Reinforced soil retaining wall panel connecting structure

Abstract

The utility model discloses a reinforced soil retaining wall panel connecting structure. In an existing reinforced soil retaining wall structure, engineering accidents such as tie bar fracture and shingle deformation are prone to occurring. The retaining wall comprises a retaining wall body and a wall panel, wherein the wall panel is formed by laying concrete precast blocks; cement mortar is arranged between the upper-layer concrete precast block and the lower-layer concrete precast block; a construction tie bar is arranged between the upper-layer concrete precast block and the lower-layer concrete precast block, and the wall panel is connected with a soil body of the retaining wall; the retaining wall is of a wrapping type structure, and wrapping tie bars and stress main bars are arranged in each layer of soil. According to the utility model, the stability of the shingle is ensured, and the shingle is separated from the reinforced body, so that the shingle and the back soil body are relatively independent, and the problem of structural safety caused by poor settlement of the shingle and the back soil body is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of retaining walls, and in particular relates to a reinforced earth retaining wall panel connection structure. Background Art

[0002] Reinforced earth retaining walls are a type of retaining structure constructed using reinforced earth technology and are widely used in engineering construction fields such as railways, highways, and urban development. In existing reinforced earth retaining wall structures, common methods for connecting the reinforcement bars to the wall panels (i.e., modules) include welding, bolting, snap-fitting, bonding, plug-in connections, and pre-embedded components, which are inconvenient to construct. Alternatively, they are directly connected using load-bearing reinforcement bars.

[0003] These connection methods can provide sufficient horizontal tensile strength when fill settlement is minimal. However, when fill settlement is significant due to various loads, this connection method can subject the reinforcement to excessive tension, potentially leading to fractures, deformation of the wall panel, and other engineering accidents.

[0004] Given these issues, improvements to reinforced earth retaining wall panel connections are urgently needed. The goal is to design a connection method that effectively adapts to the uneven settlement between the fill and the concrete panel, reducing internal forces in the reinforcement and improving structural safety. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, the utility model provides a reinforced earth retaining wall panel connection structure, which separates the wall panel from the reinforcement body, ensures the stability of the wall panel, and improves the safety of the structure.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0007] A reinforced earth retaining wall panel connection structure, characterized in that it comprises a retaining wall and a wall panel, wherein the wall panel is constructed by using prefabricated concrete blocks;

[0008] Cement mortar is provided between the upper concrete prefabricated blocks and the lower concrete prefabricated blocks;

[0009] Structural reinforcement is provided between the upper concrete precast blocks and the lower concrete precast blocks to connect the wall panels to the retaining wall soil;

[0010] The retaining wall adopts a wrapping structure, and each layer of soil is equipped with back-wrapping reinforcement and main load-bearing reinforcement.

[0011] Furthermore, a filter layer is provided between the retaining wall and the wall panel.

[0012] Furthermore, the wall panel adopts a sloped structure.

[0013] Furthermore, the thickness of each soil layer of the retaining wall is the same as the thickness of the precast concrete blocks.

[0014] Furthermore, one end of the structural reinforcement is set on the cement mortar, and the other end is flush with the soil behind the wall.

[0015] Furthermore, the back-wrapped reinforcement wraps the soil toward the wall side.

[0016] Beneficial effects of the utility model:

[0017] 1) The utility model not only ensures the stability of the wall panel, but also separates the wall panel from the reinforcement body, making the wall panel relatively independent from the soil behind it, solving the structural safety problem caused by the settlement difference between the two;

[0018] 2) In this utility model, one end of the structural reinforcement is often pressed between the upper and lower modules, and a layer of cement mortar is laid between the upper and lower modules. This not only strengthens the connection strength between the modules, but also provides basic conditions for laying the structural reinforcement, making the construction simple and economical.

[0019] 3) This utility model uses structural reinforcement, and the wall surface can be designed into a sloped wall structure with any slope. The sloped structure is easy to control deformation and convenient to construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to specific implementation methods.

[0022] like Figure 1 As shown, the utility model includes a retaining wall and a wall panel, and a filter layer is provided between the retaining wall and the wall panel;

[0023] The wall panels adopt an inclined structure and are built with precast concrete blocks. The basic unit of the panel is a precast concrete block, also known as a module, which protects the reinforcement, decorates the appearance, and prevents the filler from leaking out.

[0024] Cement mortar is placed between the upper and lower precast concrete blocks. Using cement mortar to build the modules not only strengthens the connection strength between the modules, but also provides the basic conditions for laying the structural reinforcement.

[0025] Structural reinforcement is installed between the upper concrete precast blocks and the lower concrete precast blocks to connect the wall panels to the retaining wall soil; geogrids (i.e. structural reinforcement), with a length of 2 to 4 meters, connect the wall panels to the soil behind them; one end of the structural reinforcement is set on the cement mortar, and the other end is flush with the soil behind the wall.

[0026] The retaining wall utilizes a wrap-around structure, with backwrap reinforcement and main reinforcement installed within each soil layer. The thickness of each soil layer is the same as that of the precast concrete blocks. The backwrap reinforcement wraps around the soil toward the wall. The wrap-around structure utilizes friction between the geogrid and the filler, converting lateral pressure from the filler into tension along the geogrid, thereby stabilizing the wall. In this wrap-around structure, the reinforcement does not bear soil pressure.

[0027] The construction method of this utility model is as follows:

[0028] Step 1: Lay concrete modules

[0029] When laying the modules, apply a layer of cement mortar on the upper surface;

[0030] Step 2: Lay the geogrid

[0031] One end of the geogrid is placed on the mortar on the upper surface of the module, and the other end is level with the soil behind the wall, and then a layer of modules is added;

[0032] Step 3: Lay the geogrid

[0033] After adding a layer of modules, lay the load-bearing geogrid layer by layer (reserving the back-wrap length), and then fill the soil layer by layer with the thickness of the layer being basically the same as the thickness of the module;

[0034] Step 4: Backwrap the geogrid

[0035] After the fill compaction test is qualified, the geogrid is wrapped layer by layer.

[0036] In the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] The content of the present invention is not limited to the embodiments listed. Any equivalent transformation of the technical solution of the present invention made by ordinary technicians in this field after reading the description of the present invention is covered by the claims of the present invention.

Claims

1. A reinforced earth retaining wall panel connection structure, characterized by: It comprises a retaining wall and a wall panel, wherein the wall panel is constructed by using prefabricated concrete blocks; Cement mortar is provided between the upper concrete prefabricated blocks and the lower concrete prefabricated blocks; Structural reinforcement is provided between the upper concrete precast blocks and the lower concrete precast blocks to connect the wall panels to the retaining wall soil; The retaining wall adopts a wrapping structure, and each layer of soil is equipped with back-wrapping reinforcement and main load-bearing reinforcement.

2. The reinforced earth retaining wall panel connection structure according to claim 1, characterized in that: A filter layer is provided between the retaining wall and the wall panel.

3. The reinforced earth retaining wall panel connection structure according to claim 2, characterized in that: The wall panels adopt a bevel structure.

4. The reinforced earth retaining wall panel connection structure according to claim 3, characterized in that: The thickness of each layer of soil in the retaining wall is the same as the thickness of the precast concrete blocks.

5. The reinforced earth retaining wall panel connection structure according to claim 4, characterized in that: One end of the structural reinforcement is set on the cement mortar, and the other end is flush with the soil behind the wall.

6. The reinforced earth retaining wall panel connection structure according to claim 5, characterized in that: The back-wrap reinforcement wraps the soil toward the wall side.

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