CN211714057U

CN211714057U - Steel-pipe pile foundation reinforced structure

Info

Publication number: CN211714057U
Application number: CN202020179141.5U
Authority: CN
Inventors: 付磊; 李文彬; 曹怀予
Original assignee: Individual
Current assignee: Wuhan Survey And Design Co ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-10-20
Anticipated expiration: 2030-02-18

Abstract

The utility model discloses a steel-pipe pile foundation reinforced structure belongs to building foundation technical field. The utility model provides a steel-pipe pile foundation reinforced structure, includes the foundation base, is symmetrical structure on the foundation base and runs through and be equipped with two stake pipes, and stake pipe upper portion inner wall is seted up there is the internal thread, and the helicla flute has been seted up to stake pipe lower part inner wall, is equipped with the anchor strut in the helicla flute, and anchor strut lower part outer wall is equipped with the spiral, and the anchor strut upper end is passed the inside extension of stake pipe and is reached upper portion and the welding has the hand wheel, and the extension subassembly has been cup jointed to. The utility model discloses an inside anchor strut rather than threaded connection that is equipped with of stake pipe is equipped with the spiral at the anchor strut lower extreme, is equipped with the extension subassembly at the anchor strut middle part, utilizes the auger to bore into the ground end and injects outside soil through the extension subassembly in to improve the stability of foundation base. The utility model discloses structural design is simple reasonable, and powerful is favorable to strengthening the stability of steel-pipe pile foundation.

Description

Steel-pipe pile foundation reinforced structure

Technical Field

The utility model relates to a building foundation technical field, more specifically say, relate to a steel-pipe pile foundation reinforced structure.

Background

The common reinforcement methods of foundation foundations can be classified into grouting reinforcement, foundation reinforcement grouting reinforcement, anchor static pressure pile method, pit static pressure pile method, foundation base area increasing method, foundation deepening method, tree root pile method, lime pile method and the like. The method is mostly based on reinforcement research of foundation foundations developed due to uneven settlement of foundation foundations or unreasonable foundation structures and the like, and an effective solution is not available for the project problem that the existing building foundation needs reinforcement caused by new construction. The patent document with publication number CN201820433966.8 in the prior art provides a steel pipe pile foundation reinforcing structure, which comprises a foundation, a foundation beam, a frame column, a steel pipe pile, an i-steel, a steel bar, a nut, a base plate and a concrete protective layer; the foundation is a reinforced concrete foundation of an existing building, a foundation beam is built on the foundation, and a frame column is built on the foundation beam; the steel pipe piles are reinforcing structures arranged at four corners of the top surface of the foundation; the I-shaped steel is a steel structure tightly pressed on the top surface of the steel pipe pile, and small holes are formed in the four corners of the I-shaped steel; the embedded steel bars penetrate through the small holes of the I-shaped steel and are embedded into the foundation, one end of each embedded steel bar is fastened on the top surface of the I-shaped steel through a nut, and the other end of each embedded steel bar is anchored in the foundation; a base plate is arranged between the nut and the I-shaped steel; the concrete protective layer is built on the foundation, and the concrete protective layer is wrapped outside the I-shaped steel, the nut, the base plate and part of the steel pipe pile. Although the device has more beneficial effects, the following problems still exist: in the device, the steel pipe pile is simple in structure, the ground grabbing force is not strong, the contact area between the foundation and the ground is excessively depended on, and therefore stability is improved.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide a steel-pipe pile foundation reinforced structure to solve the problem that proposes in the above-mentioned background art.

2. Technical scheme

The utility model provides a steel-pipe pile foundation reinforced structure, includes the foundation base, it runs through and is equipped with two stake pipes to be the symmetrical structure on the foundation base, the internal thread has been seted up to stake pipe upper portion inner wall, the helicla flute has been seted up to stake pipe lower part inner wall, be equipped with the anchor strut in the helicla flute, anchor strut lower part outer wall is equipped with the spiral, the anchor strut upper end is passed the inside extension of stake pipe and is reached upper portion and the welding has the hand wheel, the extension subassembly has been cup jointed to the position of the relative helicla flute upper end.

Preferably, the outer wall of the upper part of the reinforcing rod is provided with an external thread, and the external thread is in threaded fit with the internal thread.

Preferably, the size of the spiral is adapted to the size of the spiral groove.

Preferably, the fixing base at anchor strut middle part is located including the cover to the extension subassembly, the fixing base is the cuboid structure, just the fixing base outer wall all is equipped with the push rod all around, push rod one end is articulated with the fixing base, the push rod other end articulates there is the inserted block.

Preferably, the outer end of the insertion block penetrates through the inner wall of the spiral groove to extend to the outside, and two wedge surfaces are arranged at the outer end of the insertion block in an up-down symmetrical structure.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

the utility model discloses an inside anchor strut rather than threaded connection that is equipped with of stake pipe is equipped with the spiral at the anchor strut lower extreme, is equipped with the extension subassembly at the anchor strut middle part, utilizes the auger to bore into the ground end and injects outside soil through the extension subassembly in to improve the stability of foundation base. The utility model discloses structural design is simple reasonable, and powerful is favorable to strengthening the stability of steel-pipe pile foundation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional structure view of the middle pile tube of the present invention;

fig. 3 is a schematic view of the split cross-sectional structure of the middle pile tube of the present invention;

FIG. 4 is a schematic structural view of a middle extension assembly according to the present invention;

the reference numbers in the figures illustrate: 1. a base seat; 2. pile pipes; 201. an internal thread; 202. a helical groove; 3. a reinforcing rod; 301. spiraling; 302. a hand wheel; 303. an external thread; 4. an extension assembly; 401. a fixed seat; 402. a push rod; 403. inserting a block; 404. a wedge surface.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a steel-pipe pile foundation reinforced structure, includes foundation base 1, is symmetrical structure on the foundation base 1 and runs through and be equipped with two stake pipes 2, and internal thread 201 has been seted up to 2 upper portion inner walls of stake pipe, and helicla flute 202 has been seted up to 2 lower part inner walls of stake pipe, is equipped with anchor strut 3 in the

helicla flute

202, and 3 lower part outer walls of anchor strut are equipped with spiral 301, and 3 upper ends of anchor strut pass 2 inside extension upper portions of stake pipe and the welding has hand wheel 302, and extension subassembly 4 has been cup jointed to the position of 3 middle part relative helicla flute 202 upper.

Specifically, the outer wall of the upper part of the reinforcing rod 3 is provided with an external thread 303, and the external thread 303 is in threaded fit with the internal thread 201. The external thread 303 is engaged with the internal thread 201, so that the reinforcing rod 3 can be stably moved up and down.

Further, the size of the spiral 301 is adapted to the size of the spiral groove 202. The spiral groove 202 is formed at the lower part of the pile pipe 2, so that the spiral 301 at the lower part of the reinforcing rod 3 is convenient to store.

It is worth explaining, extension subassembly 4 locates the fixing base 401 at 3 middle parts of anchor strut including the cover, the utility model discloses seted up the spacing groove at 3 middle parts of anchor strut, fixing base 401 is spacing in the spacing inslot to rotate with anchor strut 3 and be connected, fixing base 401 is the cuboid structure, and fixing base 401 outer wall all is equipped with push rod 402 all around, and push rod 402 one end is articulated with fixing base 401, and the push rod 402 other end articulates there is inserted block 403. The fixing base 401 is driven by the reinforcing rod 3, so that the push rod 402 pushes the insert 403 out of the inner side of the pile tube 2 and inserts into the ground.

It should be noted that the outer end of the insertion block 403 passes through the inner wall of the spiral groove 202 and extends to the outside, and two wedge surfaces 404 are disposed at the outer end of the insertion block 403 in a vertically symmetrical structure. The outer end of the insert 403 is provided with a wedge surface 404, so that the friction force with the soil is reduced.

The working principle is as follows: when installing on the ground the utility model discloses the time, with stake pipe 2 pre-buried in ground, rotate hand wheel 302 again, hand wheel 302 drives anchor strut 3 at stake intraductal 2 internal rotations, this moment, anchor strut 3 is along internal thread 201 downstream, spiral 301 of 3 lower extremes of anchor strut stretches into at the bottom of the ground when following 3 pivoted anchor strut, the helicoid that utilizes spiral 301 improves the area of contact with soil, meanwhile, anchor strut 3 downstream is followed to the fixing base 401 at 3 middle parts of anchor strut, fixing base 401 promotes the push rod 402 on its outer wall, push rod 402 promotes inserted block 403 and outwards extends, thereby make the scarf 404 of inserted block 403 outer end stretch into in the outside soil, further improve the area of contact with soil.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a steel-pipe pile foundation reinforced structure, includes foundation base (1), its characterized in that: it runs through and is equipped with two stake pipes (2) to be symmetrical structure on foundation base (1), stake pipe (2) upper portion inner wall is seted up internal thread (201), helicla flute (202) have been seted up to stake pipe (2) lower part inner wall, be equipped with anchor strut (3) in helicla flute (202), anchor strut (3) lower part outer wall is equipped with spiral (301), anchor strut (3) upper end is passed stake pipe (2) inboard and is extended upper portion and welding have hand wheel (302), the position of the relative helicla flute in anchor strut (3) middle part (202) upper end has cup jointed extension subassembly (4).

2. The steel pipe pile foundation reinforcing structure of claim 1, wherein: the outer wall of the upper portion of the reinforcing rod (3) is provided with an external thread (303), and the external thread (303) is in threaded fit with the internal thread (201).

3. The steel pipe pile foundation reinforcing structure of claim 1, wherein: the size of the spiral (301) is matched with that of the spiral groove (202).

4. The steel pipe pile foundation reinforcing structure of claim 1, wherein: extend subassembly (4) including cover fixing base (401) of locating anchor strut (3) middle part, fixing base (401) are the cuboid structure, just fixing base (401) outer wall all around all is equipped with push rod (402), push rod (402) one end is articulated with fixing base (401), push rod (402) other end articulates there is inserted block (403).

5. The steel pipe pile foundation reinforcing structure of claim 4, wherein: the outer end of the inserting block (403) penetrates through the inner wall of the spiral groove (202) and extends to the outside, and two wedge surfaces (404) are arranged at the outer end of the inserting block (403) in an up-down symmetrical structure.