A highway subgrade assembled stone cage protection slope
By using detachable locking components and reinforcing connectors in prefabricated gabion slope protection, the structural instability caused by steel frame displacement is solved, achieving a higher overall protection effect and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGNAN HIGHWAY DEV CENT OF GANSU PROVINCE
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-24
AI Technical Summary
The overall effect of existing prefabricated gabion slope protection is easily affected by the displacement of a single steel frame, resulting in overall structural instability.
The locking assembly, which is detachably connected, includes locking components and guide components. It achieves a stable connection between adjacent steel frames through locking bolts and connecting plates, and improves the overall rigidity by strengthening the connecting parts.
It improves the overall protection effect of gabion slope protection, avoids steel frame displacement, enhances the stability and convenience of the structure, and facilitates maintenance and replacement.
Smart Images

Figure CN224549160U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slope protection technology in civil engineering, specifically a prefabricated gabion slope protection system for highway subgrade. Background Technology
[0002] Gabions are a type of ecological grid structure, referring to cages filled with stones that are set up to prevent riverbanks or structures from being eroded by water flow. Generally, the stones are piled up and then metal mesh is laid to fix the stones in place.
[0003] Chinese utility model patent CN217710773U discloses a vibrating screening device for asphalt concrete production and a prefabricated gabion slope protection device, including a platform, a slope, permeable geotextile, and a layer of crushed stone filling. The slope is located on top of the platform, and the steel frame is located inside the crushed stone filling layer. All six sides of the steel frame are bound with steel mesh, and vertical plates are fixed to the inner side of the steel frame. This utility model relates to the field of slope protection technology in civil engineering. Through the coordination of reinforcing bars, sliders, and the steel frame, the gabion can be factory-produced, greatly improving production efficiency. The construction process is simple, requiring only hoisting. Secondly, it has good permeability, preventing seepage and water accumulation, and avoiding a reduction in slope strength. Thirdly, it can increase the natural elements of the slope, allowing it to better integrate into the surrounding environment. Finally, the slope protection device is quick to maintain and economical.
[0004] However, the above-mentioned patent still has the following shortcomings in actual use: the patent assembles the main support of the gabion slope protection by stacking steel frames. Each steel frame supports the area it bears through its own supporting force, and each steel frame is stacked in a staggered manner. Once a steel frame is accidentally displaced, it will affect the overall effect of the slope protection. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a prefabricated gabion slope protection system for highway subgrade, in order to solve the problem of how to improve the overall effect of prefabricated gabion slope protection as mentioned in the background art.
[0006] The technical solution of this utility model is:
[0007] A prefabricated gabion slope protection system for highway subgrade includes a platform, a slope body on the top of the platform, a permeable geotextile on one side of the slope body, a layer of crushed stone on one side of the permeable geotextile, a metal mesh on the outer side of the slope body, and multiple reinforcement mechanisms on the inner side of the metal mesh. Each reinforcement mechanism includes multiple steel frames and multiple locking components. Reinforcing connectors are provided at the four corners of the inner side of each steel frame. Adjacent steel frames are detachably connected via locking components. Each locking component includes multiple locking parts and multiple guiding parts. The locking parts are equidistantly arranged at the front bottom of the steel frames along the length of the steel frames, and the guiding parts are equidistantly arranged on two adjacent steel frames along the length of the steel frames.
[0008] Preferably, the locking component includes a locking bolt and a connecting plate. The connecting plate has a through hole for the locking bolt to pass through. The top of the steel frame has multiple locking screw holes that cooperate with the locking bolt. The connecting plate is horizontally arranged at the bottom front side of the steel frame.
[0009] Preferably, the connecting plate has a first rotating shaft on both sides of its tail end, and the front bottom end of the steel frame has a plurality of first built-in grooves for accommodating the connecting plate, and the first built-in grooves have first rotating grooves that cooperate with the first rotating shafts.
[0010] Preferably, the back of the connecting plate is provided with a magnetic layer, and the wall of the first built-in groove is provided with an adsorption layer that cooperates with the magnetic layer.
[0011] Preferably, the guiding component includes a lower suspension plate and a guide rod. One end of the guide rod is provided with a limiting block. The upper rear side of the steel frame is provided with a plurality of second internal grooves for accommodating the lower suspension plate. The groove wall of the second internal groove is provided with a guide groove that cooperates with the guide rod. The lower suspension plate is vertically arranged on the rear end of the bottom of the steel frame. The other end of the guide rod is fixedly connected to the lower suspension plate.
[0012] Preferably, the reinforcing connector includes a first locking rod and a second locking rod. Both the first and second locking rods have rotating blocks at their tail ends. Each rotating block has a second rotating shaft on both sides. Both the first and second locking rods have external threads. A connecting threaded sleeve is screwed onto the first locking rod. The inner top and bottom walls of the steel frame each have multiple third internal grooves for accommodating the first locking rod. The inner walls of the left and right sides of the steel frame each have multiple fourth internal grooves for accommodating the second locking rod. Both the third and fourth internal grooves have second rotating grooves that mate with the second rotating shaft.
[0013] Preferably, the third built-in groove is provided with a first elastic clamp for securing the connecting screw sleeve, and the fourth built-in groove is provided with a second elastic clamp for securing the second locking rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] Firstly, this utility model improves the reinforcement mechanism, allowing two adjacent steel frames to be detachably connected via locking components, so that all steel frames can be easily connected together, making all steel frames a whole reinforced structure. Individual steel frames will not shift, thus improving the protective effect of gabion slope protection.
[0016] Secondly, this utility model uses a first locking rod, a second locking rod, and a connecting screw sleeve to form a new reinforcing steel bar, which makes the replacement and maintenance of the new reinforcing steel bar more convenient. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the prefabricated gabion slope protection system for highway subgrade according to this utility model. Figure 1 ;
[0018] Figure 2 This is a schematic diagram of the prefabricated gabion slope protection system for highway subgrade according to this utility model. Figure 2 ;
[0019] Figure 3 This is a partial cross-sectional view of the prefabricated gabion slope protection for highway subgrade according to the present invention. Figure 1 ;
[0020] Figure 4 This is a partial cross-sectional view of the prefabricated gabion slope protection for highway subgrade according to the present invention. Figure 2 .
[0021] In the picture:
[0022] 1. Permeable geotextile; 2. Steel frame; 21. First built-in groove; 22. Second built-in groove; 23. Guide groove; 24. Third built-in groove; 241. First elastic clamp; 25. Fourth built-in groove; 251. Second elastic clamp; 3. Locking assembly; 31. Locking component; 311. Locking bolt; 312. Connecting plate; 313. Locking screw hole; 314. First rotating shaft; 32. Guide component; 321. Lower suspension plate; 322. Guide rod; 323. Limiting block; 4. Reinforcing connector; 41. First locking rod; 42. Second locking rod; 43. Rotating block; 431. Second rotating shaft; 44. Connecting screw sleeve. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-4 The present invention will describe the above technical solution in detail through the following embodiments:
[0025] A prefabricated gabion slope protection system for highway subgrade includes a platform, a slope body on the top of the platform, a permeable geotextile 1 on one side of the slope body, a layer of crushed stone filling on one side of the permeable geotextile 1, a metal mesh on the outside of the slope body, and multiple reinforcement mechanisms on the inside of the metal mesh. The reinforcement mechanism includes multiple steel frames 2 and multiple locking components 3. Reinforcing connectors 4 are provided at the four corners of the inside of the steel frames 2. Adjacent steel frames 2 are detachably connected by locking components 3. The locking components 3 include multiple locking parts 31 and multiple guiding parts 32. The multiple locking parts 31 are equidistantly arranged at the front bottom of the steel frames 2 along the length direction of the steel frames 2, and the multiple guiding parts 32 are equidistantly arranged on two adjacent steel frames 2 along the length direction of the steel frames 2.
[0026] The platform, slope, permeable geotextile 1, crushed stone filling layer, and metal mesh of this utility model are all existing technologies. The platform, slope, crushed stone filling layer, and metal mesh are not shown in the figure. This utility model improves the reinforcement mechanism. Two adjacent steel frames 2 can be detachably connected by locking components 3, so that all steel frames 2 can be easily connected together, making all steel frames 2 into a whole reinforcement. Individual steel frames 2 will not shift, thus improving the protection effect of gabion slope protection.
[0027] Of course, the steel frame 2 is also equipped with vertical plates, horizontal plates, sliders, first bolts and insert rods. The outside of the steel frame 2 is also bound with a grid, the mesh size of which is 50mm*50mm. All of the above are existing technologies and are not shown in the figure.
[0028] The gabion dimensions can be length L = 2000mm, width B = 1000mm, and height H = 500mm. When the overlap length is 750mm, a slope of 1:0.5 can be formed; when the overlap length is 500mm, a slope of 1:1 can be formed; and when the overlap length is 250mm, a slope of 1:1.5 can be formed. Structural calculations show that the structure is safe and stable when the slope is between 1:0.5 and 1:1.5. Therefore, the overlap length between the gabions can be adjusted to obtain gabion slopes between 1:0.5 and 1:1.5.
[0029] The locking component 31 includes a locking bolt 311 and a connecting plate 312. The connecting plate 312 has a through hole for the locking bolt 311 to pass through. The top of the steel frame 2 has multiple locking screw holes 313 that cooperate with the locking bolt 311. The connecting plate 312 is horizontally set at the bottom front side of the steel frame 2. After the two steel frames 2 are staggered, the through hole on the connecting plate 312 is aligned with one of the locking screw holes 313. Then, the locking bolt 311 passes through the through hole and is screwed into the locking screw hole 313.
[0030] Both sides of the tail end of the connecting plate 312 are provided with a first rotating shaft 314. The front bottom of the steel frame 2 is provided with a plurality of first built-in grooves 21 for accommodating the connecting plate 312. The first built-in grooves 21 are provided with first rotating grooves that cooperate with the first rotating shafts 314.
[0031] Since there is no steel frame 2 directly below the bottom steel frame 2, the horizontally arranged connecting plate 312 would affect the arrangement of the permeable geotextile 1. Therefore, the connecting plate 312 is rotated and hidden in the first built-in groove 21, thereby avoiding this situation and improving practicality.
[0032] The back of the connecting plate 312 is provided with a magnetic layer, and the groove wall of the first built-in groove 21 is provided with an adsorption layer that works in conjunction with the magnetic layer. When the connecting plate 312 is not in use, the magnetic layer and the adsorption layer can stably fix the connecting plate 312 in the first built-in groove 21. When the connecting plate 312 is needed, it can be pried out by force.
[0033] The guide component 32 includes a lower suspension plate 321 and a guide rod 322. One end of the guide rod 322 is provided with a limiting block 323. The upper rear side of the steel frame 2 is provided with multiple second internal grooves 22 for accommodating the lower suspension plate 321. The groove wall of the second internal groove 22 is provided with a guide groove 23 that cooperates with the guide rod 322. The lower suspension plate 321 is vertically set on the rear end of the bottom of the steel frame 2. The other end of the guide rod 322 is fixedly connected to the lower suspension plate 321. The cooperation of the guide rod 322 and the guide groove 23 can improve the stability when separating and moving two adjacent steel frames 2, and prevent the steel frames 2 from shifting to the left or right. The lower suspension plate 321 can be hidden in the second internal groove 22. When the steel frames 2 are not separated, there is no protruding part on the outside of the steel frame 2.
[0034] The reinforcing connector 4 includes a first locking rod 41 and a second locking rod 42. The tail ends of the first locking rod 41 and the second locking rod 42 are provided with rotating blocks 43. The two sides of the rotating blocks 43 are provided with second rotating shafts 431. The first locking rod 41 and the second locking rod 42 are provided with external threads. The first locking rod 41 is screwed with a connecting threaded sleeve 44. The inner top wall and the inner bottom wall of the steel frame 2 are provided with multiple third built-in grooves 24 for accommodating the first locking rod 41. The inner walls of the left and right sides of the steel frame 2 are provided with multiple fourth built-in grooves 25 for accommodating the second locking rod 42. The third built-in grooves 24 and the fourth built-in grooves 25 are provided with second rotating grooves that cooperate with the second rotating shafts 431.
[0035] This utility model forms a new reinforcing steel bar through the first locking rod 41, the second locking rod 42, and the connecting screw sleeve 44. The difference from the prior art is that the second locking rod 42 can be removed from the connecting screw sleeve 44, allowing the connecting screw sleeve 44 to be exposed to the outside. The exposed area of the first locking rod 41 and the connecting screw sleeve 44 is small, which reduces the damage rate and extends the service life. The connecting screw sleeve 44 can also be directly replaced if damaged. When not in use, the first locking rod 41 and the connecting screw sleeve 44 can be hidden in the third built-in groove 24, and the second locking rod 42 can be hidden in the fourth built-in groove 25.
[0036] The third built-in groove 24 is provided with a first elastic clamp 241 for securing the connecting screw sleeve 44, and the fourth built-in groove 25 is provided with a second elastic clamp 251 for securing the second locking rod 42. The first elastic clamp 241 can quickly fix the connecting screw sleeve 44 and the first locking rod 41 in the third built-in groove 24, and it is also very convenient to pull out the first locking rod 41 and the connecting screw sleeve 44 from the first elastic clamp 241. The second elastic clamp 251 can quickly fix the second locking rod 42 in the fourth built-in groove 25, and it is also very convenient to pull out the second locking rod 42 from the second elastic clamp 251.
[0037] The size of the lower suspension plate 321 should be set to allow the holes in the grid to pass through, so as not to affect the staggered separation of the steel frame 2. The size of the connecting plate 312 should be set to allow the holes in the grid to pass through, so as not to affect the rotation of the connecting plate 312.
[0038] Working principle: First, adjust the position between each steel frame 2 according to the actual assembly location. Then, open the connecting plate 312 and lock it in place using the locking bolts 311 and the corresponding locking screw holes 313. After that, assemble the steel frame 2 to the slope point of the installation point.
Claims
1. A prefabricated gabion slope protection system for highway subgrade, characterized in that: The system includes a platform, a slope at the top of the platform, a permeable geotextile (1) on one side of the slope, a gravel filling layer on one side of the permeable geotextile (1), a metal mesh on the outside of the slope, and multiple reinforcement mechanisms on the inside of the metal mesh. The reinforcement mechanisms include multiple steel frames (2) and multiple locking components (3). Each of the four corners of the inner side of the steel frame (2) is provided with a reinforcing connector (4). Two adjacent steel frames (2) are detachably connected by locking components (3). The locking components (3) include multiple locking parts (31) and multiple guiding parts (32). The multiple locking parts (31) are equidistantly arranged at the bottom front side of the steel frame (2) along the length direction of the steel frame (2), and the multiple guiding parts (32) are equidistantly arranged on two adjacent steel frames (2) along the length direction of the steel frame (2).
2. The prefabricated gabion slope protection for highway subgrade according to claim 1, characterized in that: The locking component (31) includes a locking bolt (311) and a connecting plate (312). The connecting plate (312) has a through hole for the locking bolt (311) to pass through. The top of the steel frame (2) has multiple locking screw holes (313) that cooperate with the locking bolt (311). The connecting plate (312) is horizontally arranged at the bottom front side of the steel frame (2).
3. The prefabricated gabion slope protection for highway subgrade according to claim 2, characterized in that: The connecting plate (312) has a first rotating shaft (314) on both sides of its tail end. The front bottom of the steel frame (2) has a plurality of first built-in grooves (21) for accommodating the connecting plate (312). The first built-in grooves (21) are provided with first rotating grooves that cooperate with the first rotating shafts (314).
4. The prefabricated gabion slope protection for highway subgrade according to claim 3, characterized in that: The back of the connecting plate (312) is provided with a magnetic layer, and the groove wall of the first built-in groove (21) is provided with an adsorption layer that cooperates with the magnetic layer.
5. The prefabricated gabion slope protection for highway subgrade according to claim 1, characterized in that: The guide component (32) includes a lower suspension plate (321) and a guide rod (322). One end of the guide rod (322) is provided with a limiting block (323). The upper rear side of the steel frame (2) is provided with multiple second internal grooves (22) for accommodating the lower suspension plate (321). The groove wall of the second internal groove (22) is provided with a guide groove (23) that cooperates with the guide rod (322). The lower suspension plate (321) is vertically arranged on the rear end of the bottom of the steel frame (2). The other end of the guide rod (322) is fixedly connected to the lower suspension plate (321).
6. The prefabricated gabion slope protection for highway subgrade according to claim 1, characterized in that: The reinforcing connector (4) includes a first locking rod (41) and a second locking rod (42). The tail ends of the first locking rod (41) and the second locking rod (42) are provided with rotating blocks (43). The rotating blocks (43) are provided with second rotating shafts (431) on both sides. The first locking rod (41) and the second locking rod (42) are provided with external threads. The first locking rod (41) is screwed with a connecting thread sleeve (44). The inner top wall and inner bottom wall of the steel frame (2) are provided with multiple third internal grooves (24) for accommodating the first locking rod (41). The inner walls of the left and right sides of the steel frame (2) are provided with multiple fourth internal grooves (25) for accommodating the second locking rod (42). The third internal groove (24) and the fourth internal groove (25) are provided with second rotating grooves that cooperate with the second rotating shaft (431).
7. The prefabricated gabion slope protection for highway subgrade according to claim 6, characterized in that: The third built-in groove (24) is provided with a first elastic clamp (241) for securing the connecting screw sleeve (44), and the fourth built-in groove (25) is provided with a second elastic clamp (251) for securing the second locking rod (42).