Limestone soil pavement base reinforcing device

Through the combined design of the limiting frame and the embedded mechanism, a three-dimensional reinforcement network and multi-layer reinforcement of the lime-soil pavement base layer are realized, which solves the stability and crack resistance problems of traditional reinforcement devices under dynamic loads and improves the integrity and durability of the base layer.

CN224186568UActive Publication Date: 2026-05-01WUHAN GUANGYI ENG CONSULTING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN GUANGYI ENG CONSULTING
Filing Date
2025-05-15
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing lime-soil pavement base reinforcement devices are prone to drying shrinkage cracks, interlayer shear slip, and water damage under long-term dynamic loads. Furthermore, traditional processes cannot form a three-dimensional reinforcement network, resulting in insufficient interlayer shear strength, easy formation of weak interlayers at the interface, and large differences in density gradient after mechanical compaction, making it difficult to achieve rapid forming and self-suppressing cracks.

Method used

The design employs a limiting frame and an embedded mechanism. By combining the embedded and outer frames, seamless cement paving and multi-layer reinforcement are achieved. The embedded flow channels and cover plates are used for secondary reinforcement, forming a three-dimensional reinforced network that enhances the interlocking strength and compressive strength of the interface.

Benefits of technology

It improves the stability and compressive strength of lime-soil pavement base course, achieves rapid forming and self-suppressing crack effects, adapts to irregular cross-section construction, and enhances the integrity and durability of the base course.

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Abstract

The utility model provides a limestone soil pavement base course reinforcing device, which relates to the technical field of pavement base course reinforcing, and comprises a limiting frame, an embedded mechanism is arranged in the limiting frame, the embedded mechanism comprises an embedded frame, and a side edge cover plate is arranged on the embedded frame. According to the utility model, the outer surface of the inner embedded frame is nested in the outer embedded frame, so that cement in the outer embedded frame is pressed and compacted, seamless compaction can be carried out in the actual use process, and finally, a worker can carry out cement injection molding through the inner embedded runner in the inner embedded frame; in this way, cement can be laid in the embedded frame, the side edge cover plates, the embedded cover plates and the protective cover plates are used for conducting cover plate compaction on the embedded frame for secondary reinforcement, and after secondary reinforcement is completed, workers need to inject cement into the reinforcing square grooves for reinforcement, so that the stability of the embedded frame in the actual use process is improved to a certain extent.
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Description

A lime-soil road base reinforcement device Technical Field

[0001] This utility model relates to the field of road base reinforcement technology, and in particular to a lime-soil road base reinforcement device. Background Technology

[0002] Lime-soil pavement base courses, a common structural layer in highway engineering, are widely used in rural roads, low-grade highways, and temporary subgrade projects due to their good water stability, economy, and ease of construction. Current construction techniques mostly employ the traditional method of layered paving, mechanical compaction, and geogrid reinforcement, forming a slab structure through the ion exchange between lime and clay. With the increasing proportion of heavy traffic and the frequent occurrence of extreme weather events, traditional methods face prominent problems under long-term dynamic loads, such as the propagation of drying shrinkage cracks, interlayer shear slip, and exacerbated water damage. This is especially true in areas with frequent freeze-thaw cycles and transition sections of soft soil subgrades, requiring structural reinforcement design to improve the overall integrity of the base course. Modern road engineering demands that reinforcement devices possess rapid prototyping, interface bonding reinforcement, and crack self-inhibition functions, while also adapting to irregular cross-section construction and localized reinforcement needs, driving technological innovation from single-material modification to structure-material synergistic optimization.

[0003] Existing reinforcement devices and processes suffer from drawbacks. Traditional grid-lime-soil composite structures employ a planar laying method, where the interface interlocking effect is limited by two-dimensional mechanical transmission, failing to form a three-dimensional reinforcement network. This results in insufficient interlayer shear strength and easy crack propagation along the grid edges. A gradient difference exists between the surface density and internal consolidation after mechanical compaction. Conventional vibratory compaction devices struggle to achieve uniform reorganization of the three-phase lime-soil medium, leading to internal pore penetrations after moisture evaporation. Joint treatment in segmented construction relies on manual filling, and the lack of a directional pressure transmission structure easily creates weak interlayers between old and new surfaces, inducing structural spalling under vehicle impact loads. Existing reinforcement templates often employ fixed cavity structures, unable to dynamically adjust grouting pressure and channel distribution according to changes in base layer thickness, resulting in material segregation at the edges. Therefore, we propose a lime-soil pavement base layer reinforcement device. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a lime-soil road base reinforcement device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lime-soil pavement base reinforcement device, comprising: a limiting frame, wherein an embedded mechanism is provided in the limiting frame, the embedded mechanism includes an embedded frame, a side cover plate is provided on the embedded frame, an embedded cover plate is provided on the embedded frame on one side of the side cover plate, a protective cover plate is provided on the embedded cover plate, a reinforcement square groove is provided on the embedded frame, and an embedded flow channel is provided on the embedded frame.

[0006] In a preferred embodiment, the outer surface of the inner frame is provided with an outer sleeve mechanism, the outer sleeve mechanism including an outer frame, the outer frame having a flow channel slot, and one end of the flow channel slot being provided with a reinforcing slot box.

[0007] In a preferred embodiment, a side flow channel is provided at the end of the flow channel hole away from the reinforcement tank, a square storage tank is provided on one side of the reinforcement tank, and a square flow channel is provided at one end of the square storage tank.

[0008] In a preferred embodiment, the outer surface of the flow channel hole is excavated and nested in the outer frame, the outer surface of the reinforcing groove box is nested and installed at one end of the flow channel hole in the outer frame, and the side flow channel flows along the outer edge of the outer frame.

[0009] In a preferred embodiment, the outer surface of the square storage tank is nested within one side of the reinforced tank box, and the outer surface of the square flow channel is nested within one end of the square storage tank in the outer frame.

[0010] In a preferred embodiment, the outer surface of the side cover is nested on the inner frame, the outer surface of the inner cover is nested on the inner frame at one end of the side cover, and the bottom of the protective cover is fitted onto the inner cover.

[0011] In a preferred embodiment, the outer surface of the reinforced square groove is nested within the embedded frame, the outer surface of the embedded flow channel is excavated and recessed within the outer flow channel of the embedded frame, and the inner surface of the limiting frame is nested and welded to the outer surface of the embedded frame.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This invention involves nesting the outer surface of the inner frame within the outer frame, thereby flattening and compacting the cement within the outer frame. This allows for seamless compaction during actual use. Finally, workers can inject cement through the embedded channels in the inner frame, allowing the cement to be laid on the inner frame. The side cover plates, inner cover plates, and protective cover plates then compact the inner frame for secondary reinforcement. After completion, workers need to inject cement into the reinforcement groove for further reinforcement, thus improving its stability during actual use. Attached Figure Description

[0014] Figure 1 is a structural schematic diagram of a lime-soil road base reinforcement device provided by this utility model.

[0015] Figure 2 is an exploded view of the structure of a lime-soil road base reinforcement device provided by this utility model.

[0016] Figure 3 is a schematic diagram of the embedded mechanism structure of a lime-soil road base reinforcement device provided by this utility model.

[0017] Figure 4 is a schematic diagram of the outer casing mechanism of a lime-soil road base reinforcement device provided by this utility model.

[0018] Legend:

[0019] 1. Limiting frame;

[0020] 2. Embedded mechanism; 21. Embedded frame; 22. Side cover plate; 23. Embedded cover plate; 24. Protective cover plate; 25. Reinforced square channel; 26. Embedded flow channel;

[0021] 3. Outer casing mechanism; 31. Embedded frame; 32. Flow channel slot; 33. Reinforced slot box; 34. Side flow channel; 35. Square storage slot; 36. Square flow channel. Detailed Implementation

[0022] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0023] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0024] Example 1

[0025] As shown in Figures 1-4, this utility model provides a technical solution: a lime-soil pavement base reinforcement device, comprising: a limiting frame 1, an embedded mechanism 2 provided in the limiting frame 1, the embedded mechanism 2 including an embedded frame 21, a side cover plate 22 provided on the embedded frame 21, an embedded cover plate 23 provided on one side of the embedded frame 21, a protective cover plate 24 provided on the embedded cover plate 23, a reinforcement square groove 25 provided on the embedded frame 21, and an embedded flow channel 26 provided on the embedded frame 21;

[0026] The outer surface of the inner frame 21 is provided with an outer sleeve mechanism 3. The outer sleeve mechanism 3 includes an outer frame 31, and the outer frame 31 is provided with a flow channel slot 32. One end of the flow channel slot 32 is provided with a reinforcing slot box 33.

[0027] A side flow channel 34 is provided at the end of the flow channel hole 32 away from the reinforced tank 33, a square storage tank 35 is provided on one side of the reinforced tank 33, and a square flow channel 36 is provided at one end of the square storage tank 35.

[0028] The outer surface of the flow channel slot 32 is embedded in the outer frame 31, and the outer surface of the reinforcing slot box 33 is embedded in one end of the flow channel slot 32 in the outer frame 31. The side flow channel 34 flows along the outer edge of the outer frame 31.

[0029] The outer surface of the square storage tank 35 is nested and recessed into one side of the reinforced tank box 33, and the outer surface of the square flow channel 36 is nested and recessed into one end of the square storage tank 35 in the outer frame 31.

[0030] The outer surface of the side cover 22 is nested on the inner frame 21, and the outer surface of the inner cover 23 is nested on the inner frame 21 at one end of the side cover 22. The bottom of the protective cover 24 is fitted onto the inner cover 23.

[0031] The outer surface of the reinforced square groove 25 is nested and recessed in the embedded frame 21, the outer surface of the embedded flow channel 26 is excavated and recessed in the outer flow channel of the embedded frame 21, and the inner surface of the limiting frame 1 is nested and welded to the outer surface of the embedded frame 21.

[0032] In this embodiment, when using this reinforcement device to reinforce a lime-soil road, the worker can first lay the outer ring of cement and excavate a channel. Then, the outer frame 31 in the outer casing 3 is recessed into the outer ring of cement. The worker can then introduce cement into the outer frame 31, allowing the cement to flow through the side channel 34 into the channel hole 32, the reinforcement tank 33, the square storage tank 35, and the square channel 36, respectively. This ensures that the outer frame 31 is filled with cement channels. After the cement laying is completed, the worker can then insert the inner frame 31 into the channel. The outer surface of the frame 21 is nested in the outer frame 31, thereby flattening and compacting the cement in the outer frame 31. This allows for seamless compaction during actual use. Finally, workers can inject cement into the inner channel 26 of the inner frame 21, allowing the cement to be laid on the inner frame 21 and the side cover plate 22, inner cover plate 23, and protective cover plate 24 to compact the inner frame 21 for secondary reinforcement. After completion, workers need to inject cement into the reinforcement square groove 25 for final reinforcement.

[0033] Working principle:

[0034] As shown in Figures 1-4, when installing and reinforcing lime-soil roads, workers can use this reinforcement device to implement an efficient and robust construction process. First, a ring of cement needs to be laid in advance on the construction section, and flow channels need to be excavated at corresponding locations for the embedding of subsequent structures and the flow of cement. Next, the outer casing mechanism 3 of the reinforcement device is arranged, that is, its outer frame 31 is securely installed in the pre-set outer ring cement area in an indented manner.

[0035] After the installation of the outer frame 31 is completed, workers can begin to pour cement into the frame. At this time, the cement will flow sequentially into various functional areas within the structure through multiple pre-designed side channels 34 on the side of the outer frame 31, including channel slots 32, reinforcement boxes 33, square storage tanks 35, and square channels 36. Through this distributed channel structure design, the cement can evenly fill the entire outer frame 31 system, laying a solid foundation for subsequent road reinforcement work.

[0036] After the cement was poured and initially shaped, the workers continued to accurately nest the inner frame 21 into the outer frame 31. Since the outer frame 31 was already filled with cement, the pressing process of the inner frame 21 could further compact the cement, thereby achieving a seamless laying of the entire structure on the surface, enhancing the integrated effect and stability of the ground.

[0037] Subsequently, workers can use the embedded flow channels 26 within the embedded frame 21 to perform a second cement injection. This step not only achieves complete filling of the embedded frame 21 but also allows it to be pressurized and secured by multiple components within the structure, including side cover plates 22, embedded cover plates 23, and protective cover plates 24. These cover plate structures serve a dual purpose of compaction and sealing, giving the reinforced structure good compressive strength and durability, thereby improving its performance under complex geological conditions.

[0038] After all the structural elements are installed, workers must perform the final cement injection molding operation within the reinforced square trench 25. This step provides the last layer of stable support for the entire reinforcement system, using a closed-loop injection process to integrate all parts of the structure and achieve a comprehensive reinforcement effect.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0040] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lime-soil pavement base reinforcement device, characterized in that, include: A limiting frame (1) is provided with an embedded mechanism (2). The embedded mechanism (2) includes an embedded frame (21). A side cover plate (22) is provided on the embedded frame (21). An embedded cover plate (23) is provided on the embedded frame (21) on one side of the side cover plate (22). A protective cover plate (24) is provided on the embedded cover plate (23). A reinforcing square groove (25) is provided on the embedded frame (21). An embedded flow channel (26) is provided on the embedded frame (21). The outer surface of the reinforcing square groove (25) is nested and recessed in the embedded frame (21). The outer surface of the embedded flow channel (26) is excavated and recessed in the outer flow channel of the embedded frame (21).

2. The lime-soil pavement base reinforcement device according to claim 1, characterized in that: The outer surface of the inner frame (21) is provided with an outer sleeve mechanism (3), the outer sleeve mechanism (3) includes an outer frame (31), the outer frame (31) is provided with a flow channel slot (32), and one end of the flow channel slot (32) is provided with a reinforcing slot box (33).

3. The lime-soil pavement base reinforcement device according to claim 2, characterized in that: The flow channel hole (32) is provided with a side flow channel (34) at the end away from the reinforcement tank (33), and a square storage tank (35) is provided on one side of the reinforcement tank (33), and a square flow channel (36) is provided at one end of the square storage tank (35).

4. The lime-soil pavement base reinforcement device according to claim 3, characterized in that: The outer surface of the flow channel hole (32) is embedded in the outer frame (31), and the outer surface of the reinforcing slot box (33) is embedded in one end of the flow channel hole (32) in the outer frame (31). The side flow channel (34) flows along the outer edge of the outer frame (31).

5. The lime-soil pavement base reinforcement device according to claim 4, characterized in that: The outer surface of the square storage tank (35) is nested and recessed into one side of the reinforced tank box (33), and the outer surface of the square flow channel (36) is nested and recessed into one end of the square storage tank (35) in the outer frame (31).

6. The lime-soil pavement base reinforcement device according to claim 1, characterized in that: The outer surface of the side cover plate (22) is nested on the inner frame (21), and the outer surface of the inner cover plate (23) is nested on the inner frame (21) at one end of the side cover plate (22). The bottom of the protective cover plate (24) is fitted and placed on the inner cover plate (23).

7. The lime-soil pavement base reinforcement device according to claim 1, characterized in that: The inner surface of the limiting frame (1) is nested and welded to the outer surface of the embedded frame (21).