A static pressure pile sinking construction method suitable for steel casing based on a pile driving barge

Abstract

This invention belongs to the field of offshore pile driving technology, and particularly relates to a static pressure pile driving construction method based on a pile driving vessel and suitable for steel casings. The method includes: S1, assembling two sets of static pressure devices; S2, using two main hooks to lift the static pressure devices and placing them at the front end of the pile driving vessel; S3, retrieving the steel casing from the forward transport vessel, lifting it, and then driving it into the soil; S4, installing the pile cap; S5, using the two main hooks to hook the static pressure devices and placing them at both ends of the pile cap; S6, after pile driving, using the two main hooks to hook the corresponding static pressure devices and returning them to the front end of the pile driving vessel. Using these structures, this invention achieves a stable, safe, noise-free, and convenient static pressure pile driving construction method based on a pile driving vessel and suitable for steel casings.

Description

Technical Field

[0001] This invention belongs to the field of offshore pile driving technology, and particularly relates to a static pressure pile driving construction method based on a pile driving vessel suitable for steel casing. Background Technology

[0002] A piling vessel is a specialized engineering vessel used for piling operations on water. Its hull is typically a steel box-type structure, with a piling frame at the end of the deck, allowing it to tilt forward and backward to accommodate the driving of inclined piles. Piling vessels are widely used in bridge, dock, and water conservancy engineering construction, and other scenarios requiring piling operations on water. Pile driving refers to the process of lifting piles (such as steel pipe piles or concrete piles) from their storage location, moving them to a designated location, and then driving them into the seabed using the hammer of the piling vessel. During this process, the piling vessel records and controls the hammering force and frequency to ensure the pile sinks vertically and stably to the seabed to the predetermined depth.

[0003] The pile driving equipment used on existing piling vessels is typically an impact hammer, and its supporting equipment (such as pile caps and pile grippers) is often only suitable for impact pile driving. In marine areas with special requirements (such as noise control), impact pile driving is usually not feasible due to the high noise levels associated with its process. There is no precedent for using the static pressure method for driving steel pipe piles at sea. Summary of the Invention

[0004] The purpose of this invention is to provide a static pressure pile driving construction method based on a pile driving vessel suitable for steel casing, so as to solve the above-mentioned problems, achieve the goal of static pressure pile driving, and reduce noise.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] A static pressure pile driving construction method based on a pile driving vessel, applicable to steel casings, includes:

[0007] S1. Assemble the two sets of static pressure devices respectively;

[0008] S2. Use two main hooks to lift the static pressure device and connect the static pressure device to the front end of the piling vessel.

[0009] S3. Retrieve the steel casing from the transport ship ahead, lift it, and then place it into the ground.

[0010] S4. Install pile caps on the steel casing;

[0011] S5. Use the two main hooks to hook the static pressure device respectively, and connect the two static pressure devices to the pile cap;

[0012] S6. After the pile is driven, the two main hooks are used to hook the corresponding static pressure device and put it back at the front of the pile driving vessel.

[0013] Preferably, the static pressure device includes a converter, the converter includes a conversion plate, and both ends of the conversion plate are provided with a first through hole, a second through hole and a third through hole. A first steel wire rope passes through the inner side of the third through hole, a second steel wire rope passes through the inner side of the first through hole, and a third steel wire rope passes through the inner side of the second through hole.

[0014] The bottom end of the main hook is detachably connected to a connecting wire rope. The end of the first wire rope away from the converter is detachably connected to the connecting wire rope. The end of the third wire rope away from the converter is fixedly connected to a static pressure box.

[0015] Preferably, the static pressure box includes a static pressure box body, and a plurality of static pressure box lifting lugs are fixedly connected to the top of the static pressure box body, and the third steel wire rope is fixedly connected to the static pressure box lifting lugs.

[0016] Preferably, the pile cap includes a sleeve, a pressure-bearing beam is fixedly connected to the top of the sleeve, the pressure-bearing beam is perpendicular to the axis of the sleeve, and connecting columns are fixedly connected to the four corners of the bottom of the pressure-bearing beam, with the end of the connecting column away from the pressure-bearing beam being fixedly connected to the sleeve.

[0017] Preferably, step S1 includes:

[0018] S1.1 Connect the first wire rope, the second wire rope, and the third wire rope to the converter;

[0019] S1.2 Connect the third steel wire rope to the static pressure box.

[0020] Preferably, step S2 includes:

[0021] S2.1 Connect the connecting steel wire rope to the first steel wire rope, and use the main hook to hook up the first steel wire rope to raise the height of the static pressure box;

[0022] S2.2 After lifting, connect the second steel wire rope to the body of the piling vessel;

[0023] S2.3. Lower the height of the main hook and use the second wire rope to support the static pressure box.

[0024] Preferably, four pile-driving vessel lifting lugs are fixedly connected to the front end of the pile-driving vessel body, and the second steel wire rope is detachably connected to the pile-driving vessel lifting lugs.

[0025] Preferably, step S3 includes:

[0026] S3.1 The piling vessel body is moved to the side of the transport vessel, and the two main hooks are connected to the lifting lugs on both sides of the top of the steel casing inside the transport vessel in front. An auxiliary hook is connected to the lifting lug at the bottom of the steel casing to lift the steel casing to the designated position.

[0027] S3.2 The two main hooks rise and the auxiliary hooks descend, causing the steel casing to rotate to one side;

[0028] S3.3 After the steel casing is verticalized, remove the auxiliary hook at the bottom of the steel casing pile.

[0029] S3.4 Place the steel casing at the bottom of the water and remove the two main hooks.

[0030] Preferably, step S5 includes:

[0031] S5.1 Connect the connecting steel wire rope to the first steel wire rope, and use the main hook to pull up the first steel wire rope to raise the height of the static pressure box;

[0032] S5.2 After being lifted to a certain height, the second wire rope is removed from the lifting lug of the piling vessel;

[0033] S5.3. Lower the height of the main hook and connect the second wire rope to the four corners of the pressure beam;

[0034] S5.4 Loosen the main hook to transfer the force of the static pressure box to the sleeve, and disconnect the connecting wire rope from the first wire rope.

[0035] Preferably, step S6 includes:

[0036] S6.1 Connect the connecting wire rope to the first wire rope, and use the main hook to pull up the first wire rope to raise the height of the static pressure box;

[0037] S6.2 Disassemble the second wire rope and connect the second wire rope to the lifting lug of the piling vessel after lifting;

[0038] S6.3 Loosen the main hook to allow the static pressure box to be hung at the front end of the piling vessel.

[0039] Compared with the prior art, the present invention has the following advantages and technical effects:

[0040] This invention utilizes a static pressure device in conjunction with the continuous lifting and lowering of the main hook. By altering the support structure of the static pressure device through the connection method of the steel wire rope, it achieves stable static pressure on the steel casing. This method employs specific steps to achieve stable application of static pressure while also allowing for the rapid removal of the static pressure device after static pressure is applied and its return to the front of the piling vessel. This enables the static pressure device to move with the piling vessel, thus facilitating the rapid and stable static pressure application on multiple steel casings.

[0041] Utilizing these structures, this invention realizes a static pressure pile driving method that enables rapid, stable, and safe static pressure pile driving operations, avoids noise pollution caused by impacting the steel casing, is suitable for pile driving operations in certain sea areas, and is a stable, safe, noise-free, and convenient static pressure pile driving construction method based on a pile driving vessel suitable for steel casing. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A front view showing the working state of the present invention;

[0044] Figure 2 This is a right view showing the operation of a single static pressure chamber according to the present invention;

[0045] Figure 3 This is a right view showing the operation of the two static pressure chambers of the present invention;

[0046] Figure 4 Right view of a portion of the structure of the piling vessel;

[0047] Figure 5 A schematic diagram of the lifting lugs on a piling vessel;

[0048] Figure 6 This is a schematic diagram of the converter's structure;

[0049] Figure 7 This is a schematic diagram of the static pressure chamber.

[0050] Figure 8 This is a schematic diagram of the pile cap structure.

[0051] Reference numerals in the attached drawings: 1. Main hook; 2. First wire rope; 3. Second wire rope; 4. Third wire rope; 5. Converter; 6. Static pressure box; 7. Pile cap; 8. Steel casing; 9. Body of the piling vessel; 10. Lifting lug of the piling vessel; 11. Connecting wire rope; 501. Converter plate; 502. First perforation; 503. Second perforation; 504. Third perforation; 601. Static pressure box body; 602. Lifting lug of the static pressure box; 701. Sleeve; 702. Bearing beam; 703. Connecting column. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] Reference Figures 1 to 8 As shown, the present invention provides

[0055] A static pressure pile driving construction method based on a pile driving vessel, applicable to steel casings, includes:

[0056] S1. Assemble the two sets of static pressure devices respectively;

[0057] S2. Use the two main hooks 1 to lift the static pressure device respectively, and connect the static pressure device to the front end of the piling vessel body 9.

[0058] S3. Take the steel casing from the transport ship ahead, lift it up, and turn it over to put it into the soil;

[0059] S4. Install pile cap 7 on steel casing 8;

[0060] S5. Use the two main hooks 1 to hook the static pressure device respectively, and connect the two static pressure devices to the pile cap 7;

[0061] S6. After the pile is driven, use the two main hooks 1 to hook the corresponding static pressure device and put it back into the front of the pile driving vessel 9.

[0062] This invention utilizes a static pressure device in conjunction with the continuous lifting and lowering of the main hook 1. By changing the support structure of the static pressure device through the connection method of the steel wire rope, a stable static pressure is applied to the steel casing 8. This method employs certain steps to achieve stable application of static pressure while also allowing the static pressure device to be quickly removed after static pressure is applied and placed back at the front end of the piling vessel 9. This enables the static pressure device to move with the piling vessel 9, thereby allowing for rapid and stable static pressure application to multiple steel casings 8.

[0063] Utilizing these structures, this invention realizes a static pressure pile driving method that enables rapid, stable, and safe static pressure pile driving operations, avoids noise pollution caused by impacting the steel casing 8, is suitable for pile driving operations in certain sea areas, and is a stable, safe, noise-free, and convenient static pressure pile driving construction method based on a pile driving vessel suitable for steel casings.

[0064] The scheme is further optimized. The static pressure device includes a converter 5. The converter 5 includes a conversion plate 501. Both ends of the conversion plate 501 are provided with a first through hole 502, a second through hole 503, and a third through hole 504. A first steel wire rope 2 passes through the inside of the third through hole 504, a second steel wire rope 3 passes through the inside of the first through hole 502, and a third steel wire rope 4 passes through the inside of the second through hole 503.

[0065] The bottom of the main hook 1 is detachably connected to a connecting wire rope 11. The end of the first wire rope 2 away from the converter 5 is detachably connected to the connecting wire rope 11. The end of the third wire rope 4 away from the converter 5 is fixedly connected to a static pressure box 6.

[0066] The converter 5 is set up to connect the first wire rope 2, the second wire rope 3, and the third wire rope 4, and to serve as a connection point to provide a stable connection.

[0067] The scheme is further optimized. The static pressure box 6 includes a static pressure box body 601. Several static pressure box lifting lugs 602 are fixedly connected to the top of the static pressure box body 601. The third steel wire rope 4 is fixedly connected to the static pressure box lifting lugs 602.

[0068] A counterweight is placed inside the static pressure chamber 601 to achieve static pressure on the steel casing 8.

[0069] The scheme is further optimized. The pile cap 7 includes a sleeve 701. A bearing beam 702 is fixedly connected to the top of the sleeve 701. The bearing beam 702 is perpendicular to the axis of the sleeve 701. Connecting columns 703 are fixedly connected to the four corners of the bottom of the bearing beam 702. The end of the connecting column 703 away from the bearing beam 702 is fixedly connected to the sleeve 701.

[0070] The bearing beam 702 can better enable the sleeve 701 to bear the gravity from the static pressure box 601, thereby achieving static pressure pile driving more stably.

[0071] Further optimization of the solution, step S1 includes:

[0072] S1.1 Connect the first wire rope 2, the second wire rope 3, and the third wire rope 4 to the converter 5;

[0073] S1.2 Connect the third steel wire rope 4 to the static pressure box 6.

[0074] Further optimization of the solution, step S2 includes:

[0075] S2.1 Connect the connecting wire rope 11 to the first wire rope 2, and use the main hook 1 to hook the first wire rope 2 to raise the height of the static pressure box 6;

[0076] S2.2 After lifting, connect the second steel wire rope 3 to the body 9 of the piling vessel;

[0077] S2.3. Lower the height of the main hook 1 and use the second wire rope 3 to support the static pressure box 6.

[0078] The scheme has been further optimized. Four pile driving vessel lifting lugs 10 are fixedly connected to the front end of the pile driving vessel body 9, and the second steel wire rope 3 is detachably connected to the pile driving vessel lifting lugs 10.

[0079] Further optimization of the plan, step S3 includes:

[0080] S3.1 The piling vessel body 9 is moved to the side of the transport vessel, and the two main hooks 1 are connected to the lifting lugs on both sides of the pile top of the steel casing 8 in the front transport vessel. An auxiliary hook is connected to the lifting lug at the pile bottom of the steel casing 8 to lift the steel casing 8 to the designated position.

[0081] S3.2, the two main hooks 1 rise and the auxiliary hooks descend, causing the steel casing 8 to rotate to one side;

[0082] S3.3 After verticalizing the steel casing 8, remove the auxiliary hook at the bottom of the steel casing 8 pile.

[0083] S3.4 Place the steel casing 8 at the bottom of the water and remove the two main hooks 1.

[0084] Further optimization of the solution, step S5 includes:

[0085] S5.1 Connect the connecting wire rope 11 to the first wire rope 2, and use the main hook 1 to pull up the first wire rope 2 to raise the height of the static pressure box 6;

[0086] S5.2 After being lifted to a certain height, the second wire rope 3 is removed from the lifting lug 10 of the piling vessel;

[0087] S5.3. Lower the height of the main hook 1 and connect the second wire rope 3 to the four corners of the pressure beam 702;

[0088] S5.4 Loosen the main hook 1, transfer the force of the static pressure box 6 to the sleeve 701, and disconnect the connecting wire rope 11 from the first wire rope 2.

[0089] Further optimization of the solution, step S6 includes:

[0090] S6.1 Connect the connecting wire rope 11 and the first wire rope 2, and use the main hook 1 to pull up the first wire rope 2 to raise the height of the static pressure box 6;

[0091] S6.2 Disassemble the second wire rope 3 and connect the second wire rope 3 to the pile driving vessel lifting lug 10 after lifting;

[0092] S6.3 Loosen the main hook 1, so that the static pressure box 6 is hung on the front end of the piling vessel body 9.

[0093] Preferably, there are four lifting lugs 602 for the static pressure box, which are respectively connected to the ends of two hanging third steel wire ropes 4. This connection method can ensure that the static pressure box body 601 will not deflect and can maintain stable vertical translation.

[0094] In this invention, two main hooks 1 are used to lift two static pressure boxes 6 respectively, which are hung at both ends of the pressure beam 702, thereby achieving stable static pressure and ensuring that the force sinks in the vertical direction.

[0095] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0096] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A method for static pile pressing construction for steel casing based on a pile driver, characterized in that, Includes the following steps: S1. Assemble the two sets of static pressure devices respectively; S2. Use two main hooks (1) to lift the static pressure device respectively, and connect the static pressure device to the front end of the piling vessel body (9); S3. Take the steel casing (8) from the transport ship in front, lift it, and turn it over to put it into the soil; S4. Install pile caps (7) on the steel casing (8); S5. Use the two main hooks (1) to hook the static pressure device respectively, and connect the two static pressure devices to the pile cap (7); S6. After the pile is driven, the two main hooks (1) are used to hook the corresponding static pressure device and put it back into the front end of the pile driving vessel body (9). The static pressure device includes a converter (5), the converter (5) includes a conversion plate (501), and the conversion plate (501) has a first through hole (502), a second through hole (503) and a third through hole (504) at both ends. A first steel wire rope (2) passes through the inner side of the third through hole (504), a second steel wire rope (3) passes through the inner side of the first through hole (502), and a third steel wire rope (4) passes through the inner side of the second through hole (503). The bottom end of the main hook (1) is detachably connected to a connecting wire rope (11), the end of the first wire rope (2) away from the converter (5) is detachably connected to the connecting wire rope (11), and the end of the third wire rope (4) away from the converter (5) is fixedly connected to a static pressure box (6). The static pressure box (6) includes a static pressure box body (601), and a plurality of static pressure box lifting lugs (602) are fixedly connected to the top of the static pressure box body (601). The third steel wire rope (4) is fixedly connected to the static pressure box lifting lugs (602). The pile cap (7) includes a sleeve (701), a bearing beam (702) is fixedly connected to the top of the sleeve (701), the bearing beam (702) is perpendicular to the axis of the sleeve (701), and connecting columns (703) are fixedly connected to the four corners of the bottom of the bearing beam (702), and the end of the connecting column (703) away from the bearing beam (702) is fixedly connected to the sleeve (701); Step S1 includes: S1.1 Connect the first wire rope (2), the second wire rope (3), and the third wire rope (4) to the converter (5); S1.2 Connect the third steel wire rope (4) to the static pressure box (6); Step S2 includes: S2.1 Connect the connecting wire rope (11) to the first wire rope (2), and use the main hook (1) to hook up the first wire rope (2) to raise the height of the static pressure box (6); S2.2 After lifting, connect the second steel wire rope (3) to the piling vessel body (9); S2.

3. Lower the height of the main hook (1) and use the second wire rope (3) to support the static pressure box (6).

2. A static pressure pile sinking construction method for a steel casing based on a pile driver barge according to claim 1, characterized in that, The front end of the piling vessel body (9) is fixedly connected to four piling vessel lifting lugs (10), and the second steel wire rope (3) is detachably connected to the piling vessel lifting lugs (10).

3. The static pressure pile driving method for steel casing based on a pile driving vessel according to claim 1, characterized in that, Step S3 includes: S3.1 The piling vessel body (9) is moved to the side of the transport vessel, and the two main hooks (1) are connected to the lifting lugs on both sides of the pile top of the steel casing (8) in the front of the transport vessel. An auxiliary hook is connected to the lifting lug at the pile bottom of the steel casing (8) to lift the steel casing (8) to the designated position. S3.2, the two main hooks (1) rise and the auxiliary hooks descend, causing the steel casing (8) to rotate to one side; S3.3 After the steel casing (8) is verticalized, remove the auxiliary hook at the bottom of the steel casing (8); S3.4 Place the steel casing (8) at the bottom of the water and remove the two main hooks (1).

4. The static pressure pile driving method for steel casing based on a pile driving vessel according to claim 3, characterized in that, Step S5 includes: S5.1 Connect the connecting wire rope (11) to the first wire rope (2), and use the main hook (1) to pull up the first wire rope (2) to raise the height of the static pressure box (6); S5.2 After being lifted to a certain height, the second wire rope (3) is removed from the lifting lug (10) of the piling vessel; S5.3, Lower the height of the main hook (1) and connect the second wire rope (3) to the four corners of the pressure beam (702); S5.4 Loosen the main hook (1), transfer the force of the static pressure box (6) to the sleeve (701), and disconnect the connecting wire rope (11) from the first wire rope (2).

5. The static pressure pile driving method for steel casing based on a pile driving vessel according to claim 3, characterized in that, Step S6 includes: S6.1 Connect the connecting wire rope (11) to the first wire rope (2), and use the main hook (1) to pull up the first wire rope (2) to raise the height of the static pressure box (6); S6.2 Disassemble the second wire rope (3) and connect the second wire rope (3) to the pile driving vessel lifting lug (10) after lifting; S6.3 Loosen the main hook (1) so that the static pressure box (6) is hung on the front end of the piling vessel body (9).

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