Fabricated ventilation and heat dissipation pavement structure and construction method

Abstract

The invention discloses an assembly type ventilation and heat dissipation pavement structure and a construction method, and relates to the technical field of pavement construction, the structure comprises: an assembly type pavement module comprising a steel structure layer, a concrete layer and an asphalt pavement layer arranged from bottom to top; the base is arranged below the steel structure layer and located in the roadbed layer, and the base is in horizontal limiting connection with the lower end of the steel structure layer so as to limit horizontal displacement of the steel structure layer; the heat dissipation system comprises a driving assembly and a ventilation assembly, the ventilation assembly is arranged in the steel structure layer and communicates with the roadbed layer, the driving assembly is arranged between the asphalt pavement layer and the ventilation assembly, and the driving assembly is used for generating suction acting on the interior of the ventilation assembly so as to drive the interior of the ventilation assembly to conduct ventilation; and the heat insulation layer is arranged in the steel structure layer, located above the ventilation assembly and used for separating the concrete layer from the roadbed layer below. The pavement structure is high in installation efficiency, frozen soil is effectively protected, the disease rate is reduced, and the service life of the pavement is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of pavement construction, and in particular to an assembled ventilation and heat dissipation pavement structure and a construction method. Background Art

[0002] The permafrost area in my country is about 2.15 million square kilometers, accounting for about one-fifth of the country's land area, ranking third in the world. Due to its special geographical and climatic conditions, road construction in long-term frozen areas faces great challenges. On the one hand, the harsh climate environment makes it difficult to ensure construction efficiency and quality; on the other hand, because frozen soil is prone to thawing, cracking and other phenomena under thermal disturbance, the roadbed disease rate is high and difficult to control.

[0003] Existing prefabricated pavement technology is mainly based on prefabricated concrete panels. Although it has the advantages of high efficiency, energy saving, environmental protection and economy, there are some problems in practical application. Specifically, there is a lack of effective connection between existing prefabricated pavement modules and between pavement modules and roadbeds, resulting in large splicing gaps, poor flatness, and easy loosening of pavement modules, which in turn affects the overall quality and stability of the pavement. At the same time, due to the lack of effective ventilation and heat dissipation design, the heat absorbed by the black pavement is easily transferred to the frozen soil roadbed, further exacerbating the melting of frozen soil, resulting in frequent pavement and roadbed diseases.

[0004] Therefore, the existing prefabricated pavement technology cannot meet the construction needs in the extreme environment of permafrost areas. A new type of pavement structure and construction method is urgently needed, which can not only ensure rapid assembly and construction, improve construction efficiency and quality, but also have good ventilation and heat dissipation performance, effectively protect frozen soil, reduce the disease rate, and extend the service life of the pavement. Summary of the invention

[0005] The invention discloses an assembled ventilation and heat dissipation pavement structure and a construction method to solve the above technical problems existing in the assembled pavement in the related art.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions: An assembled ventilation and heat dissipation pavement structure comprises: an assembled pavement module, comprising a steel structure layer, a concrete layer and an asphalt pavement layer arranged from bottom to top; a base, arranged below the steel structure layer and located in a road base layer, the base is horizontally limitedly connected to the lower end of the steel structure layer to limit the horizontal displacement of the steel structure layer; a heat dissipation system, comprising a drive component and a ventilation component, the ventilation component is arranged in the steel structure layer and communicated with the road base layer, the drive component is arranged between the asphalt pavement layer and the ventilation component, and the drive component is used to generate suction acting on the ventilation component to drive the interior of the ventilation component to be ventilated; an insulation layer, arranged in the steel structure layer and located above the ventilation component, used to separate the concrete layer from the road base layer below.

[0007] 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 opposite each other in a vertical direction, the first side connecting plate and the second side connecting plate are respectively arranged 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 are surrounded to form a rectangular frame.

[0008] Optionally, a connecting groove is provided on the outer surface of the first side connecting plate, and a connecting protrusion is provided on the outer surface of the adjacent second side connecting plate. The adjacent first side connecting plate and the second side connecting plate are limitedly matched with the connecting protrusion through the connecting groove; a connecting slot is vertically connected to the first side connecting plate and the connecting protrusion, and a connecting pin is inserted in the connecting slot.

[0009] Optionally, the ventilation assembly includes a plurality of ventilation pipes arranged axially, and cross partitions are arranged at intervals along the length direction of the ventilation pipes in the steel structure layer, and a plurality of fixing holes are provided on the cross partitions for the ventilation pipes to pass through; a plurality of first ventilation holes are provided on the lower semicircular surface of the ventilation pipes, and a plurality of second ventilation holes are also provided on the bottom plate, and the ventilation pipes are connected to the roadbed layer through the first ventilation holes and the second ventilation holes.

[0010] Optionally, the driving assembly includes a bracket, a rotating rod, a windward blade, a first bevel gear, a second bevel gear, a transmission rod, a third bevel gear, a fourth bevel gear, a connecting rod and an exhaust blade; wherein the bracket is installed on one side of the asphalt pavement layer, the rotating rod is horizontally rotatably arranged on the bracket, and the windward blades are circumferentially arranged in plurality at the end of the rotating rod facing the vehicle, and the first bevel gear is coaxially arranged at the end of the rotating rod away from the windward blades; the transmission rod is vertically rotatably arranged on the bracket, the second bevel gear is coaxially arranged at the top of the transmission rod and meshed with the first bevel gear, and the third bevel gear is coaxially arranged at the bottom end of the transmission rod; the connecting rod is coaxially and rotatably arranged on one side of the pipe mouth of the ventilation pipe, one end of the connecting rod extends into the ventilation pipe, and the exhaust blades are circumferentially arranged in plurality at the end of the connecting rod facing the inside of the ventilation pipe, the fourth bevel gear is coaxially arranged at the end of the connecting rod away from the exhaust blades, and the fourth bevel gear is meshed with the third bevel gear.

[0011] Optionally, an upper guide pipe and a lower guide pipe are connected at the pipe opening of the ventilation 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.

[0012] Optionally, a limit block is provided at the lower end of the steel structure layer, and a limit groove for vertically embedding the limit block is provided on the base.

[0013] Optionally, guardrails are provided on both sides of the asphalt pavement layer, and the driving assembly is arranged on the outer side of the guardrail away from the asphalt pavement layer.

[0014] Optionally, an exhaust duct is horizontally connected to the turning pipe section of the upper guide pipe, and a blocking net is covered at the pipe opening of the exhaust duct away from the turning pipe section to prevent external particulate impurities from entering the exhaust duct, and an expanded water collecting bucket is embedded in the upper pipe opening of the upper guide pipe, and a convex edge is provided on the outer periphery of the expanded water collecting bucket, which fits with the edge of the upper pipe opening of the upper guide pipe, and a water diversion pipe is connected to the lower end of the expanded water collecting bucket, and the water diversion pipe passes through the upper guide pipe and extends to directly above the blocking net; a solar photovoltaic panel is provided on the guardrail, and an electric heating wire is covered in the expanded water collecting bucket, and the solar photovoltaic panel is electrically connected to the electric heating wire.

[0015] The present application also protects a construction method of an assembled ventilated and heat-dissipating pavement structure, which is used to manufacture the assembled ventilated and heat-dissipating pavement structure described in any of the above schemes, comprising the following steps: After the roadbed construction is completed, according to the design drawings, the foundation installation pit is excavated at the foundation coordinate position, the factory-prefabricated foundation is hoisted into place, and the surrounding area of ​​the foundation is backfilled and compacted; After being processed in the factory, the prefabricated pavement modules are transported to the construction site, hoisted and laid on the roadbed piece by piece along the longitudinal direction of the route, and the prefabricated pavement modules are placed horizontally in sequence; After the prefabricated pavement modules are laid, concrete is poured at the joints. When the concrete strength meets the design requirements, the pavement layer at the joints is laid. Finally, install the cooling system and debug the ventilation system after assembly.

[0016] The technical solution adopted by the present invention can achieve the following beneficial effects: 1. The assembled ventilation and heat dissipation pavement structure fully solves the limitations of existing technologies in permafrost areas through the reasonable combination of steel structure layer, concrete layer, asphalt pavement layer, and innovative design of base, heat dissipation system and insulation layer. Through effective ventilation and heat dissipation design, the pavement can not only be constructed quickly and improve construction efficiency, but also significantly reduce the disease rate of frozen soil roadbed and extend the service life of the pavement, thus meeting the needs of road engineering in extreme environments, and has broad application prospects and significant social benefits.

[0017] 2. Through the setting of the exhaust pipe, the air in the ventilation pipe can be discharged faster and less susceptible to resistance. At the same time, the setting of the blocking net can effectively prevent excessive external particulate impurities from entering the exhaust pipe, thereby effectively reducing the possibility of blockage. More importantly, since the pavement structure is in a frozen area, the surface of the blocking net is prone to ice in rainy and snowy weather, which may cause the blocking net to be blocked; therefore, the set electric heating wire can continuously heat the inside of the expanded water collection bucket under the action of the solar photovoltaic panel, so that the water inside the expanded water collection bucket is not easy to condense into ice cubes in rainy and snowy weather, but forms warm water or hot water that flows to the blocking net through the water diversion pipe. After the warm water or hot water is continuously discharged to the surface of the blocking net through the water diversion pipe, it can not only effectively prevent the surface of the blocking net from freezing, but also can discharge the dust particles attached to the surface of the blocking net, thereby effectively maintaining the blocking performance and ventilation performance of the blocking net. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the pavement structure of the embodiment of the present application. Figure 1 ; Figure 2 This is a schematic diagram of the pavement structure of the embodiment of the present application. Figure 2 ; Figure 3 is a partial schematic diagram of a pavement structure of an embodiment of the present application; Figure 4 is an exploded schematic diagram for showing a steel structure layer in an embodiment of the present application; Figure 5 yes Figure 2 A magnified view of part A in FIG. Figure 6 It is a partial schematic diagram for showing the interior of the steel structure layer in an embodiment of the present application; Figure 7 It is a partial schematic diagram for showing the lower part of the steel structure layer in an embodiment of the present application; Figure 8 is a partial schematic diagram for illustrating a driving component according to an embodiment of the present application; Fig. 9 It is a partial schematic diagram for showing the upper guide tube according to an embodiment of the present application.

[0020] In the figure: 100, assembled pavement module; 110, steel structure layer; 111, bottom 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, stop block; 120, concrete layer; 130, asphalt pavement layer; 131, guardrail; 200, base; 210, stop groove; 300, road base; 400, cooling system; 410, drive assembly; 411, bracket; 412, rotating Moving rod; 413, windward blade; 414, first bevel gear; 415, second bevel gear; 416, transmission rod; 417, third bevel gear; 418, fourth bevel gear; 419, connecting rod; 4191, exhaust blade; 420, ventilation assembly; 421, ventilation pipe; 4211, first vent; 500, thermal insulation layer; 600, transverse partition; 700, upper guide pipe; 710, exhaust pipe; 720, blocking net; 730, expanded water collecting bucket; 731, heating wire; 740, water diversion pipe; 800, lower guide pipe; 900, solar photovoltaic panel. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0022] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0023] The following is combined with Figures 1 to 9 , an assembled ventilation and heat dissipation pavement structure and a construction method provided by the present application are described in detail through specific embodiments and their application scenarios.

[0024] An assembled ventilation and heat dissipation pavement structure, referring to Figure 1 , Figure 2 as well as Figure 3 , including an assembled pavement module 100, a base 200, a heat dissipation system 400 and an insulation layer 500; wherein the assembled pavement module 100 includes a steel structure layer 110, a concrete layer 120 and an asphalt pavement layer 130 laid from bottom to top; exemplarily, the base 200 is arranged below the steel structure layer 110 and is located in the road base layer 300, and the base 200 is horizontally limitedly connected to the lower end of the steel structure layer 110 to limit the horizontal displacement of the steel structure layer 110.

[0025] At the same time, the heat dissipation system 400 includes a driving component 410 and a ventilation component 420. The ventilation component 420 is arranged in the steel structure layer 110 and is connected to the road base layer 300. The driving component 410 is arranged between the asphalt pavement layer 130 and the ventilation component 420, and the driving component 410 is used to generate suction acting on the ventilation component 420 to drive the interior of the ventilation component 420 to be ventilated.

[0026] Furthermore, the heat insulation layer 500 is disposed in the steel structure layer 110 and above the ventilation assembly 420 to separate the concrete layer 120 from the roadbed layer 300 below. Exemplarily, the heat insulation layer 500 is made of any one of foam concrete, polystyrene foam board, polyurethane foam board, expanded perlite and calcium silicate board.

[0027] On this basis, the assembled pavement module 100 is composed of a steel structure layer 110, a concrete layer 120 and an asphalt pavement layer 130, wherein 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 can not only meet the requirements of permafrost area road engineering, but also realize fast and convenient assembly construction through modular design, greatly improving construction efficiency and quality.

[0028] Secondly, the base 200 is arranged below the steel structure layer 110 and in the roadbed layer 300, and the horizontal displacement of the steel structure layer 110 is limited by the horizontal limit connection. This design effectively prevents the horizontal displacement of the pavement module due to factors such as thermal expansion and contraction during long-term use, avoids problems such as too large splicing gaps between modules, uneven pavement, and loose modules, thereby ensuring the long-term stability and service life of the pavement.

[0029] Most importantly, the present invention designs an efficient heat dissipation system 400, including a drive assembly 410 and a ventilation assembly 420. The ventilation assembly 420 is arranged in the steel structure layer 110 and is connected to the roadbed 300. The drive assembly 410 generates suction to drive the ventilation assembly 420 to exchange air. This heat dissipation system 400 can effectively take away the heat absorbed by the road surface through the ventilation assembly 420, prevent the heat from being transferred to the frozen soil roadbed through the road surface, thereby avoiding the occurrence of diseases such as frozen soil melting and roadbed settlement. The design of the ventilation assembly 420 allows the air in the road surface to circulate, improves the heat dissipation efficiency, reduces the retention time of heat in the roadbed, and fundamentally protects the frozen soil from being easily affected by thermal disturbances.

[0030] Finally, the heat insulation layer 500 is located inside the steel structure layer 110 and above the ventilation assembly 420. The function of the heat insulation layer 500 is to effectively isolate the concrete layer 120 and the roadbed 300 below from the heat source above, thereby reducing the heat transfer. Through the effective barrier function of the heat insulation layer 500, the influence of heat on the frozen soil is further reduced, thereby ensuring the stability of the roadbed and the integrity of the frozen soil.

[0031] In general, the assembled ventilation and heat dissipation pavement structure fully solves the limitations of the existing technology in the application of permafrost areas through the reasonable combination of the steel structure layer 110, the concrete layer 120, the asphalt pavement layer 130, and the innovative design of the base 200, the heat dissipation system 400 and the insulation layer 500. Through the effective ventilation and heat dissipation design, the pavement can not only be constructed quickly and improve the construction efficiency, but also significantly reduce the disease rate of frozen soil roadbed and extend the service life of the pavement, thereby meeting the needs of road engineering in extreme environments, and has broad application prospects and significant social benefits.

[0032] In some embodiments, 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 opposite to each other in the vertical direction. The first side connecting plate 113 and the second side connecting plate 114 are respectively arranged at the two 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 are surrounded to form a rectangular frame.

[0033] Exemplary, combined Figure 5 A connecting groove 1131 is provided on the outer surface of the first side connecting plate 113, and a connecting protrusion 1141 is provided on the outer surface of the adjacent second side connecting plate 114. The adjacent first side connecting plate 113 and the second side connecting plate 114 are limitedly matched by the connecting groove 1131 and the connecting protrusion 1141; further, a connecting slot 115 is vertically connected on the first side connecting plate 113 and the connecting protrusion 1141, and a connecting pin 116 is inserted into the connecting slot 115.

[0034] In this way, the connection groove 1131 and the connection protrusion 1141 can improve the connection fit between adjacent steel structure layers 110. At the same time, the insertion of the connection pin 116 makes the connection between adjacent steel structure layers 110 more stable, thereby improving the overall stability of the steel structure layers 110.

[0035] In some embodiments, in combination Figure 3 , Figure 6 as well as Figure 7 The ventilation assembly 420 includes a plurality of ventilation pipes 421 arranged axially, and transverse partitions 600 are arranged at intervals along the length direction of the ventilation pipes 421 in the steel structure layer 110, and a plurality of fixing holes for the ventilation pipes 421 to pass through are opened on the transverse partitions 600; illustratively, a plurality of first ventilation holes 4211 are opened on the lower semicircular arc surface of the ventilation pipe 421, and a plurality of second ventilation holes 1111 are also opened on the bottom plate 111, and the ventilation pipe 421 is connected to the roadbed layer 300 through the first ventilation holes 4211 and the second ventilation holes 1111.

[0036] After such arrangement, when the outside temperature is high, the heat insulating material can well insulate the heat absorbed by the asphalt pavement layer 130, and at the same time, the ventilation pipe 421 keeps the air inside the steel structure layer 110 circulating to control the temperature rise. When the outside temperature is low, the heat in the road base layer 300 enters the ventilation pipe 421 through the first vent hole 4211 and the second vent hole 1111, and is discharged in time by the ventilation pipe 421, thereby reducing the temperature of the road base layer 300 and preventing the frozen soil layer under the road base layer 300 from melting due to temperature changes. In short, the above arrangement can prevent the heat of the asphalt pavement layer 130 from being transferred downward to the road base layer 300 in summer, and transfer the heat in the road base layer 300 to the outside through the ventilation pipe 421 in winter.

[0037] In some embodiments, in combination Figure 1 , Figure 8 as well as Fig. 9 The driving 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 arranged on the bracket 411, and the windward blade 413 is circumferentially arranged at the end of the rotating rod 412 facing the vehicle, and the first bevel gear 414 is coaxially arranged at the end of the rotating rod 412 away from the windward blade 413; illustratively, the transmission rod 416 is vertically The straight-rotating device is arranged on the bracket 411, the second bevel gear 415 is coaxially arranged on the top of the transmission rod 416 and meshed with the first bevel gear 414, and the third bevel gear 417 is coaxially arranged on the bottom end of the transmission rod 416; illustratively, the connecting rod 419 is coaxially and rotatably arranged on one side of the pipe mouth of the ventilation pipe 421, one end of the connecting rod 419 extends into the ventilation pipe 421, and a plurality of exhaust blades 4191 are circumferentially arranged at one end of the connecting rod 419 facing the ventilation pipe 421, the fourth bevel gear 418 is coaxially arranged at one end of the connecting rod 419 away from the exhaust blade 4191, and the fourth bevel gear 418 is meshed with the third bevel gear 417.

[0038] Exemplarily, two sets of rolling bearings are provided on the bracket 411, one set of rolling bearings is interference fit with the rotating rod 412, and the other set of rolling bearings is interference fit with the transmission rod 416, so that the rotating rod 412 and the transmission rod 416 can be stably rotatably connected to the bracket 411. Furthermore, a mounting plate is provided outside the pipe opening of the ventilation pipe 421, and a set of rolling bearings is also provided above the mounting plate, and the connecting rod 419 passes through the inner ring of the rolling bearing and is interference fit with the rolling bearing.

[0039] With such arrangement, when a car passes over the asphalt pavement layer 130, the car will drive air flow fluctuations to form wind force, and the wind force will act on the windward blades 413, causing the multiple windward blades 413 to rotate; at this time, the rotating rod 412 will rotate with the rotation of the windward blades 413, driving the first bevel gear 414 to rotate, and the first bevel gear 414 in turn drives the second bevel gear 415 to rotate, thereby driving the transmission rod 416 to rotate; after the transmission rod 416 rotates, the third bevel gear 417 will also rotate synchronously, thereby driving the fourth bevel gear 418 to rotate; after the fourth bevel gear 418 rotates, it will drive the connecting rod 419 to rotate, and finally drive the exhaust blades 4191 to rotate, forming suction force, so that the air in the ventilation pipe 421 is sucked to the outside.

[0040] In some embodiments, in combination Figure 8 as well as Fig. 9 The pipe openings of the ventilation pipe 421 are connected with an upper guide pipe 700 and a lower guide pipe 800. The upper guide pipe 700 is arc-shaped and extends upward after avoiding the connecting rod 419, and the lower guide pipe 800 is arc-shaped and extends downward after avoiding the connecting rod 419. With such a configuration, the air in the ventilation pipe 421 can be discharged from the upper and lower sides of the connecting rod 419 through the upper guide pipe 700 and the lower guide pipe 800, which effectively solves the problem of poor axial air discharge effect in the ventilation pipe 421 due to the existence of the connecting rod 419.

[0041] In some embodiments, Figure 2 As shown, a limit block 117 is provided at the lower end of the steel structure layer 110, and a limit groove 210 is provided on the base 200 for the limit block 117 to be vertically embedded. In this way, through the plug-in cooperation of the limit block 117 and the limit groove 210, the steel structure layer 110 and the base 200 can be stably connected, and the horizontal limit of the overall pavement structure can be achieved, so as to avoid the pavement from slipping under extremely unfavorable working conditions and improve the overall stability of the overall pavement structure.

[0042] In some embodiments, in combination Figure 1 , Figure 8 as well as Fig. 9 Guardrails 131 are provided on both sides of the asphalt pavement layer 130 , and the driving assembly 410 is provided on the outer side of the guardrail 131 away from the asphalt pavement layer 130 .

[0043] In some embodiments, Figure 8 as well as Fig. 9As shown, an exhaust duct 710 is horizontally connected to the turning pipe section of the upper guide pipe 700, and a blocking net 720 is covered at the pipe mouth of the exhaust duct 710 away from the turning pipe section to prevent external particulate impurities from entering the exhaust duct 710. An expanded water collecting bucket 730 is embedded in the upper end pipe mouth of the upper guide pipe 700, and a convex edge is provided on the outer periphery of the expanded water collecting bucket 730, which fits with the edge of the upper end pipe mouth of the upper guide pipe 700. The lower end of the expanded water collecting bucket 730 is connected to a water diversion pipe 740, and the water diversion pipe 740 passes through the upper guide pipe 700 and extends to directly above the blocking net 720; illustratively, a solar photovoltaic panel 900 is provided on the guardrail 131, and a heating wire 731 is covered in the expanded water collecting bucket 730, and the solar photovoltaic panel 900 is electrically connected to the heating wire 731. Furthermore, the solar photovoltaic panel 900 is of the electricity storage type, which can store electricity on sunny days and be used to heat the heating wire 731 in rainy and snowy weather.

[0044] After such arrangement, the air in the ventilation pipe 421 can be discharged faster and less restricted by resistance through the arrangement of the exhaust pipe 710. At the same time, the arrangement of the blocking net 720 can effectively prevent excessive external particles from entering the exhaust pipe 710, thereby effectively reducing the possibility of blockage. More importantly, since the pavement structure is located in a frozen soil area, the surface of the blocking net 720 is prone to ice formation in rainy and snowy weather, which may cause the blocking net 720 to be blocked; therefore, the arranged heating wire 731 can continuously heat the inside of the expanded water collecting bucket 730 under the action of the solar photovoltaic panel 900, so that the water inside the expanded water collecting bucket 730 is not easy to condense into ice cubes in rainy and snowy weather, but forms warm water or hot water that flows to the blocking net 720 through the water diversion pipe 740. After the warm water or hot water is continuously discharged to the surface of the blocking net 720 through the water diversion pipe 740, it can not only effectively prevent the surface of the blocking net 720 from freezing, but also can discharge the dust particles attached to the surface of the blocking net 720, thereby effectively maintaining the blocking performance and ventilation performance of the blocking net 720.

[0045] The present application also discloses a construction method of an assembled ventilated and heat-dissipating pavement structure, which is used to manufacture the assembled ventilated and heat-dissipating pavement structure in any of the above embodiments, and comprises the following steps: After the roadbed construction is completed, according to the design drawings, the installation pit of the base 200 is excavated at the coordinate position of the base 200, the prefabricated base 200 is hoisted into place, and the surrounding area of ​​the base 200 is backfilled and compacted; After being processed in the factory, the assembled pavement modules 100 are transported to the construction site, hoisted and laid on the roadbed piece by piece along the longitudinal direction of the route, and the assembled pavement modules 100 are placed transversely in sequence; After the prefabricated pavement module 100 is laid, concrete is poured at the joint position, and after the concrete strength meets the design requirements, the pavement layer at the joint position is laid; Finally, the cooling system 400 is installed, and the ventilation system is debugged after the assembly is completed.

[0046] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0047] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that 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.

[0048] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An assembled ventilation and heat dissipation pavement structure, characterized in that: include: An assembled pavement module (100) comprises a steel structure layer (110), a concrete layer (120) and an asphalt pavement layer (130) arranged from bottom to top; A base (200) is disposed below the steel structure layer (110) and within the roadbed layer (300), wherein the base (200) is horizontally limitedly connected to the lower end of the steel structure layer (110) to limit the horizontal displacement of the steel structure layer (110); The heat dissipation system (400) comprises a driving component (410) and a ventilation component (420), wherein the ventilation component (420) is arranged in the steel structure layer (110) and is connected to the road base layer (300), the driving component (410) is arranged between the asphalt pavement layer (130) and the ventilation component (420), and the driving component (410) is used to generate a suction force acting on the ventilation component (420) to drive the interior of the ventilation component (420) to be ventilated; The heat insulation layer (500) is disposed in the steel structure layer (110) and above the ventilation assembly (420), and is used to separate the concrete layer (120) from the roadbed layer (300) below.

2. The assembled ventilation and heat dissipation pavement structure according to claim 1, characterized in that: The steel structure layer (110) comprises 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 opposite each other in a vertical direction; the first side connecting plate (113) and the second side connecting plate (114) are respectively arranged at two 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 and form a rectangular frame.

3. The assembled ventilation and heat dissipation pavement structure according to claim 2 is characterized in that: 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), and the adjacent first side connecting plate (113) and the second side connecting plate (114) are limitedly matched with the connecting groove (1131) and the connecting protrusion (1141); The first side connection plate (113) and the connection protrusion (1141) are both vertically connected and provided with a connection slot (115), and a connection pin (116) is inserted into the connection slot (115).

4. The assembled ventilation and heat dissipation pavement structure according to claim 2, characterized in that: The ventilation assembly (420) comprises a plurality of ventilation pipes (421) arranged axially, and transverse partitions (600) are arranged at intervals in the steel structure layer (110) along the length direction of the ventilation pipes (421), and the transverse partitions (600) are provided with a plurality of fixing holes for the ventilation pipes (421) to pass through; A plurality of first ventilation holes (4211) are provided on the lower semicircular surface of the ventilation pipe (421), and a plurality of second ventilation holes (1111) are also provided through the bottom plate (111); the ventilation pipe (421) is connected to the roadbed (300) via the first ventilation holes (4211) and the second ventilation holes (1111).

5. The assembled ventilation and heat dissipation pavement structure according to claim 4, characterized in that: The driving assembly (410) comprises 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 mounted on one side of an asphalt pavement layer (130), the rotating rod (412) is horizontally rotatably arranged on the bracket (411), a plurality of windward blades (413) are circumferentially arranged at an end of the rotating rod (412) facing the vehicle, and the first bevel gear (414) is coaxially arranged at an end of the rotating rod (412) away from the windward blade (413); The transmission rod (416) is vertically rotatably disposed on the bracket (411); the second bevel gear (415) is coaxially disposed on the top of the transmission rod (416) and meshes with the first bevel gear (414); and the third bevel gear (417) is coaxially disposed on the bottom end of the transmission rod (416); The connecting rod (419) is coaxially and rotatably arranged on one side of the pipe opening of the ventilation pipe (421); one end of the connecting rod (419) extends into the ventilation pipe (421); and a plurality of exhaust blades (4191) are circumferentially arranged at one end of the connecting rod (419) facing the ventilation pipe (421); the fourth bevel gear (418) is coaxially arranged at one end of the connecting rod (419) facing away from the exhaust blades (4191); and the fourth bevel gear (418) is meshed with the third bevel gear (417).

6. The assembled ventilation and heat dissipation pavement structure according to claim 5, characterized in that: An upper guide pipe (700) and a lower guide pipe (800) are provided at the pipe openings of the ventilation pipes (421); the upper guide pipe (700) is arc-shaped and extends upward after avoiding the connecting rod (419); the lower guide pipe (800) is arc-shaped and extends downward after avoiding the connecting rod (419).

7. An assembled ventilation and heat dissipation pavement structure according to any one of claims 1 to 6, characterized in that: A limit block (117) is provided at the lower end of the steel structure layer (110), and a limit groove (210) is provided on the base (200) for the limit block (117) to be vertically embedded.

8. The assembled ventilation and heat dissipation pavement structure according to claim 6, characterized in that: Guardrails (131) are provided on both sides of the asphalt pavement layer (130), and the driving assembly (410) is arranged on the outer side of the guardrail (131) away from the asphalt pavement layer (130).

9. The assembled ventilation and heat dissipation pavement structure according to claim 8, characterized in that: An exhaust pipe (710) is horizontally connected to the turning pipe section of the upper guide pipe (700); a blocking net (720) is covered at the pipe opening of the exhaust pipe (710) away from the turning pipe section to prevent external particulate impurities from entering the exhaust pipe (710); an expanded water collecting bucket (730) is embedded in the pipe opening at the upper end of the upper guide pipe (700); a convex edge is provided on the outer periphery of the expanded water collecting bucket (730), and the convex edge is in contact with the edge of the pipe opening at the upper end of the upper guide pipe (700); a water diversion pipe (740) is connected to the lower end of the expanded water collecting bucket (730); and the water diversion pipe (740) passes through the upper guide pipe (700) and extends to directly above the blocking net (720); The guardrail (131) is provided with a solar photovoltaic panel (900), the expanded water collecting bucket (730) is covered with a heating wire (731), and the solar photovoltaic panel (900) is electrically connected to the heating wire (731).

10. A construction method for an assembled ventilated and heat-dissipating pavement structure, used to manufacture the assembled ventilated and heat-dissipating pavement structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: After the roadbed construction is completed, according to the design drawings, a pit for installing the base (200) is excavated at the coordinate position of the base (200), the base (200) prefabricated in the factory is hoisted into place, and the surrounding area of ​​the base (200) is backfilled and compacted; After being processed in the factory, the assembled pavement modules (100) are transported to the construction site, hoisted and laid on the roadbed piece by piece along the longitudinal direction of the route, and the assembled pavement modules (100) are placed transversely in sequence; After the prefabricated pavement module (100) is laid, concrete is poured at the joint position, and after the concrete strength meets the design requirements, the pavement layer at the joint position is laid; Finally, install the cooling system (400), and after assembly, debug the ventilation system.

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