Cement-soil composite pipe pile

Abstract

The utility model provides a cement-soil composite pipe pile which comprises a cement-soil pile and a core pile, the core pile is installed in the middle of the cement-soil pile, a lower connecting piece is installed at the bottom end of the core pile, a pair of arc-shaped sliding grooves are symmetrically formed in the two sides of the bottom end of the lower connecting piece, arc-shaped sliding blocks are installed in the arc-shaped sliding grooves in a sliding mode, and an upper connecting piece is installed at the top end of the core pile. A pair of arc-shaped clamping grooves are formed in the two sides of the top end of the upper connecting piece, and a supporting assembly is installed at the position, under the upper connecting piece, of the peripheral side of the top end of the core pile. The cement-soil composite pipe pile is simple and reasonable in structure, novel in design, easy to operate, high in practicability and convenient to widely popularize and use.

Description

Technical Field

[0001] The utility model relates to the technical field of composite pipe piles, in particular to a cement-soil composite pipe pile. Background Art

[0002] Cement-soil composite pipe piles are a new type of composite pile type that has obtained a national patent and is formed by combining cement-soil piles formed by high-pressure jetting mixing method with concentrically implanted prestressed pipe piles. Cement-soil composite pipe piles not only have high pile body material strength, but also have the advantage of large lateral resistance. They can be used as foundation piles and can also be used in composite foundations.

[0003] Since different areas require different depths of piling, when a single core pile cannot reach the length specified in the design, multiple core piles need to be spliced ​​together to meet the demand. However, core piles are usually heavy, and workers need to constantly adjust the positions of the two core piles to align the two pipe piles for welding, which reduces work efficiency. In addition, cement-soil composite pipe piles need to be driven in before the cement soil solidifies. Since cement soil has a certain fluidity, the core piles may easily be offset by workers touching or colliding with external objects when connecting the piles, affecting the subsequent piling effect.

[0004] Therefore, we made improvements on this and proposed a cement-soil composite pipe pile. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a cement-soil composite pipe pile, comprising a cement-soil pile and a core pile, wherein the core pile is installed at the middle position of the cement-soil pile, a lower connecting piece is installed at the bottom end of the core pile, a pair of arc-shaped slide grooves are symmetrically arranged on both sides of the bottom end of the lower connecting piece, an arc-shaped sliding block is slidably installed in the arc-shaped slide groove, an upper connecting piece is installed at the top end of the core pile, a pair of arc-shaped clamping grooves are arranged on both sides of the top end of the upper connecting piece, and a supporting assembly is installed on the peripheral side of the top end of the core pile at a position directly below the upper connecting piece.

[0007] As a preferred technical solution of the utility model, a plurality of first compression springs are installed at the top end of the arc-shaped slide groove, and the other end of the first compression spring is connected to the top end of the arc-shaped slide block.

[0008] As a preferred technical solution of the present invention, the size of the arc-shaped sliding block matches that of the arc-shaped slot.

[0009] As a preferred technical solution of the utility model, the support assembly includes a front support member and a rear support member, and the front support member and the rear support member are symmetrically installed on both sides of the core pile at a position directly below the upper connecting member, and a pair of arc-shaped support blocks are symmetrically installed on the inner sides of the front support member and the rear support member, and the front support member is symmetrically provided with a pair of second clamping grooves at the bottom end close to the rear support member, a sliding plate is slidably installed on one side of the second clamping groove, and the top end of the sliding plate passes through the front support member and is slidably connected to the front support member, a limiting block is installed on one side of the bottom end of the sliding plate, and the rear support member is symmetrically provided with a pair of second clamping blocks at the bottom end close to the front support member, and the bottom end of the second clamping block is provided with a limiting groove.

[0010] As a preferred technical solution of the present invention, the top end of the arc-shaped support block is tightly fitted with the top end of the upper connecting piece.

[0011] As a preferred technical solution of the utility model, a second compression spring is installed at the bottom end of the second clamping slot, and the top end of the second compression spring is connected to the bottom end of the sliding plate.

[0012] As a preferred technical solution of the present invention, the second card block is engaged and connected with the second card slot.

[0013] As a preferred technical solution of the present utility model, the limit block is engaged and connected with the limit groove.

[0014] The beneficial effects of the utility model are:

[0015] 1. By using the upper connecting piece, the lower connecting piece, the arc-shaped slide groove, the arc-shaped sliding block, the arc-shaped clamping groove and the first compression spring in coordination, it is convenient to quickly align two pipe piles when connecting piles, thereby improving the working efficiency when connecting piles.

[0016] 2. Through the coordinated use of the front support, the rear support, the arc-shaped support block, the upper connecting member, the second slot, the sliding plate, the limit block, the second block, the limit slot and the second compression spring, it is convenient to fix the pipe pile at the lower end when connecting the piles, so as to avoid the core pile sinking or shifting during the pile connection process due to the touch of the staff or the external collision, thereby improving the efficiency and effect of pile connection, avoiding the breakage of the core pile during the later piling due to the shift, and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components in the exemplary embodiments of the present disclosure.

[0018] Figure 1 It is a three-dimensional schematic diagram of the cement-soil composite pipe pile of the utility model;

[0019] Figure 2 It is a side cross-sectional schematic diagram of a partial structure of the cement-soil composite pipe pile of the utility model;

[0020] Figure 3 It is a front view cross-sectional schematic diagram of a part of the structure of the cement-soil composite pipe pile of the utility model;

[0021] Figure 4 The utility model is a cement-soil composite pipe pile Figure 2 A magnified schematic diagram of part A;

[0022] Figure 5 The utility model is a cement-soil composite pipe pile Figure 3 Schematic diagram of the enlarged portion B.

[0023] In the figure: 1. cement soil pile; 2. core pile; 3. lower connecting member; 4. arc-shaped slide groove; 5. arc-shaped slider; 6. upper connecting member; 7. arc-shaped slot; 8. first compression spring; 9. front support member; 10. rear support member; 11. arc-shaped support block; 12. second slot; 13. sliding plate; 14. limit block; 15. second block; 16. limit slot; 17. second compression spring. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0025] Example: Figure 1-5 As shown, the cement-soil composite pipe pile of the utility model comprises a cement-soil pile 1 and a core pile 2. The core pile 2 is installed in the middle position of the cement-soil pile 1. A lower connecting member 3 is installed at the bottom end of the core pile 2. A pair of arc-shaped slide grooves 4 are symmetrically provided on both sides of the bottom end of the lower connecting member 3. An arc-shaped sliding block 5 is slidably installed in the arc-shaped slide groove 4. An upper connecting member 6 is installed at the top end of the core pile 2. A pair of arc-shaped grooves 7 are provided on both sides of the top end of the upper connecting member 6. A supporting assembly is installed on the peripheral side of the top end of the core pile 2 at a position directly below the upper connecting member 6.

[0026] Among them, a plurality of first compression springs 8 are installed at the top of the arc-shaped slide groove 4, and the other end of the first compression spring 8 is connected to the top of the arc-shaped slider 5. When connecting the piles, the two core piles 2 are aligned first, and the core pile 2 at the upper end is placed on the core pile 2 at the lower end, so that the lower connecting member 3 and the upper connecting member 6 fit together. At this time, the first compression spring 8 is squeezed, driving the arc-shaped slider 5 to enter the arc-shaped slide groove 4, and rotating the core pile 2 at the upper end. When the arc-shaped slide groove 4 is aligned with the arc-shaped slot 7, the first compression spring 8 is no longer squeezed, driving the arc-shaped slider 5 to enter the arc-shaped slot 7, thereby realizing the alignment of the two core piles 2.

[0027] The sizes of the arc-shaped sliding block 5 and the arc-shaped clamping groove 7 match each other, so that the arc-shaped sliding block 5 can enter into the arc-shaped clamping groove 7 and be clamped with the arc-shaped clamping groove 7 .

[0028] Among them, the support assembly includes a front support member 9 and a rear support member 10, which are symmetrically installed on both sides of the core pile 2 at a position directly below the upper connecting member 6. A pair of arc-shaped support blocks 11 are symmetrically installed on the inner sides of the front support member 9 and the rear support member 10. The front support member 9 is symmetrically provided with a pair of second card grooves 12 at the bottom end near the rear support member 10. A sliding plate 13 is slidably installed on one side of the second card groove 12, and the top end of the sliding plate 13 passes through the front support member 9 and is slidably connected to the front support member 9. A limiting block 14 is installed on one side of the bottom end of the sliding plate 13. The rear support member 10 is symmetrically installed with a pair of second card grooves at the bottom end near the front support member 9. Block 15, a limiting groove 16 is provided at the bottom end of the second clamping block 15. During the pile connection process, the second clamping block 15 is located in the second clamping groove 12, and the limiting block 14 is located in the limiting groove 16, so that the front support member 9 and the rear support member 10 can fit closely. At this time, the arc-shaped support block 11 supports and limits the core pile 2 at the lower end, thereby preventing the core pile 2 from sinking or shifting during the pile connection process. After the pile connection is completed, the sliding plate 13 is pressed downward to drive the limiting block 14 to disengage from the limiting groove 16. At this time, the second clamping block 15 is no longer affected by the limiting effect in the second clamping groove 12, and the front support member 9 and the rear support member 10 can be removed by pulling the front support member 9 and the rear support member 10 in opposite directions.

[0029] The top end of the arc-shaped support block 11 is tightly fitted with the top end of the upper connecting member 6 , so that the arc-shaped support block 11 can support and limit the upper supporting member.

[0030] Among them, a second compression spring 17 is installed at the bottom end of the second slot 12, and the top end of the second compression spring 17 is connected to the bottom end of the sliding plate 13. When it is necessary to support the core pile 2 located at the lower end, the front support member 9 and the rear support member 10 are pushed in opposite directions, the sliding plate 13 is pressed, and the second block 15 is inserted into the second slot 12, and then the sliding plate 13 is released. Under the action of the second compression spring 17 resetting, the sliding plate 13 drives the limit block 14 to be inserted into the limit groove 16, thereby fixing the front support member 9 and the rear support member 10 together.

[0031] The second card block 15 is engaged and connected with the second card slot 12 , so that the second card block 15 can enter into the second card slot 12 .

[0032] The limiting block 14 is engaged with the limiting groove 16 , and the front support member 9 and the rear support member 10 are fixed together by the engagement of the limiting block 14 and the limiting groove 16 .

[0033] Working principle: When using this type of cement-soil composite pipe pile, the staff first injects the cement-soil pile 1 into the preset position, and then inserts the core pile 2 into the center position of the cement-soil pile 1. When the piles need to be connected, the staff pushes the front support member 9 and the rear support member 10 in opposite directions, presses the sliding plate 13, and makes the second clamping block 15 snap into the second clamping groove 12, and then releases the sliding plate 13. Under the action of the second compression spring 17 resetting, the sliding plate 13 drives the limit block 14 to snap into the limit groove 16, thereby fixing the front support member 9 and the rear support member 10 together. After the fixing is completed, first align the two core piles 2, and place the core pile 2 at the upper end on the core pile 2 at the lower end, so that the lower connection The connecting piece 3 and the upper connecting piece 6 are fitted together. At this time, the first compression spring 8 is squeezed, driving the arc slide block 5 to enter the arc slide groove 4, and rotating the core pile 2 at the upper end. When the arc slide groove 4 is aligned with the arc clamping groove 7, the first compression spring 8 is no longer squeezed, driving the arc slide block 5 to enter the arc clamping groove 7, thereby realizing the alignment and fixation of the two core piles 2, which is convenient for subsequent welding. After the pile connection is completed, press the sliding plate 13 downward to drive the limit block 14 to disengage from the limit groove 16. At this time, the second clamping block 15 is no longer limited in the second clamping groove 12, and the front support member 9 and the rear support member 10 can be removed by pulling the front support member 9 and the rear support member 10 in opposite directions.

[0034] To facilitate understanding of the scheme and effects of the embodiment of the utility model, a specific application example is given below. Those skilled in the art should understand that this example is only for facilitating understanding of the utility model, and any specific details thereof are not intended to limit the utility model in any way.

[0035] Those skilled in the art should understand that the purpose of the above description of the embodiments of the present invention is only to exemplarily illustrate the beneficial effects of the embodiments of the present invention, and is not intended to limit the embodiments of the present invention to any given examples.

[0036] The above description of various embodiments of the utility model is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A cement-soil composite pipe pile, comprising a cement-soil pile (1) and a core pile (2), characterized in that: The core pile (2) is installed at the middle position of the cement soil pile (1); a lower connecting member (3) is installed at the bottom end of the core pile (2); a pair of arc-shaped sliding grooves (4) are symmetrically arranged on both sides of the bottom end of the lower connecting member (3); an arc-shaped sliding block (5) is slidably installed in the arc-shaped sliding groove (4); an upper connecting member (6) is installed at the top end of the core pile (2); a pair of arc-shaped clamping grooves (7) are arranged on both sides of the top end of the upper connecting member (6); and a supporting assembly is installed on the peripheral side of the top end of the core pile (2) at a position directly below the upper connecting member (6).

2. The cement-soil composite pipe pile according to claim 1, characterized in that: A plurality of first compression springs (8) are installed at the top end of the arc-shaped slide groove (4), and the other end of the first compression spring (8) is connected to the top end of the arc-shaped slide block (5).

3. The cement-soil composite pipe pile according to claim 1, characterized in that: The sizes of the arc-shaped sliding block (5) and the arc-shaped clamping groove (7) match each other.

4. The cement-soil composite pipe pile according to claim 1, characterized in that: The support assembly comprises a front support member (9) and a rear support member (10), wherein the front support member (9) and the rear support member (10) are symmetrically mounted on both sides of the core pile (2) at positions directly below the upper connecting member (6), and a pair of arc-shaped support blocks (11) are symmetrically mounted on the inner sides of the front support member (9) and the rear support member (10), and the front support member (9) is symmetrically provided with a pair of second clamping grooves (12) at the bottom end close to the rear support member (10), and a sliding plate (13) is slidably mounted on one side of the second clamping groove (12), and the top end of the sliding plate (13) passes through the front support member (9) and is slidably connected to the front support member (9), and a limiting block (14) is mounted on one side of the bottom end of the sliding plate (13), and the rear support member (10) is symmetrically provided with a pair of second clamping blocks (15) at the bottom end close to the front support member (9), and a limiting groove (16) is arranged at the bottom end of the second clamping block (15).

5. The cement-soil composite pipe pile according to claim 4, characterized in that: The top end of the arc-shaped support block (11) is tightly fitted with the top end of the upper connecting piece (6).

6. The cement-soil composite pipe pile according to claim 4, characterized in that: A second compression spring (17) is installed at the bottom end of the second clamping slot (12), and the top end of the second compression spring (17) is connected to the bottom end of the sliding plate (13).

7. The cement-soil composite pipe pile according to claim 4, characterized in that: The second card block (15) is engaged and connected with the second card slot (12).

8. The cement-soil composite pipe pile according to claim 4, characterized in that: The limiting block (14) is snap-fitted and connected to the limiting groove (16).

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