New and old asphalt pavement lap joint structure

Abstract

The utility model relates to the technical field of road construction, and discloses a new and old asphalt pavement lap joint structure which comprises an old pavement, a plurality of hoops distributed at equal intervals are installed on the upper surface of the old pavement, a new pavement subbase layer is arranged on the left side of the old pavement, and a sandy soil layer is arranged on the upper surface of the new pavement subbase layer. And a new pavement roadbed is arranged on the upper surface of the sandy soil layer. According to the lap joint structure for the new and old asphalt pavements, the new pavement and the old pavement can be kept in close contact when the new pavement is settled through the cooperation of the mounting hoops and the clamping rods, and the new pavement and the old pavement can be locked through the deformation of the clamping rods, so that the new pavement and the old pavement can be stably connected; by arranging the waterproof layer, water can be effectively prevented from permeating into a road base layer, occurrence of base layer diseases is reduced, meanwhile, the slurry seal layer has good waterproof and anti-seepage performance, the road surface can be effectively prevented from being eroded by water, and therefore the service life of a road is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of road construction, in particular to a new and old asphalt pavement lapping structure. BACKGROUND

[0002] The municipal road construction refers to the process of constructing and maintaining various road facilities and related supporting facilities in the urban traffic system through planning, design, construction and other work in the urban planning and development process, so as to optimize the urban road traffic structure, improve the urban traffic service quality and promote the sustainable development of urban economy and society.

[0003] The existing patent (announcement number: CN220166579U) discloses a highway new and old pavement structure layer splicing structure, which comprises an old highway: a repair groove is arranged between the old highway, the inner cavity of the repair groove is arranged to be wide at the top and narrow at the bottom, a reinforced concrete connecting plate is arranged in the inner cavity of the repair groove, an embedded fixing block is embeddedly arranged in the inner cavity of the old highway, the reinforced concrete connecting plate is rotationally connected to the right side of the embedded fixing block, and a concrete base layer is arranged on the top of the reinforced concrete connecting plate. The reinforced concrete connecting plate is arranged in the inner cavity of the repair groove, so that the settlement is relieved when the inner cavity of the repair groove sinks, thereby avoiding the car jumping, the cement stabilized gravel layer, the gravel layer and the engineering blasting stone slag layer can all permeate water, so that the water flow can slow down the settlement of the repair groove base filler, the settlement of the new and old pavement connection can be slowed down, the settlement forms a gentle slope, and the bumping feeling when the car drives through is reduced.

[0004] The above-mentioned document can slow down the settlement of the repair groove base filler caused by water flow and reduce the bumping feeling when the car drives, but it is not suitable for road widening and overall road maintenance, the locking ability is poor, the connection between the new and old road bases is prone to cracking, and the overall practicability needs to be improved. Practical new type

[0005] In view of the defects of the prior art, the application provides a new and old asphalt pavement lapping structure, which has the advantages of improving practicability and solving the problems in the background art.

[0006] To achieve the above object, the present application provides the following technical scheme: A new and old asphalt pavement lap joint structure, including old pavement, the upper surface of the old pavement is provided with a plurality of equally distributed clamps, the left side of the old pavement is provided with a new pavement bottom base layer, the upper surface of the new pavement bottom base layer is provided with a sand layer, the upper surface of the sand layer is provided with a new pavement roadbed, the upper surface of the new pavement roadbed is provided with a waterproof layer, the upper surface of the waterproof layer is provided with a first broken stone layer, the first broken stone layer is provided with a dilute slurry layer between the old pavement, the upper surface of the first broken stone layer is provided with a plurality of clamping rods, the clamping rods pass through the clamps, the upper surface of the first broken stone layer is provided with a coarse broken stone layer, and the upper surface of the coarse broken stone layer is provided with a new asphalt pavement.

[0007] Through the above scheme, the lap joint of the new and old pavements is polished and bonded together using an adhesive, and the new and old pavements are connected together in a stepped manner, which is more connected and more compact.

[0008] The new pavement bottom base layer is made of gravel, which is made of natural stone and has high durability, can withstand large pressure and weight, and is not easy to be damaged, and the gravel also has high stability, can maintain long-term structural stability, and ensures the stability and durability of the pavement.

[0009] The new pavement roadbed is made of cement stabilized soil, which has high mechanical strength, can withstand heavy load of vehicles and pedestrians, is not easy to produce cracks and pits, and also has good overall stability, is not easy to deform and settle, and can keep the pavement flat and stable.

[0010] The waterproof layer is made of asphalt waterproof material, which has a compact molecular structure and good water resistance, can effectively prevent water from penetrating into the pavement base layer, and thus protect the pavement structure from water erosion.

[0011] The dilute slurry layer is made of emulsified asphalt, which can form a dense surface layer, effectively prevent rainwater or snowwater from penetrating into the pavement base layer, and thus protect the pavement structure from water damage.

[0012] The clamping rod passes through the clamp, and the installation of the clamping rod and the clamp can make the force acting on the clamping rod when the new asphalt pavement is pressed, so that the new pavement and the old pavement can be stably connected.

[0013] The new asphalt pavement is higher than the old pavement, and the newly paved asphalt pavement will be affected by vehicle load and natural environment in the initial stage, and will produce a certain degree of settlement and deformation, so that the new pavement and the old pavement remain level, thereby improving the levelness between the new pavement and the old pavement.

[0014] The old pavement left side is provided with a guard plate, the guard plate is in contact with a new pavement bottom base layer, a sand layer, a new pavement roadbed, a waterproof layer, a first broken stone layer, a coarse broken stone layer and a new asphalt pavement, the installation of the guard plate can provide stable force for the new pavement, and deformation of the new pavement extending to the road edge after being rolled is avoided.

[0015] Compared with the prior art, the technical scheme has the following beneficial effects:

[0016] The new and old asphalt pavement overlapping structure can keep the new pavement and the old pavement in close contact when the new pavement is settled, and the new pavement and the old pavement can be locked by the deformation of the clamping rod, so that they are stably connected, the waterproof layer can effectively prevent water from penetrating into the road base layer, reduce the occurrence of base disease, and the slurry seal layer has good waterproof and anti-permeability, which can effectively prevent the pavement from being eroded by water, thereby prolonging the service life of the road. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a sectional view of the overall structure of the application;

[0018] Figure 2 It is a schematic diagram of the overall structure of the application;

[0019] Figure 3 It is a schematic diagram of the first broken stone layer structure of the application;

[0020] Figure 4 It is a schematic diagram of the clamp structure of the application.

[0021] In the drawing:

[0022] 1, old pavement; 2, clamp; 3, new pavement bottom base layer; 4, sand layer; 5, new pavement roadbed; 6, waterproof layer; 7, first broken stone layer; 8, slurry layer; 9, clamping rod; 10, coarse broken stone layer; 11, new asphalt pavement; 12, guard plate. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0024] Please refer to Figure 1 , Figure 2 and Figure 3The new and old asphalt pavement lap joint structure in the embodiment comprises an old pavement 1, a plurality of clamps 2 are installed on the upper surface of the old pavement 1 in equal distance distribution, a new pavement bottom base layer 3 is arranged on the left side of the old pavement 1, a sand soil layer 4 is arranged on the upper surface of the new pavement bottom base layer 3, a new pavement roadbed 5 is arranged on the upper surface of the sand soil layer 4, a waterproof layer 6 is arranged on the upper surface of the new pavement roadbed 5, a first broken stone layer 7 is arranged on the upper surface of the waterproof layer 6, a slurry layer 8 is arranged between the first broken stone layer 7 and the old pavement 1, a plurality of clamping rods 9 are inserted into the upper surface of the first broken stone layer 7, the plurality of clamping rods 9 pass through the clamps 2, a coarse broken stone layer 10 is arranged on the upper surface of the first broken stone layer 7, a new asphalt pavement 11 is arranged on the upper surface of the coarse broken stone layer 10, the lap joints of the new and old pavements 1 are all polished and bonded together by using an adhesive, meanwhile, the new and old pavements 1 are all in a ladder type clamped together, the connection is stronger and more compact, when the new pavement is settled, the new pavement and the old pavement 1 can keep close contact through the cooperation of the clamps 2 and the clamping rods 9, and the new pavement and the old pavement 1 can be locked through the deformation of the clamping rods 9, so that they can be stably connected, the waterproof layer 6 can effectively prevent water from penetrating into the road base layer, reduce the occurrence of base disease, meanwhile, the slurry seal layer has good waterproof and anti-permeability performance, can effectively prevent the pavement from being eroded by water, thereby prolonging the service life of the road.

[0025] Please refer to Figure 1 , Figure 2 and Figure 4 , the new pavement bottom base layer 3 is made of gravel material, the gravel is made of natural stone, has high durability, can bear large pressure and weight, is not easy to be damaged, meanwhile, the gravel also has strong stability, can maintain long-term structural stability, ensures the stability and durability of the pavement, the new pavement roadbed 5 is made of cement stabilized soil, the cement stabilized soil has high mechanical strength, can bear heavy load of vehicles and pedestrians, is not easy to produce cracks and potholes, meanwhile, the cement stabilized soil also has good overall stability, is not easy to deform and settle, can keep the pavement flat and stable, the waterproof layer 6 is made of asphalt waterproof material, the waterproof layer 6 made of asphalt waterproof material can have a compact molecular structure and good water impermeability, can effectively prevent water from penetrating into the pavement base layer, thereby protecting the pavement structure from water erosion.

[0026] Please refer to Figure 1 , Figure 2 and Figure 3, the emulsified asphalt thin slurry layer 8 can form a dense surface layer, effectively preventing rainwater or snowwater from penetrating into the road base, thereby protecting the road structure from water damage, the clamping rod 9 passes through the clamp 2, and the installation of the clamping rod 9 and the clamp 2 can make the force received by the clamping rod 9 act on the clamp 2 when the new asphalt pavement 11 is subjected to rolling force, so that the new pavement and the old pavement 1 can be stably connected, the new asphalt pavement 11 is higher than the old pavement 1, the newly paved asphalt pavement will be affected by vehicle load and natural environment in the early stage, and will produce a certain degree of settlement and deformation, so that the new pavement and the old pavement 1 remain level, thereby improving the levelness between the new pavement and the old pavement 1, the old pavement 1 is provided with a guard plate 12 on the left side, the guard plate 12 is in contact with the new pavement bottom base layer 3, the sand layer 4, the new pavement roadbed 5, the waterproof layer 6, the first broken stone layer 7, the coarse broken stone layer 10, and the new asphalt pavement 11, and the installation of the guard plate 12 can provide stable force to the new pavement to avoid deformation of the new pavement extending to the road edge after rolling.

[0027] The new and old asphalt pavement overlapping structure in the embodiment can keep the new pavement and the old pavement 1 in close contact when the new pavement settles through the cooperation of the installation of the clamp 2 and the clamping rod 9, and can lock the new pavement and the old pavement 1 through the deformation of the clamping rod 9, so that the two can be stably connected, the waterproof layer 6 can effectively prevent water from penetrating into the road base, reduce the occurrence of base diseases, and the thin slurry seal layer has good waterproof and anti-permeability, which can effectively prevent the pavement from being eroded by water, thereby prolonging the service life of the road.

[0028] The working principle of the above embodiment is that when the new and old pavements 1 are overlapped, the overlapping parts of the new and old pavements 1 are polished and bonded together by using an adhesive, and the new and old pavements 1 are in a stepped type clamped together, the connection is stronger, more compact, and the plurality of clamping rods 9 are inserted into the plurality of clamping hoops 2, through the cooperation of the clamping hoops 2 and the clamping rods 9, when the new pavement is settled, the new pavement and the old pavement 1 can keep close contact, and through the deformation of the clamping rod 9, the new pavement and the old pavement 1 can be locked, so that they can be stably connected, the new pavement bottom base layer 3 is made of gravel material and has high durability, can bear large pressure and weight, and is not easy to be damaged, at the same time, the gravel also has strong stability, can maintain long-term structural stability, the new pavement roadbed 5 is made of cement stabilized soil and has high mechanical strength, can bear heavy load of vehicles and pedestrians, and is not easy to produce cracks and potholes, at the same time, the cement stabilized soil also has good overall stability, is not easy to deform and settle, and can keep the pavement flat and stable, through the cooperation of the waterproof layer 6 and the slurry layer 8, a dense surface layer can be formed, rainwater or snow water can be effectively prevented from penetrating into the pavement base layer, so as to protect the pavement structure from water damage, and then the new asphalt pavement 11 is higher than the old pavement 1, can be affected by vehicle load and natural environment in the early stage, and produce a certain degree of settlement and deformation, so that the new pavement and the old pavement 1 keep flat.

[0029] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Additionally, terms such as "plurality" or "a plurality" encompass both the singular and the plural, unless expressly specified otherwise.

[0030] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A new and old asphalt pavement lapping structure, comprising an old pavement (1), characterized in that: The upper surface of the old pavement (1) is provided with a plurality of equally distributed clamps (2), the left side of the old pavement (1) is provided with a new pavement bottom base (3), the upper surface of the new pavement bottom base (3) is provided with a sand soil layer (4), the upper surface of the sand soil layer (4) is provided with a new pavement roadbed (5), the upper surface of the new pavement roadbed (5) is provided with a waterproof layer (6), the upper surface of the waterproof layer (6) is provided with a first broken stone layer (7), the first broken stone layer (7) and the old pavement (1) are provided with a thin slurry layer (8), the upper surface of the first broken stone layer (7) is inserted with a plurality of clamping rods (9), a plurality of clamping rods (9) pass through the clamps (2), the upper surface of the first broken stone layer (7) is provided with a coarse broken stone layer (10), and the upper surface of the coarse broken stone layer (10) is provided with a new asphalt pavement (11).

2. The new and old asphalt pavement lapping structure according to claim 1, characterized in that: The new pavement bottom base (3) is made of gravel material.

3. The new and old asphalt pavement lapping structure according to claim 1, characterized in that: The new pavement roadbed (5) is made of cement stabilized soil.

4. The new and old asphalt pavement lapping structure according to claim 1, characterized in that: The waterproof layer (6) is made of asphalt waterproof material.

5. The new and old asphalt pavement lapping structure according to claim 1, characterized in that: The thin slurry layer (8) is made of emulsified asphalt.

6. The new and old asphalt pavement lapping structure according to claim 1, characterized in that: The clamping rod (9) passes through the clamp (2).

7. The new and old asphalt pavement lapping structure according to claim 1, characterized in that: The new asphalt pavement (11) is higher than the old pavement (1).

8. The new and old asphalt pavement lapping structure according to claim 1, characterized in that: The left side of the old pavement (1) is provided with a guard plate (12), and the guard plate (12) is in contact with the new pavement bottom base (3), the sand soil layer (4), the new pavement roadbed (5), the waterproof layer (6), the first broken stone layer (7), the coarse broken stone layer (10), and the new asphalt pavement (11).

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