Raft foundation maintenance structure

Abstract

The utility model relates to the field of building construction, and discloses a raft foundation maintenance structure which comprises a foundation body, a first raft foundation is arranged at the top of the foundation body, a drainage assembly is arranged at the top of the first raft foundation, first temperature guide columns are fixedly connected to the left side and the right side of the inner wall of the first raft foundation, and second temperature guide columns are fixedly connected to the left side and the right side of the inner wall of the first raft foundation. A second raft foundation is arranged at the top of the first raft foundation, second heat conduction columns are fixedly connected to the four corners of the inner wall of the second raft foundation, a first heat preservation layer is arranged at the top of the second raft foundation, and a second heat preservation layer is arranged at the top of the first heat preservation layer; the four corners of the top of the second heat preservation layer are slidably connected with bolts. According to the utility model, the second temperature guide column, the first temperature guide column, the first raft foundation and other parts are matched for use, so that the temperature maintenance requirement on each layer can be effectively improved in the maintenance process, the maintenance quality is improved, and the maintenance speed is increased.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a raft foundation maintenance structure. Background Art

[0002] Raft foundation, also known as raft foundation or floating raft foundation, is a large-area foundation used to evenly distribute the load of a building to the entire foundation, especially suitable for heavy loads or low soil bearing capacity. After the raft foundation is poured, it needs to be cured. Ensuring proper curing conditions (such as maintaining sufficient humidity and appropriate temperature) is a necessary condition for the normal hydration reaction, which helps the concrete achieve the expected strength and durability.

[0003] After searching, Chinese patent announcement number: CN210887221U discloses a raft foundation maintenance structure, including a raft foundation, the surface of the raft foundation is sequentially provided with a plastic film, a first insulation layer, a second insulation layer and a waste formwork from bottom to top, and the waste formwork is fixedly connected to the raft foundation; a plurality of test axes are provided on the raft foundation, and at least 4 monitoring points are provided on each test axis, and at least 3 temperature sensors are vertically provided at each monitoring point along the thickness direction of the raft foundation, and all the temperature sensors there are electrically connected to a thermometer there through sensor wires. The maintenance structure of the utility model effectively reduces the heat and moisture loss on the concrete surface and reduces the temperature gradient, and the next structure construction can be carried out on the waste formwork in a relatively short time, which can ensure continuous construction, and does not affect the maintenance of the raft foundation, thus shortening the construction period.

[0004] However, during the use of the above-mentioned maintenance structure, plastic film, the first insulation layer, the second insulation layer and waste formwork are used to reduce temperature loss. Although insulation can be achieved, it also blocks the temperature radiation of the daytime sun, resulting in asynchronous maintenance effects of each layer of the maintenance structure, thereby reducing the maintenance quality. For this reason, a raft foundation maintenance structure is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a raft foundation maintenance structure, aiming to improve the problem in the prior art that the maintenance temperatures of various layers of the maintenance structure are different, thereby reducing the maintenance quality.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a raft foundation maintenance structure, including a foundation body, a first raft foundation is arranged on the top of the foundation body, a drainage assembly is arranged on the top of the first raft foundation, first thermal conductivity columns are fixedly connected to the left and right sides of the inner wall of the first raft foundation, a second raft foundation is arranged on the top of the first raft foundation, second thermal conductivity columns are fixedly connected to the four corners of the inner wall of the second raft foundation, a first thermal insulation layer is arranged on the top of the second raft foundation, a second thermal insulation layer is arranged on the top of the first thermal insulation layer, bolts are slidably connected to the four corners of the top of the second thermal insulation layer, and a threaded layer is arranged on the inner wall of the second thermal conductivity column.

[0007] As a further description of the above technical solution:

[0008] The drainage component includes a lower guide groove, which is opened at the top middle end of the first raft foundation, an upper guide groove is opened at the bottom middle end of the second raft foundation, and a drainage groove is opened at the top middle end of the first raft foundation.

[0009] As a further description of the above technical solution:

[0010] The threaded layer is arranged on the inner wall of the first temperature conducting column.

[0011] As a further description of the above technical solution:

[0012] The bolts sequentially penetrate the second thermal insulation layer, the first thermal insulation layer, and the second raft foundation and are threadedly connected to the inner walls of the second thermal conduction column and the first thermal conduction column.

[0013] As a further description of the above technical solution:

[0014] One of the drainage grooves is opened at the middle end of the inner wall of the second raft foundation.

[0015] As a further description of the above technical solution:

[0016] The inner wall of the second temperature conducting column is provided with carbon nanotubes.

[0017] As a further description of the above technical solution:

[0018] The lower guide groove is connected with the drainage groove.

[0019] As a further description of the above technical solution:

[0020] The second temperature conducting columns are slidably connected to the top four corners of the first raft foundation.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by using the second temperature conducting column, the first temperature conducting column, the first raft foundation and other components in coordination, the temperature maintenance requirement for each layer can be effectively improved during the maintenance process, the maintenance quality can be improved, and the maintenance speed can be accelerated.

[0023] 2. In the utility model, through the coordinated use of the drainage trough, the steel pipe layer, the upper guide trough and other components, the water flow that affects the maintenance can be directed during the maintenance process, thereby ensuring the maintenance temperature, and can increase the laying speed and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic cross-sectional structure diagram of a raft foundation maintenance structure proposed by the utility model;

[0025] Figure 2 A schematic diagram of the cross-sectional structure of a second temperature conducting column of a raft foundation maintenance structure proposed by the utility model;

[0026] Figure 3 A schematic diagram of a three-dimensional explosion structure of a raft foundation maintenance structure proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of a top view structure of a first raft foundation of a raft foundation maintenance structure proposed by the utility model.

[0028] Legend:

[0029] 1. Foundation body; 2. First raft foundation; 3. First thermal conductivity column; 4. Lower diversion trough; 5. Second raft foundation; 6. Upper diversion trough; 7. Second thermal conductivity column; 8. First thermal insulation layer; 9. Second thermal insulation layer; 10. Bolts; 11. Threaded layer; 12. Drainage trough. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-Figure 3The utility model provides an embodiment: a raft foundation maintenance structure, including a foundation body 1, a first raft foundation 2 is arranged on the top of the foundation body 1, a drainage assembly is arranged on the top of the first raft foundation 2, first thermal conductive columns 3 are fixedly connected to the left and right sides of the inner wall of the first raft foundation 2, a second raft foundation 5 is arranged on the top of the first raft foundation 2, second thermal conductive columns 7 are fixedly connected to the four corners of the inner wall of the second raft foundation 5, a first thermal insulation layer 8 is arranged on the top of the second raft foundation 5, a second thermal insulation layer 9 is arranged on the top of the first thermal insulation layer 8, bolts 10 are slidably connected to the four corners of the top of the second thermal insulation layer 9, and a threaded layer 11 is arranged on the inner wall of the second thermal conductive column 7.

[0032] The first raft foundation 2 is fixed on the top of the foundation body 1 by lifting, pouring and bonding, and then the second raft foundation 5 is lifted and cast on the top of the first raft foundation 2 by lifting. During the lifting process, the second thermal conductivity column 7 preset and fixed at the bottom of the raft foundation slides into the reserved through groove on the top of the first raft foundation 2 through multiple enemies, so that the first thermal conductivity column 3 and the second thermal conductivity column 7 can form contact with each other, and the raised second thermal conductivity column 7 helps the construction unit to locate the position of the second raft foundation 5.

[0033] After the second raft foundation 5 is positioned, the first insulation layer 8 and the second insulation layer 9 can be laid on the top of the second raft foundation 5 in turn, and the connection between the second insulation layer 9, the first insulation layer 8, the second raft foundation 5 and the first raft foundation 2 can be strengthened by setting bolts 10 from the top. In the subsequent maintenance process, the overall thermal conductivity effect is improved through daytime sunlight exposure through the bolts 10 and the carbon nanotubes set inside the second thermal conductive column 7 and the first thermal conductive column 3, thereby effectively shortening the maintenance time and effectively enhancing the connection state between each layer.

[0034] Since the water content of the ground base body 1 at the bottom of different raft foundations is different, the upper guide groove 6 and the lower guide groove 4 can respectively collect the water between each layer into the drainage groove 12, and after maintenance is completed, the water is discharged through the drainage groove 12 that can penetrate the first raft foundation 2 and the second raft foundation 5.

[0035] Reference Figure 1-Figure 2 The bolt 10 sequentially penetrates the second insulation layer 9, the first insulation layer 8, and the second raft foundation 5 and is threadedly connected to the inner wall of the second thermal conductive column 7 and the first thermal conductive column 3, and the threaded layer 11 is arranged on the inner wall of the first thermal conductive column 3. The arrangement of the threaded layer 11 can help the bolt 10 to be fixed in multiple layers to reduce heat blocking.

[0036] Reference Figure 4The inner wall of the second temperature conducting column 7 is provided with carbon nanotubes. The carbon nanotubes provided can effectively improve the temperature transmission efficiency and ensure the maintenance temperature requirement between the first raft foundation 2 and the foundation body 1. The carbon nanotubes used are multi-walled carbon nanotubes, which are formed by concentrically rolling a single graphite layer into a tubular structure. The vertical design of the drainage groove 12, which intersects the lower guide groove 4 and the drainage groove 12, can reduce the influence of water seeping from different positions on the maintenance.

[0037] Reference Figure 1-Figure 3 The drainage component includes a lower guide groove 4, which is opened at the middle end of the top of the first raft foundation 2, an upper guide groove 6 is opened at the middle end of the bottom of the second raft foundation 5, and a drainage groove 12 is opened at the middle end of the top of the first raft foundation 2, one of the drainage grooves 12 is opened at the middle end of the inner wall of the second raft foundation 5, and the inner wall of the second raft foundation 5 is provided with drainage grooves 12 to penetrate in sequence.

[0038] Working principle: Before laying and pouring the raft foundation, the overall construction efficiency is improved by selecting a prefabricated foundation body 1. First, the first raft foundation 2 is fixed on the top of the foundation body 1 by hoisting and pouring bonding. Then the second raft foundation 5 is hoisted and cast and fixed on the top of the first raft foundation 2. During the hoisting process, the second temperature conducting column 7 preset and fixed at the bottom of the raft foundation is slid into the reserved through groove at the top of the first raft foundation 2 through multiple enemies, so that the first temperature conducting column 3 and the second temperature conducting column 7 can form contact with each other, and the raised second temperature conducting column 7 is used to help the construction unit locate the position of the second raft foundation 5.

[0039] After the second raft foundation 5 is positioned, the first insulation layer 8 and the second insulation layer 9 can be laid on the top of the second raft foundation 5 in turn, and the connection between the second insulation layer 9, the first insulation layer 8, the second raft foundation 5 and the first raft foundation 2 can be strengthened by setting bolts 10 from the top. In the subsequent maintenance process, the overall thermal conductivity effect is improved through daytime sunlight exposure through the bolts 10 and the carbon nanotubes set inside the second thermal conductive column 7 and the first thermal conductive column 3, thereby effectively shortening the maintenance time and effectively enhancing the connection state between each layer.

[0040] Since the water content of the ground base body 1 at the bottom of different raft foundations is different, the upper guide groove 6 and the lower guide groove 4 can respectively collect the water between each layer into the drainage groove 12, and after maintenance is completed, the water is discharged through the drainage groove 12 that can penetrate the first raft foundation 2 and the second raft foundation 5.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A raft foundation maintenance structure, comprising a foundation body (1), characterized in that: A first raft foundation (2) is arranged on the top of the foundation body (1), a drainage assembly is arranged on the top of the first raft foundation (2), first thermal conductive columns (3) are fixedly connected to the left and right sides of the inner wall of the first raft foundation (2), a second raft foundation (5) is arranged on the top of the first raft foundation (2), second thermal conductive columns (7) are fixedly connected to the four corners of the inner wall of the second raft foundation (5), a first thermal insulation layer (8) is arranged on the top of the second raft foundation (5), a second thermal insulation layer (9) is arranged on the top of the first thermal insulation layer (8), bolts (10) are slidably connected to the four corners of the top of the second thermal insulation layer (9), and a threaded layer (11) is arranged on the inner wall of the second thermal conductive column (7).

2. A raft foundation maintenance structure according to claim 1, characterized in that: The drainage assembly comprises a lower guide groove (4), the lower guide groove (4) is opened at the middle end of the top of the first raft foundation (2), an upper guide groove (6) is opened at the middle end of the bottom of the second raft foundation (5), and a drainage groove (12) is opened at the middle end of the top of the first raft foundation (2).

3. A raft foundation maintenance structure according to claim 1, characterized in that: The threaded layer (11) is arranged on the inner wall of the first temperature conducting column (3).

4. A raft foundation maintenance structure according to claim 1, characterized in that: The bolts (10) sequentially penetrate the second thermal insulation layer (9), the first thermal insulation layer (8), and the second raft foundation (5), and are threadedly connected to the inner walls of the second thermal conductive column (7) and the first thermal conductive column (3).

5. A raft foundation maintenance structure according to claim 2, characterized in that: One of the drainage grooves (12) is opened at the middle end of the inner wall of the second raft foundation (5).

6. A raft foundation maintenance structure according to claim 1, characterized in that: The inner wall of the second temperature conducting column (7) is provided with carbon nanotubes.

7. A raft foundation maintenance structure according to claim 2, characterized in that: The lower guide groove (4) and the drainage groove (12) are interconnected.

8. A raft foundation maintenance structure according to claim 1, characterized in that: The second temperature conducting column (7) is slidably connected to the top four corners of the first raft foundation (2).

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