A large-scale offshore precast pile positioning tool and its application method

Abstract

This invention provides a large-scale offshore precast pile positioning fixture and its usage method. The precast pile positioning fixture includes a positioning pile, a pile driving positioning fixture, and a layout fixture. The pile driving positioning fixture is rectangular, and adjacent sides are connected by corresponding layout fixtures, which in turn are connected to their corresponding positioning piles. In this invention, the simple layout fixture determines the positions of the two sides of the pile driving positioning fixture. Because the pile driving positioning fixture itself is rectangular and reinforced with reinforcing rods, its strength and stability are ensured. Thus, by positioning two adjacent sides of the rectangular frame with two positioning fixtures, the pile driving positioning fixture can be quickly positioned. In this invention, the pile gripper can be integrated or separate. Separate positioning rings can be opened and locked using spring locks, allowing for easy disassembly and extraction of the pipe pile.

Description

Technical Field

[0001] This invention belongs to the field of piling vessels, and specifically relates to a large-scale offshore precast pile positioning tool and its usage method. Background Technology

[0002] Traditional offshore piling positioning involves setting up theodolites or total stations on shore or on fixed foundations, selecting reference points, and then controlling the positioning remotely. The drawback of this method is that the distance between the surveyors and the operators on the piling vessel gradually increases as construction progresses. Eventually, control accuracy and real-time communication efficiency significantly decrease. Traditional theodolite and total station positioning requires surveyors to perform a series of calculations based on measurement data to determine the current pile position. This is labor-intensive for surveyors, and because the piling vessel is constantly moving, the calculated pile position often differs from the actual position, leading to repeated forward, backward, left, and right movements of the piling vessel. Positioning accuracy is also affected by the workers' skill level and mastery of the instruments, resulting in significant individual differences and making it difficult to achieve a uniform error standard. For the reasons mentioned above, traditional piling positioning is inefficient. When the area to be piled is too far from the shore, such as tens of kilometers away, the traditional method is no longer applicable. The only solution is to reselect the benchmark or set up a working platform to transfer the coordinates, which will greatly reduce the accuracy of construction, affect the efficiency of construction, and increase the cost of the project.

[0003] For example, CN202021164206.5 discloses a piling vessel for offshore wind power piling, comprising a hull, a piling clamp, and a drive device. The front end of the hull has a notch. The piling clamp includes a base, a clamping ring, a bracket, and a drive device, with the base mounted on the notch. The positioning device includes a positioning support and positioning piles arranged in a one-to-one correspondence. The positioning support is spaced apart on the upper surface of the notch. The positioning piles are spaced apart on the base, with the bottom end of each positioning pile penetrating the base and extending downwards beyond the bottom surface of the hull, and the top end of each positioning pile extending vertically upwards. However, this piling vessel has a long positioning time, low efficiency, and low positioning efficiency of the piling clamp. Summary of the Invention

[0004] To overcome the limitations of existing piling methods that cannot achieve rapid and accurate positioning, and cannot make fine adjustments when the pile angle deviates, this invention provides a large-scale offshore precast pile positioning fixture and its usage method. In this invention, the positions of two layout fixtures of different sizes and a floating box are used to determine the specific location of the piling positioning fixture, enabling rapid and accurate positioning of the pipe pile.

[0005] The technical solution adopted in this invention is as follows:

[0006] A large-scale marine precast pile positioning fixture includes a positioning pile, a pile driving positioning fixture, and a layout fixture. The pile driving positioning fixture is in the shape of a rectangular frame. The two adjacent sides of the pile driving positioning fixture are connected by corresponding layout fixtures, and the layout fixture is connected to its corresponding positioning pile.

[0007] The piling positioning fixture includes a guide frame and a pile gripper; the guide frame includes a horizontal bar and multiple vertical bars, the multiple vertical bars are arranged in parallel, and the upper and lower ends of the multiple vertical bars are fixedly connected to form a frame by a horizontal bar; each vertical bar is equipped with a pile gripper at both ends; multiple reinforcing bars are provided in the frame formed by the horizontal bar and the vertical bars.

[0008] The vertical rod comprises multiple round rods, with adjacent round rods connected by positioning rings; the horizontal rod comprises multiple round tubes of varying lengths, with adjacent round tubes connected by positioning rings.

[0009] The pile gripper is equipped with a guide ring at its upper end, and the guide ring is flared in shape, with the upper part being larger than the lower part.

[0010] The pile gripper is a split sleeve, comprising two semi-circular clips. One side of the two semi-circular clips is connected by a rotating shaft, and the other side is connected by a spring lock.

[0011] The layout fixture includes layout fixture one and layout fixture two. Layout fixture one and layout fixture two have the same structure, are in a tree-like shape, but have different dimensions. Layout fixture one includes a horizontal section and three vertical sections. Two vertical sections are provided at each end of the horizontal section, and a third vertical section is provided in the middle of the horizontal section. The third vertical section and the other two vertical sections are located on different sides of the horizontal section, and the horizontal section and the three vertical sections are located in the same plane. Each of the three vertical sections is equipped with a pile gripper at its end.

[0012] The crossbar is equipped with strong lifting lugs near both ends.

[0013] The hull includes a pontoon and a barge. The two ends of the pontoon are connected to the corresponding barges. The piling and positioning fixture is located on one side of the pontoon. A piling machine is installed on the pontoon. A radar mast and pipe piles are installed on the barge.

[0014] A method for using a large-scale offshore precast pile positioning tool, the specific steps are as follows: Step 1, moor the pontoon and barge to the required position;

[0015] Step 2: Select and determine the layout fixture based on the position of the positioning rod on one side of the pontoon, and then connect and fix the piling positioning fixture to the corresponding layout fixture.

[0016] Step 3: After the piling positioning fixture is fixed, the pipe piles on the barge are driven into the pile gripper of the piling positioning fixture by the piling machine.

[0017] Step four: After the piling is completed, hoist out the piling positioning fixture and the layout fixture. Use the pipe piles driven in step three as the positioning foundation piles for the next step. Then, fix the two layout fixtures on the positioning foundation piles again. Then, connect and fix the piling positioning fixtures to the corresponding layout fixtures again to determine the new pipe pile driving point and carry out piling.

[0018] The beneficial effects of this invention are as follows:

[0019] In this invention, a simple layout fixture is used to determine the positions of the two sides of the piling positioning fixture. Once determined, the piling positioning fixture itself is rectangular, and reinforcing rods are added inside the frame to ensure its strength and stability. Thus, by positioning two adjacent sides of the rectangular frame with two positioning fixtures, the piling positioning fixture can be quickly positioned.

[0020] In this invention, the pile gripper can be integrated or split. The split positioning ring can be opened and locked by a spring lock, and it is detachable, which facilitates the insertion and removal of the pipe pile.

[0021] In this invention, the guide frame includes horizontal and vertical bars, forming an overall frame structure. Reinforcing bars are added within the frame to ensure the overall stability of the guide frame. The guide frame in this invention is detachable and easy to assemble.

[0022] The following will provide further explanation in conjunction with the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 A schematic diagram of the piling positioning fixture structure.

[0025] Figure 3 This is a schematic diagram of the pile gripper structure.

[0026] Figure 4 This is a schematic diagram of the spring lock structure.

[0027] Figure 5 This is a schematic diagram of the frame.

[0028] Figure 6 This is a schematic diagram of a piling frame structure.

[0029] Figure 7 This is a structural diagram of a high-strength lifting lug.

[0030] In the figure, the attached labels are: 1. Hull; 2. Piling and positioning fixture; 3. Piling machine; 4. Pipe pile; 5. Winch; 6. Guide frame; 7. Pile gripper; 8. Float; 9. Barge; 10. Layout fixture one; 11. Layout fixture two; 12. Support component; 13. Positioning pile.

[0031] 301. Base; 302. Hydraulic cylinder; 303. Formwork frame; 304. Piling frame;

[0032] 601. Horizontal bar; 602. Vertical bar; 603. Reinforcing bar;

[0033] 701. Rotary shaft; 702. Spring lock. Detailed Implementation

[0034] Example 1:

[0035] To overcome the problems of existing piling methods that cannot achieve rapid and accurate positioning and cannot make fine adjustments when the pile angle deviates, this invention provides... Figure 1-7 The invention illustrates a large-scale offshore precast pile positioning fixture and its application method. In this invention, the specific position of the pile driving positioning fixture is determined by two layout fixtures of different sizes and the position of the pontoon. This allows for rapid and accurate positioning of the pipe piles.

[0036] A large-scale marine precast pile positioning fixture includes a positioning pile 13, a pile driving positioning fixture 2 and a layout fixture. The pile driving positioning fixture 2 is in the shape of a rectangular frame. The two adjacent sides of the pile driving positioning fixture 2 are connected by corresponding layout fixtures, and the layout fixture is connected to its corresponding positioning pile 13.

[0037] like Figure 1 As shown, the present invention uses two layout fixtures to fix the position of the piling positioning fixture 2, and one piling positioning fixture 2 can drive six pipe piles 4. The piling positioning fixture 2 provided in this invention can perform piling quickly and effectively.

[0038] Example 2:

[0039] Based on Embodiment 1, in this embodiment, preferably, the piling positioning fixture 2 includes a guide frame 6 and a pile gripper 7; the guide frame 6 includes a horizontal bar 601 and multiple vertical bars 602, the multiple vertical bars 602 are arranged in parallel, and the upper and lower ends of the multiple vertical bars 602 are fixedly connected to form a frame by a horizontal bar 601; each vertical bar 602 is provided with a pile gripper 7 at both ends; multiple reinforcing bars 603 are provided in the frame formed by the horizontal bar 601 and the vertical bars 602.

[0040] Preferably, the vertical rod 602 comprises multiple round rods, with adjacent round rods connected by a positioning ring 604; the horizontal rod 601 comprises multiple round tubes of varying lengths, with adjacent round tubes connected by a positioning ring 604.

[0041] like Figure 2 As shown, the guide frame 6 in this invention includes two horizontal bars 601 and three vertical bars 602. Each end of the three vertical bars 602 has a certain length between it and the corresponding horizontal bar 601. The length is set according to requirements to ensure that the horizontal bars 601 do not interfere with the construction operation of the pile grippers 7 installed at both ends of the vertical bars 602. In this invention, the guide frame 6 is entirely detachable and easy to assemble. The reinforcing rod 603 ensures the overall stability of the guide frame 6, thereby improving positioning performance.

[0042] Preferably, the pile driver 7 has a guide ring at its upper end, and the guide ring is flared, with the upper part being larger than the lower part.

[0043] In this invention, when the pile gripper 7 is an integral type, it is a cylinder. Preferably, a flared guide opening can be added to the upper end of the cylinder, so that the pipe pile 4 can enter the pile gripper 7 better during pile driving, thereby accurately driving the pile.

[0044] Preferably, the pile gripper 7 is a split sleeve, comprising two semi-circular clips, one side of which is connected by a rotating shaft 701, and the other side is connected by a spring lock 702.

[0045] like Figure 3 and Figure 4 As shown, the pile gripper 7 is a split type, with two semi-cylindrical pieces interlocking to form a cylindrical shape. The two semi-cylindrical pieces can rotate along the pivot 701, while the other side is opened and locked by a spring lock 702. During use, the spring lock 702 is locked, and when the pile driver 3 is driving piles, the pipe pile 4 passes through the center of the split sleeve for positioning, driving, or unloading operations. However, when unloading piles or performing other pile extraction operations, some piles may have slight deviations and cannot be directly pulled out in one step. When the pipe pile 4 is difficult to pull out inside the pile gripper 7, the spring lock 702 can be opened to pull out the pipe pile 4, thus avoiding the problem of not being able to pull out the pipe pile 4 and causing subsequent construction to be ineffective. The split sleeve provided by this invention can effectively avoid these problems and will not affect subsequent construction. In this invention, the split structure of the pile gripper 7 allows for fine-tuning of the pipe pile 4 if its positioning is not accurate enough, ensuring that the pipe pile 4 can be driven in quickly and accurately.

[0046] Preferably, the layout fixture includes layout fixture one 10 and layout fixture two 11. Layout fixture one 10 and layout fixture two 11 have the same structure, are in a tree-like shape, but have different dimensions. Layout fixture one 10 includes a horizontal section and three vertical sections. Two vertical sections are provided at each end of the horizontal section, and a third vertical section is provided in the middle of the horizontal section. The third vertical section and the other two vertical sections are located on different sides of the horizontal section, and the horizontal section and the three vertical sections are located in the same plane. Each of the three vertical sections is equipped with a pile gripper 7 at its end.

[0047] In this invention, when the pile gripper 7 on the vertical section of the layout fixture is positioning the pile positioning fixture 2, the pile gripper 7 on the vertical section of the layout fixture is connected to the corresponding positioning ring on the pile positioning fixture 2 to ensure the connection strength, thereby accurately positioning the position of the pile positioning fixture 2.

[0048] Preferably, the crossbar 601 is provided with strong lifting lugs 8 near both ends.

[0049] In this invention, the following is employed: Figure 7 The powerful lifting lug 8 shown is installed on the crossbar 601 and can be used for lifting to ensure the lifting effect.

[0050] Preferably, the hull 1 includes a buoy 8 and a barge 9. The two ends of the buoy 8 are respectively connected to the corresponding barge 9. The piling and positioning fixture 2 is located on one side of the buoy 8. The buoy 8 is equipped with a piling machine 3. The barge 9 is equipped with a radar mast and pipe piles 4.

[0051] In this invention, one barge 9 corresponds to one pile driver 3. Barges 9 are located on both sides of the pontoon 8, and two pile drivers 3 are installed on the pontoon 8. Pipe piles 4 stored on the barges 9 are placed in layers, with adjacent layers supported by support members 12. The support members have staggered grooves at the top and bottom, and the pipe piles 4 are located within these grooves. The barges 9 are surrounded by railings, and lifebuoys are installed on the railings, fixed to the railings by lifebuoy brackets. The upper part of the pontoon 8 is also surrounded by railings.

[0052] In this invention, the pile driver 3 includes a base 301, a hydraulic cylinder 302, a frame 303, a pile driving frame 304, and a cable lock. The frame 303 has the following structure: Figure 5 As shown, the 304 piling frame structure is as follows: Figure 6 As shown. The base 301 is set on the platform of the pontoon 8, the hydraulic cylinder 302 is set on the base 301, the cylinder rod end of the hydraulic cylinder 302 is set on the piling frame 304, the upper end of the piling frame 304 is connected to the base 301 by two cable locks, one end of the frame 303 is set on the base 301, and the other end is set on the upper part of the piling frame 304.

[0053] The base 301 is existing technology and will not be described further in this invention.

[0054] A method for using a large-scale offshore precast pile positioning fixture, the specific steps are as follows: Step 1, moor the pontoon 8 and the barge 9 to the required positions;

[0055] Step 2: Select and determine the layout fixture based on the position of the positioning rod 13 on one side of the pontoon 8, and then connect and fix the piling positioning fixture 2 to the corresponding layout fixture.

[0056] Step 3: After the piling positioning fixture 2 is fixed, the pipe piles 4 on the barge 9 are driven into the pile holder 7 of the piling positioning fixture 2 by the piling machine 3.

[0057] Step 4: After the piling is completed, hoist out the piling positioning fixture 2 and the layout fixture. Use the pipe piles driven in Step 3 as the positioning foundation piles for the next step. Then, fix the two layout fixtures on the positioning foundation piles again. Then, connect and fix the piling positioning fixture 2 to the corresponding layout fixtures again to determine the new pipe pile entry point and carry out piling.

[0058] Preferably, winches 5 are provided at all four corners of the hull 1. The winches 5 have two functions: anchoring the ship 5 and moving the ship. This is a mature existing technology and will not be further described in this invention.

[0059] In this invention, a living and operating cabin is arranged on the ship. The living and operating cabin includes at least the necessary cabins such as a living cabin, a bridge, and an office room. The overall living and operating cabin is designed as a shipboard structure, with two levels in a box shape. The second level can be accessed via stairs.

[0060] The examples above are merely illustrative of the present invention and do not constitute a limitation on the scope of protection of the present invention. All designs that are the same as or similar to the present invention fall within the scope of protection of the present invention. In the present invention...

[0061] The device structures and method steps not described in detail are all prior art and will not be further described in this invention.

Claims

1. A large-scale offshore precast pile positioning fixture, comprising positioning piles (13), characterized in that: The equipment includes a pile driving positioning fixture (2) and a layout fixture. The pile driving positioning fixture (2) is in the shape of a rectangular frame. The two adjacent sides of the pile driving positioning fixture (2) are connected by corresponding layout fixtures. The layout fixture is connected to its corresponding positioning pile (13). The pile driving positioning fixture (2) includes a guide frame (6) and a pile gripper (7). The guide frame (6) includes a horizontal bar (601) and multiple vertical bars (602). The multiple vertical bars (602) are arranged in parallel. The upper and lower ends of the multiple vertical bars (602) are fixedly connected to form a frame by a horizontal bar (601). Each vertical bar (602) is provided with a pile gripper (7) at both ends. Multiple reinforcing bars (603) are provided in the frame formed by the horizontal bar (601) and the vertical bar (602). The vertical bars (601) and the vertical bar (602) are provided with multiple reinforcing bars (603). 2) Includes multiple round rods, with adjacent round rods connected by positioning rings (604); the crossbar (601) includes multiple round tubes of varying lengths, with adjacent round tubes connected by positioning rings (604); the layout fixture includes layout fixture one (10) and layout fixture two (11), the layout fixture one (10) and layout fixture two (11) have the same structure, are in a tree-like shape, but have different dimensions; the layout fixture one (10) includes a horizontal section and three vertical sections, with two vertical sections at each end of the horizontal section and a third vertical section in the middle of the horizontal section, the third vertical section and the other two vertical sections are located on different sides of the horizontal section, and the horizontal section and the three vertical sections are located in the same plane; the ends of the three vertical sections are all equipped with pile grippers (7).

2. The large-scale marine precast pile positioning fixture according to claim 1, characterized in that: The pile gripper (7) is provided with a guide ring at the upper end, and the guide ring is a funnel shape with a larger upper part and a smaller lower part.

3. The large-scale marine precast pile positioning fixture according to claim 1, characterized in that: The pile gripper (7) is a split sleeve, including two semi-circular cards. One side of the two semi-circular cards is connected by a rotating shaft (701), and the other side is connected by a spring lock (702).

4. The large-scale marine precast pile positioning fixture according to claim 1, characterized in that: The crossbar (601) is provided with strong lifting lugs near both ends.

5. A large-scale offshore precast pile positioning fixture according to claim 1, characterized in that: It also includes a pontoon (8) and a barge (9). The two ends of the pontoon (8) are connected to the corresponding barge (9). The piling positioning fixture (2) is located on one side of the pontoon (8). The pontoon (8) is equipped with a piling machine (3). The barge (9) is equipped with a radar mast and a pipe pile (4).

6. The method of using a large-scale marine precast pile positioning fixture according to any one of claims 1-5, characterized in that: The specific steps are as follows: Step 1: Position the pontoon (8) and barge (9) as required. Step 2: Select and determine the layout tooling according to the position of the positioning pile (13) on one side of the pontoon (8), and then connect and fix the pile positioning tooling (2) to the corresponding layout tooling. Step 3: After the piling positioning fixture (2) is fixed, the pipe piles (4) on the barge (9) are driven into the pile holder (7) of the piling positioning fixture (2) by the piling machine (3); Step 4: After the piling is completed, hoist out the piling positioning fixture (2) and the layout fixture. Use the pipe piles that were driven in Step 3 as the positioning foundation piles for the next step. Then fix the two layout fixtures on the positioning foundation piles again. Then connect and fix the piling positioning fixture (2) to the corresponding layout fixtures again to determine the new pipe pile entry point and carry out piling.

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