Temporary plugging structure for underground structure top plate hole

Abstract

The utility model provides an underground structure top plate hole temporary plugging structure which comprises a retaining wall arranged above a top plate and surrounding the outside of a hole, and the top of the retaining wall is provided with a tongue-and-groove; the cover plate group comprises a plurality of cover plates which are transversely arranged one by one, and the cover plate group is arranged in the tongue-and-groove to seal the top opening of the retaining wall; the waterproof layer is laid on the cover plate group; and the pavement layer is paved on the waterproof layer. According to the utility model, construction and dismantling are effectively facilitated, the construction cost can be effectively reduced, the construction time is shortened, and a good leakproof effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, and particularly to the technical field of underground structure construction. Background Art

[0002] Underground structures refer to various factory structures built deep underground or underwater. Most underground structures have holes reserved on the top plate for subsequent construction, maintenance and other operations. In the cover-and-cut method, secondary construction of underground structures or traffic relief road construction, it is often necessary to temporarily block the holes on the top plate to create a construction site or build a new road on the hole.

[0003] At present, the temporary plugging of holes in the top plate of underground structures is often done by pouring concrete. The structure is relatively strong, but the construction time is long and the removal is difficult. Some construction units also use customized top covers for plugging, which is convenient for removal. However, the cost is high and there are often leakage problems. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art and to provide a temporary plugging structure for holes in the top plate of an underground structure which is easy to construct and dismantle and has strong anti-leakage performance.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A temporary plugging structure for holes in the top plate of an underground structure, comprising:

[0007] A retaining wall is arranged above the top plate and surrounds the hole, and a tongue and groove is arranged on the top of the retaining wall;

[0008] A cover plate group, comprising a plurality of cover plates arranged one by one in a transverse direction, wherein the cover plate group is arranged in the tongue and groove to close the top opening of the retaining wall;

[0009] A waterproof layer, laid on the cover plate group;

[0010] The pavement layer is laid on the waterproof layer.

[0011] Preferably, each of the cover plates is respectively provided with at least one hanging ring.

[0012] Preferably, the cover plate is in the shape of an elongated strip, and the number of the hanging rings on the cover plate is at least two and they are spaced apart and distributed along the length direction of the cover plate.

[0013] Preferably, the hanging ring protrudes upward from the cover plate, and the upper edge of the hanging ring is buried in the pavement layer.

[0014] Preferably, the cover plate is a reinforced concrete plate.

[0015] Preferably, the cover plates are of the same shape and size.

[0016] Preferably, the pavement layer is a plain concrete layer.

[0017] Preferably, the retaining wall is a reinforced concrete wall, and the bottom of the steel bars is pre-buried in the top plate.

[0018] Preferably, the waterproof layer is a waterproof roll.

[0019] Preferably, the top surface of the cover plate is flush with the top surface of the retaining wall and lower than the surrounding road surface, and the top surface of the road surface layer is flush with the surrounding road surface.

[0020] The beneficial effects of the utility model are as follows: a temporary blocking structure for the holes in the top plate of the underground structure is provided, a retaining wall is arranged around the hole, and a tongue and groove is arranged on the top of the retaining wall, the cover plate group can be accurately and firmly placed on the top of the retaining wall to close the top opening of the retaining wall, and the cover plate group includes a plurality of cover plates, each of which is relatively small in size, and is convenient for processing, manufacturing and disassembly and assembly; the waterproof layer laid on the cover plate group can enhance the anti-leakage effect, and the pavement layer laid on the waterproof layer can provide a construction site or road, and when demolition is required, it is only necessary to remove the pavement layer and the waterproof layer first, and then take out the cover plates, and the taken out cover plates can also be used for similar projects in the future. In this way, the utility model effectively facilitates construction and demolition, can effectively reduce construction costs, shorten construction time, and has a good anti-leakage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a schematic diagram of the top view of the structure after the waterproof layer and the pavement layer are removed in the preferred embodiment of the utility model;

[0023] Figure 2 It is a cross-sectional structural diagram of a preferred embodiment of the utility model.

[0024] Among them, the reference numerals in the figure are:

[0025] 11. Retaining wall; 12. Cover plate; 13. Waterproof layer; 14. Pavement layer; 15. Lifting ring; 21. Top plate; 22. Holes. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Reference Figure 1 and Figure 2 A preferred embodiment of the utility model is a temporary plugging structure for holes in the top plate of an underground structure, comprising: a retaining wall 11, arranged above a top plate 21 and surrounding the outside of a hole 22, a tongue and groove being arranged on the top of the retaining wall 11; a cover plate group, comprising a plurality of cover plates 12 arranged one by one transversely, the cover plate group being arranged in the tongue and groove to close the top opening of the retaining wall 11; a waterproof layer 13, laid on the cover plate group; and a pavement layer 14, laid on the waterproof layer 13. The temporary blocking structure of the holes in the top plate of the local underground structure has a retaining wall 11 arranged around the hole 22, and a tongue and groove is arranged on the top of the retaining wall 11. The cover plate group can be accurately and firmly placed on the top of the retaining wall 11 to close the top opening of the retaining wall 11, and the cover plate group includes a plurality of cover plates 12. Each cover plate 12 is relatively small in size, which is convenient for processing, manufacturing and disassembly. The waterproof layer 13 laid on the cover plate group can enhance the anti-leakage effect, and the pavement layer 14 laid on the waterproof layer 13 can provide a construction site or road. When demolition is required, it is only necessary to remove the pavement layer 14 and the waterproof layer 13 first, and then take out each cover plate 12. The taken out cover plates 12 can also be used for similar projects in the future. In this way, the utility model effectively facilitates construction and demolition, can effectively reduce construction costs, shorten construction time, and has a good anti-leakage effect.

[0029] As a preferred embodiment of the utility model, it may also have the following additional technical features:

[0030] In this embodiment, each cover plate 12 is provided with at least one lifting ring 15, so that the installation and removal of the cover plate 12 are convenient and the construction is further convenient.

[0031] In the present embodiment, the cover plate 12 is in the shape of an elongated strip, and the number of the lifting rings 15 on the cover plate 12 is at least two and they are spaced apart along the length direction of the cover plate 12. This can facilitate the stability of the cover plate 12 during construction and make the force on the cover plate 12 more uniform, making the cover plate 12 less likely to be damaged. In the present embodiment, the number of the lifting rings 15 on each cover plate 12 is two. In other embodiments, the number of the lifting rings 15 on the cover plate 12 can also be selected as needed, such as one, three, four, or any other number, and the distribution method can also be flexibly adjusted as needed, and is not limited to this.

[0032] In this embodiment, the lifting ring 15 protrudes upward from the cover plate 12, and the upper edge of the lifting ring 15 is buried in the pavement layer 14, so that during the installation and removal process, the lifting ring 15 can be conveniently hooked for easy operation. After the construction is completed, the lifting ring 15 will not protrude from the pavement layer 14, so that the pavement layer 14 remains flat, which is convenient for subsequent construction or use as a road.

[0033] In this embodiment, the cover plate 12 is a reinforced concrete plate, which has a strong structure, strong load-bearing capacity, low cost, and is easy to obtain during construction. In other embodiments, the cover plate 12 can also be made of other suitable materials, but is not limited thereto.

[0034] In this embodiment, the shapes and sizes of the cover plates 12 are the same, so that it is convenient to manufacture and disassemble. In other embodiments, the cover plates 12 can also adopt different shapes and sizes as needed.

[0035] In this embodiment, the pavement layer 14 is a plain concrete layer, which is also convenient for obtaining materials and laying in engineering construction operations, has low cost, and is not prone to damage. In other embodiments, the pavement layer 14 can also be made of other suitable materials such as asphalt as needed, but is not limited thereto.

[0036] In this embodiment, the retaining wall 11 is a reinforced concrete wall, and the bottom of the steel bar is pre-buried in the top plate 21, which is also convenient for obtaining materials and building in engineering construction, and the structure is firm and reliable, and is not easy to be damaged or tilted. In other embodiments, the retaining wall 11 can also adopt other suitable structures such as brick wall structure, but is not limited thereto.

[0037] In this embodiment, the waterproof layer 13 is a waterproof coiled material, which is low in cost, not easy to damage, and easy to lay and remove. Waterproof coiled materials are widely used in the field of building construction and are not described in detail here. In other embodiments, the waterproof layer 13 can also be made of other suitable materials, but is not limited to this.

[0038] In this embodiment, the top surface of the cover plate 12 is flush with the top surface of the retaining wall 11 and lower than the surrounding road surface, and the top surface of the pavement layer 14 is flush with the surrounding road surface. This makes it convenient to use as a construction site or road. On the other hand, there is no need to cover the cover plate 12 with soil to compensate for the height difference, which can reduce the load received by the cover plate 12 and make the cover plate 12 less likely to break or be damaged.

[0039] In this embodiment, the hole 22 is rectangular, and the cover plates 12 are arranged one by one along the long side direction of the hole 22, so that the length of the cover plates 12 can be reduced and the load-bearing capacity can be improved. In other embodiments, the shape and arrangement direction of the cover plates 12 can be adjusted according to the actual conditions such as the shape of the hole 22.

[0040] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0041] The above description is only a preferred implementation mode of the present utility model. Any technical solution that achieves the purpose of the present utility model by basically the same means belongs to the protection scope of the present utility model.

Claims

1. A temporary plugging structure for holes in the roof of an underground structure, characterized in that: include: A retaining wall (11) is arranged above the top plate (21) and surrounds the outside of the hole (22), and a tongue and groove is arranged on the top of the retaining wall (11); A cover plate group, comprising a plurality of cover plates (12) arranged one by one in a transverse direction, wherein the cover plate group is arranged in the tongue and groove to close the top opening of the retaining wall (11); A waterproof layer (13) is laid on the cover plate assembly; The pavement layer (14) is laid on the waterproof layer (13).

2. A temporary plugging structure for underground structure top hole according to claim 1, characterized in that: Each of the cover plates (12) is respectively provided with at least one hanging ring (15).

3. A temporary plugging structure for underground structure top hole according to claim 2, characterized in that: The cover plate (12) is in the shape of an elongated strip, and the number of the hanging rings (15) on the cover plate (12) is at least two and they are spaced apart and distributed along the length direction of the cover plate (12).

4. The temporary plugging structure for underground structure top hole according to claim 2, characterized in that: The lifting ring (15) protrudes upward from the cover plate (12), and the upper edge of the lifting ring (15) is buried in the road surface layer (14).

5. The temporary plugging structure for underground structure top hole according to claim 1, characterized in that: The cover plate (12) is a reinforced concrete plate.

6. The temporary plugging structure for underground structure top hole according to claim 1, characterized in that: The cover plates (12) have the same shape and size.

7. The temporary plugging structure for underground structure top hole according to claim 1, characterized in that: The pavement layer (14) is a plain concrete layer.

8. The temporary plugging structure for underground structure top hole according to claim 1, characterized in that: The retaining wall (11) is a reinforced concrete wall, and the bottom of the steel bars is pre-buried in the top plate (21).

9. The temporary plugging structure for underground structure top hole according to claim 1, characterized in that: The waterproof layer (13) is a waterproof coiled material.

10. The temporary plugging structure for underground structure top hole according to claim 1, characterized in that: The top surface of the cover plate (12) is flush with the top surface of the retaining wall (11) and lower than the surrounding road surface, and the top surface of the road surface layer (14) is flush with the surrounding road surface.

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