Low-carbon environment-friendly geogrid based on waste tires
By using obliquely inserted fixed steel bars and broken nails in the geogrid, combining threaded connections and limit structures, and using waste tire materials, the problems of insufficient economic and environmental protection of existing geogrid materials are solved, and the problem of incomplete economic and environmental protection of existing geogrid materials is achieved. The stable fixation and recycling of waste tires during wind blowing are suitable for scenes such as flexible slope support and river embankment protection.
Patent Information
- Application Number
- CN202323661121.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The existing geogrid materials are poor in economical and environmentally friendly, and are prone to loosening when blown by wind, resulting in a reduced fixation effect and cannot meet the needs of a large number of scenes such as flexible slope support and river bank slope protection.
Using a low-carbon and environmentally friendly geogrid design based on discarded tires, the lateral contact area of the ground is increased by setting obliquely inserted fixed steel bars and broken soil nails in the grille body, and combining threaded connections and limit structures to ensure that the grille is blown in the wind. Do not loosen when moving, and use waste tires to recycle materials to improve economical and environmental protection.
It realizes stable fixation of the grille when the wind blows, solves the environmental pollution problem of waste tires, has low-carbon, environmentally friendly and economical geogrid characteristics, and is suitable for projects such as flexible road cuttings and river embankment erosion.
Smart Images
Figure CN222362461U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of geogrids, in particular to a low-carbon and environment-friendly geogrid based on waste tires. Background Art
[0002] Civil grids are grids made of polymer materials, which are mainly laid on the ground. The grids are used to reinforce the land and prevent it from loosening, making it easier to reinforce the land and reduce soil erosion.
[0003] Traditional geogrid raw materials are made of high molecular weight polypropylene and polyethylene materials with high-strength fibers added, and have high-strength characteristics. During installation, the grid is laid at the designated position and the steel bars are inserted into the ground to fix the grid at the designated position. It is suitable for high-tensile force, high-strength crack resistance usage scenarios.
[0004] However, in the implementation of relevant technologies, it was found that the existing civil grids have the following problems: a large number of flexible slope supports, river embankment slope protection, and slope impact resistance application scenarios do not require such high strength and tensile values, and there is a serious excess of material safety redundancy. The raw materials of traditional geogrids are all derived from petrochemical derivatives, with poor economy and environmental protection, which runs counter to the current "dual carbon" strategic requirements. In addition, the existing civil grids will tend to move upward when blown by the wind. After the steel bars are vertically inserted into the ground, the lateral contact area with the ground is small, which makes the steel bars easy to loosen as the civil grid moves upward, thereby causing the steel bars to detach, reducing the fixing effect of the civil grid and reducing the impact of the steel bars on the ground. In view of this, a low-carbon and environmentally friendly geogrid based on waste tires is provided to overcome the above-mentioned defects. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and proposes a low-carbon and environment-friendly geogrid based on waste tires.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a low-carbon and environmentally friendly geogrid based on waste tires, including a grid body, a plurality of skeleton materials and belt materials are arranged inside the grid body, a fixing plate is arranged at the top of the grid body, a first limiting hole is opened at the top of the fixing plate, a first fixing steel bar is slid inside the first limiting hole, a first threaded hole is opened inside the first fixing steel bar, a limiting bolt is threadedly connected inside the first threaded hole, a nut is threadedly connected to the side of the limiting bolt, a first positioning hole is opened at the top of the fixing plate, a second fixing steel bar is slid inside the first positioning hole, a second threaded hole is opened inside the second fixing steel bar, and the inside of the second threaded hole is threadedly connected to the side of the limiting bolt.
[0007] As a further description of the above technical solution: a first ground-breaking nail is fixedly provided at the bottom end of the first fixed steel bar, and a second ground-breaking nail is fixedly provided at the bottom end of the second fixed steel bar. The first ground-breaking nail facilitates nailing the first fixed steel bar into the ground.
[0008] As a further description of the above technical solution: a first baffle is fixedly provided on the side of the first fixed steel bar, and the bottom end of the first baffle is in contact with the top end of the fixed plate. The first baffle facilitates the positioning of the first fixed steel bar so that the first threaded hole and the second threaded hole are located on the same axis.
[0009] As a further description of the above technical solution: a second baffle is fixedly provided on the side of the second fixed steel bar, and the bottom end of the second baffle is in contact with the top end of the fixed plate, so that the second baffle is convenient for limiting the second fixed steel bar.
[0010] As a further description of the above technical solution: a limit block is fixedly provided at the bottom end of the fixing plate, and the side surface of the limit block is in contact with the inner side of one of the grooves of the grille body, so that the limit block facilitates the preliminary positioning of the fixing plate.
[0011] As a further description of the above technical solution: a second limiting hole is opened inside the limiting block, and the inside of the second limiting hole and the side of the first fixed steel bar slide against each other, and the first fixed steel bar facilitates fixing the fixed plate.
[0012] As a further description of the above technical solution: a second positioning hole is opened inside the limit block, and the inside of the second positioning hole and the side of the second fixing steel bar slide against each other, and the second fixing steel bar facilitates fixing the second fixing plate.
[0013] As a further description of the above technical solution: the top end of the fixing plate is threadedly connected with a plurality of screws, and the side surfaces of the plurality of screws are threadedly connected with the top end of the grille body, and the screws facilitate fixing the fixing plate to the grille body.
[0014] The utility model has the following beneficial effects:
[0015] The utility model designs a low-carbon and environment-friendly geogrid based on waste tires. Through design coordination, the first fixed steel bars and the second fixed steel bars are obliquely inserted into the ground, so that the lateral contact area between the first fixed steel bars and the second fixed steel bars and the ground is increased. When the grid body is blown by the wind so that the grid body has an upward trend, the first fixed steel bars and the second fixed steel bars are not easy to loosen through the upper narrow and lower wide structure of the combination of the first fixed steel bars and the second fixed steel bars. The grid is made of recycled waste tires, which not only solves the environmental pollution problem of waste tires, but also achieves better circular economic benefits. It is a low-carbon, environmentally friendly and economical geogrid. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the installation structure of the limit block of the utility model;
[0018] Figure 3 This is a schematic diagram of the installation structure of the limit bolt of the utility model;
[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the grille main body of the utility model;
[0020] Figure 5 It is a schematic diagram of the connection structure of the grille main body of the utility model.
[0021] Legend:
[0022] 1. Grille body; 2. Frame material and belt material; 3. Fixing plate; 4. First fixing steel bar; 5. First threaded hole; 6. Limit bolt; 7. Nut; 8. Second fixing steel bar; 9. Second threaded hole; 10. First ground-breaking nail; 11. Second ground-breaking nail; 12. First baffle; 13. Second baffle; 14. Limit block; 15. Screw. DETAILED DESCRIPTION
[0023] Reference Figure 1-Figure 5 The utility model provides a low-carbon and environmentally friendly geogrid based on waste tires: it includes a grid body 1, a plurality of skeleton materials and belt materials 2 are arranged inside the grid body 1, the skeleton materials and belt materials 2 are convenient to improve the strength of the grid body 1, a fixing plate 3 is arranged at the top of the grid body 1, the fixing plate 3 is convenient to fix the grid body 1 on the ground, a first limiting hole is opened at the top of the fixing plate 3, a first fixing steel bar 4 is slid inside the first limiting hole, the first fixing steel bar 4 is convenient to fix the fixing plate 3, a first threaded hole 5 is opened inside the first fixing steel bar 4, the internal thread connection of the first threaded hole 5 is a limiting bolt 6, the limiting bolt 6 is convenient to fix the first fixing steel bar 4 and the second fixing steel bar 8 together, the side of the limiting bolt 6 is threadedly connected with a nut 7, a first positioning hole is opened at the top of the fixing plate 3, a second fixing steel bar 8 is slid inside the first positioning hole, a second threaded hole 9 is opened inside the second fixing steel bar 8, and the inside of the second threaded hole 9 is threadedly connected with the side of the limiting bolt 6.
[0024] As a further implementation scheme of the above technical scheme: a first ground-breaking nail 10 is fixedly provided at the bottom end of the first fixed steel bar 4, and a second ground-breaking nail 11 is fixedly provided at the bottom end of the second fixed steel bar 8. The first ground-breaking nail 10 facilitates nailing the first fixed steel bar 4 into the ground.
[0025] As a further implementation scheme of the above technical scheme: a first baffle 12 is fixedly provided on the side of the first fixed steel bar 4, and the bottom end of the first baffle 12 is in contact with the top end of the fixed plate 3. The first baffle 12 facilitates positioning of the first fixed steel bar 4 so that the first threaded hole 5 and the second threaded hole 9 are located on the same axis.
[0026] As a further implementation scheme of the above technical scheme: a second baffle 13 is fixedly provided on the side of the second fixed steel bar 8, and the bottom end of the second baffle 13 is in contact with the top end of the fixed plate 3, so that the second baffle 13 is convenient for limiting the second fixed steel bar 8.
[0027] As a further implementation scheme of the above technical scheme: a limit block 14 is fixedly provided at the bottom end of the fixing plate 3, and the side surface of the limit block 14 is in contact with the inner side of one of the grooves of the grille body 1, so that the limit block 14 is convenient for preliminary positioning of the fixing plate 3.
[0028] As a further implementation scheme of the above technical scheme: a second limiting hole is opened inside the limiting block 14, and the inside of the second limiting hole slides with the side of the first fixed steel bar 4, so that the first fixed steel bar 4 is convenient for fixing the fixed plate 3.
[0029] As a further implementation scheme of the above technical scheme: a second positioning hole is opened inside the limiting block 14, and the inside of the second positioning hole and the side of the second fixing steel bar 8 slide against each other, so that the second fixing steel bar 8 is convenient for fixing the second fixing plate 3.
[0030] As a further implementation scheme of the above technical scheme: the top of the fixing plate 3 is threadedly connected with a plurality of screws 15 , and the sides of the plurality of screws 15 are threadedly connected with the top of the grille body 1 , so that the screws 15 facilitate fixing the fixing plate 3 on the grille body 1 .
[0031] Working principle:
[0032] When using the utility model, the grille body 1 is laid flat on the ground, the limiting groove is placed in one of the corresponding grooves of the grille body 1, and the fixing plate 3 is preliminarily positioned. At this time, the fixing plate 3 is fixed to the grille body 1 by a plurality of screws 15. At this time, the first fixing steel bar 4 is placed in the first limiting hole and the second limiting hole, and the first fixing steel bar 4 is hit by a hammer so that the first fixing steel bar 4 is nailed into the soil. The first soil-breaking nail 10 is used to reduce the resistance of the first fixing steel bar 4 when it is nailed into the soil. When the first baffle 12 is fitted with the top of the fixing plate 3, the first fixing steel bar 4 is stopped from being hit, and the second fixing steel bar 8 is placed in the first positioning hole. The second fixing steel bar 8 is hammered into the hole and the second positioning hole, so that the second fixing steel bar 8 is nailed into the soil. When the second baffle plate 13 fits with the top of the fixing plate 3, the hammering of the second fixing steel bar 8 is stopped. At this time, the limit screw 15 is threadedly connected through the first threaded hole 5 and the second threaded hole 9 in sequence to fix the first fixing steel bar 4 and the second fixing steel bar 8 together. The nut 7 is then used to improve the stability of the first fixing steel bar 4 and the second fixing steel bar 8. The first fixing steel bar 4 and the second fixing steel bar 8 are obliquely inserted into the ground, so that the lateral contact area between the first fixing steel bar 4 and the second fixing steel bar 8 and the ground is increased. When the grille When the main body 1 is blown by the wind so that the grille main body 1 tends to move upward, the first fixing steel bar 4 and the second fixing steel bar 8 are combined into a narrow upper and wide lower structure, so that the first fixing steel bar 4 and the second fixing steel bar 8 are not easy to loosen, which can improve the stability of the fixing plate 3 on the grille main body 1, and facilitate the stability of the device when fixing the grille main body 1. The grille main body 1 is made of a composite structure of two main materials made of recycled waste tire rubber, a skeleton material and a belt material 2, wherein the skeleton material and the belt material 2 can also be made of recycled nylon fibers or high-performance fiber materials from waste tires. By The surface is modified to achieve good bonding between the reused rubber materials and nylon fibers and high-performance fiber materials. The roughening of the surface section of the reinforcement belt and the special design of the cross-sectional shape and size of the reinforcement belt ensure that the grid has a good anchoring and reinforcement effect, which makes up for the defect of the large ductility of the grid and avoids the problem of grid breakage caused by excessive pressure during compaction. It can be used as a reinforcement material for projects such as flexible support of road cuttings and river embankment scour prevention. At the same time, the grid is made of recycled waste tires, which not only solves the environmental pollution problem of waste tires, but also achieves better circular economic benefits. It is a low-carbon, environmentally friendly and economical geogrid.
[0033] (1) Main material production of ribs: The main component of the grille body 1 is the rubber products of the inner tube and outer tube of discarded tires, which are crushed (including room temperature crushing, frozen crushing, wet crushing, solution crushing, etc.), cracked, thermoplasticized and modified. The modified materials can be resins, fibers, polymers and other admixtures, modifiers, and compounding agents. The process involves modification mechanisms such as physical blending and chemical blending. The modified materials have good tensile strength, peeling resistance, aging resistance and corrosion resistance.
[0034] (2) Skeleton material and belt material 2: In order to ensure that the ribs have sufficient tensile strength and deformation resistance, the ribs of the grille body 1 are wrapped with "skeleton material and belt material 2" to form a composite force-bearing structure. Skeleton material and belt material 2 can be nylon fiber or high-performance fiber material according to the specific mechanical performance index requirements. When high-performance fiber materials are used, their basic mechanical requirements are that the strength is greater than 2.5GPa and the modulus is higher than 55GPa. On a macro scale, they have the characteristics of high strength and high modulus, thermal stability, fatigue resistance, and puncture resistance. Specifically, they can be aramid, polyimide, polyarylate, polyketone fiber and other materials.
[0035] The nylon fiber or high-performance fiber material used in the skeleton material and the belt material 2 can utilize the belt material in waste tires, or can also adopt nylon fiber or high-performance fiber material products.
[0036] (3) Interface modification of skeleton material and belt material 2: In order to improve the interfacial bonding performance between waste tire materials (rubber materials) and skeleton materials and belt materials, and to improve the inertness of functional groups of high-performance fibers so that they form chemical bonds with rubber for better interfacial bonding, physical methods, chemical methods, and coating methods can be used to modify the surface of high-performance fibers. Among them, the physical method is to increase the roughness of high-performance fibers or to make groups with high reaction activity appear on the fiber surface through physical means such as ultraviolet irradiation and gamma-ray radiation, thereby improving the physical and mechanical connection performance of the connection interface; the chemical method is to oxidize and nitrate the surface of high-performance fibers, and chlorosulfonate them to improve the interfacial bonding under the action of chemical bonds and functional groups; the coating method is to coat and dip the surface interface of high-performance fibers to enhance their interfacial performance with rubber.
[0037] (4) Roughening of the surface cross section of the reinforcement belt: In order to improve the contact friction between the surface of the reinforcement belt and the soil, measures such as surface melting sand and setting protrusions or grooves are adopted to effectively improve the contact physical bite force between the surface of the reinforcement belt and the soil, thereby improving the overall mechanical properties of the grid body 1.
[0038] (5) Cross-sectional shape and size of the reinforcement: In order to increase the contact area between the reinforcement and the soil and ensure that the reinforcement has good tensile properties, the cross-sectional shape includes several basic forms such as square, rectangle, diamond, ellipse, circle, and combination.
[0039] (6) Plane arrangement and combination of reinforcement bands: The combination of reinforcement bands includes strip, beam, mesh and plate types.
[0040] (7) Node treatment: In-plane reinforcement and out-of-plane reinforcement are adopted.
[0041] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A low-carbon and environmentally friendly geogrid based on waste tires, comprising a grid body (1), characterized in that: The grille body (1) is provided with a plurality of frame materials and belt materials (2) inside. The top of the grille body (1) is provided with a fixing plate (3). The top of the fixing plate (3) is provided with a first limiting hole. A first fixing steel bar (4) slides inside the first limiting hole. A first threaded hole (5) is provided inside the first fixing steel bar (4). The first threaded hole (5) is threadedly connected to a limiting bolt (6). The side of the limiting bolt (6) is threadedly connected to a nut (7). The top of the fixing plate (3) is provided with a first positioning hole. A second fixing steel bar (8) slides inside the first positioning hole. A second threaded hole (9) is provided inside the second fixing steel bar (8). The inside of the second threaded hole (9) is threadedly connected to the side of the limiting bolt (6).
2. The low-carbon and environmentally friendly geogrid based on waste tires according to claim 1 is characterized by: A first ground-breaking nail (10) is fixedly provided at the bottom end of the first fixing steel bar (4), and a second ground-breaking nail (11) is fixedly provided at the bottom end of the second fixing steel bar (8).
3. The low-carbon and environmentally friendly geogrid based on waste tires according to claim 1 is characterized by: A first baffle (12) is fixedly provided on the side surface of the first fixed steel bar (4), and the bottom end of the first baffle (12) is in contact with the top end of the fixed plate (3).
4. The low-carbon and environmentally friendly geogrid based on waste tires according to claim 1 is characterized by: A second baffle plate (13) is fixedly provided on the side surface of the second fixed steel bar (8), and the bottom end of the second baffle plate (13) is in contact with the top end of the fixed plate (3).
5. The low-carbon and environmentally friendly geogrid based on waste tires according to claim 1 is characterized by: A limiting block (14) is fixedly provided at the bottom end of the fixing plate (3), and a side surface of the limiting block (14) is in contact with the inner side of one of the grooves of the grille body (1).
6. The low-carbon and environmentally friendly geogrid based on waste tires according to claim 5, characterized in that: A second limiting hole is provided inside the limiting block (14), and the inside of the second limiting hole and the side surface of the first fixed steel bar (4) slide relative to each other.
7. The low-carbon and environmentally friendly geogrid based on waste tires according to claim 6, characterized in that: A second positioning hole is provided inside the limiting block (14), and the inside of the second positioning hole and the side surface of the second fixing steel bar (8) slide relative to each other.
8. The low-carbon and environmentally friendly geogrid based on waste tires according to claim 1 is characterized by: The top end of the fixing plate (3) is threadedly connected to a plurality of screws (15), and the side surfaces of the plurality of screws (15) are threadedly connected to the top end of the grille body (1).