A reinforced soil retaining wall concrete panel structure

Abstract

The utility model discloses a reinforced earth retaining wall concrete faceplate structure relates to retaining wall technical field, including the basement with the capstone of being located above, a plurality of modules are spliced between the basement and capstone, and the adjacent two modules are stacked to form the faceplate unit. The utility model discloses through the slope orientation automatic correction horizontal deviation, makes the module quick fall into the design position, can complete the installation in the process of splicing, improves the accuracy of positioning between faceplate unit, through the quantity of module can be adjusted the height of retaining wall flexibly, simultaneously, the mutual superposition of multiple modules can accurately control the slope of retaining wall, need not rely on artificial line leveling or formwork support, make the integrity of concrete surface layer high and more beautiful, and the slope ratio self -stabilizing design makes the faceplate natural inclination, and the stress direction of reinforced earth body is more suitable, can reduce the earth pressure concentration of faceplate back, reduces the structure overturning risk.

Description

Technical Field

[0001] This utility model relates to the field of retaining wall technology, and in particular to a reinforced soil retaining wall concrete panel structure. Background Technology

[0002] Reinforced soil retaining walls are commonly used slope protection structures in civil engineering. They are widely used in slope projects such as highways, railways, water conservancy, and factories due to their significant advantages such as safety, reliability, economy, and ease of construction. The core principle is to transfer the lateral pressure of the slope soil to the interior of the reinforced body through the synergistic effect of the panel and the reinforcement material. The friction and adhesion between the reinforcement material and the soil constrain the deformation of the soil, thereby achieving slope stability.

[0003] As a crucial component of reinforced soil retaining walls, the panel not only provides aesthetic protection but also directly impacts the overall load-bearing capacity and construction efficiency of the retaining wall. Common panel types include geogrid-wrapped planting bags, reinforced concrete panels, and ordinary concrete block panels. Geogrid-wrapped planting bags are only suitable for gentle slopes, requiring significant land use, exhibiting large deformation under stress, and making slope control difficult. Furthermore, the planting bags require substantial maintenance costs. Reinforced concrete panels, while suitable for steep slopes and high-load conditions, rely on external supports or manual adjustments to achieve wall tilt. In cast-in-place construction, formwork support is challenging, concrete pouring efficiency is low, slope control accuracy is poor, and unsightly surfaces are common at construction joints. Ordinary concrete block panels are mostly flat designs, limited to vertical slopes, resulting in large installation errors, a lack of effective connection between the block surface and the reinforcement, and a tendency to deform or even overturn under stress. The construction height is also significantly limited.

[0004] Furthermore, existing retaining walls suffer from common problems such as the need for manual slope adjustment, weak horizontal connections prone to cracking and deformation, and reliance on embedded parts for hoisting, leading to high costs and susceptibility to damage. These issues severely impact the construction efficiency, structural stability, and economy of reinforced soil retaining walls. Therefore, this application proposes a concrete panel structure for reinforced soil retaining walls. Summary of the Invention

[0005] The purpose of this utility model is to solve the shortcomings of existing technologies, such as the difficulty in accurately controlling the slope ratio, the easy deformation of the connection between modules after being subjected to stress, and the low construction efficiency, and to propose a reinforced soil retaining wall concrete panel structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A reinforced soil retaining wall concrete panel structure includes a base and a cap stone located above it. Multiple modules are spliced ​​between the base and the cap stone, and two adjacent modules are stacked one on top of the other to form a panel unit. Tenons are provided at the bottoms of the multiple modules, mortise grooves are formed at the tops of the multiple modules, and the distance L1 between the tenon and the edge of the module is less than the distance L2 between the mortise groove and the edge of the module, that is, L1 < L2, and the width of the bottom of the tenon is equal to the width of the bottom of the mortise groove.

[0007] As a further preference of this technical solution, an assembly groove is formed at the top of the base, and the assembly groove is trapezoidal in reverse, and the size of the assembly groove is equal to that of the mortise groove; A plurality of positioning grooves are formed on the upper surface of the base, and the plurality of positioning grooves are arranged at equal intervals.

[0008] As a further preference of this technical solution, a matching block is provided at the bottom of the coping stone, the matching block is trapezoidal, and the size of the matching block is equal to that of the tenon; A plurality of positioning blocks are fixedly connected to the lower surface of the coping stone, and the length of the positioning block is equal to the depth of the positioning groove.

[0009] As a further preference of this technical solution, a plurality of reserved holes are formed in the multiple modules, and the reserved holes are in the same extending direction as the tenon, and steel bars are respectively arranged in the plurality of reserved holes.

[0010] As a further preference of this technical solution, a plurality of limiting grooves are formed on the upper surface of the module, a plurality of limiting rods are fixedly connected to the bottom of the module, the positions of the limiting grooves correspond to the positions of the limiting rods respectively, and the depth of the limiting groove is equal to the length of the limiting rod.

[0011] As a further preference of this technical solution, a plurality of first partitions are fixedly connected to the top of the module, a plurality of second partitions are fixedly connected to the bottom of the module, the first partitions and the limiting grooves are respectively arranged on both sides of the mortise groove, and the second partitions and the limiting rods are respectively arranged on both sides of the tenon.

[0012] The utility model has the following beneficial effects: 1. The utility model can hoist the module through the provided reserved holes.配合顶部与底部设置的榫槽与凸榫,通过斜面导向自动校正水平偏差,使模块快速落入设计位置,在拼接的过程中能够快速完成安装,提高面板单元之间定位的精准度,通过调整模块的数量能够灵活调节挡土墙的高度,同时多个模块相互叠加能够精确控制挡土墙的坡度,无需依赖人工拉线找平或模板支护,使混凝土面层的整体性高且较为美观,坡比自稳设计使面板自然倾斜,与加筋土体的受力方向更契合,可减少面板背面的土压力集中,降低结构倾覆风险。With the mortise grooves and tenons provided at the top and bottom, the horizontal deviation is automatically corrected through the inclined plane guidance, so that the module quickly falls into the designed position. During the splicing process, the installation can be quickly completed, improving the positioning accuracy between the panel units. The height of the retaining wall can be flexibly adjusted by adjusting the number of modules. At the same time, the superposition of multiple modules can accurately control the slope of the retaining wall, without relying on manual wire leveling or formwork support, making the concrete surface layer highly integral and relatively beautiful. The slope ratio self-stabilizing design makes the panel tilt naturally, which is more in line with the stress direction of the reinforced soil body, can reduce the concentration of soil pressure on the back of the panel, and reduce the risk of structural overturning.

[0013] 2. This utility model, by setting a limiting rod and a limiting groove on one side of the module, allows the limiting rod to be inserted into the corresponding limiting groove during splicing. Together with the first and second partitions set on the other side, it can make the connection between modules tighter, reduce the sliding displacement caused by the filling mortar, and provide sufficient support for the connection between modules. It also avoids deformation caused by uneven stress on the steel bars due to the large lateral load of the retaining wall. When the middle of the module sags due to its own weight and the pressure of the filling soil, the first and second partitions form multi-point support by pressing against each other, which can limit the deflection of the module at the mid-span, ensure the flatness of the panel surface, and reduce mortar cracking caused by deformation.

[0014] 3. It enables dry assembly operations, eliminating the need for large-scale on-site formwork and concrete pouring, reducing reliance on carpenters and formwork workers, shortening the construction period and reducing costs.

[0015] 4. This semi-rigid structure allows for targeted disassembly and replacement of modules, a maintenance feature not available in traditional retaining walls. Attached Figure Description

[0016] 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 drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main structure of a reinforced soil retaining wall concrete panel structure proposed in this utility model. Figure 2 This is a top view of the base structure of a reinforced soil retaining wall concrete panel structure proposed in this utility model. Figure 3 This is a lower view of the cap stone structure of a reinforced soil retaining wall concrete panel structure proposed in this utility model. Figure 4 This is an exploded structural diagram of a module of a reinforced soil retaining wall concrete panel structure proposed in this utility model. Figure 5 This is a bottom view of the module of a reinforced soil retaining wall concrete panel structure proposed in this utility model.

[0018] In the diagram: 1. Base; 11. Assembly slot; 12. Positioning slot; 2. Cap stone; 21. Matching block; 22. Positioning block; 3. Module; 31. Reserved hole; 32. Steel rod; 33. Tenon; 34. Mortise and tenon groove; 35. Limiting groove; 36. Limiting rod; 37. First partition; 38. Second partition. Detailed Implementation

[0019] 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.

[0020] This utility model provides a technical solution: such as Figure 1-5 As shown, a reinforced soil retaining wall concrete panel structure includes a base 1 and a capstone 2 located above it. Multiple modules 3 are spliced ​​between the base 1 and the capstone 2, and adjacent modules 3 are stacked vertically to form a panel unit. Figure 2 and Figure 3 As shown, the top of the base 1 is provided with an assembly groove 11, which is set as an inverted trapezoid. The size of the assembly groove 11 is equal to that of the tenon groove 34 on the top of the module 3. The upper surface of the base 1 is provided with multiple positioning grooves 12, which are arranged at equal intervals. The bottom of the capstone 2 is provided with a matching block 21, which is set as a trapezoid. The size of the matching block 21 is equal to that of the tenon 33 at the bottom of the module 3. The inverted trapezoidal side forms a surface contact with the surface of the tenon 33. Compared with the line contact of the rectangular groove, it can distribute the vertical load transmitted by the module 3 to the entire cross section of the base 1, avoiding concrete cracking caused by local stress concentration. The lower surface of the capstone 2 is fixedly connected with multiple positioning blocks 22, and the length of the positioning block 22 is equal to the depth of the positioning groove 12. Multiple modules 3 are provided with reserved holes 31, and the extension direction of the reserved holes 31 is the same as that of the tenon 33. Steel rods 32 are respectively provided in the multiple reserved holes 31.

[0021] Specifically, during the construction process, first backfill and compact the lower layer of soil into the foundation, then place the base 1 above the soil to complete the laying of the bottom of the concrete panel. Pour some mortar on the top of the base 1, lay reinforcing materials such as geotextiles above the base 1 and straighten them. After adjusting the position of the geotextile, lay another layer of mortar on the upper layer of the geotextile. Lift or carry the module 3 by external equipment or workers and place it on the geotextile, and make the tenon 33 at the bottom of the module 3 insert into the corresponding assembly groove 11. Fill the gap between the base 1 and the module 3 with mortar. By setting the difference in the distance of the tenon 33 from both ends of the module 3 (the tenon 33 is not set at the center of the module 3), the module 3 is finally installed obliquely above the base 1, and a shorter platform is formed at the top edge position of the base 1 to achieve precise control of the slope ratio of the concrete panel. After a horizontal layer of module 3 is laid, pour cement mortar into the reserved hole 31 and insert a steel bar 32 into the reserved hole 31 to connect adjacent modules 3 to form a horizontal rigid connection, enhancing the lateral integrity of the panel and avoiding cracking or dislocation after being stressed. Preferably, the inner wall of the reserved hole 31 can be processed into a corrugated or threaded shape to increase the grip force. Repeat the layered laying of the above-mentioned mortar and geotextile, and the number of stacked modules 3 can be flexibly adjusted to adjust the height of the retaining wall. When the module 3 is built to the designed height, install the coping stone 2. The matching block 21 at the bottom of the coping stone 2 needs to engage with the mortise groove 34 of the top layer module 3, and the positioning block 22 on the lower surface is inserted into the limiting groove 35 of the top layer module 3 to ensure that the coping stone 2 is firmly installed in the correct position. The gap between the coping stone 2 and the module 3 is filled with waterproof mortar, and the surface is leveled and polished to enhance the sealing and aesthetics of the structure. After the construction is completed, clean the surface of the panel, repair the mortar defects, and check the smoothness of the reserved drainage holes to ensure that the water seeping behind the panel can be discharged smoothly.

[0022] As Figure 4 shown, tenons 33 are provided at the bottoms of multiple modules 3, mortise grooves 34 are provided at the tops of multiple modules 3, and the distance L1 from the tenon 33 to the edge of the module 3 is less than the distance L2 from the mortise groove 34 to the edge of the module 3. As Figure 4 shown, that is, L1 < L2. The width of the bottom of the tenon 33 is equal to the width of the bottom of the mortise groove 34. It should be noted that after the tenon 33 is embedded in the mortise groove 34, a tight surface contact can be formed at the bottom to avoid uneven stress caused by longitudinal gaps. Through the design of the dimensional difference of L1 < L2, when the upper and lower modules 3 are stacked, the tenon 33 of the lower module 3 will shift inward relative to the mortise groove 34 of the upper module 3, causing the entire panel unit to naturally form a preset slope, without relying on manual wire leveling or formwork support, and completely achieved through the structure of the module 3 itself, fundamentally avoiding the problems of large slope ratio deviation and difficult subsequent adjustment in the traditional masonry process.

[0023] As Figure 5As shown, the upper surface of module 3 has multiple limiting grooves 35, and the bottom of module 3 is fixedly connected to multiple limiting rods 36. The positions of the limiting grooves 35 correspond to the positions of the limiting rods 36, and the depth of the limiting grooves 35 is equal to the length of the limiting rods 36. The top of module 3 is fixedly connected to multiple first partitions 37, and the bottom of module 3 is fixedly connected to multiple second partitions 38. The first partitions 37 and the limiting grooves 35 are respectively set on both sides of the tenon 34, and the second partitions 38 and the limiting rods 36 are respectively set on both sides of the tenon 33. More preferably, the end of the limiting rod 36 can be conical or hemispherical, and the entrance of the limiting groove 35 is chamfered or flared. This can significantly reduce the installation accuracy requirements and achieve guiding alignment, ensuring smooth insertion even with slight deviations.

[0024] Furthermore, when modules 3 are stacked, the limiting rod 36 of the lower module 3 will be precisely embedded in the limiting groove 35 of the upper module 3, forming a vertical rigid constraint. The contact surface between the limiting groove 35 and the limiting rod 36 can resist the sliding of the module 3 in the horizontal direction, share part of the vertical load, reduce the stress on the interlocking surface of the tenon 33 and the mortise 34, avoid damage to the interlocking surface under long-term load, and at the same time avoid the deformation of the steel rod 32 due to uneven stress. Furthermore, when modules 3 are stacked, the first partition 37 and the second partition 38 are staggered. When the retaining wall is subjected to lateral earth pressure, the panel will have a tendency to bend outward. At this time, the first partition 37 and the second partition 38 can abut against each other, effectively limiting the bending deformation of the panel, effectively resisting loads such as backfill pressure and vehicle vibration, and improving the overall rigidity and bending resistance of the panel.

[0025] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model are included within the scope of protection of the present utility model.

Claims

1. A reinforced soil retaining wall concrete panel structure comprising a base (1) and an overlying capstone (2), characterised in that, A plurality of modules (3) are spliced between the base (1) and the coping stone (2), and two adjacent modules (3) are stacked up and down to form a panel unit; Tenons (33) are provided at the bottoms of the plurality of modules (3), mortise grooves (34) are provided at the tops of the plurality of modules (3), and the distance L1 between the tenon (33) and the edge of the module (3) is less than the distance L2 between the mortise groove (34) and the edge of the module (3), that is, L1 < L2, and the width of the bottom of the tenon (33) is equal to the width of the bottom of the mortise groove (34).

2. A reinforced soil retaining wall concrete panel structure according to claim 1, characterised in that, An assembly groove (11) is provided at the top of the base (1), and the assembly groove (11) is trapezoidal in reverse, and the size of the assembly groove (11) is equal to that of the mortise groove (34); A plurality of positioning grooves (12) are provided on the upper surface of the base (1), and the plurality of positioning grooves (12) are arranged at equal intervals.

3. A reinforced soil retaining wall concrete panel structure according to claim 1, characterised in that, A matching block (21) is provided at the bottom of the coping stone (2), the matching block (21) is trapezoidal, and the size of the matching block (21) is equal to the size of the tenon (33); A plurality of positioning blocks (22) are fixedly connected to the lower surface of the coping stone (2), and the length of the positioning block (22) is equal to the depth of the positioning groove (12).

4. A reinforced soil retaining wall concrete panel structure according to claim 1, wherein, A plurality of reserved holes (31) are provided on the plurality of modules (3), and the reserved holes (31) are in the same extending direction as the tenon (33), and steel bars (32) are respectively arranged in the plurality of reserved holes (for reference only, it needs to be determined according to the actual situation whether it is a steel bar).

5. A reinforced soil retaining wall concrete panel structure according to claim 1 wherein, A plurality of limiting grooves (35) are provided on the upper surface of the module (3), a plurality of limiting rods (36) are fixedly connected to the bottom of the module (3), the positions of the limiting grooves (35) correspond to the positions of the limiting rods (36) respectively, and the depth of the limiting grooves (35) is equal to the length of the limiting rods (36).

6. A reinforced soil retaining wall concrete panel structure according to claim 5 wherein, A plurality of first partitions (37) are fixedly connected to the top of the module (for reference only, it needs to be determined according to the actual situation whether it is a partition), a plurality of second partitions (38) are fixedly connected to the bottom of the module (3), the first partition (37) and the limiting groove (35) are respectively arranged on both sides of the mortise groove (34), and the second partition (38) and the limiting rod (36) are respectively arranged on both sides of the tenon (33).

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