Mountainous highway subgrade reinforcing device
By constructing a mesh support framework of transverse reinforcements and connecting rods in the roadbed of mountain highways, combined with a protective plate structure and a metal mesh drainage system, the problems of roadbed slippage and drainage were solved, thereby improving the stability of the roadbed and construction efficiency.
Patent Information
- Application Number
- CN202522047900.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-24
AI Technical Summary
In mountainous areas, the roadbed of highways is prone to slippage, settlement or collapse at high embankment and semi-fill/semi-cut sections due to complex geological conditions and vehicle loads. Existing anchor bolts or anti-slide piles lack integrity and effective drainage capacity.
A spatial mesh support framework is constructed by using transverse reinforcements and connecting rods to penetrate deep into the roadbed. Combined with the guardrail structure and metal mesh, it forms an efficient drainage system. Anchor rods and crossbars are cast as a whole, and the foundations for guardrail posts are pre-embedded to improve the overall integrity and drainage capacity.
It effectively resists lateral displacement and uneven settlement of the roadbed, improves construction efficiency, ensures roadbed stability, reduces fill material loss and water accumulation, and shortens the construction period.
Smart Images

Figure CN224678466U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a roadbed reinforcement device for mountainous expressways. Background Technology
[0002] When constructing highways in mountainous areas, complex conditions such as high embankment roadbeds and semi-fill / semi-cut roadbeds are often encountered. These road sections have an excavated mountain slope on one side and an embankment roadbed on the other. Due to complex geological conditions, the slope may be unstable, and the embankment roadbed is prone to slippage, settlement, or even collapse under its own weight and vehicle loads, especially in areas with soft soil or abundant rainfall.
[0003] In existing technologies, roadbed reinforcement commonly employs techniques such as anchored retaining walls, anti-slide piles, or reinforced soil. However, these traditional methods have several shortcomings:
[0004] 1. Poor overall integrity: Traditional anchor bolts or anti-slide piles often work independently, lack effective lateral connections, and are difficult to form an overall force-bearing system, thus having limited ability to resist the overall lateral slippage of the roadbed.
[0005] 2. Conflict between drainage and protection: Drainage facilities are required to prevent water accumulation inside the roadbed. However, traditional solid protective panels or concrete retaining walls are often ineffective in drainage design, easily becoming clogged, or causing roadbed material to be lost due to excessively large drainage holes, thus affecting the stability of the roadbed.
[0006] Based on the above problems, we designed a roadbed reinforcement device for mountain highways with higher overall integrity and better drainage capacity. Utility Model Content
[0007] The technical problem to be solved by this utility model is to provide a roadbed reinforcement device for mountain highways with higher integrity and better drainage capacity.
[0008] To solve the above problems, the present invention adopts the following technical solution:
[0009] A roadbed reinforcement device for mountain highways, comprising,
[0010] The system includes multiple transverse reinforcement members, which are horizontally embedded within the roadbed. One end of each reinforcement member is inserted into the mountainside, while the other end extends beyond the roadbed.
[0011] A connecting rod, wherein the connecting rod is connected between two adjacent transverse reinforcing members, and multiple connecting rods are provided between two adjacent transverse reinforcing members;
[0012] A protective plate structure is installed between adjacent transverse reinforcement members.
[0013] Preferably, the transverse reinforcement includes an anchor rod, a crossbar, a support plate, and a limiting seat. The anchor rod is cast into the mountainside, one end of the crossbar is cast into the anchor rod, and the other end cantilevered to the outside of the roadbed. The support plate is a single elongated plate, the plate body of which is stamped to form multiple continuous and upwardly arched arc-shaped support parts. The arc-shaped support parts are fixed to the bottom of the crossbar, and the arc-shaped support parts convex upwards and support the bottom of the crossbar. The limiting seat is installed on the crossbar, the connecting rod is fixed to the arc-shaped support parts, and the guard plate structure is installed through the crossbar and limited by the limiting seat.
[0014] Preferably, the crossbar is a hollow galvanized square bar, and a horizontally penetrating pouring hole is provided at the position where the crossbar is cast inside the anchor rod, through which the concrete slurry for casting the anchor rod enters the interior of the crossbar.
[0015] Preferably, the connecting rod is positioned between two adjacent support portions.
[0016] Preferably, the limiting seat is fixed to the crossbar with screws, and a mounting seat for installing the guardrail post is provided on the top of the limiting seat, the mounting seat limiting the guardrail structure.
[0017] Preferably, the guard plate structure includes a guard plate body and a metal mesh. The guard plate body is bent to form a vertical plate portion and an inclined plate portion. The vertical plate portion forms a barrier against the roadbed, and the inclined plate portion is pressed against the slope surface outside the roadbed. A first through groove is provided in the vertical plate portion, and the metal mesh is fixed in the first through groove. Assembly grooves are provided on both sides of the vertical plate portion, and the crossbar passes through the assembly groove. The limiting seat limits the outward movement of the vertical plate portion, and the mounting seat acts on the vertical plate portion.
[0018] Preferably, a plurality of second through slots are provided in the inclined plate portion.
[0019] Preferably, a plurality of ribs are provided between the vertical plate portion and the inclined plate portion.
[0020] Preferably, a plurality of drainage grooves are provided at the bottom of the vertical plate portion.
[0021] The beneficial effects of this utility model are:
[0022] One advantage is that by anchoring one end of multiple lateral reinforcement members to the mountain and connecting the parts located in the foundation pit with connecting rods, a spatial mesh support framework that extends deep into the roadbed is formed. This support framework connects the scattered anchor points into a whole, allowing them to share the load and effectively resist lateral displacement and uneven settlement of the roadbed, making it particularly suitable for road sections with poor geological conditions.
[0023] Secondly, this invention innovatively integrates the mounting base for the guardrail post with the limiting seat for the limiting guardrail structure into one unit. The guardrail post foundation is pre-set during the installation of the reinforcement device. Subsequently, the guardrail post can be directly fixed to the mounting base, eliminating the complex process of separately casting concrete post foundations in traditional methods, significantly shortening the construction period and improving construction efficiency.
[0024] Thirdly, the through channels, secondary through channels, and bottom drainage channels on the protective plate structure, working in conjunction with the laid geotextile, form a highly efficient and clog-resistant drainage system. This system can promptly remove accumulated water from the roadbed and reduce water pressure. Simultaneously, the metal mesh effectively prevents the loss of permeable materials (such as gravel) within the roadbed, avoiding voids and settlement caused by filler loss and resolving the conflict between drainage and protection.
[0025] Fourthly, the crossbar adopts a hollow design and is equipped with a pouring hole, allowing concrete slurry to flow into its interior and be cast into a solid whole with the anchor rod, which greatly improves the anchoring strength and pull-out resistance. Attached Figure Description
[0026] 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.
[0027] Figure 1 This is a structural diagram of the device;
[0028] Figure 2 This is a schematic diagram showing the fit between the lateral stiffener and the connecting rod;
[0029] Figure 3 This is a three-dimensional view of the transverse reinforcement.
[0030] Figure 4 This is a schematic diagram of the installation of this device;
[0031] Figure 5 This is a three-dimensional view of the protective panel structure.
[0032] The attached figures are labeled as follows: 1. Horizontal reinforcement; 2. Connecting rod; 3. Guard plate structure; 11. Anchor rod; 12. Horizontal bar; 13. Support plate; 14. Limiting seat; 130. Arc-shaped support; 141. Mounting seat; 121. Pouring hole; 31. Guard plate body; 32. Metal mesh; 311. Vertical plate part; 312. Inclined plate part; 313. Through groove; 314. Assembly groove; 331. Through groove; 332. Rib plate; 333. Drainage groove. Detailed Implementation
[0033] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0034] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0035] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0036] Furthermore, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] See Figure 1 The illustrated roadbed reinforcement device for mountain highways includes,
[0039] A plurality of transverse reinforcing members 1 are provided, which are laterally embedded in the roadbed, with one end of each reinforcing member 1 inserted into the mountainside and the other end extending to the outside of the roadbed.
[0040] Link 2, the link 2 is connected between two adjacent transverse reinforcing members 1, and multiple link 2 are arranged between two adjacent transverse reinforcing members 1;
[0041] The protective plate structure 3 is installed between adjacent transverse reinforcing members 1.
[0042] The above technical solutions are mainly for locations with soft soil and strong load-bearing requirements, rather than for laying the entire section.
[0043] During construction, the ground is first initially hardened, then the crossbar reinforcement 1 is installed, then the connecting rod 2 is installed, and finally the guard plate structure 3 is installed. Then the roadbed material is laid on the inner side of the guard plate structure 3 until the final asphalt pavement is laid.
[0044] See Figure 2 and Figure 3 As shown, the transverse reinforcement 1 includes an anchor rod 11, a crossbar 12, a support plate 13, and a limiting seat 14. The anchor rod 11 is cast into the mountain body. One end of the crossbar 12 is cast into the anchor rod 11, and the other end cantilevered to the outside of the roadbed. The support plate 13 is a single long strip plate, and its plate body is stamped to form multiple continuous and upwardly arched arc-shaped support parts 130. The arc-shaped support parts 130 are fixed to the bottom of the crossbar 12. The arc-shaped support parts 130 convex upwards and support the bottom of the crossbar 12. The limiting seat 14 is installed on the crossbar 12. The connecting rod 2 is fixed to the arc-shaped support parts 130. The guard plate structure 3 is installed through the crossbar 12 and limited by the limiting seat 14.
[0045] When implementing the above technical solution, it is necessary to first open pile holes on the side of the mountain, then insert steel cages and crossbars 12, then pour in the concrete to form piles, and finally complete the curing.
[0046] In the above technical solution, the anchor rod 11 is fixed to the mountain by pouring concrete, which limits one end of the crossbar 12.
[0047] The protective plate structure 3 is installed via the crossbar 12. The protective plate structure 3 limits the roadbed material and prevents the roadbed material from collapsing down the hillside.
[0048] Link 2 is used to fix two adjacent support plates 13 together.
[0049] Link 2 is made of galvanized steel.
[0050] In the above technical solution, the support plate 13 is made of spring steel plate with a thickness of 8mm~12mm.
[0051] See Figure 4 As shown, the crossbar 12 is a hollow galvanized square bar. A horizontally penetrating pouring hole 121 is provided at the position where the crossbar 12 is poured inside the anchor rod 11. The concrete slurry for pouring the anchor rod enters the interior of the crossbar through the pouring hole.
[0052] The design of the casting hole 121 and the hollow galvanized square rod allows concrete slurry to be poured into the crossbar 12 when the anchor rod 11 is cast, so that the crossbar 12 and the anchor rod 11 are cast into a whole.
[0053] The connecting rod 2 is positioned between two adjacent support portions 130.
[0054] The support part 130 is an arc-shaped upward protrusion, which can position the connecting rod 2. After positioning, the connecting rod 2 and the support part 130 are fixed by welding.
[0055] See Figure 3 As shown, the limiting seat 14 is fixed to the crossbar 12 with screws, and a mounting seat 141 for installing the guardrail post is provided on the top of the limiting seat 14. The mounting seat 141 limits the guardrail structure 3.
[0056] In the above technical solution, the guardrail posts can be directly installed through the mounting base 141. Therefore, after the device is pre-embedded inside the foundation pit, there is no need to specially cast up the posts for installation.
[0057] See Figure 2 , Figure 3 and Figure 5 As shown, the guard plate structure 3 includes a guard plate body 31 and a metal mesh 32. The guard plate body 31 is bent to form a vertical plate portion 311 and an inclined plate portion 312. The vertical plate portion 311 forms a barrier against the roadbed, and the inclined plate portion 312 is pressed against the slope surface outside the roadbed. A first through groove 313 is provided at the vertical plate portion 311, and the metal mesh 32 is fixed in the first through groove 313. Assembly grooves 314 are provided on both sides of the vertical plate portion 311, and the crossbar 12 passes through the assembly groove 314. The limiting seat 14 limits the outward movement of the vertical plate portion 311, and the mounting seat 141 acts on the vertical plate portion 311.
[0058] In the above technical solution, the metal mesh 32 is a steel wire mesh that has been treated with anti-rust. The metal mesh 32 is mainly used to block the permeable material (stone layer) in the roadbed material to avoid the collapse and loss of the permeable material, and to not affect the drainage of the permeable material.
[0059] See Figure 5 As shown, a plurality of second through slots 331 are provided at the inclined plate portion 312.
[0060] During construction, geotextile is laid on the slope in advance, and the inclined plate 312 is pressed on the geotextile. The design of the second channel 331 can reduce the material used for the inclined plate 312, and in conjunction with the geotextile, it can drain water and prevent the mountain material from being washed away.
[0061] See Figure 5 As shown, multiple ribs 332 are provided between the vertical plate portion 311 and the inclined plate portion 312.
[0062] Rib 332 can increase the structural strength between the vertical plate portion 311 and the inclined plate portion 312.
[0063] See Figure 5 As shown, a plurality of drainage grooves 333 are provided at the bottom of the vertical plate portion 311.
[0064] The drainage channel 333 can further increase the drainage at the position of the vertical plate 311. Correspondingly, geotextile also needs to be laid on the inner side of the vertical plate 311 to prevent the subgrade material from being washed away from the drainage channel 333.
[0065] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0066] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0067] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0068] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0069] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0070] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any 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 roadbed reinforcement device for mountainous expressways, characterized in that: include, The system includes multiple transverse reinforcement members, which are horizontally embedded within the roadbed. One end of each reinforcement member is inserted into the mountainside, while the other end extends beyond the roadbed. A connecting rod, wherein the connecting rod is connected between two adjacent transverse reinforcing members, and multiple connecting rods are provided between two adjacent transverse reinforcing members; A protective plate structure is installed between adjacent transverse reinforcement members.
2. The roadbed reinforcement device for mountain expressways according to claim 1, characterized in that: The transverse reinforcement includes an anchor bolt, a crossbar, a support plate, and a limiting seat. The anchor bolt is cast into the mountainside. One end of the crossbar is cast into the anchor bolt, and the other end cantilevered to the outside of the roadbed. The support plate is a single elongated plate, and its body is stamped to form multiple continuous and upwardly arched arc-shaped support parts. The arc-shaped support parts are fixed to the bottom of the crossbar, and the arc-shaped support parts convex upwards and support the bottom of the crossbar. The limiting seat is installed on the crossbar, and the connecting rod is fixed to the arc-shaped support parts. The guard plate structure is installed through the crossbar and limited by the limiting seat.
3. The roadbed reinforcement device for mountain expressways according to claim 2, characterized in that: The crossbar is a hollow galvanized square bar. A horizontally penetrating pouring hole is provided at the position where the crossbar is cast inside the anchor rod. The concrete slurry for casting the anchor rod enters the interior of the crossbar through the pouring hole.
4. The roadbed reinforcement device for mountain expressways according to claim 2, characterized in that: The connecting rod is positioned between two adjacent support portions.
5. The roadbed reinforcement device for mountain expressways according to claim 2, characterized in that: The limiting seat is fixed to the crossbar with screws, and a mounting seat for installing the guardrail post is provided on the top of the limiting seat. The mounting seat limits the guardrail structure.
6. The roadbed reinforcement device for mountain expressways according to claim 5, characterized in that: The guard plate structure includes a guard plate body and a metal mesh. The guard plate body is bent to form a vertical plate part and an inclined plate part. The vertical plate part forms a barrier against the roadbed, and the inclined plate part is pressed against the slope surface outside the roadbed. A first through groove is provided in the vertical plate part, and the metal mesh is fixed in the first through groove. Assembly grooves are provided on both sides of the vertical plate part, and the crossbar passes through the assembly groove. The limiting seat limits the outward movement of the vertical plate part, and the mounting seat acts on the vertical plate part.
7. The roadbed reinforcement device for mountain expressways according to claim 6, characterized in that: Multiple second through slots are provided in the inclined plate section.
8. The roadbed reinforcement device for mountain expressways according to claim 7, characterized in that: Multiple ribs are provided between the vertical plate portion and the inclined plate portion.
9. The roadbed reinforcement device for mountain expressways according to claim 8, characterized in that: Multiple drainage grooves are provided at the bottom of the vertical plate section.