Prefabricated assembled concrete retaining wall
By using prefabricated concrete retaining wall structures and fixing the cap beam with triangular angle steel and anchor bolts, the problems of complex construction, resource waste, and environmental pollution of traditional concrete retaining walls are solved, achieving a simple, economical, and efficient construction effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional concrete retaining wall construction involves cumbersome procedures, extended construction periods, high costs, resource waste, and serious environmental pollution, and cannot be recycled.
The prefabricated concrete retaining wall structure is adopted, and the capping beam is fixed with triangular angle steel and anchor bolts. The retaining wall body is a prefabricated structure, which is fixed with waterproof mortar to achieve disassembly and recycling.
Simplify construction processes, shorten construction periods, reduce costs, decrease resource consumption and environmental pollution, and achieve sustainable development.
Smart Images
Figure CN224338284U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of open-cut foundation pit engineering for rail transit, specifically to a precast concrete retaining wall. Background Technology
[0002] In open-cut foundation pit projects in the rail transit sector, concrete retaining walls are typically installed above the capping beam to ensure the safety of construction workers and effectively prevent flooding risks. The traditional construction method involves pre-installing vertical reinforcing bars during capping beam construction, and then binding the reinforcing bars and pouring the concrete for the retaining wall after the capping beam is poured. However, the traditional construction method for foundation pit retaining walls, due to its non-recyclable nature, has become a major pain point in the rail transit engineering field, specifically manifested in the following ways:
[0003] The process is complex: from reserving reinforcing bars to binding the reinforcing bars, pouring concrete, and then to the later removal, the process is tedious and time-consuming.
[0004] Construction period extension: The superposition of multiple processes leads to an extension of the construction period, affecting the overall project progress.
[0005] High cost: The investment in materials, labor and machinery is large, and the cost of subsequent demolition further increases the project cost.
[0006] Waste of resources: The retaining wall is a temporary structure that will eventually need to be removed to meet the requirements of subsequent pipeline and road restoration and long-term planning projects. This not only increases the difficulty of construction, but also causes a lot of construction waste and waste of resources.
[0007] Environmental pollution: Dust and waste generated during concrete removal have a negative impact on the environment.
[0008] Therefore, there is an urgent need for a concrete retaining wall that is easy to construct, economical in cost, and reduces resource consumption and environmental impact. Summary of the Invention
[0009] The purpose of this invention is to provide a prefabricated concrete retaining wall to at least solve the problems of inconvenient construction, high cost, resource waste, and environmental pollution caused by traditional retaining walls.
[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0011] A precast concrete retaining wall includes a capping beam and a retaining wall body;
[0012] The top of the cap beam is provided with several triangular angle steels, which are symmetrically distributed in two rows along the length of the cap beam.
[0013] The retaining wall body is a prefabricated structure, and the retaining wall body is arranged between the two rows of triangular angle steel.
[0014] Furthermore, anchor bolts are pre-installed within the crown beam, and these anchor bolts extend above the top of the crown beam.
[0015] Furthermore, the triangular angle steel has several mounting holes through which the anchor bolts pass.
[0016] Furthermore, the retaining wall body includes multiple tongue-and-groove retaining walls, which are horizontally assembled in the horizontal tongue-and-groove direction to form a single layer distribution.
[0017] Furthermore, the retaining wall body includes multiple tongue-and-groove retaining walls, which are vertically arranged in two layers through multiple connectors.
[0018] Furthermore, the lower layer of the tongue-and-groove retaining wall has several first connection holes near the top.
[0019] Furthermore, the upper layer of the tongue-and-groove retaining wall has several second connection holes near the bottom.
[0020] Furthermore, the connector includes a connecting steel plate and a plurality of connecting bolts, the connecting steel plate being fixed to the vertical joint of the adjacent tongue-and-groove retaining walls by the connecting bolts.
[0021] Furthermore, the thickness of the tongue-and-groove retaining wall is consistent with the distance between the two rows of triangular angle steel.
[0022] Furthermore, waterproof mortar is injected at the locations where the tongue-and-groove retaining walls are assembled together and at the locations where the tongue-and-groove retaining walls are joined with the triangular angle steel.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] This utility model provides a precast concrete retaining wall, including a capping beam and a retaining wall body. The retaining wall body is a precast structure and is detachably fixed to the top of the capping beam by triangular angle steel, which makes construction simple, cost-effective, and quick to install. It can also be precast and mass-produced in advance, and can be disassembled and recycled, saving carbon and protecting the environment, reducing resource consumption and environmental impact. This provides more efficient, economical, and sustainable technical support for rail transit engineering, with high economic and social benefits, and has broad application prospects in urban rail transit, railway, building construction and other projects. Attached Figure Description
[0025] 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 or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of a single retaining wall structure with tongue and groove joints in Example 1;
[0027] Figure 2 This is a schematic diagram of the assembly process in Example 1;
[0028] Figure 3 This is a schematic diagram of the structure of Example 1;
[0029] Figure 4 This is a schematic diagram of the vertical position of the tongue-and-groove retaining wall in Example 2;
[0030] Figure 5 This is a schematic diagram of the connector connection in Embodiment 2;
[0031] Figure 6 This is a schematic diagram of the assembly process in Example 2;
[0032] Figure 7 This is a schematic diagram of the structure of Example 2;
[0033] The diagram is labeled as follows:
[0034] 1-Cover beam, 2-Triangular angle steel, 3-Anchor bolt, 4-Retaining wall with tongue and groove, 5-First connecting hole, 6-Second connecting hole, 7-Connecting steel plate, 8-Connecting bolt. Detailed Implementation
[0035] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0036] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] Furthermore, in the description of this utility model, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Of course, such terms can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in a sequence other than those illustrated or described herein.
[0039] Example 1:
[0040] like Figure 1 As shown, this embodiment provides a prefabricated assembled concrete retaining wall, including a capping beam 1 and a retaining wall body. Several anchor bolts 3 are reserved at intervals in the capping beam 1, and the anchor bolts 3 extend above the top of the capping beam 1, thereby facilitating the installation of triangular angle steel 2.
[0041] Specifically, a number of triangular angle steels 2 are set on the top of the crown beam 1. The triangular angle steels 2 are symmetrically distributed in two rows along the length of the crown beam 1. A number of installation holes are opened at intervals on one side of the triangular angle steels 2 that fits against the top of the crown beam 1. The interval between the installation holes is the same as the interval between the anchor bolts 3. The installation holes of the triangular angle steels 2 are passed through the anchor bolts 3 reserved in the crown beam 1, and the anchor bolt nuts are used for installation and fixation, thereby fixing the triangular angle steels 2 to the crown beam 1.
[0042] The retaining wall body is a prefabricated structure, and the retaining wall body is set between two rows of triangular angle steel 2.
[0043] In this embodiment, as Figure 2 As shown, the retaining wall body includes multiple tongue-and-groove retaining walls 4, which are horizontally assembled in the horizontal tongue-and-groove direction to form a single layer distribution.
[0044] like Figure 3As shown, the thickness of the tongue-and-groove retaining wall 4 is consistent with the distance between the two rows of triangular angle steel 2. Triangular angle steel 2 is symmetrically installed on the cap beam 1 according to the thickness of the tongue-and-groove retaining wall 4. The tongue-and-groove retaining wall 4 is inserted between the two rows of triangular angle steel 2. The tongue-and-groove retaining wall 4 is tightly fitted with the triangular angle steel 2. The tongue-and-groove retaining wall 4 is horizontally assembled in the horizontal tongue-and-groove direction within the space established by the triangular angle steel 2, thereby forming a single-layer retaining wall.
[0045] Waterproof mortar is poured at the joints of the tongue-and-groove retaining walls 4 and at the joints of the tongue-and-groove retaining walls 4 and the triangular angle steel 2.
[0046] After the foundation pit is completed, the tongue-and-groove retaining wall 4 and the triangular angle steel 2 will be dismantled and recycled for use in other foundation pit support, thus enabling recycling, saving carbon and protecting the environment.
[0047] Example 2:
[0048] In this embodiment, the structure includes a crown beam 1 and a retaining wall body. Several anchor bolts 3 are pre-installed at intervals inside the crown beam 1. The anchor bolts 3 extend above the top of the crown beam 1, thereby facilitating the installation of triangular angle steel 2.
[0049] Specifically, a number of triangular angle steels 2 are set on the top of the crown beam 1. The triangular angle steels 2 are symmetrically distributed in two rows along the length of the crown beam 1. A number of installation holes are opened at intervals on one side of the triangular angle steels 2 that fits against the top of the crown beam 1. The interval between the installation holes is the same as the interval between the anchor bolts 3. The installation holes of the triangular angle steels 2 are passed through the anchor bolts 3 reserved in the crown beam 1, and the anchor bolt nuts are used for installation and fixation, thereby fixing the triangular angle steels 2 to the crown beam 1.
[0050] The retaining wall body is a prefabricated structure, and the retaining wall body is set between two rows of triangular angle steel 2.
[0051] In this embodiment, as Figure 4 As shown, the retaining wall body includes multiple tongue-and-groove retaining walls 4. The tongue-and-groove retaining walls 4 are arranged vertically in two layers through multiple connectors, which is used in scenarios where the vertical height of the retaining wall needs to be increased.
[0052] The lower layer has three sets of first connecting holes 5 spaced apart near the top of the tongue-and-groove retaining wall 4, with each set having three first connecting holes 5 spaced apart.
[0053] The upper layer has three sets of second connecting holes 6 spaced apart near the bottom of the tongue-and-groove retaining wall 4, with each set having three second connecting holes 6 spaced apart.
[0054] The first connecting hole 5 and the second connecting hole 6 are distributed correspondingly.
[0055] like Figure 5 and Figure 6As shown, the connector includes a connecting steel plate 7 and six connecting bolts 8. The connecting steel plate 7 has six bolt holes, which correspond to the first connecting hole 5 and the second connecting hole 6, respectively. The six connecting bolts 8 pass through the bolt holes, the first connecting hole 5, and the second connecting hole 6 in sequence, thereby fixing the connecting steel plate 7 to the joint of the vertically adjacent tongue-and-groove retaining walls 4, thus fixing the vertically adjacent tongue-and-groove retaining walls 4.
[0056] like Figure 7 As shown, the thickness of the tongue-and-groove retaining wall 4 is consistent with the distance between the two rows of triangular angle steel 2. Triangular angle steel 2 is symmetrically installed on the cap beam 1 according to the thickness of the tongue-and-groove retaining wall 4. The tongue-and-groove retaining wall 4 is inserted between the two rows of triangular angle steel 2. The tongue-and-groove retaining wall 4 is tightly fitted with the triangular angle steel 2. Within the space established by the triangular angle steel 2, the lower layer of tongue-and-groove retaining wall 4 is horizontally assembled in the horizontal tongue-and-groove direction, and the upper layer of tongue-and-groove retaining wall 4 is vertically heightened and assembled in the vertical tongue-and-groove direction.
[0057] Waterproof mortar is poured at the joints of the tongue-and-groove retaining walls 4 and at the joints of the tongue-and-groove retaining walls 4 and the triangular angle steel 2.
[0058] After the foundation pit is completed, the tongue-and-groove retaining wall 4, triangular angle steel 2, connecting steel plate 7 and connecting bolt 8 will be removed and recycled for use in other foundation pit support, thus enabling recycling, saving carbon and protecting the environment.
[0059] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.
Claims
1. A precast assembled concrete retaining wall, comprising a capping beam (1), characterized in that: It also includes the retaining wall itself; The top of the crown beam (1) is provided with several triangular angle steels (2), and the triangular angle steels (2) are symmetrically distributed in two rows along the length direction of the crown beam (1); The retaining wall body is a prefabricated structure, and the retaining wall body is arranged between the two rows of triangular angle steel (2).
2. A precast assembled concrete retaining wall according to claim 1, characterized in that: An anchor bolt (3) is pre-installed in the crown beam (1), and the anchor bolt (3) extends above the top of the crown beam (1).
3. A precast assembled concrete retaining wall according to claim 1, characterized in that: The triangular angle steel (2) has several mounting holes, and the mounting holes pass through the anchor bolt (3).
4. A precast assembled concrete retaining wall according to claim 1, characterized in that: The retaining wall body includes multiple tongue-and-groove retaining walls (4), which are horizontally assembled in the horizontal tongue-and-groove direction to form a single layer distribution.
5. A precast assembled concrete retaining wall according to claim 1, characterized in that: The retaining wall body includes multiple tongue-and-groove retaining walls (4), which are vertically arranged in two layers through multiple connectors.
6. A precast assembled concrete retaining wall according to claim 5, characterized in that: The lower layer of the tongue-and-groove retaining wall (4) has several first connection holes (5) near the top.
7. A precast assembled concrete retaining wall according to claim 5, characterized in that: The upper layer of the tongue-and-groove retaining wall (4) has several second connecting holes (6) near the bottom.
8. A precast assembled concrete retaining wall according to claim 5, characterized in that: The connector includes a connecting steel plate (7) and a plurality of connecting bolts (8), wherein the connecting steel plate (7) is fixed to the vertical joint of the adjacent tongue-and-groove retaining wall (4) by the connecting bolts (8).
9. A precast assembled concrete retaining wall according to claim 1, characterized in that: The thickness of the tongue-and-groove retaining wall (4) is consistent with the distance between the two rows of triangular angle steel (2).
10. A precast assembled concrete retaining wall according to claim 1, characterized in that: Waterproof mortar is injected at the locations where the tongue-and-groove retaining walls (4) are assembled together and at the locations where the tongue-and-groove retaining walls (4) and the triangular angle steel (2) are joined.