Roadbed widening spliced roadbed expansion structure

Abstract

According to the roadbed widening splicing roadbed expansion structure, a plurality of track pillow strips are arranged at intervals in the length direction of an existing outer laying layer, and the length direction of the track pillow strips is consistent with the width direction of the existing outer laying layer; the two track parts are arranged on the multiple track pillow strips side by side, and the length direction of the track parts is consistent with the length direction of the existing outer laying layer; according to the roadbed widening and splicing expansion structure provided by the utility model, the two track parts are arranged on the plurality of track pillow strips in parallel, and the track parts are used as a transfer foundation of an external construction device, so that the construction process is greatly simplified; fixing of the pouring plate assembly is achieved through the track sleeper strips, the occupied construction space is reduced as much as possible, and meanwhile the flatness and the curvature of an existing pavement structure can be matched; due to the welding characteristic of the new reinforcing mesh, the structural strength of the new inner laying layer is high, and the combination degree between the new inner laying layer and the existing inner laying layer is higher.

Description

Technical Field

[0001] The utility model relates to the field of road construction, in particular to a roadbed widening and splicing roadbed expansion structure. Background Art

[0002] With economic growth and social progress, the width of existing road infrastructure often cannot meet the needs of increasing traffic volume. In addition to dismantling the entire existing pavement structure and completing the construction from scratch, widening the existing pavement structure can also be done on the side.

[0003] In traditional concrete roadbed widening, expansion, and splicing technology, a trench is typically excavated alongside the existing roadbed, ensuring its depth matches the existing concrete base. After the trench is excavated, workers erect formwork along its sides and begin filling it with mortar. Once the mortar solidifies and takes shape, the new roadbed is formed, completing the widening, expansion, and splicing process. This process is labor-intensive and significantly increases worker intensity, impacting overall construction efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a roadbed widening and splicing roadbed expansion structure, aiming to solve the problem of low process efficiency in widening the existing road surface structure.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a roadbed widening and splicing roadbed expansion structure, corresponding to the existing pavement structure, the existing pavement structure comprises, from bottom to top, a base surface, an existing roadbed, an existing inner paving layer and an existing outer paving layer, the existing inner paving layer is provided with an existing steel mesh, including:

[0006] A plurality of rail sleepers are arranged at intervals in the length direction of the existing outer paving layer, and the length direction of the rail sleepers is consistent with the width direction of the existing outer paving layer;

[0007] Two track parts are arranged in parallel on the plurality of track sleepers, the length direction of the track parts is consistent with the length direction of the existing outer paving layer, wherein the track parts serve as a transfer base for the external construction device;

[0008] A casting plate assembly includes a crossbeam and a vertical plate, wherein the crossbeam is detachably connected to the rail sleeper and extends outward in the width direction of the existing pavement structure, and the vertical plate is connected to the crossbeam and vertically downwardly arranged with its length direction aligned with the existing pavement structure, wherein a construction space is formed between the vertical plate and the end surface of the existing pavement structure in the width direction;

[0009] A new roadbed is provided at the end face of the construction space corresponding to the width direction of the existing roadbed and is provided with the same thickness;

[0010] A new steel mesh is arranged corresponding to the construction space and welded to the existing steel mesh;

[0011] A new inner paving layer is provided at the end surface of the construction space corresponding to the width direction of the existing inner paving layer and is provided with the same thickness;

[0012] The new outer paving layer is arranged at the end surface of the construction space corresponding to the width direction of the existing outer paving layer and is arranged with the same thickness.

[0013] Furthermore, the track portion includes a plurality of tracks that are detachably connected to each other in the length direction.

[0014] Furthermore, the roadbed widening and splicing roadbed expansion structure also includes a transfer vehicle, and the transfer vehicle is slidably arranged on the track portion.

[0015] Furthermore, a wheel-type cutting machine is detachably mounted on the transfer vehicle.

[0016] Furthermore, the top of the vertical plate is matched with a horizontal plate, wherein after installation, the lower surface of the horizontal plate is flush with the upper surface of the existing outer paving layer.

[0017] Furthermore, the transverse plate is detachably connected to the transverse beam.

[0018] Furthermore, the rail sleeper strip is tubular, and the crossbeam is inserted into the rail sleeper strip.

[0019] Furthermore, the casting plate assembly includes at least two of the beams.

[0020] Furthermore, the track portion is fixed to the track sleeper bar by means of bolts.

[0021] Furthermore, the rail sleeper strips and the rail portion are made of aluminum.

[0022] The utility model provides a roadbed widening and splicing roadbed expansion structure, in which multiple track sleepers are arranged at intervals in the length direction of the existing outer paving layer, and two track parts are arranged in parallel on the multiple track sleepers. The track parts serve as the transfer basis of the external construction equipment, which greatly simplifies the construction process; the fixing of the casting plate assembly is achieved by the track sleepers, which minimizes the occupation of the construction space and can match the flatness and curvature of the existing pavement structure; the welding characteristics of the new steel mesh make the structural strength of the new inner paving layer higher, and the degree of bonding between the new inner paving layer and the existing inner paving layer is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a roadbed widening and splicing roadbed expansion structure according to the first embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 A partial enlarged view of

[0025] Figure 3 It is a working schematic diagram of a transfer vehicle in a roadbed widening and splicing roadbed expansion structure in the second embodiment of the present utility model.

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] Those skilled in the art will understand that, unless expressly stated otherwise, the singular forms "a", "an", "said", "above" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements, units, modules and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0029] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art in the field to which this invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0030] Reference Figure 1 (For clarity, the proportions of the various components in the accompanying drawings have been adjusted.) In one embodiment of the present invention, a roadbed widening and splicing roadbed expansion structure corresponds to an existing pavement structure 001. The existing pavement structure 001 comprises, from bottom to top, a base surface 010, an existing roadbed 020, an existing inner paving layer 030, and an existing outer paving layer 050. The existing inner paving layer 030 is provided with an existing steel mesh 040, including:

[0031] A plurality of rail sleeper strips 100 are arranged at intervals in the length direction of the existing outer paving layer 050, and the length direction of the rail sleeper strips 100 is consistent with the width direction of the existing outer paving layer 050;

[0032] Two track sections 200 are arranged in parallel on the plurality of track sleepers 100 , wherein the length direction of the track section 200 is consistent with the length direction of the existing outer paving layer 050 , wherein the track section 200 serves as a transfer base for the external construction device;

[0033] The casting plate assembly 300 includes a crossbeam 310 and a vertical plate 320. The crossbeam 310 is detachably connected to the track sleeper 100 and extends outward in the width direction of the existing pavement structure 001. The vertical plate 320 is connected to the crossbeam 310 and is vertically arranged downward and its length direction is consistent with the existing pavement structure 001. A construction space is formed between the vertical plate 320 and the end surface of the existing pavement structure 001 in the width direction.

[0034] The new roadbed 400 is arranged at the end face of the construction space corresponding to the width direction of the existing roadbed 020 and is set with the same thickness;

[0035] A new steel mesh 500 is arranged corresponding to the construction space and welded to the existing steel mesh 040;

[0036] The new inner paving layer 600 is arranged at the end surface of the construction space corresponding to the width direction of the existing inner paving layer 030 and is set with the same thickness;

[0037] The new outer paving layer 700 is arranged at the end surface of the construction space corresponding to the width direction of the existing outer paving layer 050 and is set with the same thickness.

[0038] In the existing technology, the process of widening, expanding and splicing is extremely labor-intensive, which significantly increases the labor intensity of workers and thus affects the overall construction efficiency.

[0039] The present invention provides a roadbed widening and splicing extension structure corresponding to an existing pavement structure 001. The existing pavement structure 001 comprises, from bottom to top, a base surface 010, an existing roadbed 020, an existing inner paving layer 030, and an existing outer paving layer 050. The existing inner paving layer 030 is provided with an existing steel mesh 040. The roadbed widening and splicing extension structure includes: Base surface 010 is a flat foundation, such as a compacted surface. Existing roadbed 020 may be a filler material such as small-sized stone. Existing inner paving layer 030 and existing outer paving layer 050 may each be made of different types of cement-based materials.

[0040] Multiple rail sleepers 100 are spaced apart along the length of the existing outer paving layer 050, with the length of each rail sleeper 100 aligning with the width of the existing outer paving layer 050. These rail sleepers 100 provide a foundation for the subsequent installation of the track section 200. The rail sleepers 100 can be made of wood, polymer, or metal.

[0041] Two track sections 200 are arranged side by side on multiple rail sleepers 100. The length of the track section 200 aligns with the length of the existing outer paving layer 050. The track section 200 serves as a transfer base for external construction equipment; for example, a transfer vehicle 800 is mounted on the track section 200. The transfer vehicle 800 can be used to load raw materials, install cutting processing machinery, or install pumping equipment. The introduction of the transfer vehicle 800 greatly simplifies the construction process.

[0042] The cast plate assembly 300 includes a crossbeam 310 and a vertical plate 320. The crossbeam 310 is detachably connected to the track sleeper 100 and extends outward in the width direction of the existing pavement structure 001. The vertical plate 320 is connected to the crossbeam 310 and arranged vertically downward, with its length aligned with the existing pavement structure 001. This creates a construction space between the vertical plate 320 and the width end face of the existing pavement structure 001. The cast plate assembly 300 is secured via the track sleeper 100, minimizing the construction space occupied while matching the flatness and curvature of the existing pavement structure 001.

[0043] The new roadbed 400 is set at the end face of the existing roadbed 020 in the width direction of the construction space and is set with equal thickness.

[0044] New reinforcement mesh 500 is installed in the construction space and welded to existing reinforcement mesh 040. New inner layer 600 is placed in the construction space, corresponding to the width end of existing inner layer 030, and is of equal thickness. The weldability of new reinforcement mesh 500 provides greater structural strength for new inner layer 600, further enhancing the bond between new inner layer 600 and existing inner layer 030.

[0045] The new outer paving layer 700 is set at the end face of the construction space corresponding to the width direction of the existing outer paving layer 050 and is set with the same thickness, finally completing the expansion process.

[0046] In summary, multiple track sleepers 100 are arranged at intervals in the length direction of the existing outer paving layer 050, and two track parts 200 are arranged side by side on the multiple track sleepers 100. The track parts 200 serve as the transfer basis of the external construction equipment, which greatly simplifies the construction process; the fixing of the casting plate assembly 300 is achieved through the track sleepers 100, which minimizes the occupation of the construction space and can match the flatness and curvature of the existing pavement structure 001; the welding characteristics of the new steel mesh 500 make the structural strength of the new inner paving layer 600 higher, and the degree of bonding between the new inner paving layer 600 and the existing inner paving layer 030 is higher.

[0047] In one embodiment, the rail portion 200 includes a plurality of rails that are detachably connected to each other in the length direction.

[0048] In this embodiment, the rails are connected to each other to enhance the structural strength of the rail portion 200. The rails may be connected by snapping, buckling, or bolting.

[0049] Reference Figure 3 In one embodiment, the roadbed widening and splicing roadbed expansion structure further includes a transfer vehicle 800 , and the transfer vehicle 800 is slidably disposed on the track portion 200 .

[0050] In this embodiment, the transfer vehicle 800 can be used as a loading base for raw materials, as an installation base for cutting processing machinery, or as an installation base for a pumping device. By introducing the transfer vehicle 800, the construction process is greatly simplified.

[0051] Reference Figure 3 In one embodiment, a wheel-type cutting machine 900 is detachably mounted on the transfer vehicle 800 .

[0052] In this embodiment, considering that the end face of the existing pavement structure 001 in the width direction needs to be cut, a cutting machine 900 can be detachably installed on the transfer vehicle 800, so that the cutting machine 900 can realize a fast and accurate cutting process during the transfer of the transfer vehicle 800.

[0053] In one embodiment, the top of the vertical plate 320 is further matched with a horizontal plate, wherein the lower surface of the horizontal plate is flush with the upper surface of the existing outer paving layer 050 after installation.

[0054] In this embodiment, the horizontal board is used to assist in the laying of the new outer layer 700. The horizontal board improves the quality of the upper surface of the new outer layer 700 and makes it flush with the upper surface of the existing outer layer 050. During the specific construction process, a release film is also provided on the lower surface of the horizontal board to improve the engineering quality of the upper surface of the new outer layer 700.

[0055] In one embodiment, the cross plate is detachably connected to the cross beam 310 .

[0056] In this embodiment, the transverse plate is set on the cross beam 310, and the fixation is simplified. For example, the transverse plate can be hung horizontally between two cross beams 310. After the pouring of the new outer paving layer 700 is completed, the transverse plate is installed.

[0057] Reference Figure 1 In one embodiment, the rail sleeper strip 100 is tubular, and the crossbeam 310 is inserted into the rail sleeper strip 100 .

[0058] In this embodiment, the shape of the track sleeper 100 is restricted so that the crossbeam 310 can be conveniently fixed in the track sleeper 100 by plugging, thereby improving work efficiency during the construction and finishing process.

[0059] In one embodiment, the casting plate assembly 300 includes at least two beams 310 .

[0060] In this embodiment, the shape of the casting plate assembly 300 is limited, and by providing multiple cross beams 310 on a single riser 320, the entire casting plate assembly 300 can be stably fixed to the track sleeper 100. In particular, the length of the riser 320 can be greatly increased. The presence of the casting plate assembly 300 can also naturally limit the spacing between the track sleepers 100, providing a basis for the regular spacing of multiple track sleepers 100.

[0061] In one embodiment, the rail portion 200 is fixed to the rail sleeper bar 100 by means of bolts.

[0062] In this embodiment, the difficulty of disassembling and assembling the track portion 200 and the track sleeper 100 is reduced, thereby reducing the difficulty of the construction process and improving the efficiency.

[0063] In one embodiment, the rail sleeper strip 100 and the rail portion 200 are made of aluminum.

[0064] In this embodiment, the materials of the track sleeper 100 and the track portion 200 are restricted so that both can form a certain deformation, thereby matching the undulations of the existing pavement structure 001 in the vertical direction.

[0065] In summary, the utility model provides a roadbed widening and splicing roadbed expansion structure, in which multiple track sleepers 100 are arranged at intervals in the length direction of the existing outer paving layer 050, and two track parts 200 are arranged in parallel on the multiple track sleepers 100. The track parts 200 serve as the transfer basis of the external construction device, which greatly simplifies the construction process; the cast plate assembly 300 is fixed by the track sleepers 100, which minimizes the occupation of the construction space and can match the flatness and curvature of the existing pavement structure 001; the welding characteristics of the new steel mesh 500 make the structural strength of the new inner paving layer 600 higher, and the degree of bonding between the new inner paving layer 600 and the existing inner paving layer 030 is higher.

[0066] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A roadbed widening and splicing roadbed expansion structure, corresponding to an existing pavement structure (001), wherein the existing pavement structure (001) comprises, from bottom to top, a base surface (010), an existing roadbed (020), an existing inner paving layer (030), and an existing outer paving layer (050), wherein an existing steel mesh (040) is provided in the existing inner paving layer (030), and is characterized in that: include: A plurality of rail sleeper strips (100) are arranged at intervals in the length direction of the existing outer paving layer (050), and the length direction of the rail sleeper strips (100) is consistent with the width direction of the existing outer paving layer (050); Two track parts (200) are arranged in parallel on the plurality of track sleeper bars (100), the length direction of the track parts (200) being consistent with the length direction of the existing outer paving layer (050), wherein the track parts (200) serve as a transfer base for the external construction device; A casting plate assembly (300) includes a crossbeam (310) and a vertical plate (320), wherein the crossbeam (310) is detachably connected to the rail sleeper (100) and extends outward in the width direction of the existing pavement structure (001), and the vertical plate (320) is connected to the crossbeam (310) and vertically arranged downward, and its length direction is consistent with that of the existing pavement structure (001), wherein a construction space is formed between the vertical plate (320) and the end surface of the existing pavement structure (001) in the width direction; A new roadbed (400) is arranged on the end face of the construction space corresponding to the width direction of the existing roadbed (020) and is arranged with equal thickness; A new steel mesh (500) is arranged corresponding to the construction space and welded to the existing steel mesh (040); A new inner paving layer (600) is arranged on the end surface of the construction space corresponding to the width direction of the existing inner paving layer (030) and is arranged with the same thickness; The new outer paving layer (700) is arranged on the end surface of the construction space corresponding to the width direction of the existing outer paving layer (050) and is arranged with the same thickness.

2. The roadbed widening and splicing roadbed expansion structure according to claim 1 is characterized in that: The track portion (200) comprises a plurality of tracks detachably connected to each other in the length direction.

3. The roadbed widening and splicing roadbed expansion structure according to claim 1 is characterized in that: The roadbed widening and splicing roadbed expansion structure further comprises a transfer vehicle (800), and the transfer vehicle (800) is slidably arranged on the track portion (200).

4. The roadbed widening and splicing roadbed expansion structure according to claim 3 is characterized in that: A wheel-type cutting machine (900) is detachably mounted on the transfer vehicle (800).

5. The roadbed widening and splicing roadbed expansion structure according to claim 1 is characterized in that: The top of the vertical plate (320) is also matched with a horizontal plate, wherein, after installation, the lower surface of the horizontal plate is flush with the upper surface of the existing outer paving layer (050).

6. The roadbed widening and splicing roadbed expansion structure according to claim 5, characterized in that: The transverse plate is detachably connected to the transverse beam (310).

7. The roadbed widening and splicing roadbed expansion structure according to claim 1 is characterized in that: The rail sleeper bar (100) is tubular, and the crossbeam (310) is inserted into the rail sleeper bar (100).

8. The roadbed widening and splicing roadbed expansion structure according to claim 1 is characterized in that: The casting plate assembly (300) includes at least two crossbeams (310).

9. The roadbed widening and splicing roadbed expansion structure according to any one of claims 1 to 8, characterized in that: The track portion (200) is fixed to the track sleeper bar (100) by means of bolts.

10. The roadbed widening and splicing roadbed expansion structure according to any one of claims 1 to 8, characterized in that: The material of the track sleeper strip (100) and the track portion (200) is aluminum.

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