An assembled ventilation and heat dissipation pavement structure and a construction method thereof

Abstract

The application discloses an assembled ventilation and heat dissipation pavement structure and a construction method, relates to the technical field of pavement construction, and comprises the following: an assembled pavement module, which comprises a steel structure layer, a concrete layer and an asphalt pavement layer arranged from bottom to top; a base, which is arranged below the steel structure layer and in a roadbed layer, is horizontally limitedly connected with the lower end of the steel structure layer to limit horizontal displacement of the steel structure layer; a heat dissipation system, which comprises a driving assembly and a ventilation assembly; the ventilation assembly is arranged in the steel structure layer and is communicated with the roadbed layer; the driving assembly is arranged between the asphalt pavement layer and the ventilation assembly and is used for generating suction force acting on the ventilation assembly to drive the inside of the ventilation assembly to ventilate; and a heat insulation layer, which is arranged in the steel structure layer and above the ventilation assembly, is used for separating the concrete layer and the roadbed layer below. The pavement structure has high installation efficiency, effectively protects frozen soil, reduces the disease rate and prolongs the service life of the pavement.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, and in particular to a prefabricated ventilated and heat-dissipating road structure and construction method. Background Technology

[0002] my country has approximately 2.15 million square kilometers of permafrost, accounting for about one-fifth of its land area, ranking third in the world. Due to its unique geographical and climatic conditions, road construction in permafrost regions faces significant challenges. On the one hand, the harsh climate makes it difficult to guarantee construction efficiency and quality; on the other hand, permafrost is prone to thaw settlement and cracking under thermal disturbance, resulting in a high rate of roadbed defects that are difficult to control.

[0003] Existing prefabricated pavement technology, primarily based on precast concrete slabs, offers advantages such as high efficiency, energy saving, environmental friendliness, and economy. However, it presents several challenges in practical application. Specifically, the lack of effective connections between existing prefabricated pavement modules and between these modules and the subgrade leads to excessively large gaps, poor flatness, and easy loosening of modules, thus affecting the overall quality and stability of the pavement. Furthermore, the lack of effective ventilation and heat dissipation design allows heat absorbed by the asphalt pavement to easily transfer to the frozen soil subgrade, further exacerbating permafrost thawing and resulting in frequent pavement and subgrade defects.

[0004] Therefore, existing prefabricated pavement technology cannot meet the construction needs in the extreme environment of permafrost regions. There is an urgent need for a new type of pavement structure and construction method that can not only ensure rapid assembly and construction, improve construction efficiency and quality, but also have good ventilation and heat dissipation performance, effectively protect the permafrost, reduce the rate of damage, and extend the service life of the pavement. Summary of the Invention

[0005] This invention discloses a prefabricated ventilated and heat-dissipating pavement structure and construction method to solve the above-mentioned technical problems existing in prefabricated pavements in related technologies.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A prefabricated ventilated and heat-dissipating pavement structure includes: a prefabricated pavement module comprising a steel structure layer, a concrete layer, and an asphalt pavement layer arranged from bottom to top; a base disposed below the steel structure layer and located within the road base layer, the base being horizontally limited to the lower end of the steel structure layer to restrict horizontal displacement of the steel structure layer; a heat dissipation system including a drive component and a ventilation component, the ventilation component being disposed within the steel structure layer and communicating with the road base layer, the drive component being disposed between the asphalt pavement layer and the ventilation component, and the drive component being used to generate suction force acting within the ventilation component to drive air exchange within the ventilation component; and a heat insulation layer disposed within the steel structure layer and located above the ventilation component, used to separate the concrete layer and the underlying road base layer.

[0008] Optionally, the steel structure layer includes a bottom plate, a top plate, a first side connecting plate, and a second side connecting plate. The bottom plate and the top plate are arranged facing each other in the vertical direction. The first side connecting plate and the second side connecting plate are respectively located at both ends of the bottom plate and the top plate, and the bottom plate, the top plate, the first side connecting plate, and the second side connecting plate surround to form a rectangular frame.

[0009] Optionally, the outer surface of the first side connecting plate is provided with a connecting groove, and the outer surface of the adjacent second side connecting plate is provided with a connecting protrusion. The adjacent first side connecting plate and the second side connecting plate are limited and engaged with the connecting protrusion through the connecting groove. The first side connecting plate and the connecting protrusion are both provided with a vertically connected connecting slot, and a connecting pin is inserted into the connecting slot.

[0010] Optionally, the ventilation assembly includes multiple ventilation pipes arranged axially, and transverse partitions are spaced apart along the length of the ventilation pipes within the steel structure layer. The transverse partitions have multiple fixing holes for the ventilation pipes to pass through. Several first ventilation holes are provided on the lower semi-circular surface of the ventilation pipes, and several second ventilation holes are also provided through the bottom plate. The ventilation pipes are connected to the roadbed through the first ventilation holes and the second ventilation holes.

[0011] Optionally, the drive assembly includes a bracket, a rotating rod, an air-facing blade, a first bevel gear, a second bevel gear, a transmission rod, a third bevel gear, a fourth bevel gear, a connecting rod, and exhaust blades; wherein, the bracket is installed on one side of the asphalt pavement layer, the rotating rod is horizontally rotatably mounted on the bracket, and multiple air-facing blades are circumferentially arranged at the end of the rotating rod facing the vehicle, the first bevel gear is coaxially mounted at the end of the rotating rod away from the air-facing blades; the transmission rod is vertically rotatably mounted on the bracket, the second bevel gear is coaxially mounted at the top of the transmission rod and meshes with the first bevel gear, the third bevel gear is coaxially mounted at the bottom end of the transmission rod; the connecting rod is coaxially and rotatably mounted on one side of the ventilation pipe opening, one end of the connecting rod extends into the ventilation pipe, and multiple exhaust blades are circumferentially arranged at the end of the connecting rod facing into the ventilation pipe, the fourth bevel gear is coaxially mounted at the end of the connecting rod away from the exhaust blades, and the fourth bevel gear meshes with the third bevel gear.

[0012] Optionally, each of the ventilation pipes is connected to an upper guide pipe and a lower guide pipe. The upper guide pipe is arc-shaped and extends upward at an angle after avoiding the connecting rod, and the lower guide pipe is arc-shaped and extends downward at an angle after avoiding the connecting rod.

[0013] Optionally, a limiting block is provided at the lower end of the steel structure layer, and a limiting groove is provided on the base for the limiting block to be vertically embedded.

[0014] Optionally, guardrails are provided on both sides of the asphalt pavement layer, and the drive assembly is located on the outside of the guardrails away from the asphalt pavement layer.

[0015] Optionally, an exhaust pipe is horizontally connected to the turning section of the upper guide pipe. A barrier net is provided at the opening of the exhaust pipe away from the turning section to prevent external particulate impurities from entering the exhaust pipe. A flared water collection hopper is embedded in the upper opening of the upper guide pipe. The outer periphery of the flared water collection hopper has a protruding edge that fits against the edge of the upper opening of the upper guide pipe. A water inlet pipe is connected to the lower end of the flared water collection hopper. The water inlet pipe extends through the upper guide pipe and extends directly above the barrier net. A solar photovoltaic panel is provided on the guardrail. An electric heating wire is covered inside the flared water collection hopper. The solar photovoltaic panel is electrically connected to the electric heating wire.

[0016] This application also protects a construction method for a prefabricated ventilated and heat-dissipating pavement structure, used to manufacture the prefabricated ventilated and heat-dissipating pavement structure described in any of the above embodiments, comprising the following steps:

[0017] After the roadbed construction is completed, according to the design drawings, the base installation pit is excavated at the base coordinate position, the prefabricated base is hoisted into place, and the area around the base is backfilled and compacted.

[0018] After the prefabricated pavement modules are processed in the factory, they are transported to the construction site and then hoisted and laid on the roadbed one by one along the longitudinal direction of the route. The prefabricated pavement modules are placed horizontally in sequence.

[0019] After the prefabricated road modules are laid, concrete is poured at the joints. Once the concrete strength meets the design requirements, the road layer at the joints is laid.

[0020] Finally, install the cooling system, and after assembly, test the ventilation system.

[0021] The technical solution adopted in this invention can achieve the following beneficial effects:

[0022] 1. Prefabricated ventilated and heat-dissipating pavement structures, through the rational combination of steel structure layers, concrete layers, and asphalt pavement layers, as well as innovative designs for the base, heat dissipation system, and insulation layer, fully overcome the limitations of existing technologies in permafrost regions. Through effective ventilation and heat dissipation design, the pavement can not only be constructed quickly and efficiently, but also significantly reduce the rate of subgrade damage in permafrost and extend the service life of the pavement, thus meeting the needs of road engineering in extreme environments. It has broad application prospects and significant social benefits.

[0023] 2. The exhaust duct design allows for faster and less resistance-dependent airflow. Simultaneously, the barrier net effectively prevents excessive external particulate matter from entering the exhaust duct, thus reducing the likelihood of blockage. More importantly, since this road structure is located in a permafrost region, the barrier net surface is prone to icing during rain and snow, potentially causing blockage. Therefore, the installed heating wires, powered by solar photovoltaic panels, continuously heat the inside of the flared water collection hopper. This prevents the water inside the flared water collection hopper from freezing during rain and snow, instead allowing warm or hot water to flow through the water inlet pipe to the barrier net. The continuous flow of warm or hot water to the barrier net surface not only effectively prevents icing but also removes dust particles adhering to the surface, thus maintaining both the barrier's blocking and ventilation performance. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the road surface structure according to an embodiment of this application. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the road surface structure according to an embodiment of this application. Figure 2 ;

[0027] Figure 3 This is a partial schematic diagram of the road surface structure according to an embodiment of this application;

[0028] Figure 4 This is an exploded schematic diagram illustrating the steel structure layer according to an embodiment of this application;

[0029] Figure 5 yes Figure 2 Enlarged view of part A in the image;

[0030] Figure 6 This is a partial schematic diagram illustrating the interior of the steel structure layer according to an embodiment of this application;

[0031] Figure 7 This is a partial schematic diagram illustrating the area beneath the steel structure layer, according to an embodiment of this application.

[0032] Figure 8 This is a partial schematic diagram illustrating the driving component according to an embodiment of this application;

[0033] Figure 9 This is a partial schematic diagram illustrating the upper guide tube according to an embodiment of this application.

[0034] In the picture:

[0035] 100. Prefabricated pavement module; 110. Steel structure layer; 111. Base plate; 1111. Second vent; 112. Top plate; 113. First side connecting plate; 1131. Connecting groove; 114. Second side connecting plate; 1141. Connecting protrusion; 115. Connecting slot; 116. Connecting pin; 117. Limiting block; 120. Concrete layer; 130. Asphalt pavement layer; 131. Guardrail; 200. Base; 210. Limiting groove; 300. Subgrade; 400. Heat dissipation system; 410. Drive assembly; 411. Bracket; 412. Rotary... 413. Moving rod; 414. Windward blade; 415. First bevel gear; 416. Second bevel gear; 417. Transmission rod; 418. Third bevel gear; 419. Fourth bevel gear; 410. Connecting rod; 4191. Exhaust blade; 420. Ventilation assembly; 421. Ventilation duct; 4211. First vent; 500. Insulation layer; 600. Horizontal partition; 700. Upper guide pipe; 710. Exhaust duct; 720. Barrier net; 730. Flared water collection hopper; 731. Heating wire; 740. Water inlet pipe; 800. Lower guide pipe; 900. Solar photovoltaic panel. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0037] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] The following is in conjunction with the appendix Figures 1 to 9 This application provides a detailed description of a prefabricated ventilated and heat-dissipating pavement structure and construction method through specific embodiments and application scenarios.

[0039] A prefabricated ventilated and heat-dissipating road surface structure, referring to Figure 1 , Figure 2 as well as Figure 3 The system includes a prefabricated pavement module 100, a base 200, a heat dissipation system 400, and a heat insulation layer 500. The prefabricated pavement module 100 includes a steel structure layer 110, a concrete layer 120, and an asphalt pavement layer 130 laid from bottom to top. For example, the base 200 is located below the steel structure layer 110 and within the road base layer 300. The base 200 is horizontally limited to the lower end of the steel structure layer 110 to restrict the horizontal displacement of the steel structure layer 110.

[0040] Meanwhile, the heat dissipation system 400 includes a drive component 410 and a ventilation component 420. The ventilation component 420 is located inside the steel structure layer 110 and is connected to the road base layer 300. The drive component 410 is located between the asphalt pavement layer 130 and the ventilation component 420. The drive component 410 is used to generate suction force acting on the ventilation component 420 to drive the ventilation component 420 to exchange air inside.

[0041] Furthermore, the insulation layer 500 is disposed within the steel structure layer 110 and above the ventilation assembly 420 to separate the concrete layer 120 and the underlying roadbed 300. For example, the insulation layer 500 is made of any one of foamed concrete, polystyrene foam board, polyurethane foam board, expanded perlite, and calcium silicate board.

[0042] Based on this, the prefabricated pavement module 100 consists of a steel structure layer 110, a concrete layer 120, and an asphalt pavement layer 130. The steel structure layer 110 provides the necessary strength and rigidity to ensure the overall stability of the pavement, while the concrete layer 120 and the asphalt pavement layer 130 respectively bear the load-bearing and traffic functions of the pavement. This structure not only meets the requirements of road engineering in permafrost regions but also enables rapid and convenient assembly construction through modular design, greatly improving construction efficiency and quality.

[0043] Secondly, the base 200 is located below the steel structure layer 110 and within the road base layer 300, and its horizontal displacement is restricted by a horizontal limiting connection. This design effectively prevents horizontal displacement of the pavement modules due to factors such as thermal expansion and contraction during long-term use, avoiding problems such as excessive gaps between modules, uneven pavement, and loose modules, thereby ensuring the long-term stability and service life of the pavement.

[0044] Most importantly, this invention designs a highly efficient heat dissipation system 400, including a drive component 410 and a ventilation component 420. The ventilation component 420 is located within the steel structure layer 110 and connected to the roadbed 300. The drive component 410 generates suction to drive air exchange within the ventilation component 420. This heat dissipation system 400 can effectively remove heat absorbed by the road surface through the ventilation component 420, preventing heat transfer from the road surface to the frozen soil subgrade, thereby avoiding permafrost thawing, subgrade settlement, and other problems. The design of the ventilation component 420 allows air to circulate within the road surface, improving heat dissipation efficiency and reducing the residence time of heat in the subgrade, fundamentally protecting the frozen soil from the effects of thermal disturbance.

[0045] Finally, the insulation layer 500 is located within the steel structure layer 110 and above the ventilation component 420. The function of the insulation layer 500 is to effectively isolate the concrete layer 120 and the underlying roadbed 300 from the heat source above, reducing heat transfer. Through the effective barrier effect of the insulation layer 500, the impact of heat on the frozen soil is further reduced, ensuring the stability of the roadbed and the integrity of the frozen soil.

[0046] In summary, the prefabricated ventilated and heat-dissipating pavement structure, through the rational combination of a steel structure layer 110, a concrete layer 120, and an asphalt pavement layer 130, as well as the innovative design of the base 200, heat dissipation system 400, and insulation layer 500, effectively overcomes the limitations of existing technologies in permafrost regions. Through effective ventilation and heat dissipation design, the pavement can not only be constructed quickly and efficiently, but also significantly reduce the rate of subgrade damage in permafrost and extend the service life of the pavement, thus meeting the needs of road engineering in extreme environments. It has broad application prospects and significant social benefits.

[0047] In some implementations, such as Figure 3 , Figure 4 As shown, the steel structure layer 110 includes a bottom plate 111, a top plate 112, a first side connecting plate 113, and a second side connecting plate 114. The bottom plate 111 and the top plate 112 are arranged facing each other in the vertical direction. The first side connecting plate 113 and the second side connecting plate 114 are respectively located at both ends of the bottom plate 111 and the top plate 112, and the bottom plate 111, the top plate 112, the first side connecting plate 113, and the second side connecting plate 114 surround each other to form a rectangular frame.

[0048] For example, in combination Figure 5 The outer surface of the first side connecting plate 113 is provided with a connecting groove 1131, and the outer surface of the adjacent second side connecting plate 114 is provided with a connecting protrusion 1141. The adjacent first side connecting plate 113 and second side connecting plate 114 are limited and engaged by the connecting groove 1131 and the connecting protrusion 1141. Furthermore, the first side connecting plate 113 and the connecting protrusion 1141 are both vertically connected with a connecting slot 115, and a connecting pin 116 is inserted into the connecting slot 115.

[0049] This configuration, through the connection groove 1131 and the connection protrusion 1141, improves the fit between adjacent steel structure layers 110. Simultaneously, the insertion of the connecting pin 116 makes the connection between adjacent steel structure layers 110 more stable, enhancing the overall stability of the steel structure layers 110.

[0050] In some implementations, combined with Figure 3 , Figure 6 as well as Figure 7 The ventilation assembly 420 includes multiple ventilation pipes 421 arranged axially. A transverse partition 600 is spaced along the length of the ventilation pipes 421 within the steel structure layer 110. Multiple fixing holes are provided on the transverse partition 600 for the ventilation pipes 421 to pass through. For example, several first ventilation holes 4211 are provided on the lower semi-circular surface of the ventilation pipes 421, and multiple second ventilation holes 1111 are also provided through the base plate 111. The ventilation pipes 421 are connected to the roadbed 300 through the first ventilation holes 4211 and the second ventilation holes 1111.

[0051] With this configuration, when the outside temperature is high, the insulation material effectively blocks the heat absorbed by the asphalt pavement layer 130, while the ventilation pipe 421 keeps the air circulating inside the steel structure layer 110, controlling the temperature rise. When the outside temperature is low, the heat in the base course 300 enters the ventilation pipe 421 through the first vent 4211 and the second vent 1111, and is promptly discharged by the ventilation pipe 421, thereby reducing the temperature of the base course 300 and preventing the frozen soil layer below the base course 300 from melting due to temperature changes. In summary, the above configuration can prevent the heat from the asphalt pavement layer 130 from being conducted downwards to the base course 300 in summer, and transfer the heat inside the base course 300 to the outside through the ventilation pipe 421 in winter.

[0052] In some implementations, combined with Figure 1 , Figure 8 as well as Figure 9 The drive assembly 410 includes a bracket 411, a rotating rod 412, a wind-facing blade 413, a first bevel gear 414, a second bevel gear 415, a transmission rod 416, a third bevel gear 417, a fourth bevel gear 418, a connecting rod 419, and an exhaust blade 4191. The bracket 411 is installed on one side of the asphalt pavement layer 130. The rotating rod 412 is horizontally rotatably mounted on the bracket 411. Multiple wind-facing blades 413 are circumferentially arranged at the end of the rotating rod 412 facing the vehicle. The first bevel gear 414 is coaxially located at the end of the rotating rod 412 away from the wind-facing blades 413. For example, the transmission rod 416 is vertically... The transmission rod 416 is rotatably mounted on the support 411. The second bevel gear 415 is coaxially mounted on the top of the transmission rod 416 and meshes with the first bevel gear 414. The third bevel gear 417 is coaxially mounted on the bottom of the transmission rod 416. For example, the connecting rod 419 is coaxially mounted and rotatably mounted on one side of the opening of the ventilation pipe 421. One end of the connecting rod 419 extends into the ventilation pipe 421. Multiple exhaust blades 4191 are circumferentially arranged on the end of the connecting rod 419 facing into the ventilation pipe 421. The fourth bevel gear 418 is coaxially mounted on the end of the connecting rod 419 away from the exhaust blades 4191, and the fourth bevel gear 418 meshes with the third bevel gear 417.

[0053] For example, the bracket 411 is provided with two sets of rolling bearings. One set of rolling bearings is interference-fitted with the rotating rod 412, and the other set of rolling bearings is interference-fitted with the transmission rod 416, thereby allowing the rotating rod 412 and the transmission rod 416 to be stably rotatably connected to the bracket 411. Furthermore, a mounting plate is provided outside the opening of the ventilation pipe 421, and a set of rolling bearings is also provided above the mounting plate. The connecting rod 419 passes through the inner ring of the rolling bearing and is interference-fitted with the rolling bearing.

[0054] With this configuration, when a car drives over the asphalt pavement layer 130, the car will cause airflow fluctuations, creating wind. This wind will act on the windward blades 413, causing multiple windward blades 413 to rotate. At this time, the rotating rod 412 will rotate along with the rotation of the windward blades 413, driving the first bevel gear 414 to rotate. The first bevel gear 414 will then drive the second bevel gear 415 to rotate, which in turn drives the transmission rod 416 to rotate. After the transmission rod 416 rotates, the third bevel gear 417 will also rotate synchronously, driving the fourth bevel gear 418 to rotate. After the fourth bevel gear 418 rotates, it will drive the connecting rod 419 to rotate, finally driving the exhaust blades 4191 to rotate, creating suction, which draws the air in the ventilation pipe 421 to the outside.

[0055] In some implementations, combined with Figure 8 as well as Figure 9 Each ventilation duct 421 is connected to an upper guide pipe 700 and a lower guide pipe 800 at its opening. The upper guide pipe 700 is arc-shaped and extends upward at an angle after avoiding the connecting rod 419, while the lower guide pipe 800 is arc-shaped and extends downward at an angle after avoiding the connecting rod 419. With this configuration, air inside the ventilation duct 421 can be guided to exit from the upper and lower sides of the connecting rod 419 through the upper guide pipe 700 and the lower guide pipe 800, effectively solving the problem of poor axial air discharge from the ventilation duct 421 due to the presence of the connecting rod 419.

[0056] In some implementations, such as Figure 2 As shown, a limiting block 117 is provided at the lower end of the steel structure layer 110, and a limiting groove 210 is provided on the base 200 for the limiting block 117 to be vertically inserted. In this way, through the insertion and cooperation of the limiting block 117 and the limiting groove 210, the steel structure layer 110 and the base 200 can be stably connected, realizing the horizontal limiting of the overall pavement structure, avoiding the slippage of the pavement under extremely unfavorable working conditions, and improving the overall stability of the pavement structure.

[0057] In some implementations, combined with Figure 1 , Figure 8 as well as Figure 9 Guardrails 131 are provided on both sides of the asphalt pavement layer 130, and the drive assembly 410 is located on the outside of the guardrails 131 away from the asphalt pavement layer 130.

[0058] In some implementations, such as Figure 8 as well as Figure 9As shown, an exhaust pipe 710 is horizontally connected to the turning section of the upper guide pipe 700. A baffle net 720 is provided at the opening of the exhaust pipe 710 away from the turning section to prevent external particulate impurities from entering the exhaust pipe 710. A flared water collection hopper 730 is embedded in the upper opening of the upper guide pipe 700. The outer periphery of the flared water collection hopper 730 has a protruding edge that fits against the edge of the upper opening of the upper guide pipe 700. A water inlet pipe 740 is connected to the lower end of the flared water collection hopper 730. The water inlet pipe 740 extends from the upper guide pipe 700 to directly above the baffle net 720. For example, a solar photovoltaic panel 900 is provided on the guardrail 131. An electric heating wire 731 is covered inside the flared water collection hopper 730. The solar photovoltaic panel 900 and the electric heating wire 731 are electrically connected. Furthermore, the solar photovoltaic panel 900 is an energy-storing type, which can store electrical energy on sunny days and use it to heat the heating wire 731 during rainy or snowy weather.

[0059] With this configuration, the exhaust duct 710 allows air in the ventilation duct 421 to be expelled more quickly and is less susceptible to resistance. Simultaneously, the baffle 720 effectively prevents excessive external particulate matter from entering the exhaust duct 710, thereby significantly reducing the likelihood of blockage. More importantly, since the road structure is located in a permafrost region, the surface of the barrier net 720 is prone to freezing during rain and snow, which could lead to blockage. Therefore, the installed heating wire 731 can continuously heat the inside of the flared water collection hopper 730 under the action of the solar photovoltaic panel 900, so that the water inside the flared water collection hopper 730 is not easily frozen into ice during rain and snow. Instead, it forms warm or hot water that flows to the barrier net 720 through the water pipe 740. After the warm or hot water is continuously discharged to the surface of the barrier net 720 through the water pipe 740, it can not only effectively prevent the surface of the barrier net 720 from freezing, but also remove dust particles attached to the surface of the barrier net 720, thereby effectively maintaining the blocking performance and ventilation performance of the barrier net 720.

[0060] This application also discloses a construction method for a prefabricated ventilated and heat-dissipating pavement structure, used to manufacture the prefabricated ventilated and heat-dissipating pavement structure in any of the above embodiments, comprising the following steps:

[0061] After the roadbed construction is completed, according to the design drawings, the installation pit for base 200 is excavated at the coordinate position of base 200, the prefabricated base 200 is hoisted into place, and the area around base 200 is backfilled and compacted.

[0062] After the prefabricated pavement modules 100 are processed in the factory, they are transported to the construction site and then hoisted and laid on the roadbed one by one along the longitudinal direction of the route. The prefabricated pavement modules 100 are placed horizontally in sequence.

[0063] After the prefabricated road module 100 is laid, concrete is poured at the splice joint. After the concrete strength meets the design requirements, the road layer at the splice joint is laid.

[0064] Finally, install the 400 cooling system, and after assembly, test the ventilation system.

[0065] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0066] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0067] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A prefabricated ventilated and heat-dissipating road surface structure, characterized in that, include: The prefabricated road module (100) includes a steel structure layer (110), a concrete layer (120), and an asphalt pavement layer (130) arranged from bottom to top. A base (200) is provided below the steel structure layer (110) and located within the roadbed (300). The base (200) is horizontally limited to the lower end of the steel structure layer (110) to restrict the horizontal displacement of the steel structure layer (110). The heat dissipation system (400) includes a drive assembly (410) and a ventilation assembly (420). The ventilation assembly (420) is disposed within the steel structure layer (110) and connected to the road base layer (300). The drive assembly (410) is disposed between the asphalt pavement layer (130) and the ventilation assembly (420). The drive assembly (410) is used to generate suction force acting on the ventilation assembly (420) to drive the ventilation assembly (420) to exchange air inside. A heat insulation layer (500) is disposed within the steel structure layer (110) and above the ventilation assembly (420) to separate the concrete layer (120) and the underlying road base layer (300); The steel structure layer (110) includes a bottom plate (111), a top plate (112), a first side connecting plate (113), and a second side connecting plate (114). The bottom plate (111) and the top plate (112) are arranged facing each other in the vertical direction. The first side connecting plate (113) and the second side connecting plate (114) are respectively located at both ends of the bottom plate (111) and the top plate (112). The bottom plate (111), the top plate (112), the first side connecting plate (113), and the second side connecting plate (114) surround each other to form a rectangular frame. The outer surface of the first side connecting plate (113) is provided with a connecting groove (1131), and the outer surface of the adjacent second side connecting plate (114) is provided with a connecting protrusion (1141). The adjacent first side connecting plate (113) and second side connecting plate (114) are limited and engaged by the connecting groove (1131) and the connecting protrusion (1141). The first side connecting plate (113) and the connecting protrusion (1141) are both vertically connected with a connecting slot (115), and a connecting pin (116) is inserted into the connecting slot (115). The ventilation assembly (420) includes multiple ventilation pipes (421) arranged axially. Horizontal partitions (600) are spaced apart in the steel structure layer (110) along the length of the ventilation pipes (421). Multiple fixing holes are provided on the horizontal partitions (600) for the ventilation pipes (421) to pass through. The ventilation pipe (421) has several first ventilation holes (4211) on its lower semi-circular surface, and the base plate (111) also has several second ventilation holes (1111) through it. The ventilation pipe (421) is connected to the road base layer (300) through the first ventilation holes (4211) and the second ventilation holes (1111).

2. The prefabricated ventilated and heat-dissipating road surface structure according to claim 1, characterized in that, The drive assembly (410) includes a bracket (411), a rotating rod (412), a windward blade (413), a first bevel gear (414), a second bevel gear (415), a transmission rod (416), a third bevel gear (417), a fourth bevel gear (418), a connecting rod (419), and an exhaust blade (4191); wherein, the bracket (411) is installed on one side of the asphalt pavement layer (130), the rotating rod (412) is horizontally rotatably mounted on the bracket (411), and multiple windward blades (413) are arranged circumferentially at the end of the rotating rod (412) facing the vehicle travel direction, and the first bevel gear (414) is coaxially mounted at the end of the rotating rod (412) away from the windward blades (413); The transmission rod (416) is vertically rotatably mounted on the bracket (411), the second bevel gear (415) is coaxially mounted on the top of the transmission rod (416) and meshes with the first bevel gear (414), and the third bevel gear (417) is coaxially mounted on the bottom end of the transmission rod (416). The connecting rod (419) is coaxially and rotatably disposed on one side of the opening of the ventilation pipe (421). One end of the connecting rod (419) extends into the ventilation pipe (421), and multiple exhaust blades (4191) are circumferentially arranged at the end of the connecting rod (419) facing into the ventilation pipe (421). The fourth bevel gear (418) is coaxially disposed at the end of the connecting rod (419) away from the exhaust blades (4191), and the fourth bevel gear (418) meshes with the third bevel gear (417).

3. The prefabricated ventilated and heat-dissipating road surface structure according to claim 2, characterized in that, The ventilation pipe (421) is connected to an upper guide pipe (700) and a lower guide pipe (800) at its opening. The upper guide pipe (700) is arc-shaped and extends upward at an angle after avoiding the connecting rod (419). The lower guide pipe (800) is arc-shaped and extends downward at an angle after avoiding the connecting rod (419).

4. A prefabricated ventilated and heat-dissipating road surface structure according to any one of claims 1-3, characterized in that, The lower end of the steel structure layer (110) is provided with a limiting block (117), and the base (200) is provided with a limiting groove (210) for the limiting block (117) to be vertically embedded.

5. The prefabricated ventilated and heat-dissipating road surface structure according to claim 3, characterized in that, Guardrails (131) are provided on both sides of the asphalt pavement layer (130), and the drive assembly (410) is located on the outside of the guardrails (131) away from the asphalt pavement layer (130).

6. The prefabricated ventilated and heat-dissipating road surface structure according to claim 5, characterized in that, An exhaust pipe (710) is horizontally connected to the turning section of the upper guide pipe (700). A baffle net (720) is provided at the opening of the exhaust pipe (710) away from the turning section to prevent external particulate impurities from entering the exhaust pipe (710). A flared water collection bucket (730) is embedded in the upper opening of the upper guide pipe (700). A convex edge is provided on the outer periphery of the flared water collection bucket (730), and the convex edge is in contact with the edge of the upper opening of the upper guide pipe (700). A water inlet pipe (740) is connected to the lower end of the flared water collection bucket (730). The water inlet pipe (740) extends from the upper guide pipe (700) to directly above the baffle net (720). The guardrail (131) is equipped with a solar photovoltaic panel (900), and the flared water collection hopper (730) is covered with an electric heating wire (731). The solar photovoltaic panel (900) is electrically connected to the electric heating wire (731).

7. A construction method for a prefabricated ventilated and heat-dissipating pavement structure, used to manufacture the prefabricated ventilated and heat-dissipating pavement structure according to any one of claims 1-6, characterized in that, Includes the following steps: After the roadbed construction is completed, according to the design drawings, the base (200) installation pit is excavated at the coordinate position of the base (200), the prefabricated base (200) is hoisted into place, and the area around the base (200) is backfilled and compacted. After the prefabricated pavement modules (100) are processed in the factory, they are transported to the construction site and laid on the roadbed one by one along the longitudinal direction of the route. The prefabricated pavement modules (100) are placed horizontally in sequence. After the prefabricated road surface module (100) is laid, concrete is poured at the splice joint. After the concrete strength meets the design requirements, the road surface layer at the splice joint is laid. Finally, install the cooling system (400), and after assembly, test the ventilation system.

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