Durable connecting pavement structure for quickly repairing bumping at bridge head in highway maintenance engineering

Abstract

The utility model discloses a durable connecting pavement structure for quickly repairing bumping at a bridgehead in highway maintenance engineering, which comprises a roadbed body, the roadbed body is provided with a bridgehead roadbed section, the upper part of the bridgehead roadbed section is provided with a bridgehead bumping repairing area, and the bridgehead bumping repairing area is provided with a pavement connecting structure. The pavement connecting structure comprises a multi-layer pavement structure formed by asphalt concrete layers, a pavement base layer, a roadbed replacement layer and a roadbed leveling layer which are sequentially arranged from top to bottom, the asphalt concrete layers are in lap joint with the two sides of a bridgehead bumping repair area, and first bonding layers are arranged between the asphalt concrete layers and the pavement base layer; the roadbed replacement and filling layer is of a plate-shaped structure formed by splicing a plurality of prefabricated EPS light blocks, a first isolation layer is arranged between the pavement base layer and the roadbed replacement and filling layer, and a second isolation layer is arranged between the roadbed replacement and filling layer and the roadbed leveling layer. The utility model has the beneficial effects that the driving comfort is improved, the sedimentation rate is delayed, the service life is prolonged, and the construction period is short.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a durable connecting pavement structure for quickly repairing a vehicle jumping at a bridge head in a highway maintenance project. Background Art

[0002] A considerable number of highways in my country are built in soft foundation areas. The foundation soil in this area is mainly soft soil. Since soft soil has the characteristics of high natural water content, high organic matter content, high compressibility, poor permeability, and high sensitivity, highways built in soft foundation areas will experience large post-construction settlement, especially the roadbed section at the bridge head, resulting in serious bridge head jumping phenomenon, which has a serious impact on the safety and comfort of highway operation.

[0003] The so-called bridge jumping refers to the serious differential settlement of the roadbed and abutment structures due to the difference in rigidity between the abutment structure and the roadbed structure. When a vehicle passes through the road-bridge transition zone at high speed, it is impacted and causes obvious bumps or even jumps. Bridge jumping not only directly leads to a serious decline in driving safety and comfort, reduces the level of highway services and the public's sense of happiness when traveling, but also forces vehicles to brake and slow down when passing through the bridge jumping section, causing damage and wear to the vehicle components and increased fuel consumption. In addition, high-speed vehicles will produce instantaneous impact loads on the bridge and the backfill section of the abutment, causing damage to the bridgehead slab, abutment, bearings, and expansion joints, seriously affecting their service life, thereby indirectly increasing vehicle operating costs and highway maintenance and repair costs.

[0004] At present, there are two main types of structures for repairing bridgehead bumping in highway maintenance projects. The first is the asphalt surface leveling and overlaying structure, which can quickly repair bridgehead bumping and has a low single repair cost, but the increase in additional stress will further increase the settlement rate after construction, and the repair effect and durability are poor. It cannot fundamentally solve the bridgehead bumping problem, and it still needs to be repaired again in the short term, with poor economic benefits. The second is the foam concrete replacement roadbed structure, which uses foam concrete to replace the original roadbed material. This method can more thoroughly solve the bridgehead bumping problem, but the construction closure period is long, and the foam concrete material requires a certain curing time, which cannot meet the highway operation service requirements.

[0005] Therefore, it is urgent to design a new pavement structure to improve the above technical problems. Summary of the invention

[0006] In order to solve the problem of vehicle jumping at bridge head caused by differential settlement of road-bridge transition section, the utility model provides a durable connecting pavement structure for quickly repairing vehicle jumping at bridge head in highway maintenance projects, which can quickly restore driving comfort in road-bridge transition section, delay subsequent settlement rate, extend service life after maintenance, and has short construction period and little impact on traffic.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A durable connecting pavement structure for quickly repairing a bridgehead bump in a highway maintenance project comprises a roadbed body, characterized in that: the roadbed body has a bridgehead roadbed section overlapped with an abutment structure, a bridgehead bump repair area is provided on the upper part of the bridgehead roadbed section, the bridgehead bump repair area is provided with a roadbed connecting structure, the roadbed connecting structure comprises a multi-layer paving structure formed by an asphalt concrete layer, a pavement base layer, a roadbed replacement layer, and a roadbed leveling layer arranged in sequence from top to bottom, the asphalt concrete layer overlaps both sides of the bridgehead bump repair area, a first bonding layer is arranged between the asphalt concrete layer and the pavement base layer; the roadbed replacement layer is a plate-like structure assembled from a plurality of prefabricated EPS lightweight blocks, a first isolation layer is arranged between the pavement base layer and the roadbed replacement layer, and a second isolation layer is arranged between the roadbed replacement layer and the roadbed leveling layer.

[0009] Preferably, the asphalt concrete layer includes an upper pavement layer, a middle pavement layer and a lower pavement layer which are arranged in sequence from top to bottom, a second bonding layer is arranged between the upper pavement layer and the middle pavement layer, a third bonding layer is arranged between the middle pavement layer and the lower pavement layer, and the first bonding layer is arranged between the lower pavement layer and the pavement base layer, wherein the upper pavement layer is a fine-grained asphalt concrete layer, the middle pavement layer is a medium-grained asphalt concrete layer, the lower pavement layer is a coarse-grained asphalt concrete layer, the first bonding layer is a hot asphalt gravel seal layer, and the second bonding layer and the third bonding layer are modified emulsified asphalt layers.

[0010] Preferably, the bridge head vehicle bounce repair area is divided into a first repair area and a second repair area along the length direction of the road base body, the first repair area is located between the abutment structure and the second repair area, the durable connecting pavement structure in the first repair area has two layers of roadbed replacement layer, and the durable connecting pavement structure in the second repair area has one layer of roadbed replacement layer.

[0011] Preferably, the pavement base is a plate-like structure assembled from a number of prefabricated reinforced concrete slabs, and the width of the wet joint between two adjacent prefabricated reinforced concrete slabs is 10 cm.

[0012] Preferably, the first isolation layer and the second isolation layer are bamboo-based fiberboard.

[0013] Preferably, the thickness of the upper layer of the pavement is 4 cm, the thickness of the middle layer of the pavement is 6 cm, the thickness of the lower layer of the pavement is 8 cm, the thickness of the pavement base layer is 20-25 cm, the thickness of the roadbed replacement layer is 200-300 cm, and the thickness of the roadbed leveling layer is 10-15 cm.

[0014] Preferably, the bridgehead roadbed section includes the original roadbed, original subbase and original base arranged in sequence from top to bottom, the lower layer of the pavement is overlapped on the original base on both sides of the bridgehead vehicle jump repair area, and a polyester anti-cracking cloth is provided at the overlapping interface between the lower layer of the pavement and the original base.

[0015] Preferably, the thickness of the original base layer is 20 to 25 cm, and the thickness of the original subbase layer is 16 to 20 cm.

[0016] Preferably, the roadbed leveling layer is a graded crushed stone layer.

[0017] Preferably, a guardrail is provided on the road base body.

[0018] Preferably, the abutment structure includes at least one column and a pedestal arranged on the column, one end of the column is arranged in the original roadbed, for supporting the load from the pedestal and transferring the load to the roadbed body; the pedestal is used to support the load from the front wall, including a back wall for retaining soil away from the back and a rear retaining wall for retaining soil laterally, and a telescopic structure is provided on the top of the back wall.

[0019] The utility model also provides a road surface, which is characterized by having the durable connected road surface structure.

[0020] Compared with the closest prior art, the technical solution provided by the utility model has the following excellent effects:

[0021] 1. The prefabricated EPS lightweight block has a small deadweight. While repairing the bridge head jump, it can slow down the post-construction settlement rate to the greatest extent, thereby extending the service life of the road-bridge transition section after repair.

[0022] 2. The construction period is short. When used in highway maintenance projects, it can shorten the construction time to the maximum extent, reduce the adverse impact on the public's travel needs, and have obvious social benefits.

[0023] 3. The materials used for the main structural layers are prefabricated in factories and assembled on site. The construction machinery requirements are low, the construction process is simple, and the operability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional schematic diagram of a durable connecting pavement structure for quickly repairing a vehicle jumping at a bridge head in a highway maintenance project of the utility model, wherein the dotted line at A represents the center line of the road base body.

[0025] Figure 2 The utility model is a schematic longitudinal section diagram of a durable connecting pavement structure for quickly repairing a vehicle jumping at a bridge head in a highway maintenance project.

[0026] In the attached drawings, 1. roadbed body; 11. original roadbed; 12. original subbase; 13. original base; 14. guardrail; 2. abutment structure; 21. column; 22. pedestal; 221. back wall; 222. retaining wall behind the abutment; 23. telescopic structure; 3. pavement connection structure; 31. asphalt concrete layer; 311. pavement upper layer; 312. pavement middle layer; 313. pavement lower layer; 314. second bonding layer; 315. third bonding layer; 32. pavement base; 321. wet joint; 33. roadbed replacement layer; 331. cement mortar; 34. roadbed leveling layer; 35. first bonding layer; 36. first isolation layer; 37. second isolation layer; 4. polyester anti-cracking cloth. DETAILED DESCRIPTION

[0027] The following describes the implementation of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application.

[0028] It should be noted that the process equipment or devices not specifically specified in the following embodiments are all conventional equipment or devices in the art.

[0029] In addition, it should be understood that one or more method steps mentioned in this application do not exclude the existence of other method steps before or after the combination step or the insertion of other method steps between these explicitly mentioned steps, unless otherwise specified; it should also be understood that the combination connection relationship between one or more devices / apparatuses mentioned in this application does not exclude the existence of other devices / apparatuses before or after the combination device / apparatus or the insertion of other devices / apparatuses between these two explicitly mentioned devices / apparatuses, unless otherwise specified. Moreover, unless otherwise specified, the numbering of each method step is only a convenient tool for identifying each method step, and is not intended to limit the order of arrangement of each method step or the scope of implementation of this application. Changes or adjustments in their relative relationships shall also be regarded as the scope of implementation of this application without substantial changes in the technical content.

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] The present application is further described below in conjunction with specific embodiments, but the protection scope of the present application is not limited thereto.

[0035] The utility model discloses a durable connecting pavement structure for quickly repairing a bridgehead bump in a highway maintenance project, comprising a road base body 1, wherein the road base body 1 has a bridgehead roadbed section overlapped with an abutment structure 2, a bridgehead bump repair area is provided on the upper part of the bridgehead roadbed section, and the bridgehead bump repair area is provided with a pavement connecting structure 3, wherein the pavement connecting structure 3 comprises a multi-layer paving structure formed by an asphalt concrete layer 31, a pavement base layer 32, a roadbed replacement layer 33, and a roadbed leveling layer 34 arranged in sequence from top to bottom, wherein the asphalt concrete layer 31 is overlapped on both sides of the bridgehead bump repair area, and a first bonding layer 35 is arranged between the asphalt concrete layer 31 and the pavement base layer 32; the roadbed replacement layer 33 is a plate-like structure assembled from a plurality of prefabricated EPS lightweight blocks, a first isolation layer 36 is arranged between the pavement base layer 32 and the roadbed replacement layer 33, and a second isolation layer 37 is arranged between the roadbed replacement layer 33 and the roadbed leveling layer 34.

[0036] In some embodiments of the utility model, the asphalt concrete layer 31 includes a pavement upper layer 311, a pavement middle layer 312 and a pavement lower layer 313 arranged in sequence from top to bottom, a second bonding layer 314 is arranged between the pavement upper layer 311 and the pavement middle layer 312, a third bonding layer 315 is arranged between the pavement middle layer 312 and the pavement lower layer 313, and the first bonding layer 35 is arranged between the pavement lower layer 313 and the pavement base layer 32, wherein the pavement upper layer 311 is a fine-grained asphalt concrete layer, the pavement middle layer 312 is a medium-grained asphalt concrete layer, the pavement lower layer 313 is a coarse-grained asphalt concrete layer, the first bonding layer 35 is a hot asphalt gravel seal layer, and the second bonding layer 314 and the third bonding layer 315 are modified emulsified asphalt layers.

[0037] In some embodiments of the utility model, the bridge head vehicle bounce repair area is divided into a first repair area and a second repair area along the length direction of the road base body 1, the first repair area is located between the abutment structure and the second repair area, the durable connecting pavement structure in the first repair area has two layers of roadbed replacement layer 33, and the durable connecting pavement structure in the second repair area has one layer of roadbed replacement layer 33.

[0038] In some embodiments of the utility model, the prefabricated EPS lightweight block refers to a lightweight polymer with a certain strength formed by high temperature heating using polystyrene as raw material and a foaming agent as auxiliary agent. The prefabricated EPS lightweight block has a size of 300-600cm in length × 100-150cm in width × 50-100cm in height, a uniform texture, and a density of no more than 30kg / m 3 , strength is not less than 0.6Mpa.

[0039] In some embodiments of the present invention, the pavement base 32 is a plate-like structure assembled from a plurality of prefabricated reinforced concrete slabs, and the width of the wet joint 321 between two adjacent prefabricated reinforced concrete slabs is 10 cm.

[0040] In some embodiments of the present invention, the first isolation layer 36 and the second isolation layer 37 are bamboo-based fiberboards, and the thickness of the bamboo-based fiberboards is 2-3 mm.

[0041] In some embodiments of the present invention, the thickness of the upper pavement layer 311 is 4 cm, the thickness of the middle pavement layer 312 is 6 cm, the thickness of the lower pavement layer 313 is 8 cm, the thickness of the pavement base layer 32 is 20 to 25 cm, the thickness of the roadbed replacement layer 33 is 200 to 300 cm, and the thickness of the roadbed leveling layer 34 is 10 to 15 cm.

[0042] In some embodiments of the utility model, the bridgehead roadbed section includes an original roadbed 11, an original subbase layer 12 and an original base layer 13 arranged in sequence from top to bottom, and the pavement lower layer 313 is overlapped on the original base layer 13 on both sides of the bridgehead vehicle bounce repair area, and a polyester anti-cracking cloth 4 is provided at the overlapping interface between the pavement lower layer 313 and the original base layer.

[0043] In some embodiments of the present invention, the thickness of the original base layer 13 is 20-25 cm, and the thickness of the original base layer 12 is 16-20 cm.

[0044] In some embodiments of the present invention, the roadbed leveling layer 34 is a graded crushed stone layer.

[0045] The utility model also provides a road surface, wherein the abutment structure 2 includes at least one column 21 and a cap 22 arranged on the column, one end of the column is arranged in the original roadbed, for supporting the load from the cap and transferring the load to the roadbed body; the cap is used to support the load from the front wall, including a back wall 221 for retaining the back and a rear retaining wall 222 for retaining the side, the back wall is provided with a telescopic structure 23, and the telescopic structure 23 is a post-cast strip cast between the cap and the roadbed body 1.

[0046] The utility model also provides a road surface having the durable connected road surface structure.

[0047] In some embodiments of the present invention, a guardrail 14 is provided on the road base body 1 .

[0048] In some embodiments of the present invention, the over-excavated parts on both sides of the roadbed replacement layer 33 are filled with cement mortar 331 .

[0049] The road surface construction method described in the utility model comprises the following steps:

[0050] Step 1: Locate and excavate the bridge head jump repair area, and use mechanical excavation to the design elevation + 5 to 10 cm, and then use manual excavation;

[0051] Step 2: 10-15 cm graded crushed stone is laid as the roadbed leveling layer 34 in the bridge head vehicle bounce repair area and compacted. The surface of the roadbed leveling layer 34 is aligned with the transverse slope and longitudinal slope of the road surface body. The graded crushed stone is mixed with coarse aggregate and fine aggregate according to the specified grading, and the maximum nominal particle size is 26.5 mm.

[0052] Step 3: Lay a 2-3 mm bamboo-based fiberboard as a second isolation layer 37 on the roadbed leveling layer 34 to cover the roadbed leveling layer 34 to ensure the integrity of the force;

[0053] Step 4, assemble the prefabricated EPS lightweight blocks piece by piece as the roadbed replacement layer 33, wherein a layer of roadbed replacement layer 3 is laid on the roadbed leveling layer 34 in the first repair area away from the abutment structure, and two layers of roadbed replacement layers are laid on the roadbed leveling layer 34 in the second repair area close to the abutment structure. The assembly construction strives to achieve a tight bite state, the assembly seam width is controlled within 2mm, the horizontal and tilt errors should be adjusted layer by layer, and the over-excavated parts on both sides of the roadbed replacement layer 33 are backfilled with 5% cement mortar;

[0054] Step 4: Lay a 2-3 mm bamboo-based fiberboard as a first isolation layer 36 on the roadbed replacement layer 33 to cover the roadbed replacement layer 33 to ensure the integrity of the force;

[0055] Step 5: Assemble and place prefabricated reinforced concrete RC40 as the road base 32, with a wet joint width of 10 cm between the plates, and backfill with ultra-high performance concrete UHPC; the dimensions of the prefabricated reinforced concrete RC40 are 450-500 cm in length × 150-200 cm in width × 20-25 cm in height, and the long side direction is consistent with the driving direction of the road during assembly and placement, and the 28d compressive strength of the ultra-high performance concrete UHPC should be no less than 120 MPa;

[0056] Step 6: Spread hot asphalt chip seal as the first bonding layer 35. The hot asphalt uses SBS modified asphalt with an asphalt dosage of 1.0-1.3 kg / m 2 The crushed stone is made of 4.75-9.5mm single-size stone, and the amount of crushed stone is 9-10kg / m 2 The hot asphalt chip seal layer refers to a seal layer formed on the underlying layer after the aggregate and asphalt binder are spread, rolled and compacted using special equipment, which plays the role of sealing water and enhancing interlayer bonding;

[0057] Step 7, paving 8 cm of modified AC-25 coarse-grained asphalt concrete as the lower pavement layer 313;

[0058] Step 8: Spray modified emulsified asphalt as the third bonding layer 315, with a dosage of 0.3-0.6 kg / m 2 ;

[0059] Step 9, paving 6 cm of modified AC-20 medium-grained asphalt concrete as the middle surface layer 312 of the pavement;

[0060] Step 10: Spray modified emulsified asphalt as the second bonding layer 314, with a dosage of 0.3-0.6 kg / m 2 ;

[0061] Step 11: Spread 4 cm of modified SMA-13 ​​fine-grained asphalt concrete as the upper pavement layer 311.

[0062] The road surface construction method of the utility model further comprises the step of installing a guardrail 14 on the road base body 1 .

[0063] The above examples are intended to illustrate the embodiments disclosed in the present utility model and should not be construed as limitations on the present utility model. In addition, the various modifications listed herein and the changes in the methods and compositions in the utility model are obvious to those skilled in the art without departing from the scope and spirit of the present utility model. Although the present utility model has been specifically described in conjunction with a variety of specific preferred embodiments of the present utility model, it should be understood that the present utility model should not be limited to these specific embodiments. In fact, various modifications as described above that are obvious to those skilled in the art to obtain the utility model should be included in the scope of the present utility model.

Claims

1. A durable connecting pavement structure for quickly repairing a bridge head jump in a highway maintenance project, comprising a road base body (1), characterized in that: The roadbed body (1) has a bridgehead roadbed section overlapped with the abutment structure (2); a bridgehead bump repair area is provided on the upper part of the bridgehead roadbed section; the bridgehead bump repair area is provided with a pavement connection structure (3); the pavement connection structure (3) comprises a multi-layer pavement structure formed by an asphalt concrete layer (31), a pavement base layer (32), a roadbed replacement layer (33), and a roadbed leveling layer (34) arranged in sequence from top to bottom; the asphalt concrete layer (31) is overlapped on both sides of the bridgehead bump repair area; a first bonding layer (35) is arranged between the asphalt concrete layer (31) and the pavement base layer (32); the roadbed replacement layer (33) is a plate-shaped structure assembled from a plurality of prefabricated EPS lightweight blocks; a first isolation layer (36) is arranged between the pavement base layer (32) and the roadbed replacement layer (33); and a second isolation layer (37) is arranged between the roadbed replacement layer (33) and the roadbed leveling layer (34).

2. A durable connecting pavement structure for quickly repairing a bridge head jump in a highway maintenance project according to claim 1, characterized in that: The asphalt concrete layer (31) comprises a pavement upper layer (311), a pavement middle layer (312) and a pavement lower layer (313) which are arranged in sequence from top to bottom, a second bonding layer (314) is arranged between the pavement upper layer (311) and the pavement middle layer (312), a third bonding layer (315) is arranged between the pavement middle layer (312) and the pavement lower layer (313), and a first bonding layer (35) is arranged between the pavement lower layer (313) and the pavement base layer (32), wherein the pavement upper layer (311) is a fine-grained asphalt concrete layer, the pavement middle layer (312) is a medium-grained asphalt concrete layer, the pavement lower layer (313) is a coarse-grained asphalt concrete layer, the first bonding layer (35) is a hot asphalt chip seal layer, and the second bonding layer (314) and the third bonding layer (315) are modified emulsified asphalt layers.

3. A durable connecting pavement structure for quickly repairing a bridge head jump in a highway maintenance project according to claim 1, characterized in that: The bridge head vehicle bounce repair area is divided into a first repair area and a second repair area along the length direction of the road base body (1), the first repair area is located between the abutment structure and the second repair area, the durable connecting pavement structure in the first repair area has two layers of the roadbed replacement layer (33), and the durable connecting pavement structure in the second repair area has one layer of the roadbed replacement layer (33).

4. A durable connecting pavement structure for quickly repairing a bridge head jump in a highway maintenance project according to claim 1, characterized in that: The road base (32) is a plate-like structure assembled from a plurality of prefabricated reinforced concrete slabs, and the width of the wet joint between two adjacent prefabricated reinforced concrete slabs is 10 cm.

5. The durable connecting pavement structure for quickly repairing a bridge head jump in a highway maintenance project according to claim 1, characterized in that: The first isolation layer (36) and the second isolation layer (37) are bamboo-based fiberboard.

6. A durable connecting pavement structure for quickly repairing a bridge head jump in a highway maintenance project according to claim 2, characterized in that: The thickness of the upper pavement layer (311) is 4 cm, the thickness of the middle pavement layer (312) is 6 cm, the thickness of the lower pavement layer (313) is 8 cm, the thickness of the pavement base layer (32) is 20 to 25 cm, the thickness of the roadbed replacement layer (33) is 200 to 300 cm, and the thickness of the roadbed leveling layer (34) is 10 to 15 cm.

7. A durable connecting pavement structure for quickly repairing a bridge head jump in a highway maintenance project according to claim 2, characterized in that: The bridgehead roadbed section comprises an original roadbed (11), an original subbase (12) and an original base (13) arranged in sequence from top to bottom; the pavement lower layer (313) is overlapped on the original base (13) on both sides of the bridgehead vehicle bounce repair area; and a polyester anti-cracking cloth (4) is arranged at the overlap interface between the pavement lower layer (313) and the original base.

8. A durable connecting pavement structure for quickly repairing a bridge head jump in a highway maintenance project according to claim 7, characterized in that: The thickness of the original base layer (13) is 20 to 25 cm, and the thickness of the original subbase layer (12) is 16 to 20 cm.

9. The durable connecting pavement structure for quickly repairing a bridge head jump in a highway maintenance project according to claim 1, characterized in that: The roadbed leveling layer (34) is a graded crushed stone layer.

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