Mountain road retaining structure
The modular design of precast concrete blocks and a three-dimensional anchoring system solves the problem of weak connection in traditional mountain road retaining structures, achieving a highly efficient and stable retaining structure for mountain roads that adapts to complex geological conditions and reduces environmental impact.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN DESIGN INSTITUTE GROUP CONSTRUCTION CO LTD
- Filing Date
- 2025-02-24
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional retaining structures for mountain roads have weak connections between their various parts, making it difficult to form a strong overall structure. This results in low construction efficiency, significant environmental impact, and insufficient stability. In particular, under complex geological conditions, they are unable to meet the requirements of long-term loads and external factors such as earthquakes.
By employing precast concrete blocks, modular design, and a three-dimensional anchoring system, a stable three-dimensional anchoring network is formed through the precise splicing of right-angled trapezoidal protrusions and openings, combined with transverse, longitudinal, and vertical anchor bars, thereby enhancing the connectivity between wall blocks and overall stability.
It improves construction efficiency, enhances the overall stability of the structure and its resistance to shear and bending moments, reduces the environmental impact of construction, lowers project costs, and improves the adaptability and aesthetics of the structure.
Smart Images

Figure CN224173368U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of highway retaining technology, specifically relating to a retaining structure for mountain highways. Background Technology
[0002] In the construction of mountain highways, the design and construction of retaining structures face numerous challenges due to complex terrain and variable geological conditions. Traditional retaining structures, such as gravity retaining walls and pile-slab retaining walls, while meeting stability and safety requirements to a certain extent, have limitations in construction efficiency, structural integrity, and environmental adaptability. With the development of materials science and construction technology, modularization, prefabrication, and high-strength anchoring technologies are gradually being applied to the design of retaining structures for mountain highways to improve structural performance and construction efficiency.
[0003] Existing traditional retaining structures for mountain roads often have weak connections between their components, making it difficult to form a strong overall structure, especially when facing complex geological conditions. They typically require on-site casting, which is greatly affected by weather and the environment, resulting in long construction periods, low efficiency, and significant construction waste and environmental impact during construction. Furthermore, the stability of traditional structures may be insufficient when facing long-term loads, earthquakes, and other external factors.
[0004] In view of this, we propose a retaining structure for mountain roads. By using precast concrete blocks, modular design, precise splicing method and three-dimensional anchoring system, it overcomes the shortcomings of traditional structures, provides higher construction efficiency, better quality control and more stable structural performance, while reducing environmental impact and improving long-term reliability. Utility Model Content
[0005] The present invention aims to solve the technical problem that the connections between the various parts of the retaining wall structure of mountain highways in the above-mentioned prior art are often weak, making it difficult to form a strong overall structure.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A retaining structure for mountain roads includes a retaining wall, which is composed of several wall blocks joined together.
[0008] The wall block has two filling grooves for filling with stone concrete, and U-shaped slots are opened on the outer edge of the two filling grooves. After two adjacent wall blocks are spliced together, insert blocks are horizontally inserted into the U-shaped slots on the two connecting edges.
[0009] One side of the wall block has a right-angled trapezoidal protrusion at the top and a right-angled trapezoidal opening at the bottom. When the upper and lower wall blocks are spliced together, the right-angled trapezoidal protrusion of the lower wall block is inserted into the right-angled trapezoidal opening of the upper wall block.
[0010] When assembling two layers of wall blocks, the upper wall block is joined in the middle of the two adjacent wall blocks on the left and right.
[0011] The wall blocks are joined together using specific right-angled trapezoidal protrusions and openings to form a stable and robust retaining wall structure. Infill grooves on the wall blocks are used to fill with aggregate concrete, enhancing the stability and integrity of the blocks. The connection between the wall blocks and the overall stability are improved by installing horizontal, vertical, and vertical anchor bars.
[0012] On the side wall of the wall block, below the rectangular through-hole B, there is a circular insertion hole A that penetrates the wall block. A transverse anchor bar is inserted into circular insertion hole A. On the wall block, below the U-shaped opening, there is a circular insertion hole B that communicates with the filling groove. A longitudinal anchor bar is inserted into circular insertion hole B, which is staggered with the transverse anchor bar and located above the transverse anchor bar. The transverse anchor bars in circular insertion hole A and the longitudinal anchor bars in circular insertion hole B increase the anchoring effect between the wall blocks and improve the structure's pull-out resistance.
[0013] Vertical anchor bars, located within the filling groove, are inserted into the inner sides of the rectangular groove formed by the horizontal and vertical anchor bars. These vertical anchor bars are staggered with the horizontal and vertical anchor bars to enhance the three-dimensional connection between wall blocks and improve overall stability. By incorporating horizontal, vertical, and vertical anchor bars, the connectivity and overall stability between wall blocks are improved.
[0014] Preferably, the bottom wall blocks are placed on the foundation. This ensures close contact between the wall blocks and the foundation, improving the overall structural stability. It also distributes the load evenly, reducing the risk of uneven foundation settlement.
[0015] Precast concrete blocks are preferred for the wall sections. Precast concrete blocks can be factory-produced, improving construction efficiency. The quality of precast blocks is easy to control, ensuring the reliability of the overall structure.
[0016] Preferably, the two filling slots are separated by a central partition. The central partition separates the filling slots, making the concrete filling more uniform and enhancing the shear resistance of the wall block.
[0017] Preferably, a decorative wall surface is provided on the wall block on one side of the right-angled trapezoidal protrusion, and a U-shaped opening is provided on the side of the wall block facing away from the decorative wall surface, which connects to two infill grooves respectively. The decorative wall surface provides an aesthetically pleasing appearance and enhances the visual effect of the structure. The connection between the U-shaped opening and the infill grooves makes the connection between the wall block and the outer components of the retaining wall (such as sand and gravel retaining walls) more secure.
[0018] Preferably, a rectangular through hole A is provided on the bottom wall surface of the wall block, which is connected to the two filling grooves.
[0019] The rectangular through-hole A facilitates concrete filling and improves construction efficiency.
[0020] Preferably, the sidewall of the wall block has a rectangular through-hole B that extends through both sides and the middle partition block and connects to the two filling grooves. The rectangular through-hole B facilitates concrete filling, enhances the lateral connection between the wall blocks, and improves overall stability.
[0021] The circular socket A is located below the rectangular through hole B, and the circular socket B is located below the U-shaped opening.
[0022] Compared with the prior art, the technical effects and advantages of this utility model are:
[0023] The retaining wall blocks of this mountain highway utilize a design with right-angled trapezoidal protrusions and openings to achieve precise splicing between upper and lower layers, ensuring the structural integrity. Adjacent wall blocks are laterally connected via a combination of U-shaped slots and inserts. The wall blocks are equipped with infill grooves for filling with aggregate concrete, thereby enhancing the load-bearing capacity and stability of the blocks. A three-dimensional anchoring system is formed by installing transverse, longitudinal, and vertical anchor bars, significantly improving the connectivity between wall blocks and the overall structural stability.
[0024] Through precise modular splicing and infill reinforcement, the structure can better resist pressure from the soil and hillside, improving the stability of the retaining wall. The application of a tight splicing and anchoring system between the wall blocks makes the entire retaining wall structure a solid whole, improving its shear and bending moment resistance. The modular design makes the construction process simpler and faster, reducing construction difficulty and time.
[0025] This structure can be customized to suit different terrains and geological conditions, exhibiting strong adaptability. Due to its rapid construction speed and high material efficiency, overall project costs can be reduced. Through the design of decorative walls and blocks, the entire structure can be not only highly functional but also aesthetically pleasing, harmonizing with the surrounding environment. This structural design helps reduce environmental impact, for example, by minimizing disturbance and damage to the foundation. Attached Figure Description
[0026] Figure 1 This is a first-view diagram of the present invention;
[0027] Figure 2 This is a second-view diagram of the present invention;
[0028] Figure 3 This is a structural schematic diagram of the two splicing wall blocks of this utility model;
[0029] Figure 4 This is a structural schematic diagram of the wall block with anchor bars according to this utility model;
[0030] Figure 5 This utility model Figure 4 Top view;
[0031] Figure 6 This is a schematic diagram of the structure of the wall block of this utility model;
[0032] Figure 7 This utility model Figure 6 The left view.
[0033] In the diagram: 100, retaining wall; 200, wall block; 21, filling groove; 22, perimeter; 23, U-shaped groove; 24, insert block; 25, right-angled trapezoidal protrusion; 26, right-angled trapezoidal opening; 27, intermediate partition block; 28, decorative wall surface; 29, U-shaped opening; 210, rectangular through hole A; 211, rectangular through hole B; 212, circular insert hole A; 213, circular insert hole B; 31, horizontal anchor bar; 32, longitudinal anchor bar; 33, vertical anchor bar. Detailed Implementation
[0034] 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 embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] The following combination Figure 1-7 This application will be described in further detail.
[0036] This application discloses a retaining structure for mountain roads, including a retaining wall 100, which is composed of several wall blocks 200 joined together; the bottom wall blocks 200 are placed on a foundation. Ensuring that the wall blocks 200 are in close contact with the foundation can effectively distribute and bear the load transmitted from the upper structure, improving the stability and safety of the overall structure. Uniform load distribution helps reduce the risk of uneven foundation settlement, which is crucial for the long-term maintenance of the structure's safety and functionality.
[0037] Wall block 200 is a precast concrete block. Precast concrete blocks are produced in a factory, allowing for construction in environments unaffected by weather, thus improving construction efficiency and shortening the project cycle. Factory production allows for better quality control of wall block 200, ensuring dimensional accuracy and material strength, thereby guaranteeing the reliability of the overall structure. Precast blocks reduce on-site work, saving labor and equipment costs, and also reducing construction waste.
[0038] The wall block 200 has two filling grooves 21 for use with aggregate concrete, and the two filling grooves 21 are separated by a partition block 27. The presence of the partition block 27 makes the concrete distribution in the filling grooves 21 more uniform, which helps to improve the shear strength and stability of the wall block 200. The uniformly filled concrete can better withstand shear forces, enhance the shear capacity of the wall block 200, and thus improve the overall structural performance.
[0039] U-shaped slots 23 are provided on the outer edges 22 of the two filling grooves 21. After the two adjacent wall blocks 200 are spliced together, insert blocks 24 are horizontally inserted into the U-shaped slots 23 on the two connecting edges 22.
[0040] A decorative wall surface 28 is provided on the wall block 200 on one side of the right-angled trapezoidal protrusion 25. A U-shaped opening 29, connected to two filling grooves 21, is provided on the side of the wall block 200 facing away from the decorative wall surface 28. The decorative wall surface 28 provides an appearance that blends harmoniously with the surrounding environment, enhancing the aesthetics of the structure and improving the visual effect. The U-shaped opening 29, connected to the filling grooves 21, makes the connection between the wall block 200 and the outer components of the retaining wall 100 more secure, strengthening the overall structural stability.
[0041] Rectangular through holes A210, which are connected to two filling grooves 21, are respectively opened on the bottom wall surface of the wall block 200.
[0042] The presence of the rectangular through-hole A210 makes it easier for concrete to be filled into the filling groove 21, reducing construction difficulty and time, and improving construction efficiency. The design of the rectangular through-hole A210 helps to ensure that the concrete in the filling groove 21 is dense, reducing the possibility of gaps and voids, and improving the stability of the wall block 200.
[0043] The sidewalls of wall block 200 are provided with rectangular through holes B211 that penetrate the two side edges 22 and the central partition block 27 and connect to the two filling grooves 21. The rectangular through holes B211 make the lateral connection between wall blocks 200 more robust, enhancing the stability of the entire structure, especially when resisting horizontal loads. The design of the rectangular through holes B211 helps the concrete form a continuous filling layer between the wall blocks 200, thereby enhancing the overall stability between the wall blocks 200.
[0044] The top of one side of the wall block 200 is provided with a right-angled trapezoidal protrusion 25 and the bottom is provided with a right-angled trapezoidal opening 26. When the upper and lower wall blocks 200 are spliced together, the right-angled trapezoidal protrusion 25 of the lower wall block 200 is inserted into the right-angled trapezoidal opening 26 of the upper wall block 200.
[0045] When the upper and lower wall blocks 200 are spliced together, the upper wall block 200 is spliced in the middle position between the two adjacent wall blocks 200 on the left and right.
[0046] A circular insertion hole A212 is provided on the side wall of wall block 200 below the rectangular through hole B211, penetrating the wall block 200. A transverse anchor bar 31 is inserted into the circular insertion hole A212. A circular insertion hole B213 is provided on wall block 200 below the U-shaped opening 29, communicating with the filling groove 21. A longitudinal anchor bar 32 is inserted into the circular insertion hole B213, staggered with the transverse anchor bar 31 and located above the transverse anchor bar 31. The staggered arrangement of the transverse anchor bar 31 and longitudinal anchor bar 32 in the circular insertion holes A212 and B213 provides an additional anchoring effect, making the connection between wall blocks 200 tighter and improving the overall stability of the structure. The combined use of the transverse anchor bar 31 and longitudinal anchor bar 32, especially the transverse anchor bar 31 in the circular insertion hole A212, effectively increases the pull-out resistance of the wall block 200, preventing the wall block 200 from being lifted by soil pressure.
[0047] Vertical anchor bars 33, located in the filling groove 21, are inserted into the inner sides of the four corners of the rectangular groove formed by the transverse anchor bars 31 and the longitudinal anchor bars 32. By inserting the vertical anchor bars 33 into the inner sides of the four corners of the rectangular groove, and staggering them with the transverse anchor bars 31 and the longitudinal anchor bars 32, a three-dimensional anchoring network is formed, enhancing the three-dimensional connection between the wall blocks 200 and making the entire structure more stable. This anchoring method improves the wall block 200's ability to resist various loads (including shear force, bending force, and tensile force), ensuring the stability of the structure under complex geological conditions and external environmental conditions.
[0048] In this retaining structure for mountain roads, wall blocks 200 are interconnected via specific right-angled trapezoidal protrusions 25 and right-angled trapezoidal openings 26, forming a stable and robust retaining wall 100 structure. The filling grooves 21 on the wall blocks 200 are used to fill with aggregate concrete, enhancing the stability and integrity of the wall blocks 200. The connection between the wall blocks 200 and the overall stability are improved by setting transverse anchor bars 31, longitudinal anchor bars 32, and vertical anchor bars 33.
[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A retaining structure for mountain roads, comprising a retaining wall (100), characterized in that, The retaining wall (100) is composed of several wall blocks (200) joined together; The wall block (200) is provided with two filling grooves (21) for filling with stone concrete, and U-shaped grooves (23) are opened on the outer edge (22) of the two filling grooves (21). After the two adjacent wall blocks (200) are spliced together, insert blocks (24) are horizontally inserted into the U-shaped grooves (23) on the two connecting edges (22). The top of one side of the wall block (200) is provided with a right-angled trapezoidal protrusion (25) and the bottom is provided with a right-angled trapezoidal opening (26). When the upper and lower wall blocks (200) are spliced together, the right-angled trapezoidal protrusion (25) of the lower wall block (200) is inserted into the right-angled trapezoidal opening (26) of the upper wall block (200). When the upper and lower wall blocks (200) are spliced together, the upper wall block (200) is spliced in the middle of the two adjacent wall blocks (200) on the left and right; A circular insertion hole A (212) is provided on the side wall of the wall block (200) through the wall block (200). A horizontal anchor bar (31) is inserted into the circular insertion hole A (212). A circular insertion hole B (213) is provided on the wall block (200) and is connected to the filling groove (21). A longitudinal anchor bar (32) is inserted into the circular insertion hole B (213) and is interposed with the horizontal anchor bar (31) and located above the horizontal anchor bar (31). Vertical anchor bars (33) located in the filling groove (21) are inserted into the inner sides of the four corners of the rectangular groove formed by the transverse anchor bars (31) and the longitudinal anchor bars (32).
2. The retaining structure for mountain roads according to claim 1, characterized in that: The bottom wall block (200) is placed on the foundation.
3. The retaining structure for mountain roads according to claim 1, characterized in that: The wall block (200) is a precast concrete block.
4. The retaining structure for mountain roads according to claim 1, characterized in that: The two filling slots (21) are separated by a middle spacer (27).
5. A retaining structure for mountain roads according to claim 4, characterized in that: A decorative wall surface (28) is provided on the wall block (200) on one side of the right-angled trapezoidal protrusion (25), and a U-shaped opening (29) is provided on the wall block (200) on the side away from the decorative wall surface (28), which is connected to two filling grooves (21).
6. The retaining structure for mountain roads according to claim 1, characterized in that: The bottom wall of the wall block (200) is provided with rectangular through holes A (210) that are connected to the two filling grooves (21).
7. A retaining structure for mountain roads according to claim 5, characterized in that: The side wall of the wall block (200) has a rectangular through hole B (211) that runs through the two side edges (22) and the middle partition block (27) and is connected to the two filling grooves (21).