Honeycomb assembly type pavement structure and construction equipment and method thereof

Abstract

This invention discloses a honeycomb-shaped prefabricated pavement structure and its construction equipment and method. The pavement structure design involves filling the joints between the honeycomb precast blocks, followed by sealing treatment and asphalt surface paving. This creates a rigid-flexible composite interlocking system between the rigid base structure and the upper flexible asphalt structure, overcoming smearing and preventing shrinkage cracks in the rigid base. Open-graded asphalt materials are used to achieve interlayer drainage and prevent water stagnation. Modular block design and the synergistic effect of the honeycomb structure disperse the thermal shrinkage stress generated by temperature and humidity shrinkage deformation, extending service life. Compared to traditional road pavements, the stress distribution is more uniform and the flexibility is higher. The prefabricated installation of the pavement base using a dedicated mechanical paving system significantly improves on-site work efficiency. Furthermore, the hexagonal block molds are optimized during the factory prefabrication stage, utilizing an asymmetric side-loaded structure to achieve uniform and dense concrete forming. The secondary placement technology of fine aggregate concrete on the top surface ensures surface smoothness.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated pavement technology, and more specifically, relates to a honeycomb prefabricated pavement structure and its construction equipment and method. Background Technology

[0002] Traditional municipal roads inevitably face problems such as long construction cycles, high life-cycle maintenance costs, and significant environmental disturbances during construction and maintenance. Traditional construction techniques are gradually becoming unable to meet development needs.

[0003] Traditional road structures, which connect rigid and flexible structural layers in a planar stacking manner, suffer from common problems such as the flexible asphalt structural layer pushing and shoving, and shrinkage cracks in rigid and semi-rigid base layers. Meanwhile, full-thickness road structures are prohibitively expensive. Therefore, a prefabricated pavement structure and its construction method should be provided that is simple to construct and maintain, has strong impact and fatigue resistance, and is suitable for large-scale application. Summary of the Invention

[0004] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a honeycomb-shaped prefabricated pavement structure and its construction equipment and method. The pavement structure design involves filling the joints between the honeycomb-shaped precast blocks, followed by sealing treatment and asphalt surface paving. This creates a rigid-flexible composite interlocking system between the rigid base structure and the upper flexible asphalt structure, overcoming smearing and preventing shrinkage cracks in the rigid base. Open-graded asphalt materials are used to achieve interlayer drainage and prevent water stagnation. Modular block design and the synergistic effect of the honeycomb structure disperse the thermal shrinkage stress generated by temperature and humidity shrinkage deformation, extending service life. Compared to traditional road pavements, the stress distribution is more uniform and the flexibility is higher. The prefabricated installation of the pavement base using a dedicated mechanical paving system significantly improves on-site work efficiency. Furthermore, the hexagonal block molds are optimized during the factory prefabrication stage, utilizing an asymmetric side-loaded structure to achieve uniform and dense concrete forming. The secondary placement technology of fine aggregate concrete on the top surface ensures surface smoothness.

[0005] To achieve the above objectives, according to a first aspect of the present invention, a honeycomb-shaped prefabricated road structure includes:

[0006] The layers laid from bottom to top are: solidified soil layer, medium sand leveling layer, honeycomb block assembly layer, joint filling layer, tack coat asphalt, stone chip layer, and tack coat asphalt and asphalt concrete.

[0007] The solidified soil layer consists of cement and crushed stone; the medium sand leveling layer consists of medium sand; the honeycomb block assembly layer is formed by multiple honeycomb blocks surrounding each other and paving; the gap filling layer fills the gaps between the blocks and its composition is ATB-25 asphalt crushed stone.

[0008] The block is a hexagonal pyramid shape with a narrowed upper part. The funnel-shaped gap between adjacent blocks is an opening. The angle of the opening is such that the asphalt mixture can be squeezed into the groove under the vibration and compaction of the rubber wheel. The gap at the bottom of the opening is not less than 2.5 times the size of the embedded crushed stone particles.

[0009] Preferably, the block has an overall height of 21cm, a lower height of 10-12cm, an upper width of 22.04cm, a lower width of 32.04cm, and a lower diagonal of 35cm.

[0010] Preferably, the following are included: the volume of ATB-25 asphalt aggregate is 0.35 m³ / m²; the volume of stone chips in the stone chip layer is 0.004 m³ / m²; the tack coat asphalt component is PC-3 type emulsified asphalt tack coat oil, and the volume of emulsified asphalt sprayed per square meter area is 0.4 L / m².

[0011] Preferably, the solidified soil layer has a thickness of 300-400 mm; the medium sand leveling layer has a thickness of 4-6 mm; and the gap between the honeycomb block assembly layer is 3-5 mm.

[0012] Preferably, the gap filling layer can be replaced by AC-25 asphalt concrete hot-pressing construction instead of ATB-25 asphalt macadam.

[0013] According to a second aspect of the present invention, a construction device for a honeycomb-shaped prefabricated pavement structure includes a block paving device, wherein the block paving device comprises:

[0014] The vehicle has a chassis with tracks at the bottom, a block loading unit mounted on the chassis, a paving correction unit located between the block loading unit and the chassis and used to control the coordinate translation and deflection adjustment of the block loading unit, and a block laying unit located at the output end of the block loading unit.

[0015] The block laying unit includes a belt conveyor module connected to the rear output end of the block loading unit, a sliding component connected to the end of the belt conveyor module and close to the ground, reinforcing plates located on both sides of the belt conveyor module and the sliding component and fixedly connected to the block loading unit, and a first flow control wheel and a second flow control wheel located above the front and rear ends of the belt conveyor module and rotatably connected to the reinforcing plates; the distance between the flow control wheel and the upper surface of the belt conveyor module is the same as the height of the block; the upper surface of the sliding component is provided with pulleys.

[0016] Preferably, the block loading unit includes:

[0017] A loading box for bulk blocks, a block output assembly located at the bottom of the loading box, and a heavy-duty block assembly for bulk transfer of blocks to the block output assembly;

[0018] The block output assembly includes a support base block vertically fixed to the bottom of the loading box, an output friction wheel rotatably disposed on the upper surface of the support base block, a first sprocket coaxially fixedly connected to the output friction wheel, a second sprocket connected to the first sprocket via chain drive, and an output drive motor that drives the second sprocket to rotate; the block is placed on the upper surface of the support base block and its movement is controlled by the output friction wheel;

[0019] The heavy-duty block assembly includes heavy-duty drive screws vertically located at the four corners of the loading box, a heavy-duty drive motor coaxially and fixedly connected to the heavy-duty drive screws, a drop plate buffer spring sleeved on the bottom end of the heavy-duty drive screws, and a block bearing plate threadedly connected to the heavy-duty drive screws; the lower end of the heavy-duty drive screws is a smooth section without screw threads.

[0020] The block support plate is provided with a retraction hole, which is aligned with the support base block. Under the drive of the heavy-duty drive motor, the block support plate moves downward. When the block support plate moves to the position of the upper surface of the support base block, the support base block passes through the retraction hole, and the block above the block support plate contacts and completes the handover with the friction wheel output on the upper surface of the support base block. Then, the block support plate continues to move downward until it falls onto the drop plate buffer spring.

[0021] Preferably, the berth correction unit includes:

[0022] A bearing plate fixedly mounted on the upper surface of the vehicle frame, a sliding surface formed on the bearing plate, a sliding plate horizontally slidably mounted on the sliding surface, and a coordinate correction assembly for controlling the movement of the sliding plate along a horizontal two-dimensional plane; the loading box is rotatably connected to the top of the sliding plate;

[0023] The coordinate correction component includes two sets of orthogonal screw drive control components fixed to the bearing plate, which realize two-dimensional coordinate control of the sliding plate on the sliding surface;

[0024] An angle correction assembly for controlling the rotation angle of the loading box and the sliding plate includes a mounting plate hole at the bottom of the loading box, a cam gear fixed to the upper surface of the sliding plate and inserted into the mounting plate hole, a third correction drive gear located on the side of the mounting plate hole and meshing with the cam gear, a second correction drive gear coaxially and fixedly connected to the third correction drive gear, a first correction drive gear meshing with the second correction drive gear, and an angle correction motor that drives and controls the first correction drive gear through a bevel gear set.

[0025] According to a third aspect of the present invention, a construction method for a honeycomb-shaped prefabricated pavement structure includes the following steps:

[0026] S100: Construction of solidified soil cushion layer: The longitudinal overlap of the construction section is 300-400mm. The widened section at the intersection is manually paved. During paving, the material delivery vehicle operates at a uniform speed. A special person handles segregation and fills in new material. After paving, it is immediately compacted according to the process of "static pressure → light vibration → heavy vibration → static pressure finishing".

[0027] S200: Construction of curb base: Position and clean the installation surface according to the design, and use C20 concrete to cast the base as a whole. The gap between the base and the block is cast in place with C20 concrete. The base provides a foundation for the curb stone and can prevent the block from shifting laterally and the leveling layer sand from being lost.

[0028] S300: Leveling layer construction: Before laying, clean the solidified soil cushion layer and set the control line according to the 5mm loose laying thickness determined by the test section; use a loader to pile medium sand to the layout position and then gradually push it level, and then use a wooden scraper of the same width as the road surface to push forward and scrape it level, or use a spreader to spread it.

[0029] S400: Paving honeycomb composite blocks: After material acceptance, use a special robotic arm clamp to position according to the design baseline, and use a total station for three-level layout; follow the principle of "centerline first, then sides", start from the center of a single lane and pave longitudinally with staggered joints, and use a laser leveling instrument to monitor the accuracy when expanding laterally, controlling the gap to 3-5mm; on flat and curved road sections, arrange symmetrically radially along the centerline, and use staggered joint mortise and tenon structure to suppress horizontal displacement;

[0030] S500: Concrete sealing: The paving is completed using a block paving device, and then C20 fine stone concrete is poured in place to seal the edge, lock the curb base and the block base, form a closed system to strengthen the integrity, and prevent the blocks from loosening and the roadbed fill from being lost.

[0031] S600: Filling with filler: Before construction, clean the gaps between the blocks, spread stone chips, and then use a rubber-tired roller to vibrate and compact them so that the stone chips are evenly distributed in the gaps between the blocks. After vibration compaction, spray PC-2 emulsified asphalt tack coat. After the tack coat has penetrated, fill with ATB-25 asphalt macadam or AC-25 asphalt concrete and hot-press it. Then, use a 25t roller to statically compact and level it. The construction temperature must be above 5℃. Crack propagation is controlled by using an inverted triangular structure.

[0032] S700: Tack coat construction: PC-3 emulsified asphalt tack coat oil is sprayed between the joint filler and medium-grained asphalt concrete, and between medium-grained asphalt concrete and fine-grained asphalt concrete. The oil is sprayed evenly into a thin mist layer at a rate of 0.4L / m² using an intelligent sprayer.

[0033] S800: Asphalt Concrete Paving and Compaction: Before paving asphalt concrete, GPS is used to set up control steel stakes. Then, a level is used to calculate the loose paving elevation according to the elevation and loose paving coefficient, and guide control lines are set. During paving, the paver operates continuously at a uniform speed, and compaction follows closely behind paving. The process is divided into initial compaction, intermediate compaction, and final compaction, and is carried out at high temperature. The compaction qualification rate Km is controlled to be ≥97%, and the thickness qualification rate KL is controlled to be ≥93%.

[0034] Preferably, S400 further includes:

[0035] S401: The honeycomb blocks are assembled and positioned by the factory using steel molds customized according to the hexagonal 320 block module, and then coated with water-based release agent.

[0036] S402: C35 coarse-grained concrete is mixed using a forced mixer. After the slump is tested and found to be qualified, it is mechanically hoisted to the mold, mechanically vibrated and compacted, and the thickness of each layer is controlled and smoothed.

[0037] S403: After molding, cover with moisture-proof curing material, demold when demolding strength is reached, mark and transfer to standard curing environment for continued curing; test performance upon completion of curing period, and package qualified blocks with protective packaging.

[0038] S404: After the material has been cured to its design strength, it is transported by a special flatbed truck. The robotic arm clamp stacks the blocks into standard stacks on wooden pallets or block support plates and then loads them.

[0039] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0040] 1. This invention has been verified through actual engineering tests, which can significantly reduce project costs, significantly reduce the need for later maintenance, reduce construction waste and resource waste, significantly improve traffic efficiency, greatly enhance road flood control capabilities, and create a safe and comfortable travel environment.

[0041] 2. In the honeycomb prefabricated pavement structure of this invention, a rigid-flexible composite stress technology is adopted. Rigid precast blocks are arranged in a honeycomb grid to restrict the slippage of the flexible asphalt macadam layer and overcome the problem of smearing. The flexible asphalt wraps and fills the precast blocks, giving the structure flexible characteristics and avoiding shrinkage cracks in the rigid base layer. At the same time, the asphalt material filling the gaps in the honeycomb blocks stabilizes the macadam voids and allows water seepage in the pavement structure to be smoothly discharged, avoiding damage to the road structure caused by water stagnating between layers.

[0042] 3. In this invention, a honeycomb-shaped prefabricated pavement structure is constructed using crack and rutting control technology. The pavement stress is dispersed through block assembly, controlling cracks at the interface. The inverted triangular structure formed by the upper asphalt layer prevents crack propagation. Simultaneously, the crack-sealing material uses fluid, self-healing modified asphalt, combined with a compacted, sloping design to achieve self-repairing during high-temperature seasons. Furthermore, C30 prefabricated concrete blocks enhance the overall structural strength, and the combination of a 5-9 cm modified asphalt surface layer and a reasonable aggregate gradation effectively controls rutting issues under heavy loads. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of a honeycomb prefabricated road surface structure according to an embodiment of the present invention;

[0044] Figure 2 This is a detailed drawing of the curbstone installation of a honeycomb-shaped prefabricated pavement structure according to an embodiment of the present invention;

[0045] Figure 3 This is a schematic cross-sectional view of a honeycomb-shaped prefabricated pavement structure according to an embodiment of the present invention;

[0046] Figure 4 This is an elevation view of a honeycomb-shaped prefabricated road structure according to an embodiment of the present invention;

[0047] Figure 5 This is a cross-sectional view of a honeycomb-shaped prefabricated pavement structure according to an embodiment of the present invention;

[0048] Figure 6 This is a top view of a honeycomb-shaped prefabricated road structure according to an embodiment of the present invention;

[0049] Figure 7 This is a diagram of a block clamp used in the construction of a honeycomb prefabricated pavement structure according to an embodiment of the present invention;

[0050] Figure 8 This is a construction site diagram of a honeycomb prefabricated pavement structure according to an embodiment of the present invention;

[0051] Figure 9 This is a pre-loading diagram of a honeycomb-shaped prefabricated pavement structure according to an embodiment of the present invention;

[0052] Figure 10 This is a schematic diagram of the overall structure of a block paving device for constructing a honeycomb-shaped prefabricated road structure according to an embodiment of the present invention;

[0053] Figure 11 for Figure 10 A magnified view of a portion of the image;

[0054] Figure 12 This is a schematic diagram of the block output component structure of the block paving device according to an embodiment of the present invention;

[0055] Figure 13 for Figure 10 Enlarged view of part B in the image;

[0056] Figure 14 This is a schematic diagram of the block paving structure in a honeycomb prefabricated road structure according to an embodiment of the present invention;

[0057] Figure 15 This is a flowchart illustrating a construction method for a honeycomb-shaped prefabricated pavement structure according to an embodiment of the present invention.

[0058] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-frame, 100-track, 2-berth correction unit, 201-bearing plate, 202-sliding surface, 203-sliding plate, 210-coordinate correction assembly, 211-lateral correction assembly, 212-coordinate correction motor, 213-coordinate correction lead screw, 220-angle correction assembly, 221-cam gear, 222-third correction drive gear, 223-second correction drive gear, 224-first correction drive gear, 225-bevel gear set, 226-angle correction motor, 3-block loading unit 300-Loading box, 310-Heavy-load block assembly, 311-Heavy-load drive motor, 312-Heavy-load drive screw, 313-Plate drop buffer spring, 314-Block bearing plate, 3140-Plate ejection hole, 320-Block output assembly, 321-Support base block, 322-Output friction wheel, 323-First sprocket, 324-Chain, 325-Second sprocket, 326-Output drive motor, 4-Block laying unit, 400-Reinforcing plate, 410-With conveyor module, 420-Sliding assembly, 421-Pulley, 430-First flow control wheel, 440-Second flow control wheel. Detailed Implementation

[0059] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to 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 limiting the present invention.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0061] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0063] like Figures 1-14 As shown in the embodiment of the present invention, the honeycomb-shaped prefabricated road structure includes:

[0064] The layers laid from bottom to top are: solidified soil layer, medium sand leveling layer, honeycomb block assembly layer, joint filling layer, tack coat asphalt, stone chip layer, and tack coat asphalt and asphalt concrete.

[0065] The solidified soil layer consists of cement and crushed stone; the medium sand leveling layer consists of medium sand; the honeycomb block assembly layer is formed by multiple honeycomb blocks surrounding each other and paving; the gap filling layer fills the gaps between the blocks and its composition is ATB-25 asphalt crushed stone.

[0066] The block is a hexagonal pyramid shape with a narrowed upper part. The funnel-shaped gap between adjacent blocks is an opening. The angle of the opening is such that the asphalt mixture can be squeezed into the groove under the vibration and compaction of the rubber wheel. The gap at the bottom of the opening is not less than 2.5 times the size of the embedded crushed stone particles.

[0067] like Figures 4-6 As shown, in this embodiment of the invention, the block has an overall height of 21cm, a lower height of 10-12cm, an upper width of 22.04cm, a lower width of 32.04cm, and a lower diagonal of 35cm.

[0068] like Figures 1-3As shown in the embodiment of the present invention, the honeycomb-shaped prefabricated road structure includes:

[0069] The volumetric usage of the ATB-25 asphalt-aggregate is 0.35 m³ / m²; the volumetric usage of stone chips in the stone chip layer is 0.004 m³ / m². 3 / m 2 The tack coat asphalt component is PC-3 type emulsified asphalt tack coat oil, with a sprayed volume of 0.4 L / m² per square meter area.

[0070] like Figures 1-3 As shown in the embodiment of the present invention, the honeycomb prefabricated pavement structure includes: a solidified soil layer with a thickness of 300-400 mm; a medium sand leveling layer with a thickness of 4-6 mm; and a honeycomb block assembly layer with a block gap of 3-5 mm.

[0071] like Figure 3 As shown, in this embodiment of the invention, the gap filling layer can be replaced by AC-25 asphalt concrete hot-pressing construction instead of ATB-25 asphalt macadam.

[0072] In this embodiment of the invention, a rigid-flexible composite stress technology is adopted. Rigid precast blocks are arranged in a honeycomb grid to restrict the slippage of the flexible asphalt macadam layer and overcome the problem of smearing. The flexible asphalt wraps and fills the precast blocks, giving the structure flexible characteristics and avoiding shrinkage cracks in the rigid base layer. At the same time, the asphalt material filling the gaps in the honeycomb blocks stabilizes the macadam voids, allowing water seepage in the pavement structure to be smoothly discharged, avoiding damage to the road structure caused by water stagnant in the interlayer bonding.

[0073] Furthermore, in this embodiment of the invention, crack and rutting control technology is adopted. By dispersing pavement stress through block assembly, cracks are controlled at the interface, and the inverted triangular structure formed by the upper asphalt prevents crack propagation. At the same time, the crack filling material uses fluid self-healing modified asphalt, combined with the extrusion compacted slope design to achieve self-repair function in high-temperature seasons. In addition, C30 precast concrete blocks enhance the overall structural strength, and with a 5-9 cm modified asphalt surface layer and reasonable aggregate gradation, the rutting problem of the pavement under heavy loads is effectively controlled.

[0074] like Figure 8 and Figure 10 As shown, two embodiments of block laying devices are illustrated: a gripper type and a discharge type. The gripper type block laying device has the following clamps... Figure 7 As shown, the overall structure of the discharge block paving device is as follows: Figures 10-13 As shown.

[0075] like Figures 10-13 As shown in the embodiment of the present invention, the construction equipment for a honeycomb-shaped prefabricated pavement structure includes a block paving device, which comprises:

[0076] The vehicle frame 1 with tracks 100 at the bottom, the block loading unit 3 mounted on the vehicle frame 1, the paving correction unit 2 located between the block loading unit 3 and the vehicle frame 1 and used to control the coordinate translation and deflection adjustment of the block loading unit 3, and the block laying unit 4 located at the output end of the block loading unit 3.

[0077] The block laying unit 4 includes a belt conveyor module 410 connected to the rear output end of the block loading unit 3, a sliding component 420 connected to the end of the belt conveyor module 410 and close to the ground, a reinforcing guard plate 400 disposed on both sides of the belt conveyor module 410 and the sliding component 420 and fixedly connected to the block loading unit 3, and a first flow control wheel 430 and a second flow control wheel 440 located above the front and rear ends of the belt conveyor module 410 and rotatably connected to the reinforcing guard plate 400; the distance between the flow control wheel and the upper surface of the belt conveyor module 410 is the same as the block height; the upper surface of the sliding component 421 is provided with a pulley 421.

[0078] like Figures 10-13 As shown, in this embodiment of the invention, the block loading unit 3 includes:

[0079] A loading box 300 for bulk blocks, a block output assembly 320 located at the bottom of the loading box 300, and a heavy-duty block assembly 310 for bulk transfer of blocks to the block output assembly 320.

[0080] The block output assembly 320 includes a support base 321 vertically fixed to the bottom of the loading box 300, an output friction wheel 322 rotatably disposed on the upper surface of the support base 321, a first sprocket 323 coaxially fixedly connected to the output friction wheel 322, a second sprocket 325 driven by the first sprocket 323 through a chain 324, and an output drive motor 326 driving the second sprocket 325 to rotate; the block is placed on the upper surface of the support base 321 and its movement is controlled by the output friction wheel 322.

[0081] The heavy-duty block assembly 310 includes a heavy-duty drive screw 312 vertically disposed at the four corners of the loading box 300, a heavy-duty drive motor 311 coaxially and fixedly connected to the heavy-duty drive screw 312, a drop plate buffer spring 313 sleeved on the bottom end of the heavy-duty drive screw 312, and a block bearing plate 314 threadedly connected to the heavy-duty drive screw 312; the lower end of the heavy-duty drive screw 312 is a smooth section without screw threads.

[0082] The block support plate 314 has a plate retraction hole 3140, which is aligned with the support base block 321. Under the driving action of the heavy-duty drive motor 311, the block support plate 314 moves downward. When the block support plate 314 moves to the position of the upper surface of the support base block 321, the support base block 321 passes through the plate retraction hole 3140, and the block above the block support plate 314 contacts and completes the handover with the friction wheel 322 output on the upper surface of the support base block 321. Then, the block support plate 314 continues to move downward until it falls onto the drop plate buffer spring 313.

[0083] like Figures 10-13 As shown, in this embodiment of the invention, the berth correction unit 2 includes:

[0084] The frame 1 has a support plate 201 fixedly mounted on the upper surface, a sliding surface 202 formed on the support plate 201, a sliding plate 203 horizontally slidably mounted on the sliding surface 202, and a coordinate correction component 210 for controlling the movement of the sliding plate 203 along a horizontal two-dimensional plane; the loading box 300 is rotatably connected to the upper part of the sliding plate 203.

[0085] The coordinate correction component 210 includes two sets of orthogonal screw transmission control components fixed to the bearing plate 201, which realize two-dimensional coordinate control of the sliding plate 203 on the sliding surface 202.

[0086] An angle correction assembly 220 for controlling the rotation angle between the loading box 300 and the sliding plate 203 includes a mounting plate hole at the bottom of the loading box 300, a cam gear 221 fixed to the upper surface of the sliding plate 203 and inserted into the mounting plate hole, a third correction drive gear 222 located on the side of the mounting plate hole and meshing with the cam gear 221, a second correction drive gear 223 coaxially fixedly connected to the third correction drive gear 222, a first correction drive gear 224 meshing with the second correction drive gear 223, and an angle correction motor 226 that drives and controls the first correction drive gear 224 via a bevel gear set 225.

[0087] like Figure 15 As shown in the embodiment of the present invention, a construction method for a honeycomb-shaped prefabricated pavement structure includes the following steps:

[0088] S100: Construction of solidified soil cushion layer: The longitudinal overlap of the construction section is 300-400mm. The widened section at the intersection is manually paved. During paving, the material delivery vehicle operates at a uniform speed. A special person handles segregation and fills in new material. After paving, it is immediately compacted according to the process of "static pressure → light vibration → heavy vibration → static pressure finishing".

[0089] S200: Construction of curb base: Position and clean the installation surface according to the design, and use C20 concrete to cast the base as a whole. The gap between the base and the block is cast in place with C20 concrete. The base provides a foundation for the curb stone and can prevent the block from shifting laterally and the leveling layer sand from being lost.

[0090] S300: Leveling layer construction: Before laying, clean the solidified soil cushion layer and set the control line according to the 5mm loose laying thickness determined by the test section; use a loader to pile medium sand to the layout position and then gradually push it level, and then use a wooden scraper of the same width as the road surface to push forward and scrape it level, or use a spreader to spread it.

[0091] S400: Paving honeycomb composite blocks: After material acceptance, use a special robotic arm clamp to position according to the design baseline, and use a total station for three-level layout; follow the principle of "centerline first, then sides", start from the center of a single lane and pave longitudinally with staggered joints, and use a laser leveling instrument to monitor the accuracy when expanding laterally, controlling the gap to 3-5mm; on flat and curved road sections, arrange symmetrically radially along the centerline, and use staggered joint mortise and tenon structure to suppress horizontal displacement;

[0092] S500: Concrete sealing: The paving is completed using a block paving device, and then C20 fine stone concrete is poured in place to seal the edge, lock the curb base and the block base, form a closed system to strengthen the integrity, and prevent the blocks from loosening and the roadbed fill from being lost.

[0093] S600: Filling with filler: Before construction, clean the gaps between the blocks, spread stone chips, and then use a rubber-tired roller to vibrate and compact them so that the stone chips are evenly distributed in the gaps between the blocks. After vibration compaction, spray PC-2 emulsified asphalt tack coat. After the tack coat has penetrated, fill with ATB-25 asphalt macadam or AC-25 asphalt concrete and hot-press it. Then, use a 25t roller to statically compact and level it. The construction temperature must be above 5℃. Crack propagation is controlled by using an inverted triangular structure.

[0094] S700: Tack coat construction: PC-3 emulsified asphalt tack coat oil is sprayed between the joint filler and medium-grained asphalt concrete, and between medium-grained asphalt concrete and fine-grained asphalt concrete. The oil is sprayed evenly into a thin mist layer at a rate of 0.4L / m² using an intelligent sprayer.

[0095] S800: Asphalt Concrete Paving and Compaction: Before paving asphalt concrete, GPS is used to set up control steel stakes, and then a level is used to calculate the loose paving elevation according to the elevation and loose paving coefficient, and guide control lines are set; during paving, the paver operates continuously at a uniform speed, and compaction follows closely behind paving, in the process of initial compaction → intermediate compaction → final compaction, carried out at high temperature, controlling the compaction qualification rate Km≥97% and the thickness qualification rate KL≥93%;

[0096] In this embodiment of the invention, S400 further includes:

[0097] S401: The honeycomb blocks are assembled and positioned by the factory using steel molds customized according to the hexagonal 320 block module, and then coated with water-based release agent.

[0098] S402: C35 coarse-grained concrete is mixed using a forced mixer. After the slump is tested and found to be qualified, it is mechanically hoisted to the mold, mechanically vibrated and compacted, and the thickness of each layer is controlled and smoothed.

[0099] S403: After molding, cover with moisture-proof curing material, demold when demolding strength is reached, mark and transfer to standard curing environment for continued curing; test performance upon completion of curing period, and package qualified blocks with protective packaging.

[0100] S404: After the material has been cured to its design strength, it is transported by a special flatbed truck. The robotic arm clamp stacks the blocks into standard stacks on wooden pallets or block support plates and then loads them.

[0101] This invention has been verified through actual engineering tests. It can significantly reduce the cost of engineering projects, significantly reduce the need for later maintenance, reduce construction waste and resource waste, significantly improve traffic efficiency, greatly enhance the flood control capacity of roads, and create a safe and comfortable travel environment.

[0102] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A construction device for a honeycomb-shaped prefabricated pavement structure, characterized in that, The application relates to a block paving device which comprises a vehicle frame (1) provided with a track (100), a block loading unit (3) mounted on the vehicle frame (1), a paving deviation correcting unit (2) arranged between the block loading unit (3) and the vehicle frame (1) and used for controlling coordinate translation adjustment and angle adjustment of the block loading unit (3), and a block paving unit (4) arranged at the output end of the rear of the block loading unit (3). The block paving unit (4) comprises a belt conveying module (410) connected to the output end of the rear of the block loading unit (3), a sliding-out assembly (420) connected to the end of the belt conveying module (410) and close to the ground, a rib pulling guard plate (400) arranged on the two sides of the belt conveying module (410) and fixedly connected with the block loading unit (3), a first flow control wheel (430) and a second flow control wheel (440) arranged above the front and rear ends of the belt conveying module (410) and rotationally connected with the rib pulling guard plate (400); the distance between the flow control wheels and the upper surface of the belt conveying module (410) is the same as the height of the blocks; the upper surface of the sliding-out assembly (420) is provided with a pulley (421). The block loading unit (3) comprises a loading box (300) for loading blocks, a block output assembly (320) arranged at the bottom of the loading box (300), and a block reloading assembly (310) used for batch conveying of the blocks to the block output assembly (320). The block output assembly (320) comprises a support base block (321) fixed vertically to the bottom of the loading box (300), an output friction wheel (322) rotationally arranged on the upper surface of the support base block (321), a first sprocket (323) fixedly connected coaxially with the output friction wheel (322), a second sprocket (325) drivingly connected with the first sprocket (323) through a chain (324), and an output driving motor (326) for driving the second sprocket (325) to rotate; the blocks are placed on the upper surface of the support base block (321) and the movement of the blocks is controlled through the output friction wheel (322). The block reloading assembly (310) comprises a reloading driving lead screw (312) arranged vertically at the four corners of the loading box (300), a reloading driving motor (311) fixedly connected coaxially with the reloading driving lead screw (312), a falling plate buffer spring (313) sleeved at the bottom end of the reloading driving lead screw (312), and a block bearing plate (314) screwedly connected with the reloading driving lead screw (312); the lower end of the reloading driving lead screw (312) is a non-threaded rod section. ​ The block bearing plate (314) is provided with a plate withdrawing hole (3140) which is provided in position with the support base block (321); under the driving action of the heavy load driving motor (311), the block bearing plate (314) moves downwards, when the block bearing plate (314) moves to the upper surface position of the support base block (321), the support base block (321) passes through the plate withdrawing hole (3140), and the blocks above the block bearing plate (314) contact the upper surface output friction wheel (322) of the support base block (321) and complete the handover, then the block bearing plate (314) continues to move downwards until it falls on the plate falling buffer spring (313).

2. The construction apparatus of a cellular fabricated pavement structure according to claim 1, wherein The paving deviation correction unit (2) comprises: A bearing plate (201) fixed on the upper surface of the vehicle frame (1), a sliding surface (202) provided on the bearing plate (201), a sliding plate (203) horizontally slidingly installed on the sliding surface (202), and a coordinate deviation correction assembly (210) for controlling the sliding plate (203) to move along a horizontal two-dimensional plane; the loading box (300) is rotatably connected to the upper surface of the sliding plate (203); The coordinate deviation correction assembly (210) comprises two groups of orthogonal screw rod transmission control assemblies fixed on the bearing plate (201), which realize two-dimensional coordinate control of the sliding plate (203) on the sliding surface (202); A deviation angle correction assembly (220) for controlling the rotation angle of the loading box (300) and the sliding plate (203), which comprises a mounting disc hole provided on the bottom of the loading box (300), a convex disc gear (221) fixed on the upper surface of the sliding plate (203) and clamped into the mounting disc hole, a third deviation correction drive gear (222) provided on the side of the mounting disc hole and in meshing transmission with the convex disc gear (221), a second deviation correction drive gear (223) coaxially fixedly connected with the third deviation correction drive gear (222), a first deviation correction drive gear (224) in meshing transmission with the second deviation correction drive gear (223), and a deviation angle correction motor (226) driven and controlled by the first deviation correction drive gear (224) through a bevel gear set (225).

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