Heavy rigid-flexible composite high-strength pavement device

Abstract

The utility model discloses a heavy rigid-flexible composite high-strength road surface equipment, including the road surface body, its characterized in that, the road surface body includes road surface base body and skeleton reinforcing plate, the road surface base body is the three -dimensional braid of synthetic fibre weaving and has interval tubular cavity structure, skeleton reinforcing plate is transversely inserted in the tubular cavity of road surface base body according to certain interval distance, skeleton reinforcing plate includes multicavity box body board, with epoxy resin as base body, carbon fiber is the reinforcing material, and the mould forming is made multicavity closed box body formula structure. The utility model discloses a heavy rigid-flexible composite high-strength road surface equipment adopts three -dimensional thickening tubular fabric composite closed box body board design, effectively improved the bearing capacity of composite road surface equipment, and the reliable traffic of heavy -duty vehicle is guaranteed, and the operation mode is various, and the operation is quick, and transportation is convenient.

Description

Technical Field

[0001] This utility model relates to a road surface equipment, and more particularly to a heavy-duty rigid-flexible composite road surface equipment. Background Technology

[0002] Heavy-duty wheeled and tracked vehicles are prone to slipping, sinking, and getting stuck when traversing low-load-bearing areas such as soft beaches, riverbanks, paddy fields, and muddy roads. While rigid metal (steel, aluminum alloy) pavements can improve load-bearing capacity, the pavement panels themselves are heavy, have poor resistance to seawater corrosion, are difficult to retract after deformation, and mud overflowing from the joints can cause wheel slippage. Furthermore, the length of road surface loaded per vehicle is relatively short, limiting transportation and operational options. Conversely, light and medium-duty lightweight, high-strength flexible pavements allow for longer road surfaces per vehicle and more diverse transportation and operational methods, improving vehicle performance on soft beaches and riverbanks to some extent. However, their load-bearing capacity is relatively low, limiting the load capacity of passing vehicles.

[0003] To ensure the passage of heavy vehicles under special road conditions and overcome the obstruction of low-load-bearing foundations, a high-load-bearing-grade road surface material is needed to isolate the wheels or tracks from direct contact with the foundation. This serves two purposes: first, to improve the adhesion of the wheels or tracks to soft ground, preventing wheel or track slippage; and second, to reduce the damage to the ground surface caused by heavy vehicle passage, avoiding "getting stuck" and "getting stuck" after repeated passages, thus maintaining the smoothness of the road surface. Summary of the Invention

[0004] The purpose of this utility model is to provide a heavy-duty rigid-flexible composite high-strength pavement material, which overcomes the problems of existing rigid pavement materials such as large unit area weight, limited transportation and laying methods, slow laying speed, poor corrosion resistance, wear resistance and anti-skid properties, and difficulty in retraction after deformation. At the same time, it improves the load-bearing capacity of the composite pavement material and overcomes the problems of its limited adaptability to muddy tidal flat conditions and the limited load rating of passing vehicles.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: A heavy-duty rigid-flexible composite high-strength road surface material includes a road surface body, characterized in that the road surface body includes a road surface substrate and a skeleton reinforcement plate. The road surface substrate is a three-dimensional woven fabric made of synthetic fibers and has a spaced tubular structure. The skeleton reinforcement plate is transversely inserted into the cavities of the road surface substrate at certain intervals. The skeleton reinforcement plate includes a multi-cavity box plate, which uses epoxy resin as the substrate and carbon fiber as the reinforcing material, and is molded into a multi-cavity closed box structure.

[0006] The pavement substrate is the load-bearing base of the pavement, mainly composed of three-dimensional synthetic fiber fabric, used to isolate the wheels or tracks of passing vehicles from the original roadbed, thereby improving the bearing capacity of the foundation. The pavement substrate is woven from synthetic fibers, selected from one or more of polyethylene and aramid fibers. High-strength, high-modulus polyethylene fibers are preferred, woven using heavy-duty thickening weaving and layer-changing techniques to create a flexible three-dimensional woven fabric with a spaced tubular structure, forming a composite fabric. Preferably, the rutted areas of the pavement substrate use aramid fiber composite weaving to form rut reinforcement strips, improving the pavement's adhesion and high-temperature resistance; furthermore, aramid fiber composite weaving is used in the rut reinforcement strips to form rut reinforcement ribs.

[0007] Furthermore, to enhance the wear resistance and tread resistance of the pavement substrate, the entire pavement substrate is treated with a gel.

[0008] The aforementioned reinforcing plate is the reinforcing skeleton of the road surface, mainly composed of multi-cavity box plates, buffer sheets, etc. It is transversely inserted into the cavities of the road surface substrate at certain intervals, mainly used to flatten the road surface, enhance its load-bearing capacity and resilience, and equalize the pressure and tension borne by the road surface under load.

[0009] Furthermore, a buffer sheet is attached to the upper end of the multi-cavity box plate in the skeleton reinforcement plate, and the buffer sheet is preferably a glass fiber felt reinforced thermoplastic composite material (GMT).

[0010] The road surface also includes edge adhesive tape and anchoring rings, etc. The edge adhesive tape is disposed around the road surface substrate; the anchoring rings are distributed on the edge adhesive tape.

[0011] The road surface also includes a joint device, which comprises a joint fabric and a joint rod. The joint fabric is sewn to both ends of the road surface substrate, and the joint rod is inserted into the channels formed by the alternating concave and convex joint fabrics of the two connected road surface substrates. It is recommended that the joint rod be made of a reinforcing skeleton plate.

[0012] The road surface also includes a mooring device, comprising fixed piles, pile caps, and pile pullers, as well as tools such as picks and hammers. The fixed piles include round piles, double-pile connecting plates (two round piles and a connecting plate connected in a U-shape), and sheet piles, which can be selected according to the softness of the foundation and the load capacity. During pile installation, the pile cap is placed on the pile head for guidance. The pile puller is used to remove the fixed piles during withdrawal.

[0013] The aforementioned heavy-duty rigid-flexible composite high-strength road surface equipment also includes auxiliary devices. These auxiliary devices are mainly used to assist in operations and use, and consist of a towing cloth, towing deployment rope, strapping, waterproof packaging bags, and a helicopter hoisting device.

[0014] Beneficial Effects: This utility model's heavy-duty rigid-flexible composite high-strength pavement material features a rigid-flexible composite pavement design that effectively improves the load-bearing capacity of the composite pavement material. It also offers diverse operating methods, rapid paving and dismantling, and convenient transportation. It can be used on low-load-bearing areas such as soft beaches, riverbanks, paddy fields, and muddy roads, ensuring reliable passage for heavy vehicles. It can also be used to construct emergency access routes for disaster relief and rescue, as well as helicopter landing pads. The advantages include: 1. The skeleton reinforcement plate adopts composite pavement stiffness and flexibility control technology and uses a multi-cavity closed box plate to improve the lateral stiffness and load-bearing capacity of the pavement; the multi-cavity box plate is covered with GMT buffer sheet, which effectively improves the wear resistance and anti-treading ability of the skeleton reinforcement plate.

[0015] 2. The three-dimensional pavement substrate adopts thick and wide tubular fabric weaving technology, and the overall composite molding of pavement fabric and the rut reinforcement weaving process solve the technical problems such as the control of the tightness of the skeleton reinforcement plate channel, which enhances the fracture resistance and tear resistance of the three-dimensional pavement substrate and improves the wear resistance of the pavement under heavy track load.

[0016] 3. The overall road surface design makes individual road sections lighter than metal road surfaces, and road sections can be quickly joined and disassembled. The road surface can be laid using various methods, including manual labor, simple machinery, and mechanized operations, resulting in quick paving, convenient transportation, and flexible use. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the pavement structure of heavy-duty rigid-flexible composite high-strength pavement equipment. The components include: 1. Road surface substrate; 2. Rut reinforcement; 3. Skeleton reinforcement plate; 4. Anchoring hole ring; 5. Edge tape; 6. Rut reinforcement strip; and 7. Joint cloth.

[0018] Figure 2 This is a cross-sectional view of the skeleton reinforcement plate; Among them, 8 is the upper road surface substrate, 9 is the lower road surface substrate, 10 is the multi-cavity box slab, and 11 is the buffer sheet. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below through specific embodiments. However, it should be noted that the following embodiments are only used to describe the content of the invention and do not constitute a limitation on the protection scope of this utility model.

[0020] According to the present invention, a heavy-duty rigid-flexible composite high-strength road surface material has the following performance indicators and requirements: 1. Road surface load capacity: Wheeled load: LT-20, Tracked load: LD-60; 2. Suitable for various foundation conditions: soft beaches, riverbanks, paddy fields with waterways, muddy roads, and other low-bearing-capacity foundations; 3. Single road segment: width not less than 4m, length not less than 7m, weight not exceeding 360kg. Each segment can be quickly spliced ​​together; 4. Laying and dismantling operation methods: convenient for manual labor, simple machinery, or mechanized methods for laying and dismantling; 5. Transportability: Facilitates transport by boat, vehicle, or helicopter; 6. Other: It has strong resistance to seawater corrosion and can resist acid, alkali and salt spray corrosion.

[0021] like Figure 1 As shown, the heavy-duty rigid-flexible composite high-strength pavement equipment includes a pavement body, mainly composed of a pavement substrate 1, a skeleton reinforcement plate 3, anchoring rings 4, edge tape 5, a joint device, and a mooring device. The pavement substrate 1 is a three-dimensional fiber fabric woven from polyethylene fiber and aramid fiber, with an intermittent tubular structure. The skeleton reinforcement plate 3 is transversely inserted into the cavities of the pavement substrate 1 at certain intervals. The skeleton reinforcement plate 3 includes a multi-cavity box plate, using epoxy resin as the matrix and large-tow carbon fiber as the reinforcing material, and is molded into a multi-cavity closed box structure.

[0022] The road surface substrate 1 is the basic carrier for road surface load-bearing, mainly used to isolate the wheels or tracks of passing vehicles from the original roadbed, improve the bearing capacity of the foundation, and improve the ability of vehicles to pass through low-bearing-capacity areas such as beaches, deserts, snowfields, and muddy areas. The road surface substrate 1 includes a flexible three-dimensional fiber woven fabric, rut reinforcement strip 6, rut reinforcement 2, and a coating. The three-dimensional fiber woven fabric is woven into a flexible, spaced-cavity structure using heavy-duty thickening weaving and layer-changing technology. The fabric is formed in one piece, with a main body width of over 3.8m and a length of not less than 7m. The three-dimensional fiber woven fabric is mainly made of high-strength, high-modulus polyethylene (commonly known as rayon). In the rut area, aramid fiber is used as the main material to form the rut reinforcement strip 6, improving the road surface's adhesion and high-temperature resistance. Simultaneously, a set of parallel rut reinforcement ribs 2, 5cm wide and 0.3cm thick, are further woven with aramid fiber material in the rut area. To enhance the wear resistance and tread resistance of the road surface, the road substrate 1 is integrally treated with adhesive, with a thickness of approximately 4mm after molding. The adhesive, consisting of polyurethane, epoxy resin, and anti-slip coating, is sprayed or brushed onto the surface of the road substrate 1, penetrating and sealing within the fabric gaps. This effectively prevents the infiltration of mud and sand, resulting in a smooth, non-slip, elastic road surface that is resistant to seawater corrosion and oil stains. Illuminated rut markers are installed on the road substrate 1 at rut locations.

[0023] The skeleton reinforcement plate 3 is the main load-bearing component of the road surface. It is transversely inserted into the cavities of the three-dimensional road surface matrix 1 at certain intervals. Its main function is to flatten the road surface, improve its overall rigidity, enhance its load-bearing capacity and resilience, and homogenize the pressure and tension borne by the road surface under load. The skeleton reinforcement plate 3 consists of a multi-cavity box plate 10 and a GMT buffer sheet 11, as shown below. Figure 2 As shown, the multi-cavity box-type plate 10 uses large-tow carbon fiber as reinforcement and epoxy resin as the matrix. It is manufactured into a multi-cavity closed box-type structure using a continuous pultrusion molding method. This structure is a cuboid, with a length approximately equal to the width of the road surface substrate 1. The sides can tightly accommodate the cavities of the road surface substrate 1, and its cross-section contains more than three rectangular closed cavities formed by vertical division. The fibers are densely packed into the mold with the cross-section of carbon fiber plate, and the fibers are completely cured after impregnation, resulting in a regular cross-section. The upper surface of the multi-cavity box-type plate 10 is covered with GMT buffer sheets 11, which can effectively improve the wear resistance and puncture resistance of the skeleton reinforcement plate. After the skeleton reinforcement plate is combined with the three-dimensional road surface substrate, it has a piano key-like shape, and the lateral rigidity is significantly enhanced.

[0024] The edge adhesive tape 5 is disposed around the pavement substrate 1 and is used to fix the anchoring rings 4. The anchoring rings 4 are distributed on the edge adhesive tape 5 around the pavement substrate 1. The fixing piles in the mooring device pass through the anchoring rings 4, and the pavement substrate 1 is fixed to the foundation by mooring tension, thereby realizing the fixing, tensioning and unloading of the three-dimensional pavement body.

[0025] The joint device includes a joint cloth 7 and a joint rod. The joint cloth 7 is sewn to both ends of the road surface substrate 1. The joint rod is inserted into the openings formed by the alternating concave and convex joint cloths of the two connected road surface substrate 1 sections. After aligning the joint cloth 7 sections with the alternating concave and convex joint cloths, rectangular holes are opened. The joint rod (recommended: a skeleton reinforcement plate) is then inserted laterally into the connected rectangular holes to connect the two road surface sections.

[0026] The mooring device is mainly used for the installation and removal of road surface mooring piles. It consists of a mooring pile, pile cap, pile puller, pick, hammer, and other tools. The mooring piles include both round piles and sheet piles, which can be selected according to the softness of the foundation and the load capacity. During installation, the pile cap is placed on the pile head to guide the pile and reduce damage to the mooring pile caused by the pick and hammer. During removal, the mooring pile is removed using the pile puller.

[0027] The heavy-duty rigid-flexible composite high-strength road surface equipment described in this utility model also includes auxiliary devices. These auxiliary devices are mainly used to assist in operation and use, and consist of a towing cloth, a towing deployment rope, strapping straps, waterproof packaging bags, and a helicopter-launching device.

[0028] The unit section length of the heavy-duty rigid-flexible composite high-strength pavement material is 7m to 8m, taking manual paving as an example: Eight workers can directly transport, push, roll, and pull the road surface to extend it through splicing and anchoring. Each two road sections are connected by a reinforcing frame plate (which also serves as a connecting rod). Inserting or removing the connecting rod allows for the combination or disassembly of multiple road sections. Before connection, two workers on each side work together to align the joints of adjacent road sections. During connection, two workers are required: one aligns the alternating double-layered joint fabric and opens it into a rectangular hole, while the other inserts the connecting rod from one side of the road surface through the rectangular hole to the other. After insertion, the locking caps at both ends are engaged. After the road surface is laid, a different number of anchor piles should be used to secure it, depending on the road conditions and the load level of passing vehicles.

[0029] This utility model offers diverse methods for laying and dismantling road surface equipment, allowing for both manual and mechanized installation, with flexible selection based on actual conditions. The laying method is simple and quick, enabling rapid completion of tasks. Considering the uncertainty of total road length requirements in actual use, the road surface can be longitudinally extended at any two ends, accommodating different lengths of road surface. It meets the transportation needs of heavy vehicles requiring frequent and rapid passage. The material's strength and stiffness are appropriately matched, ensuring even distribution of vehicle loads throughout the road system. Furthermore, the road surface exhibits minimal overall deformation and good resilience after high-frequency compaction. The material performs well in corrosive environments, resisting corrosion from acids, alkalis, and salt spray, and possesses excellent dimensional stability. The road surface equipment can be dismantled in rolls or folds. The compact size of the dismantled equipment facilitates transport by vehicles, ships, and other general transportation, and can also be airlifted by helicopter.

Claims

1. A heavy-duty rigid-flexible composite high-strength road surface material, comprising a road surface body, characterized in that, The road surface body includes a road surface substrate and a skeleton reinforcement plate. The road surface substrate is a three-dimensional woven fabric made of synthetic fibers and has a spaced tubular structure. The skeleton reinforcement plate is transversely inserted into the cavities of the road surface substrate at certain intervals. The skeleton reinforcement plate includes a multi-cavity box plate, which uses epoxy resin as the substrate and carbon fiber as the reinforcing material and is molded into a multi-cavity closed box structure.

2. The heavy-duty rigid-flexible composite high-strength road surface material according to claim 1, characterized in that, A buffer sheet is attached to the upper end of the multi-cavity box plate in the skeleton reinforcement plate.

3. The heavy-duty rigid-flexible composite high-strength road surface material according to claim 1, characterized in that, The synthetic fiber is selected from one or more of polyethylene fiber and aramid fiber.

4. The heavy-duty rigid-flexible composite high-strength road surface material according to claim 1, characterized in that, The rutted sections of the road surface substrate are reinforced with aramid fiber composite weaving to form rutted reinforcement strips.

5. The heavy-duty rigid-flexible composite high-strength road surface material according to claim 4, characterized in that, The rut reinforcement strip is made of aramid fiber composite woven rut reinforcement.

6. The heavy-duty rigid-flexible composite high-strength road surface material according to claim 1, characterized in that, The road surface substrate is treated with an adhesive.

7. The heavy-duty rigid-flexible composite high-strength road surface material according to claim 1, characterized in that, The road surface body also includes edge tape and anchoring hole rings. The edge tape is disposed around the perimeter of the road surface base, and the anchoring hole rings are distributed on the edge tape.

8. The heavy-duty rigid-flexible composite high-strength road surface material according to claim 1, characterized in that, The road surface also includes a joint device, which includes a joint cloth and a joint rod. The joint cloth is sewn to both ends of the road surface substrate, and the joint rod is inserted into the channels formed by the alternating concave and convex joint cloths of the two connected road surface substrates.

9. The heavy-duty rigid-flexible composite high-strength road surface material according to claim 1, characterized in that, The road surface also includes a mooring device, including a fixed pile, a pile cap, and a pile driver.

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