Rapidly-assembled roadbed structure for road pavement

Abstract

The utility model discloses a road paving fast-assembly type roadbed structure which comprises a backfill layer and a reinforcing layer, the reinforcing layer is arranged at the bottom of the backfill layer, the backfill layer is filled with filler, the reinforcing layer comprises a plurality of reinforcing piles and a prefabricated roadbed plate, pile bodies at the bottoms of the reinforcing piles penetrate into the ground and are tightly connected with a foundation, and the prefabricated roadbed plate is arranged on the backfill layer. The multiple prefabricated roadbed plates are laid at the bottom of the backfill layer in a plane mode, lap joint parts are arranged on the edges of the prefabricated roadbed plates, the adjacent prefabricated roadbed plates are fixed in a lap joint mode through the lap joint parts, and water permeable grooves are evenly formed in the surfaces of the prefabricated roadbed plates. A positioning groove and a positioning part are arranged at the position, located at the lap joint part of the edge, of the prefabricated roadbed plate, the positioning groove is matched with the positioning part, the multiple layers of backfilling layers are arranged, the prefabricated roadbed plate is made of a waterproof concrete material, and the filler is made of a recycled sand-gravel material. The reinforcing pile is of a prefabricated reinforced concrete pile or a steel pipe pile or a cement mixing pile structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of roadbed construction, and in particular relates to a road paving quick-installation roadbed structure. Background Art

[0002] The roadbed is the foundation of the track or road surface, and is a geotechnical structure formed by excavation or filling. The main function of the roadbed is to provide the necessary conditions for track or road surface laying and train or vehicle operation, and to bear the static and dynamic loads of the track and locomotive vehicles or road surface and traffic loads, while transferring and diffusing the loads deep into the foundation.

[0003] The traditional road paving roadbed backfill process often includes many complicated steps. The process includes excavation, filling, compaction and other links, which not only consumes a lot of time and energy, but also in actual operation, it is difficult to ensure the stability and surface flatness of the roadbed. Especially in the case of soft soil geology, road construction will undoubtedly increase the difficulty of backfilling and compaction work, as well as the challenge of ensuring the stability of the roadbed. Therefore, the utility model proposes a road paving quick-install roadbed structure, which is used for road construction under various geological conditions, and is particularly suitable for road construction under soft soil conditions; at the same time, rapid splicing and positioning can greatly shorten the road paving time and improve construction efficiency.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a road paving quick-install roadbed structure, including a backfill layer and a reinforcement layer, the reinforcement layer is arranged at the bottom of the backfill layer, the backfill layer is filled with filling material, the reinforcement layer includes a plurality of reinforcement piles and a prefabricated roadbed plate, the bottom pile bodies of the plurality of reinforcement piles are deep into the ground and tightly connected to the foundation, the prefabricated roadbed plate is arranged in plurality and laid in a plane at the bottom of the backfill layer, the edges of the prefabricated roadbed plates are provided with overlapping portions, adjacent prefabricated roadbed plates are overlapped and fixed to each other by the overlapping portions, and the surface of the prefabricated roadbed plates is evenly provided with permeable grooves.

[0006] As a preferred technical solution of the utility model, the prefabricated road substrate is provided with a positioning groove and a positioning portion at the overlapping portion at the edge, and the positioning groove and the positioning portion are matched.

[0007] As a preferred technical solution of the utility model, the backfill layer is provided with multiple layers.

[0008] As a preferred technical solution of the utility model, the prefabricated roadbed plate is made of waterproof concrete material.

[0009] As a preferred technical solution of the utility model, the filler material is recycled sand and gravel.

[0010] As a preferred technical solution of the utility model, the reinforcement piles are prefabricated reinforced concrete piles or steel pipe piles or cement soil mixing pile structures.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model can significantly improve the stability and bearing capacity of the roadbed and reduce the risk of foundation settlement and road deformation by setting the backfill layer and the reinforcement layer. It is used for road construction under various geological conditions, especially for road construction under soft soil conditions; at the same time, through the rapid splicing and positioning of the prefabricated roadbed, the road paving time can be greatly shortened and the construction efficiency can be improved. The backfilling material of recycled sand and gravel is not easy to compress and has good water permeability. At the same time, it can reduce damage to the environment and waste of resources, which is in line with the concept of environmental protection and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the prefabricated road base plate in the utility model;

[0016] In the figure: 1. backfill layer; 2. reinforcement layer; 3. filling material; 4. reinforcement piles; 5. prefabricated roadbed plate; 6. overlapping part; 7. permeable groove; 8. positioning groove; 9. positioning part. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example

[0019] See also Figure 1-2The utility model provides the following technical solutions: a road paving quick-install roadbed structure, including a backfill layer 1 and a reinforcement layer 2. The backfill layer 1 is intended to optimize the humidity and temperature control of the roadbed, ensure the strength, stiffness and stability of the surface layer and the base layer, effectively isolate the adverse effects of the soft soil layer at the bottom of the roadbed, and effectively disperse the stress generated by the vehicle load. The reinforcement layer 2 is characterized by excellent compaction and stability, which is used to isolate the soft soil layer at the bottom of the roadbed, and improve the overall stability and bearing capacity of the roadbed. The reinforcement layer 2 is located below the backfill layer 1, and the backfill layer 1 is filled with filler 3. The reinforcement layer 2 is composed of a plurality of reinforcement piles 4 and a prefabricated roadbed 5, wherein the bottom pile body of the reinforcement pile 2 is deep underground and closely connected to the foundation, providing strong support. The prefabricated roadbed 5 adopts a multi-piece design and is laid in a plane at the bottom of the backfill layer, that is, the top of the soft soil layer. The edge of the prefabricated roadbed 5 is designed with an overlap portion 6, and adjacent prefabricated roadbeds 5 are overlapped and fixed to each other through the overlap portion 6 to ensure a stable structure. In addition, permeable grooves 7 are evenly distributed on the surface of the prefabricated roadbed 5 to improve the drainage performance of the soft soil layer.

[0020] In order to achieve rapid positioning and fixation of adjacent prefabricated roadbed plates 5, in this embodiment, as a preferred technical solution of the utility model, the prefabricated roadbed plate 5 is provided with a positioning groove 8 and a positioning portion 9 at the overlapping portion 6 at the edge, and the positioning groove 8 and the positioning portion 9 are adapted to each other.

[0021] In order to increase the service life of the prefabricated roadbed plate 5, in this embodiment, as a preferred technical solution of the utility model, the prefabricated roadbed plate 5 is made of waterproof concrete material.

[0022] In order to reduce damage to the environment and waste of resources, in this embodiment, as a preferred technical solution of the utility model, the filler 3 is made of recycled sand and gravel.

[0023] In order to improve the stability and bearing capacity of the roadbed, in this embodiment, as a preferred technical solution of the utility model, the reinforcement pile 4 adopts a prefabricated reinforced concrete pile or steel pipe pile or cement soil mixing pile structure.

[0024] Finally, it should be noted that in the present utility model, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0025] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A quick-install roadbed structure for road paving, characterized in that: The invention comprises a backfill layer (1) and a reinforcement layer (2), wherein the reinforcement layer (2) is arranged at the bottom of the backfill layer (1), the backfill layer (1) is filled with a filling material (3), the reinforcement layer (2) comprises a plurality of reinforcement piles (4) and a prefabricated roadbed plate (5), the pile bodies at the bottom of the plurality of reinforcement piles (4) are deeply inserted into the ground and are closely connected to the foundation, the prefabricated roadbed plate (5) is arranged in a plurality and is laid in a plane at the bottom of the backfill layer (1), the edges of the prefabricated roadbed plate (5) are provided with overlapping portions (6), adjacent prefabricated roadbed plates (5) are overlapped and fixed to each other via the overlapping portions (6), and the surface of the prefabricated roadbed plate (5) is evenly provided with water-permeable grooves (7).

2. A road paving quick-install roadbed structure according to claim 1, characterized in that: The prefabricated road base plate (5) is provided with a positioning groove (8) and a positioning portion (9) at the overlapping portion (6) at the edge, and the positioning groove (8) and the positioning portion (9) are matched.

3. The quick-install roadbed structure for road paving according to claim 1, characterized in that: The backfill layer (1) is provided with multiple layers.

4. The quick-install roadbed structure for road paving according to claim 1, characterized in that: The prefabricated roadbed (5) is made of waterproof concrete material.

5. The quick-install roadbed structure for road paving according to claim 1, characterized in that: The filler (3) is made of recycled sand and gravel.

6. The quick-install roadbed structure for road paving according to claim 1, characterized in that: The reinforcement pile (4) adopts a prefabricated reinforced concrete pile or a steel pipe pile or a cement soil mixing pile structure.

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