Road and drainage ditch permanent and temporary combined structure applied in different construction stages

Abstract

The utility model discloses a road and drainage ditch permanent and temporary combination structure applied in different construction stages, which comprises a road body and a plain soil layer, and a large slag layer, a gravel layer, a concrete layer, a combination layer and a surface layer are sequentially laid on the plain soil layer from bottom to top; the two drainage ditches are arranged on the two sides of the road body in the width direction respectively, and a plurality of drainage pipes are connected between each drainage ditch and the road body. And the construction quality of a permanent road and the smoothness of temporary drainage in site construction are guaranteed, and certain popularization value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a permanent and temporary combined structure of a road and a drainage ditch applied in different construction stages. Background Art

[0002] In traditional construction, temporary roads and drainage ditches are constructed initially, and then demolition is required before permanent roads and drainage ditches can be constructed. This significantly increases construction costs. Furthermore, the roadbed may not be compacted enough during subsequent demolition and excavation, creating the risk of subsidence. If permanent roads are constructed up to the structural layer prematurely, the passage of large machinery can easily damage the road structure. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the existing technology and provide a permanent and temporary combination structure of roads and drainage ditches for application in different construction stages, which meets the temporary road needs in different construction periods, realizes the permanent and temporary combination of permanent roads and drainage ditches of the project, and ensures the construction quality of permanent roads and the smooth flow of temporary drainage during on-site construction.

[0004] In order to achieve the above technical effects, the utility model provides a permanent and temporary combined structure of a road and a drainage ditch applied in different construction stages, which includes:

[0005] The road body comprises a plain soil layer, on which a slag layer, a crushed stone layer, a concrete layer, a bonding layer and a surface layer are laid in order from bottom to top;

[0006] Two drainage ditches are respectively arranged on both sides of the road body along the width direction, and a plurality of drainage pipes are connected between each drainage ditch and the road body.

[0007] Preferably, the bottom elevation of the drainage ditch is below the bottom elevation of the large slag layer.

[0008] Preferably, two angle irons are fixedly mounted on both sides of the top of the drainage ditch, the openings of the two angle irons are in opposite directions, and a drainage ditch cover is laid between the openings.

[0009] Preferably, the top surface of the drainage ditch cover is flush with the surface of the surface layer.

[0010] Preferably, curbstones are provided on both sides of the road body on the outside of the corresponding drainage ditch, and the top elevation of the curbstones is higher than the top elevation of the drainage ditch cover and the surface layer.

[0011] Due to the adoption of the above technical solution, the technical effects achieved by the utility model are:

[0012] 1) Through the overall design of the drainage ditch and the road, the side walls of the drainage ditch can provide conditions for the layered and phased construction of the road, effectively achieving the effect of combining permanent and temporary roads, and improving the construction quality of the permanent road while meeting the road traffic requirements during the construction phase.

[0013] 2) The early construction of drainage ditches can effectively help drain the site and reduce the process of supporting the road side formwork.

[0014] 3) By pre-buried drainage pipes on the side walls of the drainage ditch, water accumulation can be prevented on the construction roads at various stages. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the nodes of the permanent and temporary combined structure of roads and drainage ditches used in different construction stages of the embodiment of the utility model.

[0017] Figure 2 for Figure 1 A magnified view of the structure at point A.

[0018] The corresponding relationship of the reference numbers in the accompanying drawings is as follows:

[0019] 1- Soil layer; 2- Slag layer; 3- Gravel layer; 4- Concrete layer; 5- Bonding layer and surface layer; 6- Drainage ditch; 7- Drainage pipe; 8- Angle iron; 9- Drainage ditch cover; 10- Curbstone. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a permanent combined structure of roads and drainage ditches applied in different construction stages, including a road body and two drainage ditches 6 respectively arranged on both sides of the road body along the width direction. The road body includes a bare soil layer 1, and a large slag layer 2, a crushed stone layer 3, a concrete layer 4, a bonding layer and a surface layer 5 are laid on the bare soil layer 1 in sequence from bottom to top.

[0022] Furthermore, a number of drainage pipes 7 are connected between each drainage ditch 6 and the road body. The bottom elevation of the drainage ditch 6 is below the bottom elevation of the large slag layer 2. Two angle irons 8 are fixedly installed on both sides of the top of the drainage ditch 6. The opening directions of the two angle irons 8 are opposite, and a drainage ditch cover 9 is laid between the openings. The top surface of the drainage ditch cover 9 is flush with the surface of the surface layer 5. Preferably, curbstones 10 are provided on the outside of the corresponding drainage ditches 6 on both sides of the road body. The top elevation of the curbstones 10 is higher than the top elevation of the drainage ditch cover 9 and the surface layer 5. It should be noted that in this embodiment, the thickness of the large slag layer 2 is 500 mm, the thickness of the crushed stone layer 3 is 200 mm, the concrete layer 4 uses C30 concrete with a laying thickness of 300 mm, and the thickness of the surface layer 5 is 100 mm.

[0023] The process flow of the permanent and temporary combined structure of the road and drainage ditch used in the utility model in different construction stages during actual construction includes:

[0024] Road excavation and roadbed compaction (construction during the site leveling stage) → Construction of permanent and temporary drainage ditches on both sides of the road → Filling of slag and gravel layers (foundation and foundation construction stage) → Concrete structure layer construction stage (main body and decoration and renovation stage) → Surface layer construction (construction after the outdoor garden is completed).

[0025] The key points of specific construction operations include:

[0026] 1) Road excavation and roadbed compaction

[0027] The roadbed is excavated according to the vertical design of the road. After the roadbed is mechanically compacted and tested to meet the design specifications, a large slag layer is filled. If the roadbed is located in a soft geological layer that cannot be compacted, grouting reinforcement or replacement filling can be used to reinforce the roadbed.

[0028] 2) Construction of permanent and temporary drainage ditches on both sides of the road

[0029] Vertical sections can be prefabricated and hoisted in sections, while curved sections or other connecting sections can be cast on-site. Before casting the drainage ditch, a temporary drainage pipe must be embedded on the roadside to facilitate drainage during subsequent construction. The bottom elevation of the drainage ditch is located below the bottom elevation of the slag layer to prevent water accumulation during use. Furthermore, the sidewalls of the drainage ditch on the roadside reduce the need for formwork in the concrete structure, and the outer side can be used as a curb, reducing costs.

[0030] 3) Filling of large slag layer and crushed stone layer

[0031] Depending on the site conditions, the slag layer can be filled with boulders or waste concrete from the original stratum, ensuring the required thickness is met. The gravel layer can then be laid after the slag layer has been filled and compacted. The slag and gravel layers are used during the foundation and subgrade construction phases. Firstly, they ensure the road's ability to pass after rain, reducing mud carried over from vehicles during the foundation and subgrade phases, ensuring civilized construction. Secondly, the use of large machinery during the foundation and subgrade phases can further compact the roadbed, reducing the risk of subsequent permanent road subsidence under heavy vehicle pressure. Furthermore, drainage pipes reserved in the sidewalls of the drainage ditch can promptly drain water from the slag and gravel layers.

[0032] 4) Construction of concrete structure layer

[0033] Due to the presence of drainage ditch sidewalls, the concrete structure layer eliminates the need for formwork. Only the pouring elevation needs to be controlled to ensure surface thickness. This phase serves as the on-site roadway for the main structure and decorative finishes. Large machinery has been phased out during this phase, minimizing damage to the concrete structure and facilitating transportation for the main structure and decorative finishes.

[0034] 5) Construction of drainage ditch angle iron and surface layer

[0035] After the concrete layer is completed, the angle irons for the gutter grooves on both sides can be installed. The installation method is as follows: Lay out the gutter grooves, then drill holes and insert rebar heads every 1 meter. Calculate the rebar heads according to the drawing elevations, and mark the angle iron elevations every 3 meters. Weld transverse rebar to facilitate placement and spot welding of the angle irons. Fill the gaps at the bottom of the angle irons with mortar or fine stone. Finally, construct the bonding layer and surface layer.

[0036] 6) Construction of drainage ditch wall surface layer

[0037] Before the construction of the ditch wall surface layer, the reserved large slag layer drainage pipe is sealed, and then waterproof mortar is used for plastering construction.

[0038] Any portion not described in the present invention is the same as the prior art or can be implemented using the prior art. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A permanent and temporary combined structure of roads and drainage ditches used in different construction stages, characterized in that: include: The road body comprises a plain soil layer, on which a slag layer, a crushed stone layer, a concrete layer, a bonding layer and a surface layer are laid in order from bottom to top; Two drainage ditches are respectively arranged on both sides of the road body along the width direction, and a plurality of drainage pipes are connected between each drainage ditch and the road body.

2. The permanent and temporary combined structure of road and drainage ditch used in different construction stages as claimed in claim 1, characterized in that: The bottom elevation of the drainage ditch is below the bottom elevation of the large slag layer.

3. The permanent and temporary combined structure of road and drainage ditch used in different construction stages as claimed in claim 1, characterized in that: Two angle irons are fixedly installed on both sides of the top of the drainage ditch, the openings of the two angle irons are in opposite directions, and a drainage ditch cover plate is laid between the openings.

4. The permanent and temporary combined structure of road and drainage ditch used in different construction stages as claimed in claim 1, characterized in that: The top surface of the drainage ditch cover is flush with the surface of the surface layer.

5. The permanent and temporary combined structure of road and drainage ditch used in different construction stages as claimed in claim 1, characterized in that: Curbstones are respectively provided on the outside of the corresponding drainage ditches on both sides of the road body, and the top elevation of the curbstones is higher than the top elevation of the drainage ditch cover and the surface layer.

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