Connecting structure for assembled retaining wall

Abstract

The utility model discloses a connecting structure for an assembly type retaining wall. The connecting structure comprises a plurality of prefabricated retaining wall plates, bottom grooves used for installing the prefabricated retaining wall plates and connecting grooves formed between the adjacent prefabricated retaining wall plates. Limiting inserting blocks are arranged at the bottoms of the prefabricated retaining wall plates, the limiting inserting blocks are matched with the bottom grooves in size, and embedded steel bar parts are arranged in the bottom grooves. The prefabricated retaining wall plates and the limiting inserting blocks are provided with inserting holes for pre-burying reinforcing steel bar parts. Connecting main steel bars are arranged in the connecting grooves, and connecting concrete is poured in the connecting grooves. The connecting structure between the assembled retaining walls is improved, so that the stability performance between the retaining walls is improved.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to a connection structure for prefabricated retaining walls. Background Art

[0002] Retaining walls are widely used in roads, riverbanks, municipal engineering, slope protection and many other aspects. Traditional retaining walls are constructed by casting concrete in place. The construction process is relatively complex, requiring multiple steps such as site excavation and leveling, rebar binding, installation of scaffolding and formwork, pouring and curing concrete, and backfilling soil behind the wall. This consumes a lot of time and labor costs, involves a large amount of work, and makes it difficult to control the construction quality.

[0003] Prefabricated retaining walls are a new type of retaining wall structure with advantages such as rapid construction, environmental friendliness, and good stability. They are widely used in municipal construction, water conservancy projects, transportation infrastructure, and other fields.

[0004] In existing technologies, prefabricated retaining walls are retaining walls where individual structures are precast in a factory or on-site before installation, unlike monolithic cast-in-place retaining walls. Due to the use of precast components, prefabricated retaining walls can be installed in a short time, significantly shortening the construction cycle. The production and installation of precast components generate less construction waste and reduce construction dust, meeting higher environmental protection requirements.

[0005] However, at the same time, because prefabricated retaining walls are manufactured in factories, higher requirements are placed on the connection of prefabricated retaining walls. Utility Model Content

[0006] The purpose of this utility model is to provide a connection structure for prefabricated retaining walls, thereby improving the stability of each retaining wall by improving the connection structure between prefabricated retaining walls.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A connection structure for prefabricated retaining walls includes multiple prefabricated retaining wall panels, a bottom groove for installing the prefabricated retaining wall panels, and a connection groove between adjacent prefabricated retaining wall panels. Each prefabricated retaining wall panel has a limiting plug at its bottom, the limiting plug being adapted to the size of the bottom groove, and embedded reinforcing bars are provided within the bottom groove. Both the prefabricated retaining wall panels and the limiting plug have insertion holes for the embedded reinforcing bars. Connecting main reinforcing bars are provided within the connection groove, and connecting concrete is poured into it.

[0009] Furthermore, it also includes the casting formwork connected at the connection point of two adjacent precast retaining wall panels.

[0010] Furthermore, the precast retaining wall panel has connecting secondary steel bars extending from both sides, which are woven together with the connecting main steel bars.

[0011] Furthermore, the precast retaining wall panel is provided with grouting holes at its bottom.

[0012] Furthermore, the top of the precast retaining wall panel is equipped with multiple lifting hooks.

[0013] Furthermore, the precast retaining wall panel is provided with multiple inclined support connection ports on its side.

[0014] Compared with existing technologies, the advantages of this invention are as follows: Firstly, this invention uses a limiting plug-in block at the bottom of the precast retaining wall panel, which is inserted into the connecting groove for initial stabilization. The connection through the limiting plug-in block increases the stability of the precast retaining wall panel after hoisting into place, reducing the need for additional diagonal supports. Secondly, the bottom groove method allows for rapid positioning and hoisting of the precast retaining wall panel, avoiding hoisting deviations and further accelerating the installation speed. Furthermore, the connection structure provided by this invention effectively increases the stability between adjacent precast retaining wall panels by adding connecting main reinforcing bars later and through casting. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the connection structure for prefabricated retaining walls provided by this utility model. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the connection structure for prefabricated retaining walls provided by this utility model. Figure 2 .

[0018] Figure label:

[0019] 1. Limiting plug-in block; 2. Bottom groove; 3. Precast retaining wall panel; 4. Grouting hole; 5. Connecting secondary reinforcement; 6. Casting formwork; 7. Connecting main reinforcement. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and 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.

[0023] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0024] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0027] like Figure 1-Figure 2As shown, a connection structure for prefabricated retaining walls includes multiple prefabricated retaining wall panels 3, a bottom groove 2 for installing the prefabricated retaining wall panels 3, and a connection groove between adjacent prefabricated retaining wall panels 3; a limiting plug 1 is provided at the bottom of each prefabricated retaining wall panel 3, and the limiting plug 1 is adapted to the size of the bottom groove 2, and a pre-embedded steel bar is provided in the bottom groove 2; both the prefabricated retaining wall panel 3 and the limiting plug 1 are provided with insertion holes for the pre-embedded steel bar; the connection groove is provided with connecting main steel bars 7 and is filled with connecting concrete.

[0028] Compared to existing technologies, there are many types of retaining walls, each with different applications and scenarios. However, generally speaking, the design and construction of retaining walls must follow certain specifications and standards to ensure their stability and safety. During design, factors such as the physical and mechanical properties of the soil, hydrogeological conditions, and load effects should be considered to determine the type, size, and structure of the retaining wall. During construction, attention should be paid to key aspects such as the excavation and backfilling of the foundation trench, and the masonry and curing of the wall to ensure that the quality of the retaining wall meets design requirements. Unlike traditional retaining walls, prefabricated retaining walls are constructed by casting individual structures in a factory or on-site before installation. Unlike monolithic cast-in-place retaining walls, prefabricated retaining walls can be installed quickly due to the use of precast components, significantly shortening the construction cycle. The production and installation of precast components generate less construction waste and reduce construction dust, meeting higher environmental protection requirements. However, its disadvantage lies in the high requirements for the connection structure between retaining walls; tight connections between components and good overall stability are necessary for effective soil retention. In this invention, firstly, a limiting plug-in block 1 is installed at the bottom of the precast retaining wall panel 3, and a bottom groove 2 adapted to it is opened at the position of the foundation trench. The limiting plug-in block 1 enables more accurate hoisting into place and provides a certain auxiliary support, effectively preventing the precast retaining wall panel 3 from tipping over during installation. Secondly, connecting secondary steel bars 5 extend from both sides of the precast retaining wall panel 3, and connecting main steel bars 7 are installed and connected during connection. The stability between adjacent retaining wall panels is enhanced by cast-in-place pouring, resulting in a more stable overall connection structure.

[0029] It also includes a casting formwork 6 connected at the connection point of two adjacent precast retaining wall panels 3. The casting formwork 6 is fixed to the two adjacent precast retaining wall panels 3 respectively, and plays a fixing role when pouring concrete.

[0030] The precast retaining wall panel 3 has connecting secondary steel bars 5 extending from both sides, which are woven together with the connecting main steel bars 7.

[0031] The precast retaining wall panel 3 is provided with grouting holes 4 at its bottom. Grouting holes 4 at the bottom are used to inject grout and fix the bottom of the precast retaining wall panel 3 to the embedded steel bars.

[0032] The precast retaining wall panel 3 is equipped with multiple lifting hooks on its top. These hooks are used to lift the precast retaining wall panel 3 into place.

[0033] The precast retaining wall panel 3 has multiple inclined support connection ports on its side.

[0034] In practical application, the soil layer is first leveled in the designated area where a retaining wall needs to be erected, and a foundation trench is excavated. A bottom trench 2 is then excavated within the foundation trench, and bottom connecting steel reinforcement components are pre-embedded in the bottom trench. Simultaneously, the retaining wall panels are prefabricated in the factory, with the size and placement of the panels planned according to specific design requirements. After the prefabricated retaining wall panels 3 are completed, they are transported to the construction site and hoisted into their designated positions using hoisting machinery. When the hoisting height reaches approximately 50cm above the designated ground level, the retaining wall panels are manually lowered slowly, aligning with the pre-embedded steel reinforcement components and the bottom trench 2. After hoisting into place, diagonal supports are installed to initially fix the retaining wall panels, and the main connecting steel reinforcement 7 is hoisted and bundled with the secondary connecting steel reinforcement 5. Finally, the pouring operation is carried out, connecting the prefabricated retaining wall panels 3 and the foundation trench through grouting holes 4, and adding pouring formwork 6 to complete the connection between adjacent prefabricated retaining wall panels 3. Finally, the formwork, hoisting hooks, and diagonal supports are removed to complete the overall connection.

[0035] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A connection structure for an assembled retaining wall, characterized in that: The invention comprises a plurality of prefabricated retaining wall panels (3), a bottom groove (2) for installing the prefabricated retaining wall panels (3), and a connecting groove arranged between adjacent prefabricated retaining wall panels (3); a limiting plug-in block (1) is arranged at the bottom of the prefabricated retaining wall panel (3), and the limiting plug-in block (1) is adapted in size to the bottom groove (2), and a pre-buried steel bar is arranged in the bottom groove (2); the prefabricated retaining wall panel (3) and the limiting plug-in block (1) are both provided with a socket for the pre-buried steel bar; a connecting main steel bar (7) is arranged in the connecting groove and connecting concrete is poured.

2. The connection structure for an assembled retaining wall according to claim 1, characterized in that: It also includes a casting template (6) connected to the connection position of two adjacent prefabricated retaining wall panels (3).

3. The connection structure for an assembled retaining wall according to claim 1, characterized in that: The prefabricated retaining wall panel (3) has connecting auxiliary steel bars (5) extending from both sides thereof, and the connecting auxiliary steel bars (5) are woven together with the connecting main steel bars (7).

4. The connection structure for an assembled retaining wall according to claim 1, characterized in that: The bottom of the prefabricated retaining wall panel (3) is provided with a grouting hole (4).

5. The connection structure for an assembled retaining wall according to claim 1, characterized in that: A plurality of lifting hooks are arranged on the top of the prefabricated retaining wall panel (3).

6. The connection structure for an assembled retaining wall according to claim 1, characterized in that: The side of the prefabricated retaining wall panel (3) is provided with a plurality of oblique support connection openings.

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