Assembled precast slab column foundation

Abstract

The utility model discloses a kind of assembled precast slab column foundations, including first precast inclined column slab foundation and second precast inclined column slab foundation. First precast inclined column slab foundation includes horizontally arranged first bottom plate, first inclined column is arranged in the upper portion of first bottom plate. Second precast inclined column slab foundation includes horizontally arranged second bottom plate, second inclined column is arranged in the upper portion of second bottom plate. First precast inclined column slab foundation and second precast inclined column slab foundation are symmetrically arranged, first inclined column and second inclined column are arranged on the same vertical plane, and the upper end of first inclined column is fixedly connected with the upper end of second inclined column. The assembled precast slab column foundation of the utility model significantly improves the overall bearing capacity of foundation, is particularly suitable for foundation construction of high-voltage grade transmission line, has strong technical adaptability, and construction site assembly is simple, can be quickly assembled, cost control is good, and is suitable for large-scale promotion.

Description

Technical Field

[0001] This utility model relates to the field of power transmission line engineering, and in particular to a precast slab column foundation. Background Technology

[0002] In current power transmission line engineering, the commonly used foundation structure mainly includes the single inclined column slab foundation. This type of structure typically consists of inclined columns and a base slab, and can be completed by on-site casting. It features simple structure and convenient construction, and can meet the foundation load-bearing requirements of 110kV, 220kV, and even 500kV ultra-high voltage lines.

[0003] However, with the continuous increase in voltage levels and line loads, traditional single-column foundation structures are gradually failing to meet engineering requirements in terms of bearing capacity, especially under conditions such as high wind pressure and soft soil foundations, which can easily lead to safety hazards. In addition, in actual engineering projects, common cast-in-place foundations have strong construction dependence and are easily affected by human factors during construction, resulting in large quality fluctuations, long construction periods, and poor environmental adaptability. Utility Model Content

[0004] This utility model provides a prefabricated slab-column foundation that can significantly improve the overall bearing capacity of the foundation.

[0005] This utility model provides a precast slab-column foundation, including a first precast inclined column slab foundation and a second precast inclined column slab foundation. The first precast inclined column slab foundation includes a horizontally arranged first base slab and a first inclined column inclinedly arranged on the upper part of the first base slab. The second precast inclined column slab foundation includes a horizontally arranged second base slab and a second inclined column inclinedly arranged on the upper part of the second base slab. The first and second precast inclined column slab foundations are symmetrically arranged, with the first and second inclined columns on the same vertical plane. The upper ends of the first and second inclined columns are fixedly connected, and the first and second base slabs are fixedly connected.

[0006] In some embodiments, the first precast inclined column slab foundation further includes a first upper connector disposed at the upper end of the first inclined column. The second precast inclined column slab foundation further includes a second upper connector disposed at the upper end of the second inclined column. The first upper connector and the second upper connector are fixedly connected.

[0007] In some embodiments, the first upper connector includes a first vertical steel plate embedded in the first inclined column. The second upper connector includes a second vertical steel plate embedded in the second inclined column. The first vertical steel plate and the second vertical steel plate are fixedly connected by a first connecting bolt.

[0008] In some embodiments, the first precast inclined column slab foundation further includes a first lower connector disposed at the lower edge of the first base slab. The second precast inclined column slab foundation further includes a second lower connector disposed at the lower edge of the second base slab. The first lower connector and the second lower connector are fixedly connected.

[0009] In some embodiments, the first lower connector includes a first horizontal steel plate embedded in a first base plate. The second lower connector includes a second horizontal steel plate embedded in a second base plate. The first horizontal steel plate and the second horizontal steel plate are fixedly connected by a second connecting bolt.

[0010] In some embodiments, the precast slab column foundation further includes a first upper load-bearing plate and a second upper load-bearing plate. There are two first upper load-bearing plates, which are respectively positioned on the ground on both sides of the first inclined column when the first base slab is below ground level and the upper end of the first inclined column is above ground level. There are also two second upper load-bearing plates, which are respectively positioned on the ground on both sides of the second inclined column when the second base slab is below ground level and the upper end of the second inclined column is above ground level.

[0011] In some embodiments, the precast slab column foundation further includes a first lower load plate and a second lower load plate. There are two first lower load plates, each fixed to a first base plate on both sides of the first inclined column. There are also two second lower load plates, each fixed to a second base plate on both sides of the second inclined column.

[0012] In some embodiments, a first lower load plate is fixed to the upper part of a first base plate. A second lower load plate is fixed to the upper part of a second base plate.

[0013] In some embodiments, the first lower load plate is fixed to the first base plate by a first fixing bolt or welded to the first base plate. The second lower load plate is fixed to the second base plate by a second fixing bolt or welded to the second base plate.

[0014] In some embodiments, both the first base plate and the second base plate are fixed to the ground by anchor bolts or pre-embedded steel bars.

[0015] According to an embodiment of this utility model, a precast slab-column foundation is provided, comprising a first precast inclined column slab foundation and a second precast inclined column slab foundation. The first precast inclined column slab foundation includes a horizontally arranged first base slab and a first inclined column inclinedly arranged on the upper part of the first base slab. The second precast inclined column slab foundation includes a horizontally arranged second base slab and a second inclined column inclinedly arranged on the upper part of the second base slab. The first and second precast inclined column slab foundations are symmetrically arranged, with the first and second inclined columns on the same vertical plane, and the upper ends of the first and second inclined columns fixedly connected. This precast slab-column foundation of the present utility model symmetrically assembles the first and second precast inclined column slab foundations, and fixes the upper ends of the first and second inclined columns, as well as the first and second base slabs, to form a combined structure that bears the overall load. This structure significantly improves the overall load-bearing capacity of the foundation, making it particularly suitable for the foundation construction of high-voltage transmission lines. It has strong technical adaptability, is easy to assemble on-site, can be quickly assembled, has good cost control, and is suitable for large-scale promotion. Furthermore, the precast slab-column foundation of this invention is assembled from prefabricated first and second precast inclined column slab foundations. When applied to locations where cast-in-place foundations are inconvenient, its quality can be guaranteed compared to casting-in-place foundations in such locations. Additionally, while ensuring the overall load-bearing capacity of the foundation, compared to a single precast inclined column slab foundation, the first and second precast inclined column slab foundations in the precast slab-column foundation of this invention can be manufactured to a smaller size, thus facilitating transportation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the prefabricated slab column foundation in an embodiment of this utility model;

[0018] Figure 2 This is a top view of the assembled precast slab column foundation in this embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the first precast inclined column slab foundation in this embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the second prefabricated inclined column slab foundation in this embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure after the second prefabricated inclined column slab foundation and the second upper load plate are assembled in this embodiment of the present invention;

[0022] Figure 6 This is a top view of the second prefabricated inclined column slab foundation and the second upper load plate assembled in this embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure after the second prefabricated inclined column slab foundation and the second lower load plate are assembled in an embodiment of this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] See Figure 1-7 The present invention provides a prefabricated slab-column foundation, including a first prefabricated inclined slab foundation 1 and a second prefabricated inclined slab foundation 2, and may also include a first upper load plate, a second upper load plate 3, a first lower load plate and a second lower load plate 4.

[0026] The first precast inclined column slab foundation 1 includes a horizontally arranged first base slab 11 and a first inclined column 12 inclinedly arranged on the upper part of the first base slab 11. It may also include a first upper connector 13 located at the upper end of the first inclined column 12 and a first lower connector 14 located at the lower edge of the first base slab 11. The first precast inclined column slab foundation 1 is prefabricated in the factory and then transported to the site. The first base slab 11 can be fixed to the ground with anchor bolts or pre-embedded reinforcing bars. Therefore, the first lower connector 14 can be fixed to the ground with anchor bolts or pre-embedded reinforcing bars. The first upper connector 13 can be a first vertical steel plate embedded in the first inclined column 12. The first lower connector 14 can be a first horizontal steel plate pre-embedded in the first base slab 11.

[0027] The second precast inclined column slab foundation 2 includes a horizontally arranged second base slab 21 and a second inclined column 22 inclinedly arranged on the upper part of the second base slab 21. It may also include a second lower connector 24 located at the upper end of the second inclined column 22 and at the lower edge of the second base slab 21. The second precast inclined column slab foundation 2 is prefabricated in the factory and then transported to the site. The second base slab 21 can be fixed to the ground with anchor bolts or pre-embedded reinforcing bars. Therefore, the second lower connector 24 can be fixed to the ground with anchor bolts or pre-embedded reinforcing bars. The second upper connector 23 can be a second vertical steel plate embedded in the second inclined column 22. The second lower connector 24 can be a second horizontal steel plate pre-embedded in the second base slab 21.

[0028] Under the above conditions, the first precast inclined column slab foundation 1 and the second precast inclined column slab foundation 2 are symmetrically arranged. The first inclined column 12 and the second inclined column 22 are arranged on the same vertical plane. The upper ends of the first inclined column 12 and the second inclined column 22 are fixedly connected. The first base plate 11 and the second base plate 21 are fixedly connected. The above arrangement achieves structural reinforcement, thereby improving the overall rigidity and load-bearing capacity. For this purpose, the first upper connector 13 and the second upper connector 23 can be fixedly connected. Specifically, the first vertical steel plate and the second vertical steel plate can be fixedly connected by the first connecting bolt. The above bolt connection method allows for disassembly and replacement, facilitating maintenance. The first lower connector 14 and the second lower connector 24 can be fixedly connected. Specifically, the first horizontal steel plate and the second horizontal steel plate can be fixedly connected by the second connecting bolt. The above bolt connection method allows for disassembly and replacement, facilitating maintenance.

[0029] There can be two first upper load plates. When the first base plate 11 is below the ground and the upper end of the first inclined column 12 is above the ground, the two first upper load plates can be respectively set on the ground on both sides of the first inclined column 12. The above-mentioned arrangement is used to improve pull-out resistance. The above-mentioned first upper load plates can be added on site according to geological conditions. That is to say, the first upper load plates can be flexibly added to enhance pull-out resistance and adapt to different geological environments.

[0030] The number of second upper load plates 3 can be two. When the second base plate 21 is below the ground and the upper end of the second inclined column 22 is above the ground, the two second upper load plates 3 can be respectively set on the ground on both sides of the second inclined column 22. The above-mentioned arrangement is used to improve pull-out resistance. The above-mentioned second upper load plates 3 can be added on site according to geological conditions. That is to say, the second upper load plates 3 can be flexibly added to enhance pull-out resistance and adapt to different geological environments.

[0031] There can be two first lower load plates, which can be fixed to the first base plates 11 on both sides of the first inclined column 12. This arrangement is used to improve pull-out resistance. The first lower load plates can be fixed to the upper part of the first base plate 11. The first lower load plates can be fixed to the first base plate 11 by first fixing bolts or welded to the first base plate 11. The aforementioned first lower load plates can be added on-site according to geological conditions; that is, first lower load plates can be flexibly added to enhance pull-out resistance and adapt to different geological environments.

[0032] There can be two second lower load plates 4, which can be fixed to the second base plates 21 on both sides of the second inclined column 22, respectively. This arrangement is used to improve pull-out resistance. The second lower load plates 4 can be fixed to the upper part of the second base plate 21. The second lower load plates 4 can be fixed to the second base plate 21 by second fixing bolts or welded to the second base plate 21. The aforementioned second lower load plates 4 can be added on-site according to geological conditions; that is, second lower load plates 4 can be flexibly added to enhance pull-out resistance and adapt to different geological environments.

[0033] This utility model's modular precast slab-column foundation symmetrically assembles a first precast inclined column slab foundation 1 and a second precast inclined column slab foundation 2, and fixes the upper end of the first inclined column 12 to the upper end of the second inclined column 22, and fixes the first base plate 11 to the second base plate 21, forming an integral load-bearing combined structure. This structure significantly improves the overall bearing capacity of the foundation without increasing molds or changing the production line, and is particularly suitable for the foundation construction of high-voltage transmission lines. It has strong technical adaptability, is easy to assemble on the construction site, can be quickly assembled, has good cost control, and is suitable for large-scale promotion.

[0034] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precast slab-column foundation, characterized in that, The foundation includes a first precast inclined column slab foundation and a second precast inclined column slab foundation. The first precast inclined column slab foundation includes a horizontally arranged first base slab and a first inclined column inclinedly arranged on the upper part of the first base slab. The second precast inclined column slab foundation includes a horizontally arranged second base slab and a second inclined column inclinedly arranged on the upper part of the second base slab. The first precast inclined column slab foundation and the second precast inclined column slab foundation are symmetrically arranged, the first inclined column and the second inclined column are arranged on the same vertical plane, the upper end of the first inclined column is fixedly connected to the upper end of the second inclined column, and the first base slab is fixedly connected to the second base slab.

2. The precast slab-column foundation as described in claim 1, characterized in that, The first precast inclined column slab foundation further includes a first upper connector disposed at the upper end of the first inclined column; the second precast inclined column slab foundation further includes a second upper connector disposed at the upper end of the second inclined column; the first upper connector and the second upper connector are fixedly connected.

3. The precast slab-column foundation as described in claim 2, characterized in that, The first upper connecting member includes a first vertical steel plate embedded in the first inclined column; the second upper connecting member includes a second vertical steel plate embedded in the second inclined column; the first vertical steel plate and the second vertical steel plate are fixedly connected by a first connecting bolt.

4. The precast slab-column foundation as described in claim 1, characterized in that, The first precast inclined column slab foundation further includes a first lower connector disposed at the lower edge of the first base plate; the second precast inclined column slab foundation further includes a second lower connector disposed at the lower edge of the second base plate; the first lower connector and the second lower connector are fixedly connected.

5. The precast slab-column foundation as described in claim 4, characterized in that, The first lower connecting member includes a first horizontal steel plate embedded in the first base plate; the second lower connecting member includes a second horizontal steel plate embedded in the second base plate; the first horizontal steel plate and the second horizontal steel plate are fixedly connected by a second connecting bolt.

6. The precast slab-column foundation as described in claim 1, characterized in that, It also includes a first upper load plate and a second upper load plate; the first upper load plate includes two plates, which are respectively set on the ground on both sides of the first inclined column when the first base plate is below the ground and the upper end of the first inclined column is above the ground; the second upper load plate includes two plates, which are respectively set on the ground on both sides of the second inclined column when the second base plate is below the ground and the upper end of the second inclined column is above the ground.

7. The precast slab-column foundation as described in claim 1, characterized in that, It also includes a first lower load plate and a second lower load plate; the first lower load plate includes two plates, and the two first lower load plates are respectively fixed on the first base plate on both sides of the first inclined column; the second lower load plate includes two plates, and the two second lower load plates are respectively fixed on the second base plate on both sides of the second inclined column.

8. The precast slab-column foundation as described in claim 7, characterized in that, The first lower load plate is fixed to the upper part of the first base plate; the second lower load plate is fixed to the upper part of the second base plate.

9. The precast slab-column foundation as described in claim 7, characterized in that, The first lower load plate is fixed to the first base plate by a first fixing bolt or welded to the first base plate; the second lower load plate is fixed to the second base plate by a second fixing bolt or welded to the second base plate.

10. The precast slab-column foundation as described in claim 1, characterized in that, Both the first base plate and the second base plate are fixed to the ground by anchor bolts or pre-embedded steel bars.

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