Splicing structure for expanding new pavement and old pavement

Abstract

The utility model relates to the technical field of pavement engineering, and discloses an extension new and old pavement splicing structure which comprises an old pavement layer, an anti-cracking patch is fixedly connected to the top of the old pavement layer, high-performance fiber fabric is fixedly connected to the inner wall of the anti-cracking patch, a formwork is fixedly connected to the top of the anti-cracking patch, and the high-performance fiber fabric is fixedly connected to the inner wall of the anti-cracking patch. Steel strands are fixedly connected to the inner wall of the formwork, reinforcing ribs are fixedly connected to the tops of the outer walls of the multiple steel strands, the steel strands and the reinforcing ribs are connected through steel wires, a concrete slab is fixedly connected to the top of the formwork, and storage mechanisms are arranged on the left side and the right side of the old road layer correspondingly. And the storage mechanism comprises two storage boxes. According to the utility model, a layer of anti-cracking paste is additionally arranged between the new pavement and the old pavement, the anti-cracking paste is formed by compounding the high-performance fiber fabric and the modified asphalt, the steel strands are arranged at the bottom of the template, and the steel strands and the reinforcing ribs are wound and welded through the steel wires, so that the service life of the road is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to road surface engineering technical field especially relates to a kind of extension new and old road surface splicing structure. BACKGROUND

[0002] With the rapid economic development, domestic highway construction changes rapidly, the number of cars increases and leads to provincial trunk highway congestion, and the service life of some sections is shortened. To alleviate traffic pressure and improve traffic efficiency, we mainly take measures to build new highways and expand and repair existing highway networks. Although new highways have high grade and strong traffic capacity, they have large initial investment and long construction period, which limits their widespread application. In comparison, expanding and repairing existing highways are more popular due to lower investment, shorter construction period and faster results.

[0003] After searching, Chinese patent publication No. CN214938907U discloses a new and old road surface splicing structure for highway expansion, belonging to the technical field of road surface engineering. The utility model includes an old base layer, a new base layer connected to one side of the old base layer, and the old base layer and the new base layer are connected in a multi-level stepped manner, thereby increasing the contact area between the new and old road bases and reducing the shear stress and base tensile stress at the splicing point. The new base layer includes a bottom gravel layer, soil filling, filler layer and top gravel layer arranged in order from bottom to top on the original ground. A middle gravel layer is provided between the soil filling and the filler layer, and a bidirectional geogrid is provided between the filler layer and the top gravel layer, effectively improving the compactness of the splicing point. In summary, the utility model solves the connection problem of new and old road bases, reduces the differential settlement between new and old road bases, and ensures the overall stability and uniformity of the road base. However, the above-mentioned device has some problems in actual use. The traditional splicing method mainly uses a transition layer between the new and old road surfaces, which is usually made of asphalt mixture or cement stabilized gravel material. This method has the advantages of simple construction and low cost, but the strength and stability of the transition layer are poor, and it may be damaged under the influence of vehicle load and environmental factors. Therefore, a new and old road surface splicing structure is proposed to solve the above-mentioned problems. SUMMARY

[0004] To make up for the above shortcomings, the utility model provides a new and old road surface splicing structure, aiming to improve the efficient and stable splicing between new and old road surfaces in the prior art, and reduce cracks and pit diseases.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of extension new and old pavement splicing structure, including old road layer, the top of the old road layer is fixedly connected with anti-cracking paste, the inner wall of the anti-cracking paste is fixedly connected with high-performance fiber fabric, the top of the anti-cracking paste is fixedly connected with formwork, the inner wall of the formwork is fixedly connected with steel strand, the outer wall top of multiple steel strands is fixedly connected with reinforcing bar, the steel strand and the reinforcing bar are connected by steel wire, the top of the formwork is fixedly connected with concrete slab, the left and right sides of the old road layer are both provided with storage mechanism.

[0006] Through the above technical scheme: between new and old pavement, add a layer of anti-cracking paste, anti-cracking paste is made of high-performance fiber fabric and modified asphalt, high-performance fiber fabric provides certain tensile strength, can resist the tensile stress generated in the use process of pavement, prevent the appearance of crack, while embedding high-strength steel strand in formwork, prestressed concrete slab itself has higher strength and rigidity, can withstand larger vehicle load, internal high-strength steel strand is prestressed in the process of concrete slab prefabrication, when concrete slab is installed between new and old pavement, this prestress can effectively resist the tensile stress and shear stress generated by vehicle load and environmental factors, in the process of vehicle driving, prestressed concrete slab can reduce the deformation of pavement, guarantee the tightness of new and old pavement connection, improve the bearing capacity and durability of pavement structure, greatly prolong the service life of pavement.

[0007] As further description of the above technical scheme:

[0008] The storage mechanism includes two storage boxes, the adjacent side of the two storage boxes is fixedly connected to the left and right sides of the old road layer, the side away from the two storage boxes is communicated with a drain pipe, the inner wall of the storage box is rotatably connected with a shaft, the outer wall of the shaft is rotatably connected with a sealing plate, the adjacent side of the two sealing plates is fixedly connected with a sealing strip, the top of the sealing plate is fixedly connected with a plurality of lifting eyes, the outer wall of the plurality of lifting eyes is fixedly connected with a connecting line, and the top end of the plurality of connecting lines is fixedly connected with a float.

[0009] Through the above technical scheme: road water flows into storage box on both sides, when water storage reaches a certain height inside the storage box, rainwater will drive the sealing plate to rotate through the float, so that excess rainwater is discharged through the drain pipe, so that the storage box on both sides of the road stores and uses accumulated water, and excess rainwater is discharged into the nearest river through the drain pipe, improving the drainage efficiency, improving the recycling of water resources, and avoiding waste.

[0010] As further description of the above technical scheme:

[0011] The storage mechanism further comprises a water outlet pipe, a bottom end of the water outlet pipe is communicated with the top of the storage tank, and an outer wall of the water outlet pipe is fixedly connected with a valve seat.

[0012] Through the above technical scheme: the water outlet pipe can facilitate the extraction of rainwater in the storage tank, facilitating irrigation or road cleaning when the weather is dry.

[0013] As a further description of the above technical scheme:

[0014] The steel strand and the reinforcing bar are both formed by interweaving steel wires, and form a mesh structure.

[0015] Through the above technical scheme: the steel strand and the reinforcing bar are interlaced with each other, and the interlaced position between the steel strand and the reinforcing bar is wound and welded by steel wires, thereby improving the prestress effect of the road.

[0016] As a further description of the above technical scheme:

[0017] The outer wall of the reinforcing bar is provided with a waterproof coating, and the top of the concrete slab is fixedly connected with a waterproof layer.

[0018] Through the above technical scheme: the outer wall of the reinforcing bar is provided with a waterproof coating, which can further improve the service life of the reinforcing bar and avoid rusting on the surface.

[0019] As a further description of the above technical scheme:

[0020] The top and left and right sides of the waterproof layer are both provided with a water collecting groove, and the left and right sides of the waterproof layer are both provided with a flow guiding groove.

[0021] Through the above technical scheme: the waterproof layer can avoid the penetration of rainwater, improve the sealing property of the road, and guide the rainwater on the surface of the road into the storage tank through the flow guiding layer and the water collecting groove.

[0022] As a further description of the above technical scheme:

[0023] The top and left and right sides of the waterproof layer are both fixedly connected with a baffle, and adjacent sides of the two baffles are both provided with a filtering hole.

[0024] Through the above technical scheme: the baffles are installed on both sides of the road, and the baffles can avoid the blockage of the drain by garbage, and the filtering holes can ensure the normal flow of rainwater.

[0025] As a further description of the above technical scheme:

[0026] The opposite sides of the two baffles are both fixedly connected with a reinforcing plate, and the bottom of the two reinforcing plates is both fixedly connected with the top of the storage tank.

[0027] Through the technical scheme, the reinforcing plate is arranged between the baffle and the storage box to support the baffle, so that the firmness of the baffle is improved.

[0028] The utility model has the advantages of the following:

[0029] 1. The utility model discloses a layer of anti -cracking paste is additionally arranged between the new and old pavement, and the anti -cracking paste is composed of high -performance fiber fabric and modified asphalt, a formwork of prestressed concrete slab is installed between the new and old pavement, a steel strand is installed at the bottom of the formwork, and the steel strand is welded through steel wire winding between the steel strand and the reinforcing bar, when the vehicle runs on the pavement, the concrete slab will produce downward bending deformation, and tensile stress is generated at the bottom of the slab, the horizontally placed steel strand can well resist the tensile stress, a horizontal tensile force zone is formed in the concrete slab, the bottom of the concrete slab is pulled tightly, and cracks are prevented from appearing due to tension.

[0030] 2. The utility model discloses a storage tank is used for storing road accumulated water, and the excess rainwater is discharged into the nearest river of the road through the drain pipe, when the water in the storage tank reaches a certain height, the rainwater drives the float to float upwards, so that the sealing plate is opened, and the excess rainwater is discharged downwards, the rainwater in the storage tank is pumped out through the water outlet pipe, and the utilization efficiency of the rainwater is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A perspective view of the expansion new and old pavement splicing structure is provided for the utility model;

[0032] Figure 2 A split view of the expansion new and old pavement splicing structure is provided for the utility model;

[0033] Figure 3 A sectional view of the expansion new and old pavement splicing structure is provided for the utility model;

[0034] Figure 4 A partial structure schematic view of the steel strand of the expansion new and old pavement splicing structure is provided for the utility model;

[0035] Figure 5 A structure schematic view of the storage mechanism of the expansion new and old pavement splicing structure is provided for the utility model.

[0036] LEGEND:

[0037] 1, old road layer; 2, storage mechanism; 201, storage box; 202, drain pipe; 203, rotating shaft; 204, sealing plate; 205, sealing strip; 206, lifting ring; 207, connecting line; 208, float; 209, water outlet pipe; 210, valve seat; 3, anti-cracking paste; 4, high-performance fiber fabric; 5, template; 6, steel strand; 7, reinforcing bar; 8, steel wire; 9, waterproof coating; 10, waterproof layer; 11, concrete slab; 12, water collecting tank; 13, baffle; 14, flow guide groove; 15, filter hole; 16, reinforcing plate. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] Referring to Figure 2 , Figure 3 and Figure 4The utility model provides an embodiment: a kind of extension new and old pavement splicing structure, the top of old road layer 1 is fixedly connected with anti-cracking paste 3, the inner wall of anti-cracking paste 3 is fixedly connected with high-performance fiber fabric 4, a layer of anti-cracking paste 3 is additionally provided between new and old pavement, anti-cracking paste 3 is made of high-performance fiber fabric 4 and modified asphalt compound, high-performance fiber fabric 4 provides certain tensile strength, can resist tensile stress generated in the use process of pavement, prevent the appearance of crack, modified asphalt guarantees the good adhesion between anti-cracking paste 3 and pavement material, also have certain flexibility simultaneously, can be deformed with the slight deformation of pavement, cannot be broken due to the expansion of pavement, the main role of anti-cracking paste is to form an additional protective layer between new and old pavement, further prevent crack from old pavement or new pavement to extend to joint, to improve the connection strength and stability of new and old pavement, the top of anti-cracking paste 3 is fixedly connected with formwork 5, the inner wall of formwork 5 is fixedly connected with steel strand 6, the outer wall top of multiple steel strands 6 is fixedly connected with reinforcing rib 7, steel strand 6 and reinforcing rib 7 are connected by steel wire 8, steel strand 6 and reinforcing rib 7 are all made of steel wire 8 interlacing, and constitute mesh structure, in formwork 5, the accurate position of steel strand 6 is determined by marking positioning point according to requirement, steel strand 6 is laid along these positioning points, to ensure that its interval is uniform, in formwork, steel strand 6 is arranged in parallel, consistent with the long side direction of concrete slab 11, and there is certain protective layer thickness from plate bottom, this protective layer thickness is to prevent steel strand 6 from rusting by directly contacting formwork 5, the outer wall of reinforcing rib 7 is provided with waterproof coating 9, the top of concrete slab 11 is fixedly connected with waterproof layer 10, the top of formwork 5 is fixedly connected with concrete slab 11, the left and right sides of old road layer 1 are provided with storage mechanism 2, when vehicle travels on pavement, concrete slab 11 will produce downward bending deformation, tensile stress is generated at the bottom of plate, horizontally placed steel strand 6 can well resist this tensile stress, form a horizontal tensile belt inside concrete slab 11, tighten the bottom of concrete slab 11, prevent crack or damage from being generated due to being pulled;

[0040] Specifically, the top of the old road layer 1 is fixedly connected with a crack prevention paste 3, the inner wall of the crack prevention paste 3 is uniformly and firmly fixedly connected with a high-performance fiber fabric 4, such fabric has excellent physical properties, a layer of crack prevention paste 3 is additionally arranged between the new and old pavements, the crack prevention paste 3 is composed of the high-performance fiber fabric 4 and high-quality modified asphalt through special process, the high-performance fiber fabric 4 provides certain tensile strength for the pavement structure by virtue of its high-strength characteristics, can effectively resist the tensile stress generated in the pavement during use due to vehicle load and temperature change factors, thereby effectively preventing the occurrence of cracks, and the modified asphalt ensures the close adhesion between the crack prevention paste 3 and the pavement material by virtue of its excellent adhesion and flexibility, even if the pavement has slight deformation, the crack prevention paste 3 can also deform without breaking, the main function of the crack prevention paste 3 is to form an additional protective layer between the new and old pavements, the protective layer can further prevent cracks from expanding from the old pavement or the new pavement to the joint, thereby significantly improving the connection strength and overall stability of the new and old pavements, the top of the crack prevention paste 3 is fixedly connected with a formwork 5, the inner wall of the formwork 5 is fixedly connected with a plurality of steel strands 6, the steel strands 6 are orderly arranged in the formwork 5, the outer wall top of the plurality of steel strands 6 is fixedly connected with a reinforcing rib 7, the reinforcing rib 7 and the steel strand 6 jointly constitute a reinforcing structure of the pavement; the steel strands 6 and the reinforcing rib 7 are connected through a steel wire 8, forming a stable net-shaped structure, the net-shaped structure not only enhances the overall strength of the pavement, but also improves the crack resistance of the pavement; in the formwork 5, the laying position of the steel strands 6 is determined through marking positioning points, ensuring that the steel strands 6 are evenly laid along the positioning points to maintain the consistency of the spacing, in order to further improve the waterproof performance of the pavement, the outer wall of the reinforcing rib 7 is coated with a layer of waterproof coating 9; at the same time, the top of the concrete slab 11 is fixedly connected with a waterproof layer 10, ensuring the waterproof performance of the pavement structure, the top of the formwork 5 is fixedly connected with a concrete slab 11, forming the main structure of the pavement; when the vehicle drives on the pavement, the concrete slab 11 will produce downward bending deformation, thereby generating tensile stress at the bottom of the slab, the horizontally placed steel strands 6 can fully exert their tensile properties, effectively resisting such tensile stress, thereby forming a stable horizontal tensile belt inside the concrete slab 11, the tensile belt can tighten the bottom of the concrete slab 11, preventing cracks from occurring due to tension, thereby ensuring the long-term stability and safety of the pavement.

[0041] Referring to Figure 1 , Figure 3 and Figure 5The storage mechanism 2 comprises two storage boxes 201, the adjacent sides of the two storage boxes 201 are fixedly connected to the left and right sides of the old road layer 1, the road water is stored through the storage boxes 201, the storage is convenient for later use, the sides away from each other of the two storage boxes 201 are communicated with a drain pipe 202, the excess rainwater is discharged into the river closest to the road through the drain pipe 202, the inner wall middle part of the storage box 201 is rotatably connected with a rotating shaft 203, the outer wall of the rotating shaft 203 is rotatably connected with a sealing plate 204, the sealing plate 204 is installed in the inner wall of the storage box 201 through the rotating shaft 203, the adjacent sides of the two sealing plates 204 are fixedly connected with a sealing strip 205, the top of the sealing plate 204 is fixedly connected with a plurality of lifting rings 206, the outer wall of the plurality of lifting rings 206 is fixedly connected with a connecting line 207, the top end of the plurality of connecting lines 207 is fixedly connected with a float 208, when the water in the storage box 201 reaches a certain height, the rainwater drives the float 208 to float upwards, so that the sealing plate 204 is opened, and the excess rainwater is discharged downwards, the storage mechanism 2 further comprises a water outlet pipe 209, the bottom end of the water outlet pipe 209 is communicated with the top of the storage box 201, the outer wall of the water outlet pipe 209 is fixedly connected with a valve seat 210, the rainwater in the storage box 201 is extracted for use through the water outlet pipe 209, and the utilization efficiency of the rainwater is improved;

[0042] Specifically, the storage box 201 can effectively collect and store road water for later use. The adjacent sides of the storage box 201 are fixedly connected to the left and right sides of the old road layer 1, so as to ensure that the storage box 201 can stably receive and contain water from the road. In order to effectively manage the water in the storage box 201, the far sides of the two storage boxes 201 are communicated with the drain pipes 202. The drain pipes 202 can drain the excess rainwater into the nearest river when the water in the storage box 201 reaches a certain level, so as to avoid excessive pressure or overflow of the storage box 201. The inner wall of the storage box 201 is rotatably connected with a shaft 203, and the outer wall of the shaft 203 is rotatably connected with a sealing plate 204. The sealing plate 204 is installed in the inner wall of the storage box 201 through the shaft 203 to control the discharge of water in the storage box 201. In order to ensure the sealing effect of the sealing plate 204, the adjacent sides of the two sealing plates 204 are fixedly connected with sealing strips 205. The sealing strips 205 can effectively prevent rainwater from leaking out of the gaps of the sealing plate 204, so as to ensure the sealing property of the storage box 201 and the effectiveness of water management. In order to further control the discharge of water in the storage box 201, the top of the sealing plate 204 is fixedly connected with a plurality of lifting rings 206. The outer wall of the lifting ring 206 is fixedly connected with a connecting line 207, and the top end of the connecting line 207 is fixedly connected with a float 208. When the water in the storage box 201 reaches a certain height, the rainwater will drive the float 208 to float upwards. The floating of the float 208 will drag the sealing plate 204 to open through the connecting line 207 and the lifting ring 206, so that the excess rainwater can be smoothly discharged downward. The bottom end of the water outlet pipe 209 is communicated with the top of the storage box 201. The water in the storage box 201 is pumped out through the pipeline and used in other places. The water outlet pipe 209 is opened or closed through the control valve seat 210, so as to realize the effective management of the water in the storage box 201. The effective collection, storage and management of road water are realized, and the stored rainwater can be pumped out and used in other places, so as to improve the utilization efficiency of rainwater.

[0043] Referring to Figure 1 , Figure 2 and Figure 3 , the top left and right sides of the waterproof layer 10 are provided with water collecting grooves 12. The left and right sides of the waterproof layer 10 are provided with flow guide grooves 14. The top left and right sides of the waterproof layer 10 are fixedly connected with baffles 13. The adjacent sides of the two baffles 13 are provided with filter holes 15. The far sides of the two baffles 13 are fixedly connected with reinforcing plates 16. The bottoms of the two reinforcing plates 16 are fixedly connected to the top of the storage box 201.

[0044] Specifically, the top of the waterproof layer 10 is provided with a water collecting groove 12 on the left and right sides, and the main function of the water collecting groove 12 is to collect and guide the water flow from the top, to ensure that the water flow can flow to the predetermined drainage area in an orderly manner. The water flow groove 14 is provided on the left and right sides of the waterproof layer 10, which is used to further guide the water flow, so that it can be smoothly discharged along a specific path, avoiding the accumulation of water flow on the surface of the waterproof layer 10, thereby protecting the waterproof layer 10 from erosion. In order to enhance the practicability and durability of the waterproof layer 10, the baffle 13 is fixedly connected to the top of the left and right sides, and the main function of the baffle 13 is to prevent the water flow from directly impacting the top of the waterproof layer 10, reducing the impact force and wear of the water flow on the waterproof layer 10. At the same time, the baffle 13 can also play a certain guiding role, making the water flow flow into the water collecting groove 12 more smoothly. The adjacent side of the two baffles 13 is provided with a filter hole 15, which can filter out impurities and particulate matter in the water flow, ensuring that the water flow entering the water collecting groove 12 is relatively pure, reducing the risk of blockage of the waterproof layer 10 and the subsequent drainage system.

[0045] Working principle: first, a layer of anti-cracking paste 3 is added between the new and old pavements, the anti-cracking paste 3 is composed of high-performance fiber fabric 4 and modified asphalt, the template 5 of the prestressed concrete slab 11 is installed between the new and old pavements, the template 5 is made of steel template to ensure that the template 5 has sufficient strength and rigidity, the levelness and perpendicularity of the template are controlled by using a level and a theodolite measuring instrument, the splicing between adjacent templates 5 is tight, the bottom of the template 5 is provided with a pad and the side is provided with a support to ensure the stability of the template during the concrete pouring process, the steel wire 6 is fixedly connected to the inner wall of the template 5, the steel wire 6 and the reinforcing bar 7 are connected through the steel wire 8, when the vehicle drives on the pavement, the concrete slab 11 will produce downward bending deformation, the bottom of the template 5 will produce tensile stress, the horizontally placed steel wire 6 can well resist this tensile stress, forming a horizontal tensile belt inside the concrete slab 11, which tightens the bottom of the concrete slab 11 and prevents it from being cracked or damaged due to tension;

[0046] And the storage tank 201 stores the road water, which is convenient for later use, the excess rainwater is discharged to the nearest river through the drain pipe 202, when the water in the storage tank 201 reaches a certain height, the rainwater drives the float 208 to float upward, which drags the sealing plate 204 to open, so that the excess rainwater is discharged downward, the rainwater in the storage tank 201 is pumped out through the water outlet pipe 209, which improves the utilization efficiency of rainwater.

[0047] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A structure for splicing new and old road surfaces, comprising an old road layer (1), characterized in that: The top of the old road layer (1) is fixedly connected with an anti-crack patch (3), and the inner wall of the anti-crack patch (3) is fixedly connected with a high-performance fiber fabric (4). The top of the anti-crack patch (3) is fixedly connected with a template (5), and the inner wall of the template (5) is fixedly connected with a steel strand (6). The top of the outer wall of multiple steel strands (6) is fixedly connected with reinforcing ribs (7). The steel strands (6) and the reinforcing ribs (7) are connected by steel wires (8). The top of the template (5) is fixedly connected with a concrete slab (11). Storage mechanisms (2) are provided on both the left and right sides of the old road layer (1).

2. The expansion and relocation structure for old and new road surfaces according to claim 1, characterized in that: The storage mechanism (2) includes two storage boxes (201). The adjacent sides of the two storage boxes (201) are fixedly connected to the left and right sides of the old road layer (1). The opposite sides of the two storage boxes (201) are connected to a drain pipe (202). A rotating shaft (203) is rotatably connected to the middle of the inner wall of the storage box (201). A sealing plate (204) is rotatably connected to the outer wall of the rotating shaft (203). A sealing strip (205) is fixedly connected to the adjacent sides of the two sealing plates (204). Multiple lifting rings (206) are fixedly connected to the top of the sealing plates (204). A connecting line (207) is fixedly connected to the outer wall of the multiple lifting rings (206). A float (208) is fixedly connected to the top of the multiple connecting lines (207).

3. The expansion and relocation structure for old and new road surfaces according to claim 2, characterized in that: The storage mechanism (2) also includes a water outlet pipe (209), the bottom end of which is connected to the top of the storage box (201), and a valve seat (210) is fixedly connected to the outer wall of the water outlet pipe (209).

4. The expansion and relocation structure for old and new road surfaces according to claim 1, characterized in that: The steel strand (6) and the reinforcing rib (7) are both made of interwoven steel wire (8) and form a mesh structure.

5. The expansion and relocation structure for old and new road surfaces according to claim 1, characterized in that: The outer wall of each reinforcing rib (7) is provided with a waterproof coating (9), and the top of the concrete slab (11) is fixedly connected with a waterproof layer (10).

6. The expansion and relocation structure for old and new road surfaces according to claim 5, characterized in that: Water collection grooves (12) are provided on the top left and right sides of the waterproof layer (10), and flow guide grooves (14) are provided on the left and right sides of the waterproof layer (10).

7. The expansion and relocation structure for old and new road surfaces according to claim 6, characterized in that: The top left and right sides of the waterproof layer (10) are fixedly connected with baffles (13), and filter holes (15) are opened on the adjacent side of the two baffles (13).

8. The expansion and relocation structure for old and new road surfaces according to claim 7, characterized in that: A reinforcing plate (16) is fixedly connected to the opposite side of each of the two baffles (13), and the bottom of each of the two reinforcing plates (16) is fixedly connected to the top of the storage box (201).

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