Functional combined structure recovery layer applied to asphalt pavement maintenance

Abstract

The invention discloses a functional combination structure recovery layer applied to asphalt pavement maintenance, and relates to the field of traffic passage, the functional combination structure recovery layer comprises a base layer, a highway pavement is laid on the base layer, a maintenance groove is formed in the highway pavement, and a cold material asphalt layer is arranged in the maintenance groove; a stable supporting mechanism is arranged between the cold material asphalt layer and the base layer, and a pressure dispersing mechanism is arranged between the stable supporting mechanism and the base layer. When a heavy vehicle passes by, the stable supporting mechanism supports the cold material asphalt layer, the possibility that the cold material asphalt layer sinks due to too large pressure is reduced, meanwhile, the pressure is transmitted to the pressure dispersing mechanism from the stable supporting mechanism, and the pressure dispersing mechanism can disperse the pressure while transmitting the pressure to the base layer, so that the stability of the cold material asphalt layer is improved. Therefore, the supporting strength of the cold material asphalt layer can be effectively improved, and the possibility that the cold material asphalt layer sinks is reduced.

Description

Technical Field

[0001] The present application relates to the field of traffic, and in particular to a functional composite structural restoration layer used for asphalt pavement maintenance. Background Art

[0002] Asphalt pavement is a variety of road surfaces formed by spreading and rolling asphalt concrete. Asphalt concrete is a mixture of asphalt materials with a certain viscosity and appropriate amount and mineral aggregates with a certain grade, which are formed after sufficient mixing. Asphalt concrete, as an asphalt pavement material, must withstand the repeated effects of moving vehicle loads and the long-term influence of environmental factors during use. Therefore, in addition to having a certain bearing capacity, asphalt concrete must also have good durability to resist the effects of natural factors.

[0003] During the use of asphalt pavement, when the number of vehicles and traffic volume on the asphalt pavement exceeds the bearing capacity of the asphalt pavement, the asphalt pavement may sink and the asphalt layer may fall off due to wear or pressure. In order to avoid danger due to road conditions when driving on the pavement, road maintenance personnel are required to repair the damaged asphalt pavement. The general maintenance process is to cut the damaged area, cut off the surface asphalt concrete, and then re-lay a layer of concrete in the area where the asphalt concrete was cut off.

[0004] When repairing asphalt pavement, the surface asphalt concrete is simply cut and repaved. When the damage to the asphalt road is caused by the sinking of the structure supporting the asphalt concrete, which leads to damage to the asphalt pavement, after repaving the asphalt concrete, there is a possibility that the asphalt concrete will sink during use. Summary of the invention

[0005] The purpose of the present application is to solve the problem proposed in the above-mentioned background technology that when repairing asphalt pavement, the surface asphalt concrete is simply cut and repaved. When the damage to the asphalt road is caused by the sinking of the structure used to support the asphalt concrete, resulting in damage to the asphalt pavement, after the asphalt concrete is repaved, the asphalt concrete may still sink during use. The present application provides a functional combined structural restoration layer for asphalt pavement repair.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: A functional composite structural restoration layer used for asphalt pavement maintenance comprises a base layer, a highway pavement is laid on the base layer, a maintenance groove is opened on the highway pavement, the maintenance groove runs through the highway pavement, a cold material asphalt layer is arranged in the maintenance groove, a stabilizing support mechanism is arranged between the cold material asphalt layer and the base layer, and a pressure dispersing mechanism is arranged between the stabilizing support mechanism and the base layer.

[0007] By adopting the above technical scheme, a pressure distribution layer is laid in the maintenance groove, and after the pressure distribution layer is laid, a stable support mechanism is laid on the pressure distribution layer. After the stable support mechanism is laid, LB-10 cold material asphalt is poured on the stable support mechanism, the cold material asphalt is spread out, and then the cold asphalt is flattened to form a cold material asphalt layer, so that the cold material asphalt layer is flush with the road surface, thereby effectively improving the supporting strength of the cold material asphalt layer and reducing the possibility of the cold material asphalt layer sinking. At the same time, under the action of the pressure distribution mechanism, the pressure can be dispersed, further reducing the possibility of the cold material asphalt layer sinking, and at the same time improving the strength of the stable support mechanism.

[0008] Furthermore, the stable support mechanism includes a fine crushed stone layer arranged in the maintenance groove, a cement stabilized crushed stone layer is laid on the fine crushed stone layer, a liquefied asphalt layer is laid on the cement stabilized crushed stone layer, the cold material asphalt layer is laid on the liquefied asphalt layer, and crushed stone restraint nets are laid on both the upper and lower surfaces of the fine crushed stone layer.

[0009] By adopting the above technical solution, when the cold material asphalt layer is under pressure, the cement-stabilized crushed stone layer provides stable support for the cold material asphalt layer, and then the pressure is transmitted to the entire fine crushed stone layer. At the same time, the crushed stone restraining net restricts the fine crushed stone, thereby dispersing the pressure of the cold material asphalt layer to the entire fine crushed stone layer, reducing the possibility of sinking at the compressed position of the cold material asphalt layer.

[0010] Furthermore, a glass fiber grid is laid on the liquefied asphalt layer, and the glass fiber grid is located between the cold material asphalt layer and the liquefied asphalt layer.

[0011] By adopting the above technical solution, after the liquefied asphalt layer is laid, the fiberglass grid is laid on the liquid asphalt layer, and then the cold material asphalt layer is laid, thereby improving the integrity of the cold material asphalt and reducing the possibility of cracking of the cold material asphalt layer.

[0012] Furthermore, the inner walls of the maintenance grooves are all provided with a rough surface.

[0013] By adopting the above technical scheme, when laying the cold asphalt layer, the edge of the cold asphalt layer collides with the rough surface, and when laying the fine crushed stone layer, the edge of the fine crushed stone layer collides with the rough surface, thereby improving the contact stability between the cold asphalt layer and the fine crushed stone layer and the inner wall of the maintenance groove when laying.

[0014] Furthermore, the pressure dispersion mechanism includes a coarse crushed stone layer arranged in the maintenance groove, the coarse crushed stone layer is laid on the base layer, support blocks are arranged on the coarse crushed stone layer, pressure dispersion blocks are arranged on the edges of the support blocks, inclined surfaces are provided on the support blocks and the pressure dispersion blocks, and the inclined surfaces are in conflict with each other, the side of the pressure dispersion block away from the inclined surface is embedded in the inner wall of the maintenance groove, and the crushed stone restraining net is laid on the support blocks.

[0015] By adopting the above technical solution, after the pressure passes through the fine crushed stone, the pressure is squeezed on the support block, and the support block squeezes the coarse crushed stone layer. The coarse crushed stone layer further disperses the pressure. At the same time, the inclined surface of the support block squeezes the inclined surface of the pressure dispersion block, allowing the pressure dispersion block to disperse the compressed pressure net maintenance groove obliquely downward, thereby further reducing the possibility of direct transmission of pressure to the base layer for a long time, causing the base layer to sink with the cold asphalt layer.

[0016] Furthermore, four connecting rods symmetrical in pairs are fixed on the support block, and the connecting rods penetrate the fine gravel layer, the gravel restraining net, the liquefied asphalt layer, and the fiberglass grille. One end of the connecting rod away from the support block is threadedly connected to an extrusion plate, and the extrusion plate conflicts with the fiberglass grille.

[0017] By adopting the above technical solution, when the support block is under pressure, the support block drives the connecting rod, and the connecting rod drives the extrusion plate, so that the extrusion plate further improves the stability of the fiberglass grille, thereby improving the stability of the fiberglass grille and further improving the stability of the laid cold material asphalt layer.

[0018] Furthermore, a protective head is provided at one end of the connecting rod away from the supporting block, the protective head is threadedly connected to the connecting rod, and the protective head is semicircular.

[0019] By adopting the above technical solution, a protective head is screwed onto the connecting rod before laying the cold asphalt layer, and the cold asphalt layer wraps the protective head, thereby reducing the possibility of the connecting rod extending out of the cold asphalt layer and damaging the road surface.

[0020] Furthermore, four blocking plates symmetrical in pairs are arranged in the maintenance groove, the blocking plates are embedded in the inner wall of the maintenance groove, and the four blocking plates are located on four sides of the coarse gravel layer.

[0021] By adopting the above technical solution, when laying the coarse crushed stone layer in the maintenance groove, a blocking plate is first placed in the maintenance groove, and the blocking plate is located at the edge of the coarse crushed stone layer, thereby further improving the stability of the coarse crushed stone layer.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. The present application cuts a maintenance groove on the road surface, allows the maintenance groove to run through the road surface, and then lays a coarse crushed stone layer, then opens a groove on the inner wall of the maintenance groove for placing a pressure dispersion block, and then places the pressure dispersion block in the maintenance groove, and then puts a support block in the maintenance groove, allows the inclined surface on the support block to abut against the inclined surface of the pressure dispersion block, and at the same time allows the support block to abut against the coarse crushed stone layer, and then lays a crushed stone restraint net on the support block, and then lays a fine crushed stone layer, and then lays another layer of crushed stone restraint net, and then pours a cement stabilized crushed stone layer on the crushed stone restraint net, and after the cement stabilized crushed stone layer is stabilized, a layer of liquefied asphalt is applied on the cement stabilized crushed stone layer to form a liquefied asphalt layer, and then a fiberglass grille is laid on the liquid asphalt layer, and then an extrusion plate is screwed on the connecting rod where the fiberglass grille is exposed, and the extrusion plate is abutted against the fiberglass grille, and then cold asphalt is applied. During the laying of the layer, when the cold asphalt layer is under pressure, the pressure is transferred to the cement stabilized gravel layer, and the cement gravel stabilization layer stably supports the cold asphalt layer, and then the pressure is transferred to the entire fine gravel layer. At the same time, the gravel restraining net restricts the fine gravel, and then the fine gravel layer transfers the pressure to the support block. When the support block is under pressure, the support block drives the connecting rod to allow the extrusion plate to further improve the stability of the fiberglass grid. At the same time, the support block squeezes the coarse gravel layer, and the coarse gravel layer further disperses the pressure. At the same time, the inclined surface of the support block squeezes the inclined surface of the pressure dispersion block, so that the pressure dispersion block disperses the compressed pressure at the oblique lower part of the pressure net maintenance groove, thereby effectively improving the supporting strength of the cold asphalt layer and reducing the possibility of the cold asphalt layer sinking. At the same time, under the action of the support block and the pressure dispersion block, the pressure can be dispersed to further reduce the possibility of the cold asphalt layer sinking.

[0023] 2. The present application achieves the purpose of reducing the possibility of the connecting rod extending out of the cold asphalt layer and damaging the road surface by screwing a protective head onto the connecting rod before laying the cold asphalt layer. When the cold asphalt layer is laid, the cold asphalt layer wraps the protective head.

[0024] 3. In the present application, when laying the coarse crushed stone layer in the maintenance groove, a blocking plate is first placed in the maintenance groove, and the blocking plate is embedded in the inner wall of the maintenance groove. When laying the coarse crushed stone layer, the blocking plate is located at the edge of the coarse crushed stone layer, thereby achieving the purpose of further improving the stability of the coarse crushed stone layer.

[0025] 4. In the present application, after the maintenance groove on the highway pavement is excavated, evenly distributed grooves are opened on the inner wall of the maintenance groove, so that these grooves form a rough surface. When the cold material asphalt layer is laid, the edge of the cold material asphalt layer collides with the rough surface, and when the fine crushed stone layer is laid, the edge of the fine crushed stone layer collides with the rough surface, thereby achieving the purpose of improving the stability of the collision between the cold material asphalt layer and the fine crushed stone layer and the inner wall of the maintenance groove when laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the first three-dimensional structure of the functional combination structure recovery layer in this application; Figure 2 is a cross-sectional view of the functional combination structure recovery layer in the present application; Figure 3 It is the first exploded view of the functional combination structure recovery layer in this application; Figure 4 It is the second exploded view of the functional combination structure recovery layer in this application; Figure 5 This application Figure 4 Enlarged schematic diagram at point A in the middle.

[0027] Description of reference numerals: 1. Highway pavement; 2. Cold material asphalt layer; 3. Stable support mechanism; 31. Fine crushed stone layer; 32. Cement stabilized crushed stone layer; 33. Liquefied asphalt layer; 34. Crushed stone restraining net; 35. Fiberglass grid; 36. Rough surface; 4. Pressure dispersion mechanism; 41. Coarse crushed stone layer; 42. Support block; 43. Pressure dispersion block; 44. Connecting rod; 45. Extrusion plate; 46. Protective head; 47. Blocking plate; 5. Base layer. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 —5 Further details of this application are provided.

[0029] The embodiment of the present application discloses a functional combined structural restoration layer for use in asphalt pavement repair.

[0030] Reference Figure 1 , Figure 2 and Figure 3 A functional composite structural restoration layer used for asphalt pavement maintenance includes a base layer 5, a highway pavement 1 is paved on the base layer 5, a maintenance groove is opened on the highway pavement 1, the maintenance groove runs through the highway pavement 1, a cold material asphalt layer 2 is arranged in the maintenance groove, a stabilizing support mechanism 3 is arranged between the cold material asphalt layer 2 and the base layer 5, and a pressure dispersion mechanism 4 is arranged between the stabilizing support mechanism 3 and the base layer 5.

[0031] When the asphalt road is damaged, first determine the damage range of the asphalt road surface 1, then cut a maintenance groove on the road surface 1, control the depth of the maintenance groove to expose the compacted soil layer as the base layer 5, then lay a pressure distribution layer in the maintenance groove, after the pressure distribution layer is laid, lay a stabilizing support mechanism 3 on the pressure distribution layer, after the stabilizing support mechanism 3 is laid, pour LB-10 cold material asphalt on the stabilizing support mechanism 3, spread the cold material asphalt, and then flatten the asphalt cold material to form a cold material asphalt layer 2, so that the cold material asphalt layer 2 is flush with the road surface 1, and when a heavy vehicle passes by, the stabilizing support mechanism 3 will stabilize the cold material asphalt. The green layer 2 is supported to reduce the possibility of the cold material asphalt layer 2 sinking due to excessive pressure. At the same time, the pressure is transmitted from the stable support mechanism 3 to the pressure dispersion mechanism 4. The pressure dispersion mechanism 4 can disperse the pressure while transmitting the pressure to the base layer 5. By utilizing the stable support mechanism 3 to support the cold material asphalt layer 2, the pressure dispersion mechanism 4 can disperse the pressure, thereby effectively improving the support strength of the cold material asphalt layer 2 and reducing the possibility of the cold material asphalt layer 2 sinking. At the same time, under the action of the pressure dispersion mechanism 4, the pressure can be dispersed, further reducing the possibility of the cold material asphalt layer 2 sinking, while improving the strength of the stable support mechanism 3.

[0032] Reference Figure 2 , Figure 3 and Figure 4 The stable support mechanism 3 includes a fine crushed stone layer 31 arranged in the maintenance groove, a cement stabilized crushed stone layer 32 is laid on the fine crushed stone layer 31, a liquefied asphalt layer 33 is laid on the cement stabilized crushed stone layer 32, the cold material asphalt layer 2 is laid on the liquefied asphalt layer 33, and crushed stone restraining nets 34 are laid on both the upper and lower surfaces of the fine crushed stone layer 31.

[0033] After the pressure dispersion mechanism 4 is laid in the maintenance groove, a layer of crushed stone restraining net 34 is laid on the pressure dispersion mechanism 4, and then a layer of fine crushed stone is laid on the crushed stone restraining net 34 to form a fine crushed stone layer 31, and then another layer of crushed stone restraining net 34 is laid on the fine crushed stone layer 31, and then a cement stabilized crushed stone layer 32 is poured on the crushed stone restraining net 34. The cement stabilized crushed stone layer 32 is made of a mixture of cement and crushed stone. After the cement stabilized crushed stone layer 32 is stabilized, a layer of liquefied asphalt is coated on the cement stabilized crushed stone layer 32 to form a liquefied asphalt layer 33. Then, the cold material asphalt layer 2 is laid on the liquefied asphalt layer 33. When the cold material asphalt layer 2 is under pressure, the cement stabilized gravel layer 32 provides stable support for the cold material asphalt layer 2, and then the pressure is transmitted to the entire fine gravel layer 31, and the gravel restraining net 34 restricts the fine gravel. By utilizing the cement stabilized gravel layer 32 to transmit the pressure to the entire fine gravel layer 31, and the gravel restraining net 34 restricts the fine gravel, the pressure on the cold material asphalt layer 2 can be dispersed to the entire fine gravel layer 31, thereby reducing the possibility of the cold material asphalt layer 2 sinking at the compressed position.

[0034] Reference Figure 3 and Figure 4 A glass fiber grid 35 is laid on the liquefied asphalt layer 33 , and the glass fiber grid 35 is located between the cold material asphalt layer 2 and the liquefied asphalt layer 33 .

[0035] After the liquefied asphalt layer 33 is laid, the glass fiber grid 35 is laid on the liquid asphalt layer, and then the cold material asphalt layer 2 is laid. When laying the cold material asphalt layer 2, the glass fiber grid 35 is embedded in the cold material asphalt layer 2. By embedding the glass fiber grid 35 in the cold material asphalt layer 2, the integrity of the cold material asphalt can be improved and the possibility of cracking of the cold material asphalt layer 2 can be reduced.

[0036] Reference Figure 3 and Figure 4 , the inner wall of the maintenance groove is provided with a rough surface 36. After the maintenance groove on the highway pavement 1 is excavated, evenly distributed grooves are provided on the inner wall of the maintenance groove, so that these grooves form the rough surface 36. When the cold material asphalt layer 2 is laid, the edge of the cold material asphalt layer 2 collides with the rough surface 36, and when the fine crushed stone layer 31 is laid, the edge of the fine crushed stone layer 31 collides with the rough surface 36. By providing the grooves on the inner wall of the maintenance groove to form the rough surface 36, the stability of the collision between the cold material asphalt layer 2 and the fine crushed stone layer 31 and the inner wall of the maintenance groove can be improved when laying the cold material asphalt layer 2 and the fine crushed stone layer 31.

[0037] Reference Figure 2 , Figure 3 and Figure 4 The pressure dispersion mechanism 4 includes a coarse crushed stone layer 41 arranged in the maintenance groove, the coarse crushed stone layer 41 is laid on the base layer 5, a support block 42 is arranged on the coarse crushed stone layer 41, and pressure dispersion blocks 43 are arranged on the edges of the support blocks 42. Inclined surfaces are provided on the support blocks 42 and the pressure dispersion blocks 43, and the inclined surfaces are in conflict with each other. The side of the pressure dispersion block 43 away from the inclined surface is embedded in the inner wall of the maintenance groove, and the crushed stone restraining net 34 is laid on the support blocks 42.

[0038] After the maintenance groove is opened and dug, a coarse crushed stone layer 41 is first laid in the maintenance groove, and then a groove for placing the pressure dispersion block 43 is opened on the inner wall of the maintenance groove, and then the pressure dispersion block 43 is placed in the maintenance groove, and then the support block 42 is placed in the maintenance groove, so that the inclined surface of the support block 42 is against the inclined surface of the pressure dispersion block 43, and at the same time, the support block 42 is against the coarse crushed stone layer 41, and then the crushed stone restraint net 34 is laid on the support block 42, and then the fine crushed stone layer 31 is laid. When the pressure passes through the fine crushed stone, the pressure is squeezed on the support block 42, and the support The support block 42 squeezes the coarse crushed stone layer 41, and the coarse crushed stone layer 41 further disperses the pressure. At the same time, the inclined surface of the support block 42 squeezes the inclined surface of the pressure dispersion block 43, so that the pressure dispersion block 43 disperses the compressed pressure obliquely downward of the maintenance groove. When squeezing the support block 42, the coarse crushed stone layer 41 can further disperse the pressure it receives, and at the same time, the pressure dispersion block 43 can be used to disperse the pressure outside the maintenance groove, thereby further reducing the possibility that the pressure is directly transmitted to the base layer 5 for a long time, causing the base layer 5 to sink with the cold asphalt layer 2.

[0039] Reference Figure 3 , Figure 4 and Figure 5 Four connecting rods 44 are fixed on the support block 42 in pairs, and the connecting rods 44 penetrate the fine gravel layer 31, the gravel restraining net 34, the liquefied asphalt layer 33, and the fiberglass grid 35. One end of the connecting rod 44 away from the support block 42 is threadedly connected with an extrusion plate 45, and the extrusion plate 45 conflicts with the fiberglass grid 35.

[0040] When placing the support block 42, a connecting rod 44 is fixed on the support block 42. When laying the fine gravel layer 31, the gravel restraining net 34, the liquefied asphalt layer 33 and the glass fiber grille 35, the connecting rod 44 is penetrated one by one. When the glass fiber grille 35 is laid, an extrusion plate 45 is directly threadedly connected to the connecting rod 44 to squeeze and resist the glass fiber grille 35 so that the glass fiber grille 35 is close to the liquefied asphalt layer 33. When the support block 42 is under pressure, the support block 42 drives the connecting rod 44, and the connecting rod 44 drives the extrusion plate 45, so that the extrusion plate 45 further improves the stability of the glass fiber grille 35. When the support block 42 is under pressure, the support block 42 drives the connecting rod 44 and the extrusion plate 45, and the extrusion plate 45 further extrude the glass fiber grille 35, thereby improving the stability of the glass fiber grille 35 and further improving the stability of the laid cold material asphalt layer 2.

[0041] Reference Figure 4 and Figure 5A protective head 46 is provided at one end of the connecting rod 44 away from the supporting block 42. The protective head 46 is threadedly connected to the connecting rod 44 and is semicircular. Before laying the cold material asphalt layer 2, the protective head 46 is screwed onto the connecting rod 44. When laying the cold material asphalt layer 2, the cold material asphalt layer 2 wraps the protective head 46. By fixing a protective head 46 on the connecting rod 44, the possibility of the connecting rod 44 extending out of the cold material asphalt layer 2 and damaging the road surface can be reduced.

[0042] Reference Figure 3 and Figure 4 Four blocking plates 47 are arranged in pairs in the maintenance groove, and the blocking plates 47 are embedded in the inner wall of the maintenance groove. The four blocking plates 47 are located at the four sides of the coarse crushed stone layer 41. When the coarse crushed stone layer 41 is laid in the maintenance groove, the blocking plates 47 are first placed in the maintenance groove, and the blocking plates 47 are embedded in the inner wall of the maintenance groove. When the coarse crushed stone layer 41 is laid, the blocking plates 47 are located at the edge of the coarse crushed stone layer 41. By using the blocking plates 47 to support the edge of the coarse crushed stone layer 41, the stability of the coarse crushed stone layer 41 can be further improved.

[0043] Working principle: When the asphalt road is damaged, first determine the damage range of the asphalt road surface 1, then cut a maintenance groove on the road surface 1, first place a blocking plate 47 in the maintenance groove, let the blocking plate 47 be embedded in the inner wall of the maintenance groove, then lay a coarse crushed stone layer 41, and then open a groove on the inner wall of the maintenance groove to place the pressure dispersion block 43, and then put the pressure dispersion block 43 into the maintenance groove, and then put the support block 42 into the maintenance groove, let the inclined surface of the support block 42 abut against the inclined surface of the pressure dispersion block 43, and at the same time let the support block 42 abut against the coarse crushed stone layer 41, and then lay a crushed stone restraining net 34 on the support block 42, Then lay a fine crushed stone layer 31, and then lay a layer of crushed stone restraining net 34, and then pour a cement stabilized crushed stone layer 32 on the crushed stone restraining net 34. The cement stabilized crushed stone layer 32 is made of a mixture of cement and crushed stone. After the cement stabilized crushed stone layer 32 is stabilized, a layer of liquefied asphalt is coated on the cement stabilized crushed stone layer 32 to form a liquefied asphalt layer 33. Lay a glass fiber grid 35 on the liquid asphalt layer, and then screw an extrusion plate 45 on the connecting rod 44 that exposes the glass fiber grid 35, so that the extrusion plate 45 is in contact with the glass fiber grid 35, and then lay the cold material asphalt layer 2. When laying the cold material asphalt layer 2, the glass fiber grid 35 is embedded in the cold material asphalt layer 2.

[0044] When heavy vehicles pass by, the cold asphalt layer 2 transfers pressure to the cement stabilized gravel layer 32, the cement gravel stabilization layer stably supports the cold asphalt layer 2, and then the pressure is transferred to the entire fine gravel layer 31, and at the same time the gravel restraining net 34 restricts the fine gravel, and then the fine gravel layer 31 transfers the pressure to the support block 42, when the support block 42 is under pressure, the support block 42 drives the connecting rod 44, and the connecting rod 44 drives the extrusion plate 45, so that the extrusion plate 45 further improves the stability of the fiberglass grid 35, and at the same time the support block 42 squeezes the coarse gravel layer 41, and the coarse gravel layer 41 further disperses the pressure, and at the same time the inclined surface of the support block 42 squeezes the inclined surface of the pressure dispersion block 43, so that the pressure dispersion block 43 disperses the compressed pressure at the oblique lower part of the pressure net maintenance groove.

Claims

1. A functional composite structural restoration layer for asphalt pavement maintenance, comprising a base layer (5), characterized in that: A road surface (1) is paved on the base layer (5), a maintenance groove is opened on the road surface (1), the maintenance groove runs through the road surface (1), a cold material asphalt layer (2) is arranged in the maintenance groove, a stabilizing support mechanism (3) is arranged between the cold material asphalt layer (2) and the base layer (5), and a pressure dispersing mechanism (4) is arranged between the stabilizing support mechanism (3) and the base layer (5).

2. The functional composite structural restoration layer for asphalt pavement maintenance according to claim 1, characterized in that: The stabilizing support mechanism (3) comprises a fine crushed stone layer (31) arranged in a maintenance groove, a cement-stabilized crushed stone layer (32) being laid on the fine crushed stone layer (31), a liquefied asphalt layer (33) being laid on the cement-stabilized crushed stone layer (32), the cold material asphalt layer (2) being laid on the liquefied asphalt layer (33), and crushed stone restraining nets (34) being laid on both the upper and lower surfaces of the fine crushed stone layer (31).

3. The functional composite structural restoration layer for asphalt pavement maintenance according to claim 2, characterized in that: A glass fiber grid (35) is laid on the liquefied asphalt layer (33), and the glass fiber grid (35) is located between the cold material asphalt layer (2) and the liquefied asphalt layer (33).

4. The functional composite structural restoration layer for asphalt pavement maintenance according to claim 3, characterized in that: The inner walls of the maintenance grooves are all provided with a rough surface (36).

5. The functional composite structural restoration layer for asphalt pavement maintenance according to claim 3, characterized in that: The pressure dispersion mechanism (4) comprises a coarse crushed stone layer (41) arranged in the maintenance groove, the coarse crushed stone layer (41) is laid on the base layer (5), a support block (42) is arranged on the coarse crushed stone layer (41), and pressure dispersion blocks (43) are arranged on the edges of the support blocks (42), and inclined surfaces are provided on the support blocks (42) and the pressure dispersion blocks (43), and the inclined surfaces are mutually abutting, and the side of the pressure dispersion block (43) away from the inclined surface is embedded in the inner wall of the maintenance groove, and the crushed stone restraining net (34) is laid on the support blocks (42).

6. The functional composite structural restoration layer for asphalt pavement maintenance according to claim 5, characterized in that: Four connecting rods (44) are fixed to the support block (42) in pairs, and the connecting rods (44) penetrate the fine gravel layer (31), the gravel restraining net (34), the liquefied asphalt layer (33), and the glass fiber grille (35). One end of the connecting rod (44) away from the support block (42) is threadedly connected to an extrusion plate (45), and the extrusion plate (45) is in conflict with the glass fiber grille (35).

7. The functional composite structural restoration layer for asphalt pavement maintenance according to claim 6, characterized in that: A protective head (46) is provided at one end of the connecting rod (44) away from the supporting block (42); the protective head (46) is threadedly connected to the connecting rod (44); and the protective head (46) is semicircular.

8. The functional composite structural restoration layer for asphalt pavement maintenance according to claim 5, characterized in that: Four blocking plates (47) are arranged in pairs in a symmetrical manner in the maintenance groove. The blocking plates (47) are embedded in the inner wall of the maintenance groove. The four blocking plates (47) are located on four sides of the coarse gravel layer (41).

Images