concrete layer (101) is poured into the interior of the base plate (10) and forms an integral structure with the stiffening component (30); Multiple wall sections (20) are vertically fixed on both sides of the base plate (10) in the extension direction, forming a U-shaped integrated structure. Each of the multiple wall sections (20) has a connecting component (40) for fixed connection with each other at one end near the base plate (10).

2. The prefabricated sidewall according to claim 1, characterized in that, The stiffening assembly (30) includes multiple upper stiffening rods (31), multiple lower stiffening rods (32), and multiple stiffening web rods (33); Multiple upper stiffening rods (31) are horizontally spaced on the upper part of the base plate (10), and the length direction of the multiple upper stiffening rods (31) is perpendicular to the extension direction of the base plate (10); Each of the lower stiffening rods (32) is mirror-arranged below the corresponding upper stiffening rod (31); Multiple stiffening web members (33) are linearly arranged between the corresponding upper stiffening member (31) and the lower stiffening member (32). One end of each stiffening web member (33) is fixedly connected to the circumferential surface of the corresponding upper stiffening member (31), and the other end is fixedly connected to the circumferential surface of the corresponding lower stiffening member (32). The axial length direction of the multiple stiffening web members (33) is perpendicular to or at an angle to the radial direction of the corresponding upper stiffening member (31) and the lower stiffening member (32).

3. The prefabricated sidewall according to claim 1, characterized in that, Each of the multiple wall sections (20) has a pouring groove (21) on one side adjacent to each other. The cavities of the adjacent pouring grooves (21) are connected and connected to the foundations on both sides of the base plate (10). The cavities of the pouring grooves (21) are used to pour low-expansion waterproof mortar.

4. The prefabricated sidewall according to claim 2, characterized in that, The connecting assembly (40) includes multiple connecting sleeves (41) and multiple connecting posts (42); One end of each of the connecting sleeves (41) extends into the interior of the base plate (10) and is close to the wall (20) along the upper stiffening rod (31) and the lower stiffening rod (32), while the other end extends toward the corresponding side of the wall (20). One end of each of the multiple connecting columns (42) extends into the corresponding wall (20), and the other end is embedded in the end of the connecting sleeve (41) away from the stiffening assembly (30), forming an interference fit.

5. The prefabricated sidewall according to claim 1, characterized in that, The wall (20) has an overall L-shaped structure. The intersection of the horizontal and vertical sections of the wall (20) is set at an oblique angle, and the thickness of the horizontal section of the wall (20) is the same as the thickness of the base plate (10).

6. The prefabricated sidewall according to claim 5, characterized in that, The wall (20) is provided with a reinforcing rib (22) inside, and the length direction of the reinforcing rib (22) is consistent with the cross-sectional contour path of the wall (20).

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