CN212866234U

CN212866234U - Reinforcing structure of shallow drain pipe that buries

Info

Publication number: CN212866234U
Application number: CN202021210628.1U
Authority: CN
Inventors: 王建军
Original assignee: Jiangsu Zhusen Architectural Design Co Ltd
Current assignee: Jiangsu Zhusen Architectural Design Co Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-04-02
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a shallow reinforcement structure who buries drain pipe, including concrete package, reinforcing bar net, rubble bed course and drain pipe, concrete package cladding in the drain pipe is outside, the rubble bed course set up in the concrete is packaged the bottom, and the reinforcing bar net is located along length direction cover the top is packaged to the concrete. The gravel cushion layer in the reinforced structure is used as a base layer for encapsulating concrete and can be effectively connected with a lower soil layer; the concrete encapsulation adopts C25 concrete, and has good pressure resistance; the reinforcing mesh adopts bidirectional reinforcing bars and is arranged at the top of the concrete encapsulation, so that the strength of the concrete encapsulation can be increased, and the concrete encapsulation is prevented from cracking; a concrete protective layer with the thickness of 35mm is arranged outside the reinforcing mesh, so that the reinforcing mesh can be prevented from being corroded due to the influence of water and gas in the surrounding soil; the reinforced structure has the advantages of simple and reasonable structure design, easy construction and construction, low manufacturing cost and strong practicability.

Description

Reinforcing structure of shallow drain pipe that buries

Technical Field

The utility model relates to an outdoor buried drain pipe construction technical field, concretely relates to shallow reinforcement structure who buries the drain pipe.

Background

Influenced by external construction conditions, the buried depth of the outdoor buried drainage pipeline in some places is shallow, namely the thickness of the pipe top earthing is insufficient, the requirement of bearing and compression resistance of the pipeline is difficult to meet, for example, the escalator on the top of a basement roof is shallow, or the drainage pipeline is required to be buried shallowly for being connected with the elevation of the municipal drainage pipeline. Particularly, when the drainage pipeline is buried in a soil environment with high requirements on bearing capacity such as a road and the like, the bearing and pressure resistance of the drainage pipeline is insufficient due to insufficient depth of soil covering on the top of the pipeline, so that the hidden danger that the drainage pipeline is broken or deformed under pressure exists, and even a drainage accident is caused in severe cases, and therefore, the shallow-buried drainage pipeline needs to be reinforced to improve the bearing and pressure resistance of the pipeline. At present, the drainage pipeline reinforcement method is a five-flower eight-door method, the field construction is not based on the foundation, the construction progress of the outdoor buried drainage pipeline is severely restricted, and meanwhile, the later-period use safety is not guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a reinforcing structure of a shallow-buried drain pipe, wherein a broken stone cushion layer is used as a base layer for encapsulating concrete and can be effectively connected with a lower soil layer; the concrete encapsulation adopts C25 concrete, and has good pressure resistance; the reinforcing mesh adopts bidirectional reinforcing bars and is arranged at the top of the concrete encapsulation, so that the strength of the concrete encapsulation can be increased, and the concrete encapsulation is prevented from cracking; a concrete protective layer with the thickness of 35mm is arranged outside the reinforcing mesh, so that the reinforcing mesh can be prevented from being corroded due to the influence of water and air in the surrounding soil; the reinforced structure has the advantages of simple and reasonable structure design, easy construction and construction, low manufacturing cost and strong practicability.

In order to achieve the above object, the technical solution of the present invention is to design a reinforcement structure for a shallow drain pipe, including concrete packing, reinforcing mesh, gravel cushion and drain pipe, the concrete packing cover in the drain pipe is outside, the gravel cushion set up in the concrete packing bottom, the reinforcing mesh covers along length direction and locates the concrete packing top.

In the reinforcing structure of the shallow-buried drain pipe, the broken stone cushion layer is used as a base layer for encapsulating concrete and can be effectively connected with the lower soil layer; the concrete encapsulation has good pressure resistance; the reinforcing mesh adopts bidirectional reinforcing bars and is arranged at the top of the concrete encapsulation, so that the strength of the concrete encapsulation can be increased, and the concrete encapsulation is prevented from cracking; the reinforced structure has the advantages of simple and reasonable structure design, easy construction and construction, low manufacturing cost and strong practicability.

The preferable technical scheme is that the cross section of the reinforcing mesh is of an inverted U-shaped structure and comprises a top surface and side surfaces which are symmetrically arranged on two sides of the top surface and extend outwards in an inclined manner, an included angle between each side surface and the top surface is 135 degrees, and the width of the concrete encapsulation is larger than or equal to the distance between the lower end edges of the two side surfaces and is larger than or equal to the outer diameter of the drainage pipe. The structure and the size of the reinforcing mesh are simple and reasonable in design, so that the reinforcing mesh effectively increases the strength of the upper end (the main stressed position) of the concrete enclosure and prevents cracking, and the effective protection effect of the reinforcing mesh on the concrete enclosure is ensured.

Further preferred technical scheme still, the reinforcing bar net comprises phi 10 bidirectional reinforcing bars, and the spacing between the reinforcing bars is 50 mm. On the one hand, the protective effect of the reinforcing mesh on the concrete encapsulation is ensured, and on the other hand, the cost of the reinforcing mesh is reduced as much as possible.

Further preferably, the coating thickness of the concrete coated on the top of the drain pipe and the coating thickness of the concrete coated on the bottom of the drain pipe are both more than or equal to 100mm, and the coating thickness of the concrete coated on the two sides of the drain pipe is both more than or equal to 150 mm. On the one hand, the protection effect of the concrete encapsulation on the drain pipe is ensured, and on the other hand, the cost of the concrete encapsulation is reduced as much as possible.

In order to further ensure good pressure resistance and economy of the concrete encapsulation, a further preferred solution is to use a concrete encapsulation of the type C25 concrete.

In order to further ensure the supporting stability and firmness of the gravel cushion layer, the preferable technical scheme is that the thickness of the gravel cushion layer is more than or equal to 100mm, and the distance between two end parts of the cross section of the gravel cushion layer and the two side surfaces of the concrete envelope is more than or equal to 100 mm.

Further preferably, a concrete protective layer with the thickness of more than or equal to 35mm is arranged on the outer side of the top of the reinforcing mesh. The concrete protective layer can prevent the reinforcing mesh from being corroded due to the influence of water, air and the like in the surrounding soil.

The utility model has the advantages and the beneficial effects that:

1. in the reinforcing structure of the shallow-buried drain pipe, the broken stone cushion layer is used as a base layer for encapsulating concrete and can be effectively connected with the lower soil layer; the concrete encapsulation has good pressure resistance; the reinforcing mesh adopts bidirectional reinforcing bars and is arranged at the top of the concrete encapsulation, so that the strength of the concrete encapsulation can be increased, and the concrete encapsulation is prevented from cracking; the reinforced structure has the advantages of simple and reasonable structure design, easy construction and construction, low manufacturing cost and strong practicability.

2. The cross section of the reinforcing mesh is of an inverted U-shaped structure and comprises a top surface and side surfaces which are symmetrically arranged on two sides of the top surface and extend outwards in an inclined manner, an included angle between each side surface and the top surface is 135 degrees, and the width of the concrete encapsulation is not less than the distance between the lower end edges of the two side surfaces and not less than the outer diameter of the drainage pipe. The structure and the size of the reinforcing mesh are simple and reasonable in design, so that the reinforcing mesh effectively increases the strength of the upper end (the main stressed position) of the concrete enclosure and prevents cracking, and the effective protection effect of the reinforcing mesh on the concrete enclosure is ensured.

3. The reinforcing mesh is composed of phi 10 bidirectional reinforcing steel bars, and the distance between the reinforcing steel bars is 50 mm. On the one hand, the protective effect of the reinforcing mesh on the concrete encapsulation is ensured, and on the other hand, the cost of the reinforcing mesh is reduced as much as possible.

4. The coating thickness of the concrete coating on the top of the drain pipe and the coating thickness of the concrete coating on the bottom of the drain pipe are both larger than or equal to 100mm, and the coating thickness of the concrete coating on the two sides of the drain pipe is both larger than or equal to 150 mm. On the one hand, the protection effect of the concrete encapsulation on the drain pipe is ensured, and on the other hand, the cost of the concrete encapsulation is reduced as much as possible.

5. And a concrete protective layer with the thickness more than or equal to 35mm is further arranged on the outer side of the top of the reinforcing mesh. The concrete protective layer can prevent the reinforcing mesh from being corroded due to the influence of water, air and the like in the surrounding soil.

Drawings

Fig. 1 is a schematic cross-sectional structure view of the reinforcing structure of the shallow-buried drain pipe of the present invention.

In the figure: 1. encapsulating the concrete; 2. a reinforcing mesh; 3. a gravel cushion layer; 4. a drain pipe; 2-1, top surface; 2-2, side face.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Examples

As shown in fig. 1, the utility model relates to a shallow reinforcement structure who buries drain pipe, including concrete envelope 1, reinforcing bar net 2, rubble bed course 3 and drain pipe 4, concrete envelope 1 cladding in the outside of drain pipe 4, rubble bed course 3 set up in concrete envelope 1 bottom, reinforcing bar net 2 along length direction cover locate concrete envelope 1 top.

Preferably, the cross section of the reinforcing mesh 2 is of an inverted U-shaped structure and comprises a top surface 2-1 and side surfaces 2-2 which are symmetrically arranged on two sides of the top surface 2-1 and extend obliquely and outwards, an included angle between the side surfaces 2-2 and the top surface 2-1 is 135 degrees, and the width of the concrete envelope 1 is larger than or equal to the distance between the lower end edges of the two side surfaces 2-2 and is larger than or equal to the outer diameter of the drain pipe 4.

Further preferably, the mesh reinforcement 2 is composed of phi 10 bidirectional steel bars, and the distance between the steel bars is 50 mm.

Further preferably, the coating thickness of the concrete package 1 on the top of the drain pipe 4 and the coating thickness of the concrete package 1 on the bottom of the drain pipe 4 are both more than or equal to 100mm, and the coating thickness of the concrete package 1 on both sides of the drain pipe 4 is both more than or equal to 150 mm.

Further preferably, the concrete encapsulation 1 is made of C25 concrete.

Further preferably, the thickness of the gravel cushion layer 3 is more than or equal to 100mm, and the distance between two end parts of the cross section of the gravel cushion layer 3 and the two side surfaces of the concrete envelope 1 is more than or equal to 100 mm.

Further preferably, a concrete protective layer with the thickness more than or equal to 35mm is further arranged on the outer side of the top of the reinforcing mesh 2.

The construction principle of the reinforcement structure of the shallow drain pipe in the embodiment is as follows:

step 1: excavating a groove with the same width as the gravel cushion layer 3, and paving the gravel cushion layer 3 at the bottom of the groove;

step 2: pouring bottom layer C25 concrete with the thickness of more than or equal to 100mm above the gravel cushion layer 3, laying a drain pipe 4 in the length direction of the trench at the center position above the bottom layer C25 concrete, continuously pouring C25 concrete on the outer upper layer of the drain pipe 4, placing a reinforcing mesh 2 on the top of the upper layer C25 concrete, continuously pouring a concrete protective layer with the thickness of more than or equal to 35mm on the outer side surface of the top of the reinforcing mesh 2, and curing the C25 concrete to form a concrete package 1;

and step 3: soil is filled in the top of the reinforcement structure, so that the top is flush with the surrounding ground.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The reinforcing structure of the shallow-buried drain pipe is characterized by comprising a concrete enclosure (1), a reinforcing mesh (2), a gravel cushion layer (3) and a drain pipe (4), wherein the concrete enclosure (1) is coated outside the drain pipe (4), the gravel cushion layer (3) is arranged at the bottom of the concrete enclosure (1), and the reinforcing mesh (2) is covered at the top of the concrete enclosure (1) along the length direction.

2. The reinforcement structure of the shallow buried drain pipe according to claim 1, wherein the cross section of the reinforcing mesh (2) is of an inverted U-shaped structure, the reinforcing mesh comprises a top surface (2-1) and side surfaces (2-2) which are symmetrically arranged on two sides of the top surface (2-1) and extend obliquely and outwards in an expanding manner, an included angle between the side surfaces (2-2) and the top surface (2-1) is 135 degrees, and the width of the concrete envelope (1) is larger than or equal to the distance between the lower end edges of the two side surfaces (2-2) and is larger than or equal to the outer diameter of the drain pipe (4).

3. The reinforcement structure of a shallow buried drain pipe according to claim 2, wherein the mesh reinforcement (2) is composed of phi 10 bidirectional reinforcing bars with a pitch of 50 mm.

4. The reinforcement structure of the shallow buried drain pipe according to claim 3, wherein the coating thickness of the concrete envelope (1) on the top of the drain pipe (4) and the coating thickness of the concrete envelope (1) on the bottom of the drain pipe (4) are both equal to or more than 100mm, and the coating thickness of the concrete envelope (1) on both sides of the drain pipe (4) is both equal to or more than 150 mm.

5. The reinforcement construction of shallow buried drains according to claim 4, characterised in that the concrete envelope (1) is of the type C25 concrete.

6. The reinforcement structure of a shallow buried drain pipe according to claim 5, wherein the thickness of the gravel cushion layer (3) is more than or equal to 100mm, and the distance between the two end parts of the cross section of the gravel cushion layer (3) beyond the two side surfaces of the concrete envelope (1) is more than or equal to 100 mm.

7. The reinforcement structure of the shallow buried drain pipe according to claim 6, wherein the top outer side of the reinforcing mesh (2) is further provided with a concrete protective layer with the thickness of more than or equal to 35 mm.