Auxiliary pile socket joint structure

CN224633920UActive Publication Date: 2026-08-14CCCC THIRD HARBOR ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-04
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0002]在建筑工程、港口码头、桥梁等基础施工中,经常需要设置辅助桩来稳定主要的工程桩,采用辅助桩对工程桩进行定位、支撑或连接的施工中,确保两者精准对接且中心轴线重合至关重要,轴线偏差会导致产生附加弯矩,显著降低桩基的设计承载能力和稳定性,导致连接构件受力不均,加速其疲劳损坏

Benefits of technology

[0016]该辅助桩承插式接头结构,通过内衬筒预先安装于辅助桩内部的高强度、高刚度的圆筒形导向基准,内衬筒中心轴线在安装时即被校准至与辅助桩设计轴线重合,在进行对接时,工程桩只需以该内衬筒为导向进行插接,即可自然实现其与辅助桩的精准对中,从根本上保证了二者最终的中心轴线重合度,消除了传统人工调整的误差,且对接后辅助桩和工程桩之间不会错位,方便操作。

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Abstract

This utility model relates to the field of auxiliary pile installation technology and discloses an auxiliary pile socket joint structure, including: an inner liner cylinder disposed on the auxiliary pile, one end of the inner liner cylinder being connected to the inner wall of the auxiliary pile, and the other end of the inner liner cylinder extending to the outside of the auxiliary pile. At least one plug weld is provided on the cylinder wall of the inner liner cylinder, which is used to connect the inner liner cylinder to the inner wall of the auxiliary pile by plug welding. This auxiliary pile socket joint structure utilizes a high-strength, high-rigidity cylindrical guide reference pre-installed inside the auxiliary pile. During installation, the central axis of the inner liner cylinder is calibrated to coincide with the design axis of the auxiliary pile. During docking, the engineering pile only needs to be inserted with the inner liner cylinder as a guide to naturally achieve precise alignment with the auxiliary pile, fundamentally ensuring the final coincidence of their central axes, eliminating errors from traditional manual adjustments, and preventing misalignment between the auxiliary pile and the engineering pile after docking, thus facilitating operation.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary pile installation technology, specifically to an auxiliary pile socket joint structure. Background Technology

[0002] In the foundation construction of building projects, ports, docks, bridges, etc., it is often necessary to set up auxiliary piles to stabilize the main engineering piles. When using auxiliary piles to position, support or connect engineering piles, it is crucial to ensure that the two are accurately aligned and that their central axes coincide. Axial deviation will cause additional bending moments, significantly reduce the design bearing capacity and stability of the pile foundation, and lead to uneven stress on the connecting components, accelerating their fatigue damage.

[0003] Currently, aligning two piles mainly relies on on-site measurement and manual adjustment by construction personnel. This usually requires multiple measurements and positioning before the piles are roughly aligned by manual guidance and prying of the heavy piles during hoisting. Furthermore, the relative positions of the auxiliary pile and the engineering pile still need to be kept fixed during the fixing operation of the auxiliary pile to the engineering pile after docking, making the operation process cumbersome. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an auxiliary pile socket joint structure, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: an auxiliary pile socket joint structure, comprising: an inner liner provided on the auxiliary pile, one end of the inner liner being connected to the inner wall of the auxiliary pile, and the other end of the inner liner extending to the outside of the auxiliary pile;

[0006] At least one plug weld is provided on the wall of the inner liner, and the plug weld is used to connect the inner liner to the inner wall of the auxiliary pile by plug welding.

[0007] At least one mounting groove is provided on the wall of the inner liner, and a docking hole is provided on the wall of the auxiliary pile corresponding to the position of the mounting groove. The inner wall of the mounting groove is filled with an anti-slip block, and one end of the anti-slip block extends to the inner wall of the docking hole.

[0008] Preferably, the number of plug welds is four, and the four plug welds are evenly distributed along the circumference of the inner liner.

[0009] Preferably, the length of the plug weld is 500mm, the width of the plug weld is 30mm, and the plug weld is located 500mm from the top of the inner liner.

[0010] Preferably, the number of mounting slots is four, and the four mounting slots are distributed circumferentially along the inner liner.

[0011] Preferably, the anti-blocking block is cube-shaped, with a length × width × height of 8cm × 8cm × 10cm.

[0012] Preferably, the lower part of the inner liner cylinder wall is further provided with an elliptical groove for installing a connecting device.

[0013] Preferably, the elliptical groove is located 500 mm from the lower end of the inner liner.

[0014] Preferably, the inner liner is made of steel pipe, and the inner liner has a diameter of 1438mm, a wall thickness of 25mm, and a length of 3500mm.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The auxiliary pile socket joint structure uses a high-strength, high-rigidity cylindrical guide reference pre-installed inside the auxiliary pile. The central axis of the inner liner is calibrated to coincide with the design axis of the auxiliary pile during installation. When docking, the engineering pile only needs to be inserted with the inner liner as a guide to naturally achieve precise alignment with the auxiliary pile. This fundamentally ensures the final coincidence of the central axes of the two, eliminates the errors of traditional manual adjustment, and ensures that the auxiliary pile and the engineering pile will not be misaligned after docking, making operation convenient. Attached Figure Description

[0017] Figure 1 This is a side sectional view of the present invention.

[0018] Figure 2 This is a schematic diagram of the elliptical groove hole structure of this utility model;

[0019] Figure 3 This is a top-section structural diagram of the plug weld location of this utility model;

[0020] Figure 4 This is a top-section structural diagram of the mounting groove location of this utility model;

[0021] Figure 5 This is a top-section structural diagram of the docking hole location of this utility model.

[0022] In the diagram: 1. Auxiliary pile; 2. Inner liner; 3. Plug weld; 4. Mounting groove; 5. Butt hole; 6. Anti-slip block; 7. Elliptical groove hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 The auxiliary pile socket joint structure includes: an inner liner 2 installed on the auxiliary pile 1, one end of the inner liner 2 being connected to the inner wall of the auxiliary pile 1, and the other end of the inner liner 2 extending to the outside of the auxiliary pile 1.

[0025] At least one plug weld 3 is provided on the cylinder wall of the inner liner 2. The plug weld 3 is used to connect the inner liner 2 to the inner wall of the auxiliary pile 1 by plug welding.

[0026] Please see Figure 3-5 At least one mounting groove 4 is provided on the wall of the inner liner 2, and a docking hole 5 is provided on the wall of the auxiliary pile 1 at the position corresponding to the mounting groove 4. The inner wall of the mounting groove 4 is filled with an anti-slip block 6, and one end of the anti-slip block 6 extends to the inner wall of the docking hole 5.

[0027] There are four plug welds 3, and the four plug welds 3 are evenly distributed along the circumference of the inner liner 2.

[0028] The length of the plug weld 3 is 500mm, the width of the plug weld 3 is 30mm, and the plug weld 3 is opened at a position 500mm away from the top of the inner liner 2.

[0029] There are four mounting slots 4, which are distributed around the circumference of the inner liner 2.

[0030] The anti-slip block 6 is cube-shaped, with a length × width × height of 8cm × 8cm × 10cm.

[0031] The lower part of the inner liner cylinder 2 is also provided with an elliptical groove-shaped hole 7 for installing the connecting device.

[0032] The elliptical groove 7 is located 500mm from the lower end of the inner liner 2.

[0033] The inner liner 2 is made of steel pipe with a diameter of 1438mm, a wall thickness of 25mm, and a length of 3500mm.

[0034] With the high-strength, high-rigidity cylindrical guide reference pre-installed inside the auxiliary pile 1 by the inner liner 2, the central axis of the inner liner 2 is calibrated to coincide with the design axis of the auxiliary pile 1 during installation. When docking, the engineering pile only needs to be inserted with the inner liner 2 as a guide to naturally achieve precise alignment with the auxiliary pile 1, fundamentally ensuring the final coincidence of the central axes of the two, eliminating the error of traditional manual adjustment, and ensuring that there will be no misalignment between the auxiliary pile 1 and the engineering pile after docking. This facilitates operation, and there is no need for tedious real-time measurement and repeated adjustment during construction. The engineering pile only needs to be hoisted and guided to the opening of the inner liner 2, and the inner wall of the inner liner 2 can automatically complete the correction and guidance, greatly reducing the difficulty of operation and technical requirements, and significantly improving the efficiency and success rate of docking construction.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belled joint structure for a pile, characterized by include: An inner lining cylinder (2) is installed on the auxiliary pile (1), one end of which is connected to the inner wall of the auxiliary pile (1), and the other end of which extends to the outside of the auxiliary pile (1). At least one plug weld (3) is provided on the cylinder wall of the inner liner (2), and the plug weld (3) is used to connect the inner liner (2) to the inner wall of the auxiliary pile (1) by plug welding. At least one mounting groove (4) is provided on the wall of the inner liner (2), and a docking hole (5) is provided on the wall of the auxiliary pile (1) corresponding to the mounting groove (4). The inner wall of the mounting groove (4) is filled with an anti-slip block (6), and one end of the anti-slip block (6) extends to the inner wall of the docking hole (5).

2. A pile (1) socket joint structure according to claim 1, characterized in that, The number of plug welds (3) is four, and the four plug welds (3) are evenly distributed along the circumference of the inner liner (2).

3. A pile (1) socket joint structure according to claim 2, characterised in that, The length of the plug weld (3) is 500mm, the width of the plug weld (3) is 30mm, and the plug weld (3) is located 500mm away from the top of the inner liner (2).

4. A pile (1) socket joint structure according to claim 1, characterized in that, The number of the mounting slots (4) is four, and the four mounting slots (4) are distributed circumferentially along the inner liner (2).

5. A pile (1) socket joint structure according to claim 1, characterized in that, The anti-blocking block (6) is cube-shaped, with a length × width × height of 8cm × 8cm × 10cm.

6. A pile (1) socket joint structure according to claim 1, characterized in that, The lower part of the inner liner (2) is also provided with an elliptical groove-shaped hole (7) for installing a connecting device.

7. A pile (1) socket joint structure according to claim 6, characterised in that, The elliptical groove (7) is located 500 mm from the lower end of the inner liner (2).

8. A pile (1) socket joint structure according to claim 1, characterized in that, The inner liner (2) is made of steel pipe, with a diameter of 1438 mm, a wall thickness of 25 mm, and a length of 3500 mm.