Pile body vibration device of flow state solidified soil post-pitching pile
By installing a vibratory motor, an inverted L-shaped frame, and a vertical plate support structure on the prestressed square pile, the resistance of the fluidized solidified soil is reduced by using vibration, which solves the problem of high pile driving resistance in the static pressure method for prestressed square piles, improves construction efficiency, and reduces noise pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SANJIAN CONSTR ENG MANAGEMENT
- Filing Date
- 2025-02-17
- Publication Date
- 2026-04-28
AI Technical Summary
The static pressure method results in high resistance to the driving of prestressed square piles, leading to low construction efficiency, and also causes significant noise pollution, especially in urban residential areas.
The support structure, which connects the vibratory motor to the pile head, uses a combination of an inverted L-shaped frame and a vertical plate to reduce the resistance of the fluidized solidified soil through vibration. Combined with telescopic rods and anti-slip plates, the support is securely fitted onto the outside of the pile head to prevent detachment.
It reduces the difficulty of driving prestressed square piles, improves construction efficiency, reduces noise pollution, and ensures the smoothness and stability of construction.
Smart Images
Figure CN224173314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile driving construction, specifically a pile vibration device for post-insertion piles in fluidized solidified soil. Background Technology
[0002] Traditional pile driving methods all involve bored cast-in-place piles. This method has a long construction period, and the resulting concrete piles have limited crack resistance and bending strength, making them prone to cracking after long-term use, affecting the durability and stability of the pile foundation. The emergence of prestressed square piles has partially improved these problems. The specific construction method involves injecting fluidized solidified soil into the bored pile after drilling to replace the slurry, then pressing the prestressed square pile to the design elevation. After the fluidized solidified soil has initially set, post-grouting treatment is performed at the pile bottom, resulting in a more robust prestressed square pile with greater load-bearing capacity. With its superior strength and shorter construction cycle, prestressed square piles are increasingly being used in pile foundation construction. However, in order to reduce noise impact on the surrounding environment, especially near urban residential areas, static pressure method is generally used instead of hammering method during the driving of prestressed square piles. This minimizes the noise impact on the surrounding environment. However, during static pressure construction, the injected fluidized solidified soil already has a certain strength, which causes certain resistance during the driving of prestressed square piles using a static pressure machine. This increases the difficulty of driving prestressed square piles and reduces the efficiency of static pressure construction. Utility Model Content
[0003] The purpose of this utility model is to provide a pile vibration device for post-insertion piles in fluidized solidified soil. It can solve the technical problem of large resistance during static pressure pile driving. By using the connection and cooperation between the vibration motor and the pile head to vibrate the prestressed square pile, the resistance of the fluidized solidified soil to the prestressed square pile is reduced, the difficulty of pile driving construction is reduced, and the efficiency of pile foundation construction is improved.
[0004] To achieve the above objectives, this utility model employs the following technical solution:
[0005] A vibration device for post-insertion piles in fluidized solidified soil includes a support sleeved on the outside of the pile head. A vibration motor is provided on the top of the support. The support includes an inverted L-shaped frame. The vibration motor is fixed on the horizontal part of the inverted L-shaped frame. A vertical plate is rotatably connected to one end of the horizontal part of the inverted L-shaped frame. The structure composed of the inverted L-shaped frame and the vertical plate is sleeved on the outside of the pile head. A telescopic rod is provided on the inverted L-shaped frame. The movable end of the telescopic rod is provided with a locking cap that is movably connected to the vertical plate. Anti-slip plates that contact the side of the pile head are provided on both the inverted L-shaped frame and the vertical plate.
[0006] Furthermore, the vertical plate is provided with a first through hole, and the movable end of the telescopic rod passes through the first through hole and is movably connected to the lock cap.
[0007] Furthermore, the lock cap is threaded to the movable end of the telescopic rod, and the longitudinal section diameter of the lock cap is larger than the diameter of the first through hole.
[0008] Furthermore, the vertical portion of the inverted L-shaped frame is provided with a second through hole, and the movable end of the telescopic rod passes through the second through hole and the first through hole in sequence before being movably connected to the lock cap.
[0009] Furthermore, the lock cap is equipped with a pressure sensor for use with the vertical plate.
[0010] Furthermore, the transverse portion of the inverted L-shaped frame is provided with multiple lifting rings.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. The structure of this utility model is achieved by setting a vibration motor on the support. The support consists of an inverted L-shaped frame and a vertical plate that rotates with one end of the horizontal part of the inverted L-shaped frame. The support is sleeved on the outside of the pile head. This structure utilizes the cooperation between the vibration motor and the support to make the prestressed square pile vibrate continuously during the pile driving process, thereby overcoming the resistance brought by the fluid solidified soil in the pile hole, making the pressing process smoother, reducing the difficulty of pile driving, and improving the efficiency of pile driving.
[0013] 2. A telescopic rod is installed on the inverted L-shaped frame. The movable end of the telescopic rod is equipped with a locking cap that is movably connected to the vertical plate. Both the inverted L-shaped frame and the vertical plate are equipped with anti-slip plates that contact the side of the pile head. This structure allows the structure consisting of the inverted L-shaped frame and the vertical plate to be fitted onto the outside of the pile head. When the telescopic rod contracts, the locking cap at the movable end of the telescopic rod causes the vertical plate to rotate and press against the pile head, thus ensuring that the support is firmly fitted onto the outside of the pile head. The anti-slip plates prevent the support from shifting relative to the pile head and prevent the support from detaching from the pile head during the vibration of the prestressed square pile by the vibrating motor. This improves the robustness of the vibration structure and ensures the smoothness and stability of the pile foundation construction. Attached Figure Description
[0014] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Appendix Figure 2 This is a schematic diagram of the application scenario of this utility model.
[0016] Appendix Figure 3 This is a structural schematic diagram of the telescopic rod of this utility model.
[0017] The labels shown in the attached diagram:
[0018] 1. Pile head; 2. Vibration motor; 3. Inverted L-shaped frame; 4. Vertical plate; 5. Telescopic rod; 6. Lock cap; 7. Anti-slip plate; 8. First through hole; 9. Second through hole; 10. Pressure sensor; 11. Lifting ring. Detailed Implementation
[0019] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0020] Reference Figure 1 and Figure 2 This utility model describes a pile vibration device for post-insertion piles in fluidized solidified soil. The main structure includes a support frame fitted around the outside of the pile head 1, which provides support. The support frame is typically made of metal or wood and is fitted onto the top of the prestressed square pile head 1. A vibration motor 2 is mounted on the top of the support frame. The vibration motor 2 uses a commercially available motor structure with vibration capabilities; specifically, it can be a Qingsong YZS series 20-2 three-phase asynchronous vibration motor 2 manufactured by Xinxiang Qingsong Electromechanical Manufacturing Co., Ltd. The support frame includes an inverted L-shaped frame 3, which contacts the top and side of the pile head 1. The vibration motor 2 is fixed to the horizontal portion of the inverted L-shaped frame 3 by welding or bolts. One end of the horizontal portion of the inverted L-shaped frame 3 is rotatably connected to a vertical plate 4 via a pin or hinge. The vertical plate 4 contacts the side of the pile head 1. The structure consisting of the inverted L-shaped frame 3 and the vertical plate 4 is fitted around the outside of the pile head 1. This structure allows the inverted L-shaped frame 3 and the vertical plate 4 to form a complete set. The inverted U-shaped structure located on the outside of the pile head 1 allows for better contact and connection with the pile head 1. The inverted L-shaped frame 3 is equipped with a telescopic rod 5, which extends laterally. The movable end of the telescopic rod 5 is equipped with a locking cap 6 that is movably connected to the vertical plate 4. When the vertical plate 4 rotates to fit vertically against the side of the pile head 1, the telescopic rod 5 retracts, causing the locking cap 6 at the movable end and the vertical plate 4 to press against the pile head 1. This ensures that the structure composed of the inverted L-shaped frame 3 and the vertical plate 4 is firmly attached to the pile head 1, making it difficult for the vibration motor 2 to separate from the prestressed square pile during the pile driving process. This ensures continuous vibration of the prestressed square pile and guarantees the stability and smoothness of the pressing process. Both the inverted L-shaped frame 3 and the vertical plate 4 are fixed with anti-slip plates 7 that contact the side of the pile head 1 by welding or bolting. The anti-slip plates 7 have a structure with anti-slip stripes on the surface, increasing the friction at the contact point with the pile head 1 and further improving the firmness of the contact point between the support and the pile head 1.
[0021] Preferably, the vertical plate 4 is provided with a through hole 8, and the movable end of the telescopic rod 5 passes through the through hole 8 and is movably connected to the locking cap 6. This structure allows the movable end of the telescopic rod 5 to be connected to the locking cap 6 through the through hole 8, thereby achieving a detachable connection with the vertical plate 4. When the telescopic rod 5 retracts, it can drive the vertical plate 4 to press and fix the pile head 1 under the obstruction of the locking cap 6. The structure is simple and improves the convenience of detachable connection between the locking cap 6 and the vertical plate 4.
[0022] Preferably, the locking cap 6 is threadedly connected to the movable end of the telescopic rod 5. The longitudinal section diameter of the locking cap 6 is larger than the diameter of the first through hole 8. With this structure, when disassembling the locking cap 6, it is only necessary to rotate the locking cap 6 to install or remove the locking cap 6 from the movable end of the telescopic rod 5 under the action of the threaded connection. After the locking cap 6 is installed, it contacts the vertical plate 4, so that the vertical plate 4 can be smoothly moved when the telescopic rod 5 retracts. This further simplifies the steps of assembling and disassembling the locking cap 6 and the vertical plate 4, improves the convenience of disassembly and assembly, and makes it easy to separate the telescopic rod 5 and the vertical plate 4 after the pile driving is completed, so as to facilitate the overall recycling of the vibration device.
[0023] Preferably, the vertical portion of the inverted L-shaped frame 3 is provided with a through second hole 9. The movable end of the telescopic rod 5 passes through the second through hole 9 and the first through hole 8 in sequence and is movably connected to the locking cap 6. The size of the second through hole 9 is smaller than that of the main body of the telescopic rod 5. This structure allows the telescopic rod 5 to be welded or bolted to the inverted L-shaped frame 3. After the movable end of the telescopic rod 5 passes through the second through hole 9 and the first through hole 8 in sequence, the main body of the telescopic rod 5 and the locking cap 6 can respectively contact the vertical portion of the inverted L-shaped frame 3 and the vertical plate 4. When the telescopic rod 5 retracts, the vertical portion of the inverted L-shaped frame 3 and the vertical plate 4 can also clamp and fix the pile head 1, further simplifying the disassembly steps of the vibration device after pressing and improving its convenience for subsequent recycling.
[0024] Preferred, refer to Figure 3 The locking cap 6 is equipped with a pressure sensor 10 that works in conjunction with the vertical plate 4. The pressure sensor 10 is in contact with the vertical plate 4. This structure allows the pressure sensor 10 to be squeezed and generate a pressure value when the telescopic rod 5 retracts, thereby displaying the degree of compression between the bracket and the pile head 1. This makes the firmness of the fit between the bracket and the pile head 1 quantifiable, which facilitates timely adjustment of the degree of compression when the pressure value changes, ensuring a firm fit between the vibrating motor 2 and the pile head 1 throughout the entire pile driving process.
[0025] Preferably, multiple lifting rings 11 are fixed to the transverse portion of the inverted L-shaped frame 3 by welding or bolts. The lifting rings 11 are connected to the hook of the crane, which facilitates the use of the crane to lift the prestressed square pile and ensures the stability of the prestressed square pile during the pile driving process.
[0026] Working Principle: The structure of this utility model uses a vibrating motor 2 mounted on a support frame. The support frame consists of an inverted L-shaped frame 3 and a vertical plate 4 that rotates at one end of the transverse portion of the inverted L-shaped frame 3. The support frame is fitted onto the outside of the pile head 1. This structure utilizes the cooperation between the vibrating motor 2 and the support frame to allow the prestressed square pile to vibrate continuously during the pile driving process, thereby overcoming the resistance brought by the fluidized solidified soil in the pile hole, making the driving process smoother, reducing the difficulty of pile driving, and improving the efficiency of pile driving. A telescopic rod 5 is provided on the inverted L-shaped frame 3, and the movable end of the telescopic rod 5 is provided with a locking cap 6 that is movably connected to the vertical plate 4. Both the inverted L-shaped frame 3 and the vertical plate 4 are equipped with anti-slip plates 7 that contact the side of the pile head 1. This structure allows the structure consisting of the inverted L-shaped frame 3 and the vertical plate 4 to be fitted onto the outside of the pile head 1. When the telescopic rod 5 is contracted, the locking cap 6 at the movable end of the telescopic rod 5 drives the vertical plate 4 to rotate and press against the pile head 1, thus ensuring that the support is firmly fitted onto the outside of the pile head 1. The anti-slip plates 7 prevent the support from shifting relative to the pile head 1 and prevent the support from detaching from the pile head 1 during the vibration of the prestressed square pile by the vibration motor 2. This improves the robustness of the vibration structure and ensures the smoothness and stability of the pile foundation construction.
Claims
1. A vibration device for post-insertion piles in fluidized solidified soil, comprising a support sleeved on the outside of the pile head (1), wherein a vibration motor (2) is provided on the top of the support, characterized in that: The support includes an inverted L-shaped frame (3), the vibration motor (2) is fixed on the horizontal part of the inverted L-shaped frame (3), one end of the horizontal part of the inverted L-shaped frame (3) is rotatably connected to a vertical plate (4), the structure composed of the inverted L-shaped frame (3) and the vertical plate (4) is sleeved on the outside of the pile head (1), the inverted L-shaped frame (3) is provided with a telescopic rod (5), the movable end of the telescopic rod (5) is provided with a locking cap (6) that is movably connected to the vertical plate (4), and both the inverted L-shaped frame (3) and the vertical plate (4) are provided with anti-slip plates (7) that contact the side of the pile head (1).
2. The pile vibration device for post-insertion piles in fluidized solidified soil according to claim 1, characterized in that: The vertical plate (4) is provided with a first through hole (8), and the movable end of the telescopic rod (5) passes through the first through hole (8) and is movably connected to the lock cap (6).
3. The pile vibration device for post-insertion piles in fluidized solidified soil according to claim 2, characterized in that: The lock cap (6) is threaded to the movable end of the telescopic rod (5), and the longitudinal section diameter of the lock cap (6) is larger than the diameter of the first through hole (8).
4. The pile vibration device for post-insertion piles in fluidized solidified soil according to claim 2, characterized in that: The vertical part of the inverted L-shaped frame (3) is provided with a second through hole (9), and the movable end of the telescopic rod (5) passes through the second through hole (9) and the first through hole (8) in sequence and is movably connected to the lock cap (6).
5. The pile vibration device for post-insertion piles in fluidized solidified soil according to claim 2, characterized in that: The lock cap (6) is equipped with a pressure sensor (10) for use with the vertical plate (4).
6. The pile vibration device for post-insertion piles in fluidized solidified soil according to claim 1, characterized in that: The inverted L-shaped frame (3) has multiple lifting rings (11) on its transverse portion.