A piling mechanism for improving the stability of a pile foundation in a shallow sea area
Patent Information
- Application Number
- CN202611043212.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-14
- Publication Date
- 2026-08-18
AI Technical Summary
[0002]海洋桩基是海洋工程中最核心的基础形式，广泛应用于跨海大桥、港口码头、海上风电、海洋油气平台、海底隧道等领域，在海洋工程中有着不可替代的地位；打桩是桩基埋入海底不可缺少的步骤，对于深海域的海洋桩基，通常采用大型设备进行打桩工序，桩基的稳定和精准性得以保证，而对于浅海域的海洋桩基，采用大型设备进行打桩经济效益较为低下，但如果采用常规打桩机进行打桩，由于海水的阻力，也会使得打桩效率以及打桩精度被影响，故有待改善
1.当桩基沉入海底后，作业船移动至对应的施工海域，利用起吊平台上的第一卷扬机构将打桩导管下放，使得打桩导管底部的通口对准桩基顶部，桩基通过通口进入打桩导管内部，第一卷扬机构持续运行，直至打桩导管底部与海底接触后停止，抽水机构启动，通过排水孔抽出打桩导管内部的海水，使得第二卷扬机构在下放打桩锤时，消除海水的阻碍，减小阻力，从而提高打桩的稳定性、精准性以及打桩效率；
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Figure CN122589032A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of marine engineering equipment technology, and in particular to a piling mechanism for improving the stability of pile foundations in shallow sea areas. Background Technology
[0002] Marine pile foundations are the most fundamental form of foundation in marine engineering, widely used in cross-sea bridges, ports and wharves, offshore wind power, offshore oil and gas platforms, and subsea tunnels, holding an irreplaceable position in marine engineering. Pile driving is an indispensable step in burying pile foundations into the seabed. For deep-sea marine pile foundations, large-scale equipment is usually used for the pile driving process, ensuring the stability and accuracy of the pile foundation. However, for shallow-sea marine pile foundations, using large-scale equipment for pile driving is less economical. If conventional pile drivers are used, the resistance of seawater will also affect the pile driving efficiency and accuracy, so improvements are needed. Summary of the Invention
[0003] In order to improve the stability, accuracy and efficiency of pile driving for marine foundations in shallow sea areas, this application provides a pile driving mechanism for improving the stability of pile foundations in shallow sea areas.
[0004] The piling mechanism for improving the stability of pile foundations in shallow sea areas provided in this application adopts the following technical solution: A piling mechanism for improving the stability of pile foundations in shallow sea areas includes a lifting platform. A first winch mechanism is provided at the bottom of the lifting platform. A piling guide pipe for driving pile foundations is hoisted on the first winch mechanism. An opening for the pile foundation to enter is provided on the bottom wall of the piling guide pipe. A second winch mechanism is provided on the top wall inside the piling guide pipe. A piling hammer is hoisted on the second winch mechanism. A plurality of drainage holes are provided on the outer wall of the bottom end of the piling guide pipe. Each drainage hole is correspondingly provided with a pumping mechanism, which is located on the outer wall of the piling guide pipe.
[0005] By adopting the above technical solution, after the pile foundation is sunk into the seabed, the work vessel moves to the corresponding construction area and uses the first winch mechanism on the hoisting platform to lower the piling guide pipe, so that the opening at the bottom of the piling guide pipe is aligned with the top of the pile foundation. The pile foundation enters the piling guide pipe through the opening. The first winch mechanism continues to operate until the bottom of the piling guide pipe contacts the seabed and then stops. The pumping mechanism is activated to pump out the seawater inside the piling guide pipe through the drainage hole, so that when the second winch mechanism lowers the piling hammer, it eliminates the obstruction of the seawater and reduces the resistance, thereby improving the stability, accuracy and efficiency of piling.
[0006] Preferably, each corner of the piling guide pipe is provided with a hook, and a movable sling is connected to the hook; the bottom wall of the lifting platform is provided with several adjustment components, each corresponding to a hook. Each adjustment component includes two fixed blocks, an adjusting screw, a limiting rod, an adjusting block, and an adjusting drive component. The two fixed blocks are arranged parallel to each other on the bottom wall of the lifting platform. The adjusting screw is rotatably connected between the two fixed blocks. The limiting rod is arranged between the two fixed blocks and parallel to the adjusting screw. The adjusting block is sleeved on the periphery of the adjusting screw. The adjusting screw and the adjusting block are threaded together. The limiting rod passes through the adjusting block. The adjusting drive component is located on the outer wall of one fixed block. The output shaft of the adjusting drive component is connected to the adjusting screw. The end of the movable sling away from the hook is connected to the adjusting block.
[0007] By adopting the above technical solution, when the piling guide pipe deviates during its settlement into the seabed, causing it to lose its vertical orientation, the piling guide pipe can be pulled back to a vertical state by moving the corresponding adjustment components and using the moving slings. This allows the piling guide pipe to settle into the seabed in a vertical state, reducing the time required for subsequent verticality adjustments, facilitating docking with the pile foundation, and thus improving the stability and accuracy of piling.
[0008] Preferably, the connection points between the movable sling, the adjusting block, and the hook are all made of a high-toughness elastic material.
[0009] By adopting the above technical solution, the use of high-toughness elastic material at the connection of the movable sling can prevent the hook, movable sling, and other structures from breaking during the adjustment process, thereby improving stability and safety.
[0010] Preferably, the top outer wall of the piling guide pipe is provided with several mounting plates, and each mounting plate is provided with a locking ring on its surface. The bottom wall of the lifting platform is provided with several sets of locking components corresponding to the mounting plates. The locking components include two vertically arranged outer plates and a pin component provided on the outer surface of one outer plate. The other outer plate is provided with a hole for the pin to pass through, and a clearance groove is reserved between the two outer plates for the locking ring to enter.
[0011] By adopting the above technical solution, when the device of this application is not driving piles, the pile driving guide tube needs to move together with the lifting platform and the working vessel. The pile driving guide tube can be locked by the outer plates on both sides, the locking ring and the pin components to prevent the pile driving guide tube from shaking significantly during the movement of the vessel, which would reduce the stability of the vessel. This improves the stability and safety of the pile driving mechanism of this application during the movement and transportation process.
[0012] Preferably, the inner wall of the piling guide tube is rotatably connected to two partition plates, which are located below the piling hammer. When the two partition plates are closed, the interior of the piling guide tube is divided into two independent spaces, upper and lower.
[0013] By adopting the above technical solution, two closable partition plates are set to prevent seawater from entering above the partition plates and causing corrosion and damage to the pile hammer, the second winch mechanism, etc., thus extending the service life of the pile driving mechanism of this application.
[0014] Preferably, the sidewalls of the two partition plates that are close to each other are provided with stepped grooves that can be interlocked.
[0015] By adopting the above technical solution, the sealing effect of the partition plate can be further improved by setting the stepped groove.
[0016] Preferably, a water-proof baffle is provided inside the opening, and the water-proof baffle has a through hole along its thickness for the top of the pile foundation to pass through.
[0017] By adopting the above technical solution and setting up a water-proof baffle, seawater can be prevented from entering after the seawater inside the piling guide pipe is extracted, thereby reducing the resistance of seawater to the piling hammer and improving the stability, accuracy and efficiency of piling.
[0018] Preferably, the water-proof baffle is detachably connected to the piling guide pipe.
[0019] By adopting the above technical solution, based on pile foundations of different sizes, water-proof baffles with connecting holes of different diameters can be replaced, thereby effectively reducing the amount of seawater entering the pile driving guide after the seawater is pumped out, thereby further reducing the resistance generated by the seawater on the falling pile hammer and further improving the pile driving efficiency.
[0020] Preferably, the bottom end of the piling guide pipe has a guide slope.
[0021] By adopting the above technical solution and setting a guide slope, the bottom of the piling guide pipe can be partially embedded in the seabed when it sinks to the seabed, thereby improving the stability of the piling guide pipe on the seabed and thus improving the stability and accuracy of piling.
[0022] Preferably, the bottom outer wall of the piling guide pipe is provided with several counterweights.
[0023] By adopting the above technical solution and setting counterweights, the piling guide pipe can be kept vertical and sink into the seawater, thereby ensuring the verticality and accuracy of subsequent piling.
[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. After the pile foundation is sunk into the seabed, the work vessel moves to the corresponding construction area and uses the first winch mechanism on the hoisting platform to lower the piling guide pipe, so that the opening at the bottom of the piling guide pipe is aligned with the top of the pile foundation. The pile foundation enters the piling guide pipe through the opening. The first winch mechanism continues to operate until the bottom of the piling guide pipe contacts the seabed and then stops. The pumping mechanism is activated to pump out the seawater inside the piling guide pipe through the drainage hole, so that when the second winch mechanism lowers the piling hammer, it eliminates the obstruction of the seawater and reduces the resistance, thereby improving the stability, accuracy and efficiency of piling. 2. This application includes a movable sling and adjustment components. When the piling guide pipe deviates during its settlement into the seabed, causing it to lose its vertical orientation, the movable sling pulls the piling guide pipe back to a vertical position by moving the adjustment components in the corresponding direction. This allows the piling guide pipe to settle into the seabed in a vertical state, reducing the time required for subsequent verticality adjustments and facilitating docking with the pile foundation, thereby improving the stability and accuracy of piling. 3. This application is equipped with a locking component. When the device of this application is not driving piles, the pile driving guide tube needs to move together with the lifting platform and the working vessel. The pile driving guide tube can be locked by the outer plates on both sides, the locking ring and the pin component to prevent the pile driving guide tube from shaking significantly during the movement of the vessel, which would reduce the stability of the vessel. This improves the stability and safety of the pile driving mechanism of this application during the movement and transportation process. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of a piling mechanism for improving the stability of pile foundations in shallow sea areas, according to an embodiment of this application.
[0026] Figure 2 This is a cross-sectional view of the piling mechanism according to an embodiment of this application.
[0027] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.
[0028] Figure 4 This is a structural schematic diagram of the lifting platform according to an embodiment of this application.
[0029] Explanation of reference numerals in the attached drawings: 1. Lifting platform; 2. First winch mechanism; 3. Piling guide pipe; 31. Through port; 32. Drainage hole; 33. Pumping mechanism; 34. Hook; 35. Moving sling; 36. Mounting plate; 361. Locking ring; 37. Divider plate; 371. Step groove; 38. Waterproof baffle; 381. Connecting hole; 39. Guide slope; 4. Second winch mechanism; 41. Piling hammer; 5. Adjusting assembly; 51. Fixing block; 52. Adjusting screw; 53. Limiting rod; 54. Adjusting block; 55. Adjusting drive component; 6. Locking assembly; 61. Outer plate; 611. Insertion hole; 62. Pin component; 63. Relief groove; 7. Counterweight block. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0031] This application discloses a piling mechanism for improving the stability of pile foundations in shallow sea areas. (Refer to...) Figure 1 and Figure 2 The system includes a lifting platform 1, with the lifting mechanism mounted on a work vessel used for marine engineering construction. A first winch mechanism 2 is installed at the bottom of the lifting platform 1, and a piling guide tube 3 for driving marine pile foundations is hoisted on the first winch mechanism 2. The piling guide tube 3 is hollow inside, and an opening 31 for the pile foundation to enter is opened on the bottom wall of the piling guide tube 3. Several drainage holes 32 are provided on the outer wall of the bottom end of the piling guide tube 3. Each drainage hole 32 is equipped with a corresponding pumping mechanism 33. The pumping mechanism 33 is located on the outer wall of the piling guide tube 3 to pump out seawater from inside the piling guide tube 3, thereby reducing the resistance generated by the seawater to the piling process.
[0032] Reference Figure 1 and Figure 2 A water-proof baffle 38 is detachably installed on the inner wall of the opening 31. The water-proof baffle 38 has a through hole 381 along its thickness direction for the top of the pile foundation to pass through. In this embodiment, different water-proof baffles 38 have through holes 381 with different diameters. The water-proof baffle 38 can prevent seawater from entering after the seawater inside the piling guide tube 3 has been pumped out, thereby reducing the resistance of seawater to the piling hammer 41 and improving the stability, accuracy and efficiency of piling. Based on different sizes of pile foundations, water-proof baffles 38 with through holes 381 of different diameters can be replaced, thereby effectively reducing the amount of seawater entering the piling guide tube 3 after the seawater has been pumped out, thereby further reducing the resistance of seawater to the piling hammer 41 when it falls, and further improving the piling efficiency.
[0033] Reference Figure 1 , Figure 2 and Figure 3The inner top wall of the piling guide 3 is provided with a second winch mechanism 4, on which a piling hammer 41 is hoisted. Two partition plates 37 are rotatably connected to the inner wall of the piling guide 3. In this embodiment, the partition plates 37 can be flipped inside the piling guide 3 by an independently provided motor. The partition plates 37 are located below the piling hammer 41. After the two partition plates 37 are closed, the interior of the piling guide 3 is divided into two independent spaces, upper and lower. The provision of two closable partition plates 37 prevents seawater from entering above the partition plates 37 and causing corrosion and damage to the piling hammer 41, the second winch mechanism 4, etc., thus extending the service life of the piling mechanism of this application. In order to further improve the sealing effect of the contact surface of the two partition plates 37, stepped grooves 371 that can be interlocked are provided on the side walls of the partition plates 37 that are close to each other.
[0034] Reference Figure 1 and Figure 4 Each corner of the piling guide pipe 3 is equipped with a hook 34, and a movable sling 35 is connected to the hook 34. Several adjusting components 5 are provided on the bottom wall of the lifting platform 1, with each adjusting component 5 corresponding to a hook 34. Each adjusting component 5 includes two fixed blocks 51, an adjusting screw 52, a limiting rod 53, an adjusting block 54, and an adjusting drive component 55. The two fixed blocks 51 are arranged parallel to each other on the bottom wall of the lifting platform 1. The adjusting screw 52 is rotatably connected between the two fixed blocks 51. The limiting rod 53 is located between the two fixed blocks 51 and is parallel to the adjusting screw 52. The adjusting block 54 is sleeved on the periphery of the adjusting screw 52, and the adjusting screw 52 and adjusting block 54 are threaded together. The limiting rod 53 passes through the adjusting block 54. The adjusting drive component 55 is located on the outer wall of one of the fixed blocks 51, and its output shaft is connected to the adjusting screw 54. The lead screw 52 is connected, and the end of the movable sling 35 away from the hook 34 is connected to the adjusting block 54. In this embodiment, the connection between the movable sling 35 and the adjusting block 54 and the hook 34 is made of a high-toughness elastic material, such as thermoplastic polyurethane. The use of a high-toughness elastic material at the connection of the movable sling 35 can prevent the hook 34, movable sling 35 and other structures from breaking during the adjustment process, thereby improving stability and safety. When the piling guide 3 deviates during the sinking into the seabed, causing the piling guide 3 to be unable to maintain a vertical direction, the movement of the corresponding adjustment component 5 and the use of the movable sling 35 to pull the piling guide 3 can be used to return the piling guide 3 to a vertical state, allowing it to sink into the seabed in a vertical state. This reduces the time required for subsequent verticality adjustments, facilitates docking with the pile foundation, and thus improves the stability and accuracy of piling.
[0035] Reference Figure 1The bottom outer wall of the piling guide tube 3 is provided with a guide slope 39, which allows the bottom of the piling guide tube 3 to be partially embedded in the seabed when it sinks to the seabed, thereby improving the stability of the piling guide tube 3 on the seabed and thus improving the stability and accuracy of piling. Several counterweights 7 are provided on the bottom outer wall of the piling guide tube 3. The counterweights 7 are provided to ensure that the piling guide tube 3 can sink into the seawater in a vertical state, thereby facilitating the verticality and accuracy of subsequent piling.
[0036] Reference Figure 1 The top outer wall of the piling guide pipe 3 is provided with several mounting plates 36, and each mounting plate 36 is provided with a locking ring 361. The bottom wall of the lifting platform 1 is provided with several sets of locking components 6 corresponding to the mounting plates 36. The locking components 6 include two vertically arranged outer plates 61 and a pin component 62 provided on the outer surface of one outer plate 61. The other outer plate 61 is provided with a hole 611 for the pin to pass through corresponding to the pin component 62. A clearance groove 6 is reserved between the two outer plates 61 for the locking ring 361 to enter. 3. In this embodiment, the pin component 62 is composed of a miniature hydraulic cylinder and a pin. When the device of this application is not driving piles, the pile driving guide 3 needs to move together with the lifting platform 1 and the working vessel. The pile driving guide 3 can be locked by the outer plates 61 on both sides, the locking ring 361 and the pin component 62 to prevent the pile driving guide 3 from shaking significantly during the movement of the vessel, which would reduce the stability of the vessel and thus improve the stability and safety of the pile driving mechanism of this application during the movement and transportation process.
[0037] The implementation principle of a piling mechanism for improving the stability of pile foundations in shallow sea areas according to an embodiment of this application is as follows: After the pile foundation is sunk into the seabed, the work vessel moves to the corresponding construction sea area, and the first winch mechanism 2 on the hoisting platform 1 lowers the piling guide tube 3. During the sinking process, if the piling guide tube 3 tilts, the angle of the piling guide tube 3 is adjusted by the adjustment component 5 so that the opening 31 at the bottom of the piling guide tube 3 is aligned with the top of the pile foundation. The pile foundation enters the interior of the piling guide tube 3 through the opening 31. The first winch mechanism 2 continues to operate until the bottom of the piling guide tube 3 contacts the seabed and then stops. The pumping mechanism 33 is started, and the seawater inside the piling guide tube 3 is pumped out through the drainage hole 32. The partition plate 37 is opened, and the second winch mechanism 4 lowers the piling hammer 41. When the second winch mechanism 4 lowers the piling hammer 41, it eliminates the obstruction of the seawater and reduces the resistance, thereby improving the stability, accuracy and efficiency of piling.
[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A piling mechanism for improving the stability of pile foundations in shallow sea areas, characterized in that: The system includes a lifting platform, a first winch mechanism at the bottom of the lifting platform, a piling guide pipe for driving marine pile foundations is hoisted on the first winch mechanism, an opening for the pile foundation to enter is opened on the bottom wall of the piling guide pipe, a second winch mechanism is installed on the inner top wall of the piling guide pipe, and a piling hammer is hoisted on the second winch mechanism; a plurality of drainage holes are provided on the outer wall of the bottom end of the piling guide pipe, and a pumping mechanism is provided for each drainage hole, the pumping mechanism being located on the outer wall of the piling guide pipe.
2. A piling mechanism for improving the stability of pile foundations in shallow sea areas according to claim 1, characterized in that: Each corner of the piling guide pipe is equipped with a hook, and a movable sling is connected to the hook. The bottom wall of the lifting platform is equipped with several adjustment components, each corresponding to a hook. Each adjustment component includes two fixed blocks, an adjusting screw, a limiting rod, an adjusting block, and an adjusting drive component. The two fixed blocks are parallel to each other on the bottom wall of the lifting platform. The adjusting screw is rotatably connected between the two fixed blocks. The limiting rod is located between the two fixed blocks and parallel to the adjusting screw. The adjusting block is sleeved on the periphery of the adjusting screw, and the adjusting screw and adjusting block are threaded together. The limiting rod passes through the adjusting block. The adjusting drive component is located on the outer wall of one fixed block, and its output shaft is connected to the adjusting screw. The end of the movable sling away from the hook is connected to the adjusting block.
3. A piling mechanism for improving the stability of pile foundations in shallow sea areas according to claim 2, characterized in that: The connections between the movable sling, the adjusting block, and the hook are all made of high-toughness elastic material.
4. A piling mechanism for improving the stability of pile foundations in shallow sea areas according to claim 1, characterized in that: The top outer wall of the piling guide pipe is provided with several mounting plates, and each mounting plate is provided with a locking ring on its surface. The bottom wall of the lifting platform is provided with several sets of locking components corresponding to the mounting plates. The locking components include two vertically arranged outer plates and a pin component provided on the outer surface of one outer plate. The other outer plate is provided with a hole for the pin to pass through, and a clearance groove is reserved between the two outer plates for the locking ring to enter.
5. A piling mechanism for improving the stability of pile foundations in shallow sea areas according to claim 1, characterized in that: The inner wall of the piling guide tube is rotatably connected to two partition plates, which are located below the piling hammer. When the two partition plates are closed, the interior of the piling guide tube is divided into two independent spaces, upper and lower.
6. A piling mechanism for improving the stability of pile foundations in shallow sea areas according to claim 5, characterized in that: The two partition plates have stepped grooves on their sidewalls that are close to each other, which allow them to interlock.
7. A piling mechanism for improving the stability of pile foundations in shallow sea areas according to claim 1, characterized in that: A water-proof baffle is provided inside the opening, and the water-proof baffle has a through hole along its thickness for the top of the pile foundation to pass through.
8. A piling mechanism for improving the stability of pile foundations in shallow sea areas according to claim 7, characterized in that: The water-proof baffle is detachably connected to the piling guide pipe.
9. A piling mechanism for improving the stability of pile foundations in shallow sea areas according to claim 1, characterized in that: The bottom end of the pile driving guide pipe has a guide slope.
10. A piling mechanism for improving the stability of pile foundations in shallow sea areas according to claim 1, characterized in that: The bottom outer wall of the piling guide pipe is provided with several counterweights.