Roadbed slope protection structure

Abstract

The invention relates to the technical field of slope protection, in particular to a roadbed slope protection structure which comprises anchor rods, a main framework, a bottom edging and a top edging. The anchor plate keeps applying acting force pointing to the roadbed slope to the main connecting plate, the bottom edging and the top edging which are spliced with the anchor plate, and has the beneficial effects that the anchor plate applies the acting force pointing to the roadbed slope to the main connecting plate, the bottom edging and the top edging which are spliced with the anchor plate in a mechanical anchoring manner, so that an active protection mechanism is formed; the protection structure can integrally apply pressure to the roadbed slope, side slope soil lateral pressure is effectively counteracted, the anti-sliding capacity of the structure is improved, and compared with a traditional passive protection mode, the structure stability is remarkably improved, and the slope instability risk is reduced. On-site wet operation is reduced through modular assembly, and the construction period is shortened; the component splicing mode simplifies the construction process, lowers the technical threshold and is suitable for large-scale popularization and application.

Description

Technical Field

[0001] The present invention relates to the technical field of slope protection, and in particular to a roadbed slope protection structure. Background Art

[0002] Roadbed slope protection is a crucial component in road construction to ensure slope stability and prevent soil erosion. Traditional protective structures are often constructed using methods such as on-site casting. These components are poorly standardized and difficult to flexibly adjust to the slope's actual dimensions. This results in poor adaptability to different roadbed slopes. Construction is challenging and the protective effect is poor when faced with complex terrain or slopes with specific dimensions.

[0003] To address these issues, prefabricated roadbed slope protection components have emerged. For example, patent application number 202011080148.2 discloses an assembled roadbed slope protection structure and construction method. This structure utilizes prefabricated modular components, ensuring controlled quality and minimizing wet work surfaces. It also reduces pollution from solid waste, dust, sewage, and noise, minimizing the impact on the construction site environment. Furthermore, construction is less susceptible to weather impacts, resulting in high efficiency.

[0004] However, its splicing method is a simple assembly, and no prestress is applied to the roadbed slope. Therefore, after rain erosion and settlement of the roadbed slope, the protective structure is prone to loosening, thereby reducing the quality of protection. That is, this technical solution is still passive protection, and the risk of slope instability is high. Summary of the Invention

[0005] (1) Technical issues to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a roadbed slope protection structure, which solves the technical problem in the prior art that the assembled roadbed slope protection structure does not apply prestress to the roadbed slope, resulting in a high risk of slope instability.

[0007] (2) Technical solution

[0008] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0009] In the first aspect, the present invention provides a roadbed slope protection structure, comprising anchor rods, a main frame, a bottom edging and a top edging; the main frame is arranged as a plurality of groups extending vertically and distributed in parallel, and the main frames each include an anchor plate and a main connecting plate, the anchor plates and the main connecting plates are vertically staggered and spliced ​​in sequence, and both vertical ends of the main frame are anchor plates; the bottom edging and the top edging are arranged in plurality, the lateral ends of the bottom edging correspond to the left and right sides of the two laterally adjacent lowermost anchor plates, and the lateral ends of the top edging correspond to the left and right sides of the two laterally adjacent topmost anchor plates; wherein the anchor plates maintain the force applied to the main connecting plates, the bottom edging and the top edging spliced ​​therewith directed towards the roadbed slope.

[0010] (3) Beneficial effects

[0011] The beneficial effects of the present invention are as follows: the roadbed slope protection structure of the present invention adopts a modular structure, and each component is prefabricated in advance in the factory, which is conducive to improving the degree of standardization, and the size of each component can be flexibly adjusted according to the size of the slope during the prefabrication process, thereby improving the adaptability of the roadbed slope protection structure to different roadbed slopes.

[0012] The main skeleton module is constructed by alternating vertically extending anchor plates and main connecting plates to form a standardized frame unit. The anchor plates are anchored to the roadbed slope via anchor rods, ensuring their stability. At the same time, the anchor rods provide pressure directed towards the roadbed slope, ensuring a stable and reliable fit of the anchor plates to the roadbed slope.

[0013] Since the main frame is not a one-piece structure, but includes staggered anchor plates and main connecting plates, its length setting is more flexible.

[0014] The bottom and top trims serve as transverse connectors, allowing for quick connection to the anchor plate through prefabrication. The left and right sides of the anchor plate are joined to the top and bottom trims to form a closed slope protection system, enhancing the integrity and stability of the protective structure.

[0015] The anchor plate mechanically anchors the main connecting plate, bottom trim, and top trim to the roadbed slope, creating an active protection mechanism. This allows the integrated protection structure to apply pressure to the roadbed slope, effectively offsetting the lateral pressure of the slope soil and improving the structure's anti-slip ability. Compared with traditional passive protection methods, this significantly enhances structural stability and reduces the risk of slope instability. Modular assembly reduces on-site wet work and shortens construction time. The component splicing method simplifies the construction process, lowers the technical threshold, and is suitable for large-scale promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the structural schematic diagrams of the roadbed slope protection structure of the present invention;

[0017] Figure 2 This is the second structural diagram of the roadbed slope protection structure of the present invention;

[0018] Figure 3 This is the third structural diagram of the roadbed slope protection structure of the present invention;

[0019] Figure 4 Schematic diagram of the matching structure of the first plug-in block and the first slot of the present invention;

[0020] Figure 5 It is a schematic diagram of the matching structure of the anchor plate and the main connecting plate, or the anchor plate and the top edge of the present invention.

[0021] [Description of Reference Numerals]

[0022] 1. Anchor rod;

[0023] 2. Main frame; 21. Anchor plate; 22. Main connecting plate; A. First inclined portion; B. Second inclined portion; C. First protrusion; D. First groove;

[0024] 3. Bottom edging;

[0025] G, first plug-in block; H, first slot; I, third bevel portion; J, fourth bevel portion;

[0026] 4, top edge; K, fifth bevel; L, sixth bevel; M, second protrusion; N, second groove;

[0027] 5. Sub-frame; 51. Curved plate; E. Convex part; F. Concave part;

[0028] 6. Frame;

[0029] O, second plug-in block; P, second slot;. DETAILED DESCRIPTION

[0030] In order to better explain the present invention, so as to facilitate understanding, the following Figure 1-Figure 5 , the present invention is described in detail through specific implementation methods. Figure 1 The orientation is referenced.

[0031] Example:

[0032] Reference Figure 1-Figure 5An embodiment of the present invention provides a roadbed slope protection structure, including anchor rods 1, a main frame 2, a bottom edging 3 and a top edging 4; the main frame 2 is arranged to extend vertically and be distributed in multiple groups in parallel, and the main frame 2 includes anchor plates 21 and main connecting plates 22, the anchor plates 21 and the main connecting plates 22 are vertically staggered and spliced ​​in sequence, and both vertical ends of the main frame 2 are anchor plates 21; the bottom edging 3 and the top edging 4 are each arranged in multiples, and the lateral ends of the bottom edging 3 correspond to the left and right sides of the two lowermost anchor plates 21 adjacent to the lateral sides, and the lateral ends of the top edging 4 correspond to the left and right sides of the two topmost anchor plates 21 adjacent to the lateral sides; wherein the anchor plates 21 maintain the force applied to the bottom edging 3 and the top edging 4 spliced ​​therewith directed to the roadbed slope.

[0033] In this embodiment, the roadbed slope protection structure adopts a modular structure, and each component is prefabricated in the factory in advance, which is conducive to improving the degree of standardization. In addition, during the prefabrication process, the size of each component can be flexibly adjusted according to the size of the slope, thereby improving the adaptability of the roadbed slope protection structure to different roadbed slopes.

[0034] The main skeleton 2 module is constructed by alternating vertically extending anchor plates 21 and main connecting plates 22 to form a standardized frame unit. The anchor plates 21 are anchored to the roadbed slope via anchor rods 1, ensuring their stability. Furthermore, the anchor rods 1 maintain pressure directed toward the roadbed slope, ensuring a stable and reliable fit of the anchor plates 21 against the roadbed slope.

[0035] Since the main frame 2 is not an integral structure but includes staggered anchor plates 21 and main connecting plates 22, its length setting is more flexible.

[0036] The bottom trim 3 and top trim 4 serve as transverse connectors, which are prefabricated and assembled to quickly connect with the anchor plate 21. The left and right sides of the anchor plate 21 are connected to the top trim 4 and bottom trim 3 to form a closed slope protection system, improving the integrity and stability of the protection structure.

[0037] Because the present invention always uses an anchor plate 21 to compress two adjacent components, and each anchor plate 21 is prestressed by an anchor rod 1, it ensures that all components are pressed against the roadbed slope, forming an active protection mechanism. This allows the protective structure to apply pressure to the roadbed slope in an integrated manner, effectively offsetting the lateral pressure of the slope soil and improving the structure's anti-slip ability. Compared with traditional passive protection methods, it significantly enhances structural stability and reduces the risk of slope instability. Modular assembly reduces on-site wet work and shortens construction time; the component splicing method simplifies the construction process, lowers the technical threshold, and is suitable for large-scale promotion and application.

[0038] Standardized production reduces material loss and labor costs, modular assembly shortens construction period, and the overall cost is reduced by about 20%-30% compared with traditional solutions.

[0039] Prefabricated components can be made of weather-resistant materials to adapt to extreme environments such as high cold, humidity and heat; the modular design facilitates later maintenance and replacement, extending the service life of the structure.

[0040] In a set of main skeletons 2, the opposite ends of the anchor plate 21 and the main connecting plate 22 are a first inclined portion A and a second inclined portion B that match each other, and the first inclined portion A corresponding to the anchor plate 21 extends away from the side of the roadbed slope toward the main connecting plate 22 spliced ​​with it.

[0041] In this embodiment, the first inclined portion A and the second inclined portion B are engaged with each other, so that the anchoring force of the anchor plate 21 can be transmitted to the main connecting plate 22, so that the main connecting plate 22 can keep pressing the roadbed slope.

[0042] Specifically, the first inclined surface A forms a wedge-shaped structure, while the second inclined surface B complements the first inclined surface A. The inclined surfaces fit together to achieve a tight connection between the anchor plate 21 and the main connecting plate 22. The anchor plate 21 applies preload via the anchor rod 1. This, on the one hand, forces the main connecting plate 22 to press against the roadbed slope, effectively resisting lateral pressure from the slope soil and enhancing the overall anti-slip capability of the structure. It also tightly connects the adjacent main connecting plates 22 and anchor plates 21, limiting relative displacement between the anchor plates 21 and the main connecting plates 22. This allows for a certain range of splicing errors, which are automatically corrected by the wedge-shaped action of the inclined surfaces, reducing construction difficulty.

[0043] The bevel processing of the anchor plate 21 and the main connecting plate 22 must ensure high precision, and the bevel angle deviation should be controlled within ±0.5° to ensure that the splicing surface fits tightly.

[0044] The preload of anchor rod 1 needs to be calculated and determined based on the slope soil parameters and structural dimensions, and is generally controlled at 1.2-1.5 times the design value to ensure that the friction force of the inclined surface is sufficient to resist the slope soil pressure.

[0045] The joint surfaces of prefabricated components should be polished to remove surface slurry and impurities and improve the fit of the inclined surfaces.

[0046] A first groove D and a first protrusion C are also formed on the first inclined portion A and the second inclined portion B respectively; the first protrusion C and the first groove D can match each other when the first inclined portion A and the second inclined portion B match, so as to limit the freedom of relative lateral displacement of the first inclined portion A and the second inclined portion B.

[0047] In this embodiment, the lateral restraint function of the first protrusion C and the first groove D significantly enhances the joint structure's resistance to slippage and overall stability. The first protrusion C engages the first groove D, forming a lateral restraint that prevents relative slippage at the inclined joint. The convex-concave interlocking structure converts lateral shear forces into compressive stress between the protrusion and the groove, significantly enhancing the joint's resistance to lateral slippage. The lateral restraint effectively counteracts the torsional effect of the slope soil on the main frame 2, reducing the risk of structural deformation.

[0048] The interlocking bevels and the interlocking convex and concave surfaces create dual longitudinal and lateral constraints, making the anchor plate 21 and the main connecting plate 22 a coordinated force-bearing unit and enhancing the overall bearing capacity of the structure. The lateral restraint reduces fretting wear on the joint surface, delaying fatigue crack propagation and extending the service life of the structure. Furthermore, the first groove D and the first protrusion C provide a positioning function when mated, improving construction efficiency.

[0049] The roadbed slope protection structure also includes multiple groups of sub-skeletons 5, the lateral ends of the sub-skeletons 5 correspond to the left and right sides of two laterally adjacent anchor plates 21 except for the vertical ends; the anchor plates 21 also maintain the force applied to the sub-skeletons 5 spliced ​​with them directed towards the roadbed slope.

[0050] In this embodiment, a multi-dimensional, three-dimensional slope protection system is constructed through the transverse splicing of the sub-skeleton 5 and the anchor plate 21 and the pre-pressure transmission mechanism. The two ends of the transversely extending sub-skeleton 5 are spliced ​​with the left and right sides of the anchor plate 21 to form a transverse connection network. The main skeleton 2 and the sub-skeleton 5 form a grid support, which effectively disperses the lateral pressure of the slope soil and reduces local stress concentration. The introduction of the transverse sub-skeleton 5 significantly improves the anti-slip ability of the structure and adapts to the protection needs of slopes with larger slopes. The splicing of the sub-skeleton 5 and the anchor plate 21 forms a continuous covering layer, which enhances the anti-scouring ability of the slope surface. The multi-dimensional assembly structure limits the crack expansion path and delays the slope deterioration process.

[0051] The auxiliary frame 5 can be flexibly increased or decreased according to the size of the slope to meet the needs of projects of different scales.

[0052] Through the horizontal expansion of the 5 modules of the sub-skeleton, a three-dimensional upgrade of the slope protection structure is achieved. Its performance advantages such as anti-slip, anti-scouring, and local reinforcement significantly improve the structural stability under complex geological conditions.

[0053] The sub-skeleton 5 includes two transversely spliced ​​arc plates 51. The two ends of the two arc plates 51 are spliced ​​away from each other with the corresponding two transversely adjacent anchor plates 21. The pre-pressure of the anchor rod 1 is applied to the arc plate 51 through the anchor plate 21. The arc plate 51 converts the pressure into a radial constraint force on the slope soil, thereby realizing the coordinated force between the structure and the soil.

[0054] The arc-shaped structure is conducive to reducing stress. Through the curvature effect of the arc plate 51 module, the stress of the slope protection structure is optimized, thereby increasing the strength of the protection structure and significantly improving the structural stability under complex geological conditions.

[0055] One of the two adjacent arc-shaped plates 51 extends laterally to form a convex portion E, and the other is laterally concave to form a concave portion F. The convex portion E and the concave portion F coincide with each other, and when the convex portion E and the concave portion F coincide with each other, the freedom of relative displacement of the two arc-shaped plates 51 extending along the front-to-back direction is limited.

[0056] Among the adjacent curved plates 51, one extends a convex portion E laterally, and the other is concave into a concave portion F. The shapes of the two are complementary, which limits the sliding movement of the plane extending along the front-to-back direction of the curved plates 51, thereby ensuring the connection stability of the adjacent curved plates 51. At the same time, it can also effectively resist the problem of plane displacement of the curved plates 51 caused by deformation of the slope soil, thereby improving the protective effect of the protective structure.

[0057] Specifically, the concave portion F may be configured as a prism-shaped groove, and the convex portion F may be configured as a prism-shaped protrusion.

[0058] First plug blocks G extend from both ends of the bottom edging 3 and both ends of the sub-frame 5. A first slot H is provided on the side wall of the anchor plate 21 facing the roadbed slope. The first slot H is open on the side facing the roadbed slope, and the first plug block G can match the first slot H. A third inclined portion I and a fourth inclined portion J that can match each other are respectively formed on the first plug block G and the first slot H. The lower ends of the third inclined portion I and the fourth inclined portion J are inclined away from the roadbed slope.

[0059] In this embodiment, the first inserts G extending from both ends of the bottom trim 3 / sub-frame 5 are joined to the first slots H on the sidewalls of the anchor plate 21. The first slots H are open toward the roadbed slope, facilitating insertion of the first inserts G. The preload of the anchor rod 1 is transmitted to the first slots H via the anchor plate 21. The beveled mating structure converts the preload into a normal pressure between the first inserts G and the first slots H, enhancing pullout resistance. The beveled mating structure generates a normal force component under the preload, causing the first inserts G and the first slots H to self-lock, limiting relative slippage and improving connection stability.

[0060] Since the lower ends of the third inclined portion I and the fourth inclined portion J are inclined away from the roadbed slope, when the anchor plate 21 applies pressure to the bottom edging 3 and the sub-frame 5, the bottom edging 3 and the sub-frame 5 will slide downward and adaptively ensure the fit between the third inclined portion I and the fourth inclined portion J, while improving the stability of the vertical position of the bottom edging 3 and the sub-frame 5, avoiding their shaking, and thereby improving the stability of the protective structure.

[0061] Furthermore, the length of the first slot H is greater than the length of the first inserting block G, so that the first inserting block G can slide in the first slot H when the third inclined surface portion I and the fourth inclined surface portion J are pressed against each other.

[0062] The first slot block can slide and switch between an initial position and a stable position relative to the first slot H. In the initial position, the first plug block G is closer to the small end of the first slot H, and at the same time, the side wall of the first plug block G close to the roadbed slope protrudes from the anchor plate 21 toward the side wall of the roadbed slope; in the process of the first plug block G sliding from the initial position to the stable position, the third inclined portion I and the fourth inclined portion J are gradually pressed together until they slide to a balanced position, thereby ensuring the tightness of the connection between the first plug block G and the first slot H, thereby improving the stability and reliability of the roadbed slope protection structure.

[0063] Since the present invention adopts a modular splicing structure with inclined surfaces, when soil erosion occurs on the roadbed slope, the gap between the protective structure and the roadbed slope can be compensated by increasing the preload force of the anchor rod 1, thereby greatly improving the flexibility of the protective structure.

[0064] A fifth inclined portion K is formed on the left and right sides of the upper anchor plate 21, and a sixth inclined portion L is formed at both ends of the top edging 4. The fifth inclined portion K can match the sixth inclined portion L, and the side of the fifth inclined surface away from the roadbed slope extends toward the top edging 4 to which it is spliced. A second groove N and a second protrusion M that can match each other are formed on the fifth inclined portion K and the sixth inclined portion L, respectively, to limit the freedom of relative displacement of the top edging 4 and the anchor plate 21. The lower side walls of the corresponding top edging 4 and the upper anchor plate 21 are formed in an arc shape.

[0065] In this embodiment, the coordinated bevel structure of the fifth and sixth bevel portions K and L, combined with the mechanical locking between the second protrusions M and the second grooves N, achieves high-precision positioning, enhanced pullout and shear resistance, and anti-dislocation locking between the top trim 4 and the anchor plate 21, significantly improving the integrity, stability, and durability of the slope protection structure. The curved structure helps reduce stress, and the curvature effect of the curved plate 51 modules optimizes stress in the slope protection structure, thereby increasing its strength and significantly enhancing its stability under complex geological conditions.

[0066] The top edging 4, bottom edging 3 and auxiliary frame 5 are set to multiple sets of length models. Therefore, by prefabricating top edging 4, bottom edging 3 and auxiliary frame 5 of different lengths and combining them with main frames 2 of different splicing numbers, it is possible to adapt to the protection requirements of roadbed slopes within a certain size range, thereby greatly improving the flexibility of the protection structure.

[0067] The corresponding secondary frame 5 and main frame 2, the corresponding bottom edging 3, secondary frame 5 and main frame 2, and the corresponding top edging 4, secondary frame 5 and main frame 2 all form a planting area; the roadbed slope protection structure also includes frames 6 distributed in the planting area, and vegetation is planted in the frames 6.

[0068] In this embodiment, the roadbed slope protection structure achieves enhanced slope protection stability, soil and water conservation, and ecological landscaping through the coordinated design of the planting area and the vegetation of the frame 6, combined with the skeleton support system and ecological restoration function.

[0069] A frame 6, such as a concrete frame 6, is provided within the planting area. The frame 6 is filled with planting soil and planted with vegetation. The plant roots work together with the frame 6 to enhance slope stability. The vegetation reduces rainwater erosion, reduces soil erosion, promotes soil microbial activity, and improves soil structure.

[0070] The sub-frame 5 is combined with vegetation to form a landscape effect that integrates nature and humanity, and enhances the ecological value of the slope.

[0071] The top trim 4 and the main connecting plate 22 are both segmented structures that are slidably connected by the second plug block O and the second slot P. Through the sliding cooperation of the second plug block O and the second slot P, the top trim 4 can be extended and retracted in the left and right directions, and the main connecting plate 22 can be extended and retracted in the up and down directions. In this way, when the anchor plate 21 squeezes the top trim 4 and the main connecting plate 22, the two can adaptively adjust their own lengths. Moreover, due to the friction between the top trim 4, the main connecting plate 22 and the roadbed slope, there is also friction between the second plug block O and the second slot P, and the inclined surfaces will generate a component force pointing to the roadbed slope after being squeezed against each other. Therefore, the friction force can maintain the length of the two after adaptive adjustment. On the one hand, it can increase the allowable error value during the assembly process. On the other hand, it can provide a margin when the protective structure expands and contracts due to heat to avoid cracks in the protective structure.

[0072] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0073] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and 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 the present invention based on specific circumstances.

[0074] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0075] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0076] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A roadbed slope protection structure, characterized by: It comprises an anchor rod (1), a main frame (2), a bottom edging (3) and a top edging (4); The anchor rods (1) are anchored in the roadbed slope, the main skeleton (2) is provided as a plurality of groups extending vertically and distributed in parallel, the main skeleton (2) comprises an anchor plate (21) and a main connecting plate (22), the anchor plate (21) and the main connecting plate (22) are vertically staggered and spliced ​​in sequence, and both vertical ends of the main skeleton (2) are the anchor plates (21); The bottom trim (3) and the top trim (4) are both provided in plural numbers, and the lateral ends of the bottom trim (3) correspond to the left and right sides of the two lowermost anchoring plates (21) adjacent to each other in the lateral direction, and the lateral ends of the top trim (4) correspond to the left and right sides of the two uppermost anchoring plates (21) adjacent to each other in the lateral direction; The anchor plate (21) keeps applying a force directed toward the roadbed slope to the main connecting plate (22), the bottom trim (3) and the top trim (4) connected thereto.

2. The roadbed slope protection structure according to claim 1, characterized in that: In one group of the main skeletons (2), the opposite ends of the anchor plate (21) and the main connecting plate (22) are a first inclined portion (A) and a second inclined portion (B) that match each other, and the first inclined portion (A) corresponding to the anchor plate (21) extends away from one side of the roadbed slope toward the main connecting plate (22) to which it is spliced.

3. The roadbed slope protection structure according to claim 2, characterized in that: A first groove (D) and a first protrusion (C) are formed on the first inclined surface (A) and the second inclined surface (B), respectively; The first protrusion (C) and the first groove (D) can match each other when the first inclined portion (A) and the second inclined portion (B) match, so as to limit the freedom of relative lateral displacement of the first inclined portion (A) and the second inclined portion (B).

4. The roadbed slope protection structure according to any one of claims 1 to 3, characterized in that: It also includes multiple groups of sub-frames (5), wherein the transverse ends of the sub-frames (5) correspond to the left and right sides of two transversely adjacent anchoring plates (21) except the anchoring plates (21) at the vertical ends; The anchor plate (21) also keeps applying a force directed toward the roadbed slope to the secondary frame (5) spliced ​​therewith.

5. The roadbed slope protection structure according to claim 4, characterized in that: The sub-frames (5) each comprise two arc-shaped plates (51) that are spliced ​​in a transverse direction, and the two ends of the two arc-shaped plates (51) that are separated from each other are spliced ​​with two corresponding anchoring plates (21) that are adjacent in a transverse direction.

6. The roadbed slope protection structure according to claim 5, characterized in that: One of the two adjacent arc-shaped plates (51) extends laterally to form a convex portion (E), and the other is laterally concave to form a concave portion (F). The convex portion (E) and the concave portion (F) coincide with each other, and when the convex portion (E) and the concave portion (F) coincide with each other, the freedom of relative displacement of the two arc-shaped plates (51) along the plane extending in the front-back direction is limited.

7. The roadbed slope protection structure according to claim 6, characterized in that: First plug blocks (G) are extended from both ends of the bottom trim (3) and both ends of the auxiliary frame (5); a first slot (H) is provided on the side wall of the anchor plate (21) facing the roadbed slope; the first slot (H) is open on the side facing the roadbed slope; and the first plug block (G) can match the first slot (H); A third inclined portion (I) and a fourth inclined portion (J) that can fit together are formed on the first plug block (G) and the first slot (H), respectively. The lower ends of the third inclined portion (I) and the fourth inclined portion (J) are inclined in a direction away from the roadbed slope.

8. The roadbed slope protection structure according to claim 7, characterized in that: The left and right sides of the upper anchor plate (21) form a fifth inclined portion (K), and the two ends of the top trim (4) respectively form a sixth inclined portion (L), the fifth inclined portion (K) can match the sixth inclined portion (L), and the fifth inclined portion extends away from the side of the roadbed slope in the direction of the top trim (4) spliced ​​therewith; A second groove (N) and a second projection (M) that can fit together are formed on the fifth inclined surface (K) and the sixth inclined surface (L), respectively, to limit the freedom of relative displacement of the top trim (4) and the anchor plate (21).

9. The roadbed slope protection structure according to claim 8, characterized in that: The corresponding auxiliary frame (5) and the main frame (2), the corresponding bottom edging (3), the auxiliary frame (5) and the main frame (2), and the corresponding top edging (4), the auxiliary frame (5) and the main frame (2) all enclose a planting area; It also includes grids (6) distributed in the planting area, and vegetation is planted in the grids (6).

10. The roadbed slope protection structure according to claim 9, characterized in that: The top trim (4) and the main connecting plate (22) are both segmented structures that are slidably connected along corresponding length directions through a second plug-in block (O) and a second slot (P), so that the top trim (4) can be extended and retracted in the left-right direction and the main connecting plate (22) can be extended and retracted in the up-down direction.

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