CN111648191A - Pavement structure - Google Patents

Abstract

The invention discloses a pavement structure, comprising: one or more layers of honeycomb structures, wherein the honeycomb structure is a honeycomb structure, wherein the axial direction of the honeycomb holes is arranged perpendicular to the ground direction; in the multi-layer honeycomb structure, each layer of the honeycomb structure The honeycomb cell density of the body is the same or different; the protection body, the protection body is arranged above the honeycomb structure body. The present invention can effectively disperse the concentrated load of a single tire of a vehicle up to about 8 tons repeatedly on the road surface to the road surface below the present invention. The present invention can be applied to frozen soil pavement. In the case of frozen soil pavement, even if the frozen soil is thawed or potholes in a large area, the maximum contact pressure between the present invention and the frozen soil base is still less than 1.4 tons per square meter; under this uniform load state, even if The thawed permafrost is very soft and can still be in a state of elastic deformation, so the road surface using the present invention will not collapse as a whole, and when the vehicle tire load is removed, the slight deformation of the road surface can be completely recovered. The present invention can also be used for temporary or permanent roads in swampy, soft conditions.

Description

pavement structure

technical field

The present invention relates to a pavement structure.

Background technique

It will be more difficult for the vehicle to drive when the road surface is in poor condition, such as the road surface is soft and prone to dents. For example, there are seasonally frozen soils on roads in some parts of my country. Under such road conditions, the frozen soil with low temperature in winter will expand, and the frozen soil with high temperature in summer will melt and shrink, forming local cavities, the soil becomes muddy, the foundation is prone to subsidence, becomes potholes, and foundation settlement is prone to occur. In order to prevent the thawing of the frozen soil subgrade in summer, the temperature of some road sections is adjusted inside the subgrade by using phase change materials, that is, a hot rod is used. Although the hot rod is a natural refrigerator and does not require power, the production cost of the entire road hot rod is very high. At the same time, if the temperature changes dramatically in summer and winter, the liquid ammonia inside the hot rod may be completely vaporized, and the inside of the foundation is very likely to melt, resulting in road conditions that are impassable for vehicles.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a pavement structure.

To achieve the above object, the present invention is achieved through the following technical solutions:

A pavement structure comprising:

One or more layers of honeycomb structure body, the honeycomb structure body is a honeycomb structure, wherein the axial direction of the honeycomb hole is arranged perpendicular to the ground direction; in the multi-layer honeycomb structure body, the honeycomb hole density of each layer of the honeycomb structure body is the same or different;

The protective body is arranged above the honeycomb structure body.

According to an embodiment of the present invention, the multi-layer honeycomb structure includes: a first high-density honeycomb layer, a medium-density honeycomb layer and a second high-density honeycomb layer, a first high-density honeycomb layer, a medium-density honeycomb layer and a second high-density honeycomb layer The two high-density honeycomb layers are arranged in sequence from top to bottom, the honeycomb hole densities of the first high-density honeycomb layer and the second high-density honeycomb layer are the same or different, and the first high-density honeycomb layer and the second high-density honeycomb layer The honeycomb hole densities are all greater than those of the medium-density honeycomb layer. Medium density means that the honeycomb hole density is 50kg/m ³ to 150kg/m ³ , and high density means that the honeycomb hole density is greater than 150kg/m ³ .

According to an embodiment of the present invention, the first high-density honeycomb layer, the second high-density honeycomb layer and/or the medium-density honeycomb layer includes a plurality of honeycomb subunits, that is, the first high-density honeycomb layer includes a plurality of the first high-density honeycomb layer. a honeycomb subunit, the second high density honeycomb layer includes a plurality of second honeycomb subunits, the medium density honeycomb layer includes a plurality of third honeycomb subunits, the first honeycomb subunit, the second honeycomb subunit and the third honeycomb subunit A honeycomb connecting unit is formed by combining with each other along the axial direction of the honeycomb holes, and a plurality of honeycomb connecting units are connected to each other.

According to an embodiment of the present invention, it further includes a first tensile layer, the first honeycomb subunit, the third honeycomb subunit and the second honeycomb subunit are arranged in sequence from top to bottom along the axial direction of the honeycomb hole, the first honeycomb subunit is A first tensile layer is respectively provided between the unit and the third honeycomb subunit, between the third honeycomb subunit and the second honeycomb subunit, on the upper surface of the first honeycomb subunit, and on the lower surface of the second honeycomb subunit.

According to an embodiment of the present invention, a first tensile layer is arranged above and/or below the honeycomb structure body; and a first tensile layer is arranged between the multilayer honeycomb structures.

According to an embodiment of the present invention, a connecting mechanism is further included, by which the two cellular connecting units are connected.

According to an embodiment of the present invention, the connection mechanism includes an edge-sealing profile, the edge-sealing profile is arranged at the end of the honeycomb connecting unit, and the edge-sealing profile includes a first edge-sealing profile and a second edge-sealing profile that can be connected to each other. , the first edge-sealing profile and the second edge-sealing profile are respectively connected to different honeycomb subunits.

According to an embodiment of the present invention, the first edge-sealing profile and the second edge-sealing profile are connected with each other, and the connection method includes bonding or connection through locking.

According to an embodiment of the present invention, it further includes a honeycomb connecting block, the edge-sealing profile is arranged at the end of the third honeycomb subunit, the first tensile layer extends to the surface of the edge-sealing profile, and the first tensile layer of the two mutually connected edge-sealing profiles A honeycomb connection block is arranged on a tensile layer.

According to an embodiment of the present invention, the honeycomb connecting block is a honeycomb structure, and the axial direction of the honeycomb holes thereof is consistent with the axial direction of the honeycomb holes of the honeycomb subunits.

According to an embodiment of the present invention, the upper surface and/or the lower surface of the honeycomb connecting block is provided with a second tensile layer.

According to an embodiment of the present invention, a connecting piece is provided in the honeycomb connecting block, and the connecting piece is used to connect two honeycomb connecting blocks.

According to an embodiment of the present invention, the material of the first tensile layer and/or the second tensile layer is fiber-reinforced resin.

According to an embodiment of the present invention, the honeycomb subunits and/or the honeycomb connecting blocks are filled with foam materials.

According to an embodiment of the present invention, the shape of the honeycomb pores in the honeycomb structure includes any geometric shape.

According to an embodiment of the present invention, it further includes a geotextile-coated sand layer and/or a sand layer, a geotextile-coated sand layer is provided below the honeycomb structure, or a geotextile-coated sand layer and a sand layer are provided below the honeycomb structure. The sand layer is arranged below the geotextile-wrapped sand layer.

According to an embodiment of the present invention, it further includes a soil filling layer and/or a riprap layer, the soil filling layer is arranged below the honeycomb structure body or below the geotextile-wrapped sand layer, and the riprap layer is arranged at the bottom of the filling layer. below.

According to an embodiment of the present invention, an elevated structure is provided below the honeycomb structure, and the elevated structure includes a column.

According to an embodiment of the present invention, the pavement structure is a pavement structure for roads under soft conditions, and the soft conditions include frozen soil or swamps.

The invention provides the honeycomb structure body, which can be used for dispersing the load of the automobile tire, and dispersing the load of the automobile tire from the stress point of the honeycomb structure body to the whole honeycomb structure body. In the multi-layer honeycomb structure, the first high-density honeycomb layer directly bears the load of automobiles, forklifts or other heavy wheeled equipment, and the second high-density honeycomb layer contacts the underlying road such as rock load, so the honeycomb density and strength of the two layers are set. It is large enough to withstand a certain load; since the load has been dispersed when it reaches the middle medium density honeycomb layer, from the perspective of cost saving, the medium density honeycomb layer is set smaller; the first tensile layer and the second tensile layer are Pull layers are used for stress connections.

The present invention can effectively disperse the concentrated load of a single tire of a vehicle up to about 8 tons repeatedly on the road surface to the road surface below the present invention. The present invention can be applied to frozen soil pavement. In the case of frozen soil pavement, even if the frozen soil is thawed or potholes in a large area, the maximum contact pressure between the present invention and the frozen soil base is still less than 1.4 tons per square meter; under this uniform load state, even if The thawed permafrost is very soft and can still be in a state of elastic deformation, so the road surface using the present invention will not collapse as a whole, and when the vehicle tire load is removed, the slight deformation of the road surface can be completely recovered. The honeycomb subunits and/or the honeycomb connecting blocks are filled with foam material to increase the thermal insulation performance of the honeycomb material, which is more conducive to preventing the thawing of the frozen soil in summer under the condition of frozen soil pavement. The present invention can also be used in swampy or soft road sections, urban municipal roads and highways.

Description of drawings

1 is a schematic structural diagram of a honeycomb structure, a protective body, a first tensile layer and a second tensile layer;

Fig. 2 is a kind of honeycomb hole radial cross-sectional schematic diagram;

3 is a schematic diagram of a vertical cross-sectional view of a honeycomb cell of a trapezoidal combination;

Fig. 4 is the axial schematic diagram of the honeycomb hole of the honeycomb structure;

5 is a schematic structural diagram of a cellular connection unit;

6 is a schematic diagram of using gap filling;

Fig. 7 is the schematic diagram of using geotextile to wrap sand layer in embodiment 1;

Fig. 8 is the schematic diagram of using geotextile to wrap sand layer and sand layer in Example 1;

Fig. 9 is the schematic diagram of using filling layer in embodiment 2;

Fig. 10 is the schematic diagram of using geotextile to wrap sand layer and filling layer in Example 2;

Figure 11 is the schematic diagram of using the geotextile to wrap the sand layer, the filling layer and the riprap layer in Example 2;

Fig. 12 is the schematic diagram of using filling layer and riprap layer in Example 2;

13 is a schematic diagram of Embodiment 3;

14 is a schematic structural diagram of Embodiment 4;

FIG. 15 is a schematic structural diagram of Embodiment 5. FIG.

Detailed ways

The present invention is described in detail below in conjunction with the accompanying drawings:

As shown in FIG. 1 , the pavement structure of this embodiment includes: one or more layers of honeycomb structures; and a protection body 12 , the protection body 12 is used to protect the honeycomb structure, and the protection body 12 is arranged above the honeycomb structure. The honeycomb structure body is a honeycomb structure, and the shape of the honeycomb holes can be set according to actual conditions and needs, and can be any geometric shape, including a hexagon or a hexagon combined with other shapes. As shown in Figure 2, it is an example of a hexagonal honeycomb hole. As shown in FIG. 3 , which is an example of a hexagonal honeycomb hole formed by a combination of two trapezoids, the manufacturing cost of the combination of the two trapezoids is low. As shown in FIG. 4 , the axial direction H of the honeycomb holes is arranged perpendicular to the ground direction; in the multi-layer honeycomb structure, the honeycomb hole density of each layer of the honeycomb structure is the same or different. In this embodiment, the material of the protection body 12 is asphalt. A first tensile layer 4 is arranged above and/or below the honeycomb structure body; a first tensile layer 4 is arranged between the multilayer honeycomb structures.

In this embodiment, the multi-layer honeycomb structure includes: a first high-density honeycomb layer 1 , a medium-density honeycomb layer 3 and a second high-density honeycomb layer 2 , a first high-density honeycomb layer 1 , and a medium-density honeycomb layer 3 and the second high-density honeycomb layer 2 are arranged sequentially from top to bottom as shown in FIG. 1 .

Medium density refers to the honeycomb cell density of 50kg/m ³ to 150kg/m ³ , for example, the honeycomb cell density is 50kg/m ³ , 70kg/m ³ , 85kg/m ³ , 100kg/m ³ , 120kg/m ³ or 150kg /m ³ , high density means that the density of honeycomb holes is greater than 150kg/m ³ , for example, the density of honeycomb holes is 160kg/m ³ , 180kg/m ³ , 200kg/m ³ , 250kg/m ³ , 280kg/m ³ or 300kg/ m ³ , the honeycomb hole densities of the first high-density honeycomb layer and the second high-density honeycomb layer are the same or different, and the honeycomb hole densities of the first high-density honeycomb layer and the second high-density honeycomb layer are both greater than those of the medium-density honeycomb layer Cell density.

As shown in FIG. 5 , the first high-density honeycomb layer 1 , the second high-density honeycomb layer 2 and/or the medium-density honeycomb layer 3 include multiple honeycomb subunits, that is, the first high-density honeycomb layer 1 includes multiple honeycomb subunits. Each of the first honeycomb subunits 61 , the second high-density honeycomb layer 2 includes a plurality of second honeycomb subunits 62 , and the medium-density honeycomb layer 3 includes a plurality of third honeycomb subunits 63 . The first honeycomb subunit 61 , the second honeycomb subunit 62 and the third honeycomb subunit 63 are combined with each other along the axial direction of the honeycomb holes to form a honeycomb connecting unit 6 , and a plurality of honeycomb connecting units 6 are connected to each other. A plurality of honeycomb connecting units 6 are connected to each other and extend to the periphery along the radial direction of the honeycomb holes to form an overall stress-bearing structure. In this embodiment, the first cellular sub-unit 61 , the second cellular sub-unit 62 , the third cellular sub-unit 63 and the cellular connection unit 6 are all rectangular parallelepipeds.

The honeycomb connecting unit 6 is provided with the first tensile layer 4, specifically, the first honeycomb subunit 61, the second honeycomb subunit 62, the third honeycomb subunit 63 and the first tensile layer 4 are combined with each other along the axial direction of the honeycomb holes The cellular connection unit 6 is formed. In this embodiment, as shown in FIG. 5 , the first honeycomb subunit 61 , the third honeycomb subunit 63 and the second honeycomb subunit 62 are arranged in order from top to bottom along the axial direction of the honeycomb hole, and the first honeycomb subunit 61 Between the third honeycomb subunit 63 and the third honeycomb subunit 63 and the second honeycomb subunit 62, as well as the upper surface of the first honeycomb subunit 61 and the lower surface of the second honeycomb subunit 62, the first The layer 4 is pulled, thus forming a honeycomb connection unit 6 . The connection between the first tensile layer 4 and each honeycomb subunit 61, 62, 63 is bonding.

As shown in FIG. 1 , this embodiment further includes a connection mechanism, which is used to connect any two cellular connection units 6 . The connecting mechanism includes an edge-sealing profile, which is arranged at the end of the honeycomb connecting unit 6, and the edge-sealing profile includes a first edge-sealing profile 7 and a second edge-sealing profile 8 that can cooperate with each other. 7 and the second edge sealing profile 8 are respectively connected to different honeycomb subunits 61, 62, 63. The connection mechanism also includes a cellular connection block 9 .

In this embodiment, the edge-sealing profiles are arranged at the end of the third honeycomb sub-unit 63 , and a plurality of edge-sealing profiles can be provided according to the honeycomb height of the third honeycomb sub-unit 63 . The ends of the first edge-sealing profile 7 and the second edge-sealing profile 8 are in conformity with each other, and the connection method includes bonding or connecting through a lock. The first tensile layer 4 on the honeycomb subunit can be extended in advance, so that the first tensile layer 4 extends to the surface of the corresponding edge sealing profile. Honeycomb connecting blocks 9 are arranged on the first tensile layer 4 of the two edge-sealing profiles connected to each other, so that honeycomb connecting blocks 9 are arranged above and below the edge-sealing profiles connected to the two edge-sealing profiles. The honeycomb connecting block 9 has a honeycomb structure. The honeycomb connecting block 9 in this embodiment is a high-density honeycomb structure with a honeycomb hole density greater than 150kg/m ³ , for example, the honeycomb hole densities are 160kg/m ³ , 180kg/m ³ , 200kg/m ³ , 250kg/m ³ , 280kg/ m ³ or 300kg/m ³ . The axial direction of the honeycomb holes of the honeycomb connecting block 9 is consistent with the axial direction of the honeycomb holes of the honeycomb subunits 61 , 62 and 63 . The upper surface and/or the lower surface of the honeycomb connecting block 9 is provided with a second tensile layer 10 in a manner of bonding. The honeycomb connecting block 9 is provided with a bolt connecting piece 11, and the bolt connecting piece 11 is used to connect the two honeycomb connecting blocks 9 above and below the edge-sealing profile.

The material of the first tensile layer 4 and/or the second tensile layer 10 is fiber reinforced resin. Fiber-reinforced resins are composite materials of fibers and resins. Fibers include glass fibers, basalt fibers, aramid fibers, ceramic fibers, bamboo fibers, cloth, carbon fibers, metal fibers, boron fibers, asbestos fibers, orlon fibers, polyester fibers, nylon fibers, vinylon fibers, polypropylene fibers, One or more of polyimide fiber, cotton fiber and sisal. Resins include vinyl resins, epoxy resins, phenolic resins, polyurethane resins, benzoxazine resins, polyimide resins, bismaleimide resins, urea-formaldehyde resins, melamine resins, unsaturated polyester resins, silicones One or more of resin and polyurethane.

As shown in FIG. 1 and FIG. 5 , when in use, the first honeycomb subunit 61 , the third honeycomb subunit 63 , the second honeycomb subunit 62 and the first tensile layer 4 are bonded to each other to form a plurality of The cellular connection unit 6 , the first cellular sub-unit 61 , the third cellular sub-unit 63 and the second cellular sub-unit 62 are arranged sequentially from top to bottom as shown in FIG. 1 and FIG. 5 . The ends of the two adjacent third honeycomb subunits 63 are respectively provided with the first edge-sealing profile 7 and the second edge-sealing profile 8, that is, one of the first edge-sealing profile 7 and the second edge-sealing profile The end of the three honeycomb subunits 63 is arranged at the end of another third honeycomb subunit 63 . The first edge-sealing profile 7 and the second edge-sealing profile 8 are connected and/or bonded by means of locking, so that the two honeycomb connecting units 6 are connected. The first tensile layer 4 disposed on the upper and lower surfaces of the third honeycomb subunit 63 is pre-extended so that the first tensile layer 4 extends to the upper and lower surfaces of the first edge-sealing profile 7 or the second edge-sealing profile 8 . Honeycomb connecting blocks 9 are arranged on the first tensile layer 4 above the first edge-sealing profiles 7 and the second edge-sealing profiles 8 , and the first tensile layer below the first edge-sealing profiles 7 and the second edge-sealing profiles 8 A honeycomb connecting block 9 is arranged below 4 , and the upper and lower honeycomb connecting blocks 9 are tightened by bolt connection pieces 11 . In order to continue to increase the splicing strength of the adjacent honeycomb connecting units 6 , the upper surface of the upper honeycomb connecting block 9 is provided with a second tensile layer 10 , and the lower surface of the lower honeycomb connecting block 9 is provided with a second tensile layer 10 . In this way, after the adhesive glue is cured, all the spliced honeycomb connecting units 6 are formed into one body, and the whole is stressed. Then, the protective body 12 is laid on the above-mentioned completed structure.

The protective body 12 can also be pre-arranged, that is, the protective body 12 is provided on the first tensile layer 4 above the first honeycomb subunit 61 . During connection, if there is a gap between the protective bodies 12 corresponding to the two honeycomb connecting units 6, as shown in FIG. Fill the asphalt protector or quartz sand resin layer 5.

As shown in FIG. 1 , this embodiment is described by taking the connection of two cellular connection units 6 as an example. The cellular connection unit 6 is generally a rectangular parallelepiped. When a plurality of honeycomb connecting units 6 are connected, the connecting mechanisms are arranged on the left and right sides of the honeycomb connecting units 6 and the front and rear sides of the paper in FIG.

Alternatively, the end of the third honeycomb sub-unit 63 is bonded to the edge-sealing profile, and the two edge-sealing profiles are connected and/or bonded by a lock, so that the two third honeycomb sub-units 63 are connected, and then the first honeycomb is arranged. The unit 61, the second honeycomb subunit 62, the first tensile layer 4, the honeycomb connection block 9, the second tensile layer 10, the protective body 12 and other structures. Finally, a force-bearing overall structure is formed.

The honeycomb subunits 61, 62, 63 and/or the honeycomb holes of the honeycomb connecting block 9 are filled with foam material. The foam material may be a foam material with thermal insulation performance according to the actual situation. In this embodiment, polyurethane foam, polystyrene foam or phenolic foam is selected.

As shown in FIG. 7 , a geotextile-coated sand layer 13 is arranged below the honeycomb structure. The geotextile-coated sand layer 13 is a geotextile containing sand inside. In use, the honeycomb structure body and the geotextile-coated sand layer 13 are directly laid on the swamp or soft soil layer, without laying riprap roadbed and filling layer, and a permanent road or a temporary road is constructed.

As shown in FIG. 8 , a sand layer 14 may be provided below the geotextile-covered sand layer 13 as required. When laying, the soft soil of the pavement can be leveled first, and then the sand layer 14 and the geotextile-coated sand layer 13 can be laid, so that the traditional pavement foundation structure can be omitted.

Example 2

As shown in FIG. 9 , this embodiment includes a soil filling layer 16 , and the soil filling layer 16 is arranged below the honeycomb structure body. In another embodiment, as shown in FIG. 10 , the honeycomb structure body, the geotextile-coated sand layer 13 and the filling layer 16 are arranged in sequence from top to bottom.

Some permafrost roads may have water wading phenomenon in some seasons. In this case, the riprap layer 15 can be used, and the riprap layer 15 provides thermal insulation and ventilation functions. The riprap layer 15 is a riprap roadbed or a gravel roadbed. For example, as shown in FIG. 11 , the honeycomb structure body, the geotextile-coated sand layer 13 , the filling layer 16 and the riprap layer 15 are arranged in sequence from top to bottom. In another specific embodiment, for example, as shown in FIG. 12 , the honeycomb structure body, the soil filling layer 16 and the riprap layer 15 are arranged in sequence from top to bottom.

Example 3

As shown in FIG. 13 , an elevated structure 17 is arranged below the honeycomb structure, and the elevated structure 17 includes a column. This is suitable when permafrost roads involve animal migration, ensuring the passage of animals, people or water.

Example 4

As shown in FIG. 14 , this embodiment is a simplified embodiment mode, and this embodiment includes a layer of honeycomb structure, that is, a first high-density honeycomb layer 1 . The first high-density honeycomb layer 1 is formed by connecting a plurality of first honeycomb sub-units 61 , and the connection method includes connecting mechanism connection and bonding. The upper surface and the lower surface of the first high-density honeycomb layer 1 are respectively provided with a first tensile layer 4 . A protective body 12 is provided above the first tensile layer 4 on the upper surface of the first high-density honeycomb layer 1 . Similar to Embodiments 1, 2, and 3, the lower part of the honeycomb structure body can be arranged as required. In this embodiment, the lower part of the first high-density honeycomb layer 1 is provided with a geotextile-coated sand layer 13 and a sand layer 14 .

Example 5

As shown in FIG. 15 , this embodiment is a simplified embodiment. This embodiment includes two layers of honeycomb structures, namely, a first high-density honeycomb layer 1 and a second high-density honeycomb layer 2 , and the first high-density honeycomb layer 1 And the second high-density honeycomb layer 2 is bonded up and down. The first high-density honeycomb layer 1 is formed by connecting a plurality of first honeycomb subunits 61 , and the second high-density honeycomb layer 2 is formed by connecting a plurality of second honeycomb subunits 62 . A first tensile layer 4 is respectively provided on the upper surface of the first high-density honeycomb layer 1 , between the first high-density honeycomb layer 1 and the second high-density honeycomb layer 2 , and on the lower surface of the second high-density honeycomb layer 2 . A protective body 12 is provided above the first tensile layer 4 on the upper surface of the first high-density honeycomb layer 1 . Similar to Embodiments 1, 2, and 3, the lower part of the honeycomb structure body can be arranged as required. In this embodiment, the lower part of the second high-density honeycomb layer 2 is provided with a geotextile-coated sand layer 13 and a sand layer 14 .

The invention provides the honeycomb structure body, which can be used for dispersing the load of the automobile tire, and dispersing the load of the automobile tire from the stress point of the honeycomb structure body to the whole honeycomb structure body. In the multi-layer honeycomb structure, the first high-density honeycomb layer 1 directly bears the load of automobiles, forklifts or other heavy wheeled equipment, and the second high-density honeycomb layer 2 contacts the underlying road such as rock load, so the honeycomb density of the two layers is equal to The strength is set high and can bear a certain load; since the load has been dispersed when it reaches the middle density honeycomb layer 3 in the middle layer, from the perspective of cost saving, the medium density honeycomb layer 3 is set smaller; the first tensile strength Layer 4 and second tensile layer 10 are used for the force connection.

The present invention can effectively disperse the concentrated load of a single tire of a vehicle up to about 8 tons repeatedly on the road surface to the road surface below the present invention. The present invention can be applied to frozen soil pavement. In the case of frozen soil pavement, even if the frozen soil is thawed or potholes in a large area, the maximum contact pressure between the present invention and the frozen soil base is still less than 1.4 tons per square meter; under this uniform load state, even if The thawed permafrost is very soft and can still be in a state of elastic deformation, so the road surface using the present invention will not collapse as a whole, and when the vehicle tire load is removed, the slight deformation of the road surface can be completely recovered. The honeycomb subunits and/or the honeycomb connecting block 9 are filled with foam material to increase the thermal insulation performance of the honeycomb material, which is more conducive to preventing the thawing of the frozen soil in summer under the condition of frozen soil road surface. The present invention can also be used in swampy or soft road sections, urban municipal roads and highways.

The embodiments in the present invention are only used to illustrate the present invention, and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions that can be conceived by those skilled in the art are all within the protection scope of the present invention.

Claims (15)

1. A pavement structure, comprising:

one or more layers of honeycomb structures, wherein the honeycomb structures are honeycomb structures, and the axial directions of honeycomb holes are vertical to the ground direction; in the multilayer honeycomb structure body, the honeycomb pore density of each layer of honeycomb structure body is the same or different;

and a protective member provided above the honeycomb structure.

2. A pavement structure as set forth in claim 1, wherein said multilayer honeycomb structure comprises: first high density honeycomb layer, medium density honeycomb layer and second high density honeycomb layer, first high density honeycomb layer, medium density honeycomb layer and second high density honeycomb layer set up from last to down in order, and the honeycomb hole density of first high density honeycomb layer and second high density honeycomb layer is the same or inequality, and the honeycomb hole density of first high density honeycomb layer and second high density honeycomb layer all is greater than the honeycomb hole density of medium density honeycomb layer.

3. The pavement structure according to claim 2, wherein the first high-density honeycomb layer, the second high-density honeycomb layer and/or the medium-density honeycomb layer comprise a plurality of honeycomb subunits, i.e., the first high-density honeycomb layer comprises a plurality of first honeycomb subunits, the second high-density honeycomb layer comprises a plurality of second honeycomb subunits, the medium-density honeycomb layer comprises a plurality of third honeycomb subunits, and the first honeycomb subunits, the second honeycomb subunits and the third honeycomb subunits are combined with each other in the axial direction of the honeycomb holes to form honeycomb connecting units, and the plurality of honeycomb connecting units are connected with each other.

4. The pavement structure according to claim 3, further comprising a first tensile layer, wherein the first honeycomb subunit, the third honeycomb subunit and the second honeycomb subunit are arranged in sequence from top to bottom along the axial direction of the honeycomb hole, and the first tensile layer is arranged between the first honeycomb subunit and the third honeycomb subunit, between the third honeycomb subunit and the second honeycomb subunit, on the upper surface of the first honeycomb subunit and on the lower surface of the second honeycomb subunit, respectively.

5. A pavement structure according to claim 1, characterized in that a first tensile layer is provided above and/or below the honeycomb structure; a first tensile layer is disposed between the multi-layered honeycomb structure.

6. A pavement structure according to claim 4, further comprising a connecting mechanism by which two honeycomb connecting units are connected.

7. A pavement structure according to claim 6, characterized in that the connection means comprises edge banding profiles provided at the ends of the honeycomb connecting units, the edge banding profiles comprising a first edge banding profile and a second edge banding profile adapted to be coupled to each other, the first edge banding profile and the second edge banding profile being coupled to different honeycomb sub-units, respectively.

8. A pavement structure as claimed in claim 7, wherein the connecting mechanism further comprises a honeycomb connecting block, the edge banding section is disposed at the end of the third honeycomb subunit, the first tensile layer extends to the surface of the edge banding section, and the honeycomb connecting block is disposed on the first tensile layer of the two edge banding sections connected with each other; the honeycomb connecting block is of a honeycomb structure, and the axial direction of a honeycomb hole of the honeycomb connecting block is consistent with the axial direction of a honeycomb hole of a honeycomb subunit; the upper surface and/or the lower surface of the honeycomb connecting block is/are provided with a second tensile layer; and a connecting piece is arranged in the honeycomb connecting block and is used for connecting the two honeycomb connecting blocks.

9. A pavement structure as claimed in claim 8, characterized in that the first and/or second tensile layer is/are made of fibre-reinforced resin.

10. A pavement structure according to claim 8, characterized in that the cells of said cell sub-units and/or cell connector blocks are filled with a foam material.

11. A pavement structure according to claim 1, characterized in that the honeycomb cell shape of said honeycomb structure comprises any geometric shape.

12. A pavement structure according to claim 1, further comprising a geotextile sand-wrapped layer and/or a sand layer, wherein the geotextile sand-wrapped layer is disposed under the honeycomb structure, or the geotextile sand-wrapped layer and the sand layer are disposed under the honeycomb structure, and the sand layer is disposed under the geotextile sand-wrapped layer.

13. A pavement structure according to claim 12, further comprising a filler layer provided below the honeycomb structure or a geotextile-wrapped sand layer and/or a riprap layer provided below the filler layer.

14. A pavement structure according to claim 1, characterized in that an elevated structure is provided below said honeycomb structure, said elevated structure comprising pillars.

15. A pavement structure according to any of claims 1-14, characterized in that said pavement structure is a pavement structure for roads in soft conditions, including frozen earth or marshes.

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