Pile clamping device
By designing a pile clamping device for marine engineering, the hydraulically driven pile pin clamping with the inner wall of the pipe pile is solved, and a more efficient and safe connection between the pipe pile and the conduit frame is achieved.
Patent Information
- Application Number
- CN202420879727.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The prior art manually installs positioning pins underwater, resulting in unsafe construction and low efficiency, making it difficult to effectively fix pipe piles and conduit frames.
A pile clamping device is designed, which is arranged on the outer side wall of the main conduit leg, and adopts a combined structure of an outer pin sleeve, an inner pin sleeve and a pile pin. The pile pin movement is driven by hydraulic oil to achieve tight clamping with the inner wall of the pipe pile cavity.
It improves construction efficiency, reduces labor costs and risks, enhances the stable connection between pipe piles and conduit frames, prevents displacement under the impact of ocean currents, and reduces the reduction of cement shear bonding force.
Smart Images
Figure CN222685478U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of marine engineering equipment, in particular to a pile clamp between a pipe pile and a jacket. Background Art
[0002] At present, the existing technology connects the pipe pile with the positioning pin on the pile tip, and the guide pin is installed and fixed by personnel underwater, which is not only unsafe but also has very low construction efficiency. Utility Model Content
[0003] In order to solve the above problems, the present invention adopts the following technical solutions:
[0004] The pile clamp is arranged on the outer side wall of the main pipe leg, and the pile clamp has
[0005] The outer sleeve has a movable inner cavity.
[0006] The inner pin sleeve is embedded in the inner edge of the outer port of the movable inner cavity, and the inner pin sleeve is sleeved on the pile pin.
[0007] a clamping pin, movably disposed in the movable inner cavity, one end of the clamping pin being able to extend outward and protrude from the outer side wall of the main pipe leg;
[0008] The movable inner cavity is used to set hydraulic oil, and the pile pin can be driven to move in the movable inner cavity by adjusting the hydraulic oil.
[0009] In some embodiments, the outer end of the pile pin has a toothed pin head.
[0010] In some embodiments, there is a seal between the inner pin sleeve and the inner wall of the outer pin sleeve, and between the inner pin sleeve and the outer wall of the pile pin.
[0011] In some embodiments, a seal is provided between the tail end of the pile pin and the inner wall of the active inner cavity. The tail end of the pile pin separates the active inner cavity into a first inner cavity and a second inner cavity. Both the first inner cavity and the second inner cavity are connected to the oil pressure controller.
[0012] In some embodiments, the first inner cavity is provided with a first oil port, and the second inner cavity is provided with a second oil port.
[0013] In some embodiments, the main pipe leg is sleeved in the pipe pile; when the pile clamping pin can abut against the inner wall of the inner cavity of the pipe pile.
[0014] In some embodiments, the tail end of the outer pin sleeve has a removable tail cap.
[0015] In some embodiments, a groove is formed on the outer wall of the main pipe leg, and a pile clamp mounting seat is provided in the groove. The pile clamp is mounted on the main pipe leg via the pile clamp mounting seat.
[0016] In some embodiments, a plurality of pile clamps are provided on the outer wall of the main pipe leg.
[0017] In some embodiments, the inner wall of the pipe pile has a limiting groove adapted to the pile clamp.
[0018] The beneficial effects of the utility model are:
[0019] It can reduce labor costs and personal injuries during the construction process, improve the construction efficiency of the entire lifting process; improve the economic benefits of the entire project; prevent the displacement of piles and jackets under the impact of ocean currents; prevent the reduction of cement shear bonding strength when cement slurry solidifies, and reduce installation risks. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is the state diagram of the pile clamp in contraction;
[0021] Figure 2 This is the state diagram of the pile clamp extending;
[0022] Figure 3 Figure 1 is a diagram of various shapes of pile clamps;
[0023] Figure 4 for Figure 3 Middle AA cross-section;
[0024] Figure 5 Diagram of the main duct leg installation status Figure 1 ;
[0025] Figure 6 Diagram of the main duct leg installation status Figure 2 . DETAILED DESCRIPTION
[0026] The pile clamp is arranged on the outer side wall of the main pipe leg, and the pile clamp has
[0027] Export sleeve 100, such as Figure 1 As shown in FIG, there is an active inner cavity 110,
[0028] The inner pin sleeve 300 is embedded in the inner edge of the outer end of the movable inner cavity 110, and the inner pin sleeve 300 is sleeved on the pile pin 200.
[0029] A clamping pin 200 is movably disposed in the movable inner cavity 110, and one end of the clamping pin 200 can extend outward and protrude from the outer side wall of the main pipe leg;
[0030] The movable inner cavity 110 is used to set hydraulic oil, and the pile pin 200 can be driven to move in the movable inner cavity 110 by adjusting the hydraulic oil.
[0031] In some embodiments, the outer end of the pile pin 200 has a toothed pin head 210 .
[0032] In some embodiments, there are seals between the inner pin sleeve 300 and the inner wall of the outer pin sleeve 100 and between the inner pin sleeve 300 and the outer wall of the pile pin 200.
[0033] like Figure 3 As shown in , a seal is provided between the tail end of the pile pin 200 and the inner wall of the active inner cavity 110 , and the tail end of the pile pin 200 separates the active inner cavity 110 into a first inner cavity 111 and a second inner cavity 112 , both of which are connected to the oil pressure controller.
[0034] In some embodiments, the tail end of the outer pin sleeve 100 has a detachable tail cover, thereby making it easier to disassemble and install components such as the pile pin 200 in the outer pin sleeve 100.
[0035] comprehensive Figure 1 、 2 As shown, the first inner cavity 111 is provided with a first oil port 113, and the second inner cavity 112 is provided with a second oil port 114. When pressure is applied to the cavity through the first oil port 113, the oil pressure in the first inner cavity 111 is increased, causing the pile pin 200 to move toward the tail, forming Figure 1 When the second oil port 114 is used to apply pressure to the cavity, the oil pressure in the second inner cavity 112 increases, causing the pile pin 200 to move toward the head and extend, forming Figure 2 The form shown.
[0036] like Figure 3 As shown in FIG, the main pipe leg is sleeved in the pipe pile 30; when the pile pin 200 can abut against the inner wall of the inner cavity of the pipe pile.
[0037] like Figure 4 As shown in , the outer wall of the main pipe leg is provided with a groove body, the groove body has a pile clamp mounting seat, and the pile clamp is mounted on the main pipe leg through the pile clamp mounting seat.
[0038] In some embodiments, a plurality of pile clamps are provided on the outer wall of the main pipe leg.
[0039] In some embodiments, the inner wall of the pipe pile 30 has a limiting groove 31 adapted to the pile clamp.
[0040] During the installation process of the pile clamp:
[0041] 1. Calculate the model and diameter of the pile clamp based on the pile tip diameter, pipe pile diameter and other parameters; 2. Select and determine the stroke of the pile clamp cylinder based on the inner diameter of the pipe pile, the outer diameter of the jacket pile tip, and the gap between the guide block; 3. Determine the clamping force required for the pile clamp based on the model of the pipe pile, select the pressure of the cylinder and the number of cylinders on the pile clamp; 4. Determine the length of the hydraulic pipeline and power cord of each pile clamp based on the center size of the jacket to ensure that each pile clamp can be controlled individually; 5. An automated control system module is installed inside each pile clamp to achieve real-time position monitoring and control; 6. Jacket manufacturing process 7. Before the pile tip and the main leg of the jacket are closed, the pile clamps with the automatic control system module are installed at the corresponding positions of the pile tip, and the telescopic rod of the pile clamp's oil cylinder is ensured to be coaxial with the opening on the pile tip; 7. The hydraulic pipelines and power lines on the pile clamp pass through the main legs and diagonal braces of the jacket and are reserved above the jacket platform to facilitate the connection with the electric pump and PLC during subsequent pile sinking and grouting; 8. After the pile clamp is completed, the pile tip and the main leg of the jacket are closed and the next process is entered until the jacket is completed; 9. After the jacket is completed, it is transported to the machine site for connection between the jacket and the piles and grouting 10. Use the lifting vessel to hoist the jacket onto the sunken pile, slowly lower the hook, and use the guide block on the pile tip to insert the jacket pile tip into the pile. 11. Start the PLC control system to monitor the relative position of the pile clamp and the pile. 12. When the jacket is lowered to the design size, the PLC automatic control system automatically identifies its position, starts the pile clamp electric pump, and the telescopic rod of the pile clamp cylinder automatically pushes against the inner wall of the pile, so that the high-strength tooth structure clamps the inner wall of the pile. 13. Since the four main legs of the jacket are lowered at an unsteady speed, the jacket will not fall. 1. The PLC automatic control system automatically identifies the horizontality of the jacket and can automatically tighten and loosen the four sets of pile clamp cylinders repeatedly until the jacket is leveled. 14. Once the jacket is leveled, the high-strength tooth structures of all four sets of pile clamp cylinders tightly clamp the inner walls of the piles, ensuring a stable connection between the jacket and the piles. 15. After the jacket and piles are connected, grouting operations are required. Due to the function of the pile clamps, during the grouting process, the pile clamps can effectively prevent relative displacement between the piles and the jacket main pipe legs, prevent the cement shear bond from decreasing during the solidification of the cement slurry, and reduce installation risks.
[0042] It will be clear to those skilled in the art that various modifications to the above embodiments may be made without departing from the overall spirit and concept of the present invention. All such modifications fall within the scope of protection of the present invention. The protection scheme of the present invention shall be subject to the claims appended hereto.
Claims
1. A pile clamp, characterized in that: The pile clamp is arranged on the outer side wall of the main pipe leg. The outer pin sleeve (100) has a movable inner cavity (110). The inner pin sleeve (300) is embedded in the inner edge of the outer port of the movable inner cavity (110), and the inner pin sleeve (300) is sleeved on the pile pin (200). A pile pin (200) is movably disposed in the movable inner cavity (110), and one end of the pile pin (200) can extend outward and protrude from the outer side wall of the main pipe leg; The movable inner cavity (110) is used to contain hydraulic oil, and the pile pin (200) can be driven to move in the movable inner cavity (110) by adjusting the hydraulic oil.
2. The pile clamp according to claim 1, characterized in that: The outer end of the pile pin (200) has a toothed pin head (210).
3. The pile clamp according to claim 1, characterized in that: A seal is provided between the inner pin sleeve (300) and the inner wall of the outer pin sleeve (100), and between the inner pin sleeve (300) and the outer wall of the pile pin (200).
4. The pile clamp according to claim 1, characterized in that: A seal is provided between the tail end of the pile pin (200) and the inner wall of the active inner cavity (110), and the tail end of the pile pin (200) divides the active inner cavity (110) into a first inner cavity (111) and a second inner cavity (112), and both the first inner cavity (111) and the second inner cavity (112) are connected to a hydraulic controller.
5. The pile clamp according to claim 4, characterized in that: The first inner cavity (111) is provided with a first oil port (113), and the second inner cavity (112) is provided with a second oil port (114).
6. The pile clamp according to claim 1, characterized in that: The main pipe leg is sleeved in the pipe pile (30); when the pile clamping pin (200) can abut against the inner wall of the inner cavity of the pipe pile.
7. The pile clamp according to claim 1, characterized in that: The tail end of the outer pin sleeve (100) is provided with a detachable tail cover.
8. The pile clamp according to claim 1, characterized in that: A groove body is formed on the outer wall of the main pipe leg. A pile clamp mounting seat is provided in the groove body. The pile clamp is mounted on the main pipe leg through the pile clamp mounting seat.
9. The pile clamp according to claim 8, characterized in that: The outer wall of the main pipe leg is provided with a plurality of pile clamps.
10. The pile clamp according to claim 6, characterized in that: The inner wall of the pipe pile (30) is provided with a limiting groove (31) adapted to the pile clamp.