Reinforcing device for improving bearing capacity of building foundation

Abstract

The utility model discloses a reinforcing device for improving the bearing capacity of a building foundation, which relates to the technical field of building engineering, and comprises a foundation, a top plate, a pile body and a column body, the drilling cavities are embedded in the top end of the foundation, the expanding table is attached to the periphery of the top plate to be fixed, the filling columns are arranged in the drilling cavities, the surrounding table is fixedly arranged at the top end of the top plate and the top end of the expanding table, and the frames are arranged in and fixed to the expanding table, the filling columns and the surrounding table. Part of the drilling cavities in the multiple sets of drilling cavities communicate with the outer side of the pile body, the bottom end of the expanding table is attached to the top end of the foundation, and the expanding table, the filling columns and the surrounding table are integrally formed. The utility model has the advantages that the supporting surface of the top plate to the foundation can be enlarged by arranging the expanding platform and the filling column, so that the bearing capacity is improved; one part of the drilling cavity is communicated with the outer side of the pile body, and even one part of the drilling cavity is embedded into the pile body, so that the formed packed column can be better connected with the pile body; and the surrounding table can improve the integral strength of the top plate and the expansion table, and the bearing capacity is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and more particularly to a reinforcement device for improving the bearing capacity of a building foundation. Background Art

[0002] The foundation refers to the load-bearing structure below the ground level of a building, such as foundation pits, caps, frame columns, and ground beams. It is the underground extension of a building's walls or columns. Its function is to bear the loads transferred from the building's superstructure and transfer them along with its own weight to the foundation.

[0003] Due to the shortage of urban land, some buildings need to add floors to the existing building foundation, which makes the bearing capacity of the original building foundation insufficient. Or as the age increases, some old building foundations begin to show the problem of insufficient bearing capacity. Reinforcement is used to solve this problem. Solutions such as [Public (Announcement) No.: CN215759235U, a building foundation reinforcement structure] and [Public (Announcement) No.: CN219411005U, a single pile foundation reinforcement device] are proposed.

[0004] The above-mentioned building foundation reinforcement device proposes to add a supporting structure to the foundation ground surface to increase the supporting force application surface on the ground and provide a reinforcement effect. However, the connection aspects of the added supporting structure are relatively simple and the overall structural strength is low, which has the disadvantage of poor reinforcement effect. Utility Model Content

[0005] The purpose of the present invention is to provide a reinforcement device for improving the bearing capacity of a building foundation in order to solve the above technical problems.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] The utility model proposes a reinforcement device for improving the bearing capacity of a building foundation, comprising a foundation, a top plate attached to the top of the foundation, and piles and columns respectively fixed to the top and bottom ends of the top plate, wherein the piles are fixedly embedded in the foundation;

[0008] The system also includes a plurality of drill cavities embedded in the top of the foundation, expansion platforms fixed to the periphery of the top plate, filling columns arranged in the drill cavities, enclosure platforms fixed to the top plate and the top of the expansion platforms, and frames fixed in the expansion platforms, filling columns and enclosure platforms respectively;

[0009] Some of the multiple drill cavities are connected to the outside of the pile body, the bottom end of the expansion platform is fitted with the top of the foundation, and the expansion platform, filling column and surrounding platform are formed in one piece.

[0010] As a preferred technical solution of the present invention, the outer side of the column is fitted with the surrounding platform.

[0011] As a preferred technical solution of the present invention, the drill cavity portion communicating with the outside of the pile body is embedded in the pile body.

[0012] As a preferred technical solution of the present invention, the expansion platform, the filling column and the frame inside the surrounding platform are connected and fixed in sequence.

[0013] As a preferred technical solution of the present invention, the expansion platform, filling columns and surrounding platform are made of concrete.

[0014] As a preferred technical solution of the present invention, the frame is a steel frame.

[0015] The beneficial effects of the utility model are as follows:

[0016] By setting up multiple groups of drill cavities on the periphery of the top plate, filling columns are simultaneously set up inside the drill cavities when setting up the expansion platform on the periphery of the top plate, so as to increase the supporting surface of the top plate on the foundation to improve the bearing capacity; and a part of the drill cavity is connected to the outside of the pile body and even partially embedded in the pile body. The filling columns formed in this way can be better connected to the pile body, thereby improving the stability of the structure; when setting up the expansion platform on the periphery of the top plate, a platform that contacts the column is simultaneously set at the top of the top plate to improve the integrated strength of the top plate and the expansion platform, thereby further improving the bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Reference numerals: foundation-1, top plate-2, pile body-3, column body-4, drill cavity-5, expansion platform-6, filling column-7, surrounding platform-8, frame-9. DETAILED DESCRIPTION

[0019] like Figure 1 As shown, the utility model proposes: a reinforcement device for improving the bearing capacity of a building foundation, comprising a foundation 1, a top plate 2 affixed to the top of the foundation 1, a pile body 3 and a column body 4 respectively fixed to the top and bottom ends of the top plate 2, the pile body 3 being fixedly embedded in the foundation 1 (as shown in the figure, the pile body 3, the top plate 2 and the column body 4 are arranged in sequence from bottom to top, the pile body 3 is placed in the foundation 1, and the bottom end of the top plate 2 affixes to the bottom end of the foundation 1);

[0020] When setting the pile body 3, a hole is drilled downward from the top of the foundation 1 using a drilling device in advance, and then a steel cage is filled with concrete and solidified to form it. Then, a formwork is made to cast the top plate 2 and the column 4.

[0021] It also includes multiple sets of drill cavities 5 embedded in the top of the foundation 1 (as shown in the figure, multiple sets of drill cavities 5 are set downward from the top of the foundation 1 in the outer direction of the top plate 2);

[0022] Part of the multiple drill cavities 5 are connected to the outside of the pile body 3. A portion of the drill cavities 5 are formed by oblique drilling at the top of the foundation 1 using a drilling device and the like and contact the surface of the pile body 3, while the other portion is directly drilled into the interior of the foundation 1.

[0023] An expansion platform 6 is fixed to the periphery of the top plate 2, and an expansion platform 6 is set to expand the support surface at the periphery of the top plate 2 to increase the pressure surface of the foundation 1 and improve the bearing strength;

[0024] The filling columns 7 are arranged in the drill cavities 5, by respectively arranging the filling columns 7 in the interiors of the multiple groups of drill cavities 5;

[0025] The surrounding platform 8 is fixed on the top of the top plate 2 and the expansion platform 6 to improve the connection strength between the top plate 2 and the expansion platform 6;

[0026] and fixed frames 9 are built into the expansion platform 6, the filling column 7 and the surrounding platform 8 to improve the strength of the structure;

[0027] Among them, the expansion platform 6, the filling column 7 and the surrounding platform 8 are made of concrete or the like, and the frame 9 is a steel frame or the like (when the expansion platform 6, the filling column 7 and the surrounding platform 8 are manufactured, the frame 9 is manufactured in advance. The steel frame can be a steel cage woven to adapt to the shape and size of the expansion platform 6, the filling column 7 and the surrounding platform 8. The frame 9 is placed in the drill cavity 5. A template with a mold cavity is set outside the expansion platform 6 and the surrounding platform 8, and another frame 9 is placed in the mold cavity. Then, concrete is introduced into the mold cavity and flows into the drill cavity 5, and then solidified);

[0028] The bottom end of the expansion platform 6 is fitted with the top end of the foundation 1 , and the expansion platform 6 , the filling column 7 and the surrounding platform 8 are formed as one piece. The expansion platform 6 , the filling column 7 and the surrounding platform 8 are formed by the above-mentioned integral casting, which can improve the overall strength and simplify the construction process.

[0029] The outer side of the column 4 is fitted with the platform 8. When the platform 8 is manufactured, the outer side of the platform 8 contacts the outer periphery of the column 4, thereby improving the overall integrity and strength.

[0030] The drill cavity 5 communicating with the outside of the pile body 3 is partially embedded in the pile body 3. According to the above, when the drill cavity 5 contacting the outside of the pile body 3 is set in the foundation 1 using a drilling device, a lower portion of the interior of the pile body 3 is drilled in advance, so that when the filling column 7 is cast to form, it can be better connected with the pile body 3, thereby improving the stability of the structure and increasing the bearing capacity;

[0031] The expansion platform 6, the filling columns 7 and the frame 9 inside the surrounding platform 8 are connected and fixed in sequence. According to the above, when setting up and making the frame 9, the expansion platform 6, the filling columns 7 and the frame 9 inside the surrounding platform 8 are woven and made connected as one, so as to provide the overall strength of the expansion platform 6, the filling columns 7 and the surrounding platform 8 after they are cast and formed, thereby further improving the bearing capacity.

[0032] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0033] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A reinforcement device for improving the bearing capacity of a building foundation, comprising a foundation (1), a top plate (2) attached to the top of the foundation (1), a pile body (3) and a column body (4) respectively fixed to the top and bottom ends of the top plate (2), wherein the pile body (3) is fixedly embedded in the foundation (1); It is characterized in that It also includes a plurality of drill cavities (5) embedded in the top of the foundation (1), an expansion platform (6) fixed to the periphery of the top plate (2), a filling column (7) arranged in the drill cavity (5), a surrounding platform (8) fixed to the top of the top plate (2) and the expansion platform (6), and a frame (9) respectively built into and fixed to the expansion platform (6), the filling column (7) and the surrounding platform (8); Some of the drill cavities (5) in the plurality of groups are connected to the outside of the pile body (3), the bottom end of the expansion platform (6) is fitted with the top end of the foundation (1), and the expansion platform (6), the filling column (7) and the surrounding platform (8) are integrally formed.

2. A reinforcement device for improving the bearing capacity of a building foundation according to claim 1, characterized in that: The outer side of the column (4) is fitted with the surrounding platform (8).

3. A reinforcement device for improving the bearing capacity of a building foundation according to claim 1, characterized in that: The drill cavity (5) communicating with the outside of the pile body (3) is partially embedded in the pile body (3).

4. A reinforcement device for improving the bearing capacity of a building foundation according to claim 1, characterized in that: The expansion platform (6), the filling column (7) and the frame (9) inside the surrounding platform (8) are connected and fixed in sequence.

5. The reinforcement device for improving the bearing capacity of a building foundation according to claim 1, characterized in that: The expansion platform (6), the filling column (7) and the surrounding platform (8) are made of concrete.

6. A reinforcement device for improving the bearing capacity of a building foundation according to claim 1, characterized in that: The frame (9) is a steel frame.

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