Reinforced friction type prestressed concrete special-shaped pipe pile

Abstract

The utility model discloses a reinforced friction type prestressed concrete special-shaped tubular pile in the technical field of tubular piles, which comprises a thin pile section and a thick pile section, the thin pile section and the thick pile section are arranged into an integrally formed structure, the thin pile section is positioned at the top of the thick pile section, a threaded column is arranged at the bottom of the thick pile section, and a clamping column is arranged at the bottom of the threaded column. A clamping column is arranged in the thick pile section, a limiting disc is arranged at the bottom of the clamping column, a cavity groove is formed in the thin pile section, a threaded groove communicated with the cavity groove is formed in the top of the thin pile section, a clamping assembly matched with the clamping column is arranged in the cavity groove, and a slurry guide groove is formed in the surface of the thick pile section. According to the special-shaped tubular pile, two special-shaped tubular piles can be connected and fixed, clamping columns can be limited and clamped through cooperative use of arc-shaped clamping plates, threaded rods, limiting rods and limiting discs, the two combined special-shaped tubular piles are not prone to disengagement, operation is easy, pile bodies are connected firmly, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe piles, in particular to a friction-enhanced prestressed concrete special-shaped pipe pile. Background Art

[0002] Prestressed concrete pipe piles are referred to as prestressed pipe piles. They are piles made of prestressed concrete. They are a kind of engineering construction material. They have the advantages of saving wood and steel, being durable and inexpensive. They are mainly used in the foundation engineering of buildings. After searching, in the patent document with the publication number CN205314096U, a friction-enhanced prestressed concrete special-shaped pipe pile is disclosed. The utility model sets a slurry guide groove on the surface of the pile body with convex ridges or grooves, so that the pipe pile can rely on the groove on the surface to guide the soil, mud and cementing slurry in the lead hole during the process of entering the soil, so that it can be fully filled in the position with a smaller diameter on the pile surface, ensuring and greatly enhancing the friction force of the pile surface in the foundation soil, and giving full play to the theoretical friction bearing effect of the special-shaped pipe pile. However, in the process of using the above utility model, when multiple special-shaped pipe piles need to be combined and used by using external connectors, not only the operation is more complicated, but also it is easy to cause the connection between the pile bodies to be loose, thereby affecting the use. For this reason, it is necessary to propose a friction-enhanced prestressed concrete special-shaped pipe pile. Summary of the invention

[0003] The utility model aims to provide a friction-enhanced prestressed concrete special-shaped pipe pile to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an enhanced friction type prestressed concrete special-shaped pipe pile, comprising a thin pile segment and a thick pile segment, the thin pile segment and the thick pile segment are arranged as an integrally formed structure, the thin pile segment is located at the top of the thick pile segment, a threaded column is arranged at the bottom of the thick pile segment, a clamping column is arranged at the bottom of the threaded column, a limiting disk is arranged at the bottom of the clamping column, a cavity is arranged inside the thin pile segment, a threaded groove connected to the cavity is arranged at the top of the thin pile segment, a clamping assembly matching the clamping column is arranged in the groove of the cavity, and a slurry guide groove is arranged on the surface of the thick pile segment.

[0005] Preferably, the clamping assembly includes two arc-shaped clamping plates, which are symmetrically arranged in the groove of the cavity, and are adapted to the clamping column. The two arc-shaped clamping plates are rotatably connected to a threaded rod on one side away from each other, and the other end of the threaded rod passes through the thin pile segment and is threadedly connected to the thin pile segment.

[0006] Preferably, limit rods are provided on both sides of the threaded rod, one end of the limit rod is connected to the arc-shaped clamping plate, and the other end of the limit rod passes through the thin pile section.

[0007] Preferably, the outer diameter of the threaded column is larger than the outer diameter of the clamping column, the outer diameter of the clamping column is smaller than the outer diameter of the limiting disk, and the threaded column is matched with the thread groove.

[0008] Preferably, there are a plurality of slurry guide grooves distributed in a ring array on the surface of the thick pile section.

[0009] Preferably, a shoulder surface is provided between the thin pile section and the thick pile section.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model is provided with a clamping assembly, which can realize the connection and fixation of two special-shaped pipe piles through the coordinated use of a threaded column and a threaded groove, so that the clamping column and the limit plate on the thick pile section of one of the special-shaped pipe piles are inserted into the cavity groove on the thin pile section of the other special-shaped pipe pile. The clamping column can be limited and clamped through the coordinated use of an arc-shaped clamping plate, a threaded rod, a limit rod and a limit plate, so that the two combined special-shaped pipe piles are not easy to be separated. Not only is the operation relatively simple, but the connection between the pile bodies is also firm and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the thin pile section of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the clamping assembly of the utility model.

[0015] In the figure: 1, thin pile section; 2, thick pile section; 3, threaded column; 4, clamping column; 5, limit plate; 6, cavity groove; 7, threaded groove; 8, clamping assembly; 81, arc clamping plate; 82, threaded rod; 83, limit rod; 9, slurry guide groove; 10, shaft shoulder surface. Implementation

[0016] 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. Example

[0017] See also Figure 1Prestressed concrete pipe piles, referred to as prestressed pipe piles, are piles made of prestressed concrete. They are a kind of engineering construction material. They have the advantages of saving wood and steel, being durable and inexpensive. They are mainly used in the foundation engineering of buildings. The utility model provides a technical solution: an enhanced friction type prestressed concrete special-shaped pipe pile, comprising a thin pile segment 1 and a thick pile segment 2. The thin pile segment 1 and the thick pile segment 2 are arranged as an integrally formed structure, and the thin pile segment 1 is located at the top of the thick pile segment 2.

[0018] In this embodiment, please refer to Figure 1 and Figure 2 A threaded column 3 is provided at the bottom of the thick pile section 2, a clamping column 4 is provided at the bottom of the threaded column 3, a limiting disk 5 is provided at the bottom of the clamping column 4, the outer diameter of the threaded column 3 is larger than the outer diameter of the clamping column 4, and the outer diameter of the clamping column 4 is smaller than the outer diameter of the limiting disk 5. A cavity 6 is provided inside the thin pile section 1, and a threaded groove 7 connected to the cavity 6 is provided at the top of the thin pile section 1. The threaded column 3 is adapted to the threaded groove 7. Through the coordinated use of the threaded column 3 and the threaded groove 7, the connection and fixation of two special-shaped pipe piles can be realized, so that the clamping column 4 and the limiting disk 5 on the thick pile section 2 of one special-shaped pipe pile are inserted into the cavity 6 on the thin pile section 1 of the other special-shaped pipe pile.

[0019] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 The two arc clamping plates 81 are symmetrically arranged in the groove of the cavity 6, and the arc clamping plates 81 are adapted to the clamping column 4. The two arc clamping plates 81 are rotatably connected to the sides away from each other with threaded rods 82. The other ends of the threaded rods 82 penetrate the thin pile section 1 and are threadedly connected to the thin pile section 1. Limit rods 83 are provided on both sides of the threaded rods 82. One end of the limit rod 83 is connected to the arc clamping plate 81, and the other end of the limit rod 83 penetrates the thin pile section 1. By simultaneously twisting the threaded rods 82 on both sides, under the limiting action of the limit rod 83, the two arc clamping plates 81 are close to each other and clamp the clamping column 4. Under the cooperation of the limit plate 5, the two special-shaped pipe piles after the combination are not easy to be separated. Not only is the operation simple, but also the connection between the pile bodies is firm and the use effect is good.

[0020] In this embodiment, please refer to Figure 1 A slurry guiding groove 9 is provided on the surface of the thick pile section 2. There are multiple slurry guiding grooves 9 and they are distributed in a circular array on the surface of the thick pile section 2. The multiple slurry guiding grooves 9 are provided so that the special-shaped pipe pile has a larger specific surface area, and thus the friction between the pile body and the foundation soil can be effectively enhanced after the special-shaped pipe pile is buried. Example

[0021] See also Figure 1 This embodiment is different from the first embodiment in that a shoulder surface 10 is provided between the thin pile section 1 and the thick pile section 2, and the strength of the entire special-shaped pipe pile body can be enhanced by the provided shoulder surface 10.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An enhanced friction prestressed concrete special-shaped pipe pile, comprising a thin pile section (1) and a thick pile section (2), characterized in that: The thin pile segment (1) and the thick pile segment (2) are arranged as an integrally formed structure, the thin pile segment (1) is located at the top of the thick pile segment (2), a threaded column (3) is arranged at the bottom of the thick pile segment (2), a clamping column (4) is arranged at the bottom of the threaded column (3), a limit plate (5) is arranged at the bottom of the clamping column (4), a cavity (6) is arranged inside the thin pile segment (1), a threaded groove (7) connected to the cavity (6) is arranged at the top of the thin pile segment (1), a clamping assembly (8) matched with the clamping column (4) is arranged in the groove of the cavity (6), and a slurry guide groove (9) is arranged on the surface of the thick pile segment (2).

2. The friction-enhanced prestressed concrete special-shaped pipe pile according to claim 1, characterized in that: The clamping assembly (8) comprises two arc-shaped clamping plates (81), the two arc-shaped clamping plates (81) are symmetrically arranged in the groove of the cavity groove (6), the arc-shaped clamping plates (81) are adapted to the clamping column (4), and the two arc-shaped clamping plates (81) are rotatably connected to the sides away from each other with threaded rods (82), and the other ends of the threaded rods (82) penetrate the thin pile segment (1) and are threadedly connected to the thin pile segment (1).

3. The friction-enhanced prestressed concrete special-shaped pipe pile according to claim 2, characterized in that: Limiting rods (83) are provided on both sides of the threaded rod (82), one end of the limiting rod (83) is connected to the arc-shaped clamping plate (81), and the other end of the limiting rod (83) passes through the thin pile section (1).

4. The friction-enhanced prestressed concrete special-shaped pipe pile according to claim 1, characterized in that: The outer diameter of the threaded column (3) is greater than the outer diameter of the clamping column (4), the outer diameter of the clamping column (4) is smaller than the outer diameter of the limiting plate (5), and the threaded column (3) is compatible with the threaded groove (7).

5. The friction-enhanced prestressed concrete special-shaped pipe pile according to claim 1, characterized in that: The slurry guide grooves (9) are provided in a plurality and are distributed in a ring array on the surface of the thick pile section (2).

6. The friction-enhanced prestressed concrete special-shaped pipe pile according to claim 1, characterized in that: A shaft shoulder surface (10) is provided between the thin pile section (1) and the thick pile section (2).

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