An integrated pile driving system and method based on a flip-over vibratory hammer

Abstract

The application discloses an integrated pile inserting and driving system and method based on a turnover vibration hammer, which comprises a floating crane, an underwater vibration hammer, a transport barge, a jacket, a steel pile, a pile clamping device, a monitoring assembly, a skirt pile sleeve and a controller. The upper end of the underwater vibration hammer is connected with the floating crane, the lower end of the underwater vibration hammer is provided with a clamping portion, the clamping portion is used for clamping the steel pile, the underwater vibration hammer is configured to overturn the steel pile and fix the steel pile. The transport barge is used for horizontally transporting the steel pile to the lower end of the underwater vibration hammer. The jacket is fixed on the seabed, and the skirt pile sleeve is fixedly arranged at the upper end of the jacket. The pile clamping device is installed at the upper end of the skirt pile sleeve and is used for locking the steel pile inserted into the skirt pile sleeve. The monitoring assembly is integrated on the underwater vibration hammer, the monitoring assembly is in communication connection with the input end of the controller, and the output end of the controller is in communication connection with the underwater vibration hammer, so that the installation stability of the jacket is improved.

Description

Technical Field

[0001] This invention belongs to the field of marine construction technology, and in particular relates to an integrated pile driving system and method based on a flip-type vibratory hammer. Background Technology

[0002] In deepwater oil and gas field development, the stability of the jacket foundation depends on the precise driving of multiple large-diameter steel piles into the seabed. Traditional pile driving techniques require the sequential use of hydraulic pile lifters (for turning and hoisting), small impact hammers (for initial driving), and large impact hammers (for final driving). Frequent equipment switching results in a main pile installation cycle of up to 7 days, heavily reliant on favorable weather windows. Furthermore, the initial driving stage is prone to "pile slippage," where the steel pile suddenly and rapidly sinks in soft soil layers, causing the pile hammer to detach and posing an impact risk to the floating crane boom and slings. Additionally, the steel pile transport barges can only leave the site after all pile positions have been driven, resulting in long downtime and high costs. Before all steel piles are driven, the jacket foundation relies solely on its own weight for stability, exhibiting weak resistance to wind and waves and posing structural safety hazards.

[0003] Therefore, there is an urgent need to design an integrated pile driving system and method based on a flip-type vibratory hammer to solve the problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated pile driving system and method based on a flip-type vibratory hammer, which improves the installation stability of the guide frame.

[0005] To achieve the above objectives, the specific technical solution of the integrated pile driving system and method based on a flipping vibratory hammer of the present invention is as follows: An integrated pile driving system based on a flip-type vibratory hammer includes: a floating crane vessel, an underwater vibratory hammer, a transport barge, a jacket frame, steel piles, pile clamps, monitoring components, a skirted pile sleeve, and a controller; The upper end of the underwater vibratory hammer is connected to the floating crane, and the lower end of the underwater vibratory hammer is provided with a clamping part for clamping the steel pile. The underwater vibratory hammer is configured to flip the steel pile and fix it. The transport barge is used to transport the steel pile horizontally to the lower end of the underwater vibratory hammer; The jacket is fixed to the seabed, and the skirt pile sleeve is fixedly installed at the upper end of the jacket; The pile clamp is installed at the upper end of the skirt pile sleeve and is used to lock the steel pile inserted into the skirt pile sleeve; The underwater vibratory hammer is equipped with a monitoring component, which is communicatively connected to the input terminal of the controller, and the output terminal of the controller is communicatively connected to the underwater vibratory hammer.

[0006] Furthermore, the monitoring component includes a water pressure sensor, an attitude sensor, and a data processing unit. The water pressure sensor is located on the outside of the clamping part and is used to measure the penetration depth of the steel pile into the mud. The attitude sensor is located on the inside of the clamping part and is used to measure the flip angle of the underwater vibratory hammer and the verticality of the steel pile. The data processing unit is located on the outside of the underwater vibratory hammer and is used to record the time taken for the steel pile to penetrate the mud. The water pressure sensor, the attitude sensor, and the data processing unit are all communicatively connected to the input terminal of the controller.

[0007] Furthermore, a protective cabin is provided on the outside of the underwater vibratory hammer, and the data processing unit is located inside the protective cabin.

[0008] Furthermore, a shock-absorbing assembly is provided between the protective cabin and the underwater vibratory hammer, the shock-absorbing assembly including a rubber shock-absorbing pad and a metal shock-absorbing spring.

[0009] An integrated pile driving method based on a flip-type vibratory hammer, employing the aforementioned integrated pile driving system based on a flip-type vibratory hammer, includes the following steps: S1. Use the clamping part of the underwater vibratory hammer to lift the steel piles that are placed horizontally on the transport barge and flip them to a vertical position; S2. The clamping part clamps the vertical steel pile and inserts the vertical steel pile into the skirt pile sleeve; S3. Start the underwater vibratory hammer to drive the vertical steel pile with high frequency vibration, so that the clamping part is connected to the vertical steel pile and sinks synchronously. S4. Repeat steps S1 to S3. After inserting and initially driving at least two steel piles, use a pile clamp to lock the steel piles so that the guide frame enters a structurally safe state. S5. In the locked state of step S4, continue to use the underwater vibratory hammer to complete the insertion and initial pile driving of the remaining steel piles; S6. Drive all steel piles to the final depth in the mud as designed.

[0010] Furthermore, in steps S2 and S3, construction data is collected in real time by a monitoring component integrated on the underwater vibratory hammer.

[0011] Furthermore, in step S3, the controller controls the pile driving parameters of the underwater vibratory hammer based on the mud penetration depth of the steel pile measured by the water pressure sensor.

[0012] Furthermore, in step S2, the controller automatically controls the underwater vibratory hammer to adjust the attitude of the steel pile or issues an alarm to prompt the operator to intervene when the verticality deviation of the steel pile exceeds a preset threshold, based on the tilting angle of the underwater vibratory hammer and the verticality of the steel pile measured by the attitude sensor.

[0013] Furthermore, in step S5, after the initial fixing of all steel piles is completed, the transport barge is instructed to leave the work site.

[0014] The integrated pile driving system and method based on a flipping vibratory hammer of the present invention has the following advantages: by organically integrating a floating crane, an underwater vibratory hammer with clamping and flipping functions, a transport barge, a jacket with a skirted pile sleeve and a pile clamp, steel piles, monitoring components and a controller, the entire process of steel piles from horizontal transportation, vertical flipping, precise insertion to initial locking is realized in an integrated manner; wherein the monitoring components collect construction data in real time and feed it back to the controller, and the controller then adjusts the action of the underwater vibratory hammer according to the signal to form a closed-loop control, thereby significantly reducing the number of equipment switching, shortening the offshore operation cycle, eliminating the risk of pile slippage, establishing the safety status of the jacket structure in advance, freeing up barge resources, and improving the pile driving accuracy and the level of construction intelligence. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the underwater vibratory hammer in the integrated pile driving system based on the flipping vibratory hammer of the present invention. Figure 2 This is a schematic diagram of the steel pile flipping of the integrated pile driving system based on a flipping vibratory hammer according to the present invention. Figure 3 This is a schematic diagram of the integrated pile driving system based on a flip-type vibratory hammer according to the present invention.

[0016] Explanation of markings in the diagram: 1. Floating crane vessel; 2. Underwater vibratory hammer; 21. Tilting drive unit; 3. Transport barge; 4. Jacket frame; 5. Steel pile; 6. Pile clamp; 7. Monitoring components; 8. Skirt pile sleeve; 9. Clamping part. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0018] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0019] The following is a reference to the appendix. Figure 1 To be continued Figure 3 This invention describes an integrated pile driving system and method based on a flip-type vibratory hammer.

[0020] like Figures 1 to 3 As shown, an integrated pile driving system based on a flip-type vibratory hammer includes: a floating crane 1, an underwater vibratory hammer 2, a transport barge 3, a jacket frame 4, steel piles 5, a pile clamp 6, a monitoring component 7, a skirted pile sleeve 8, and a controller. The upper end of the underwater vibratory hammer 2 is connected to the floating crane 1. Preferably, the upper end of the underwater vibratory hammer 2 is connected to the main hook of the floating crane 1 via a steel wire rope. The lower end of the underwater vibratory hammer 2 is provided with a clamping part 9. Preferably, the clamping part 9 is a hydraulic clamp that can firmly clamp the top of the steel pile 5. The clamping part 9 is used to clamp the steel pile 5. The underwater vibratory hammer 2 is configured to flip the steel pile 5 and fix it. Preferably, the underwater vibratory hammer 2 is provided with a flipping drive unit 21 inside. The flipping drive unit 21 drives the underwater vibratory hammer 2 to rotate 90°, thereby flipping the steel pile 5 from a horizontal posture to a vertical posture.

[0021] The transport barge 3 is used to horizontally transport the steel pile 5 to the lower end of the underwater vibratory hammer 2; Specifically, the transport barge 3 is moored close to the floating crane 1, and the steel pile 5 is placed horizontally on the deck to facilitate the underwater vibratory hammer 2 to clamp the steel pile 5.

[0022] The jacket 4 is fixed to the seabed, and the skirt pile sleeve 8 is fixedly installed at the upper end of the jacket 4; The pile clamp 6 is installed at the upper end of the skirt pile sleeve 8 and is used to lock the steel pile 5 inserted into the skirt pile sleeve 8. Specifically, the jacket 4 is fixed to the seabed, and multiple skirted pile sleeves 8 are provided at the four corners and edges of the top of the jacket 4 to guide the steel piles 5 into the soil. Each skirted pile sleeve 8 is equipped with a pile clamp 6 at its upper end. The pile clamp 6 is a hydraulic ring locking device that can hold and lock the steel pile 5 after it is inserted.

[0023] The underwater vibratory hammer 2 is equipped with a monitoring component 7, which is communicatively connected to the input terminal of the controller, and the output terminal of the controller is communicatively connected to the underwater vibratory hammer 2.

[0024] In this embodiment, by organically integrating the floating crane 1, the underwater vibratory hammer 2 with clamping and flipping functions, the transport barge 3, the jacket frame 4 with skirted pile sleeves 8 and pile clamps 6, the steel pile 5, the monitoring component 7, and the controller, the entire process of the steel pile 5 from horizontal transportation, vertical flipping, precise insertion to initial locking is realized. The monitoring component 7 collects construction data in real time and feeds it back to the controller, which then adjusts the action of the underwater vibratory hammer 2 according to the signal to form a closed-loop control. This significantly reduces the number of equipment switching times, shortens the offshore operation cycle, eliminates the risk of pile slippage, establishes the structural safety status of the jacket frame 4 in advance, releases barge resources, and improves the pile insertion accuracy and the level of construction intelligence.

[0025] Furthermore, the monitoring component 7 includes a water pressure sensor, an attitude sensor, and a data processing unit. The water pressure sensor is located on the outside of the clamping part 9 and is used to measure the mud penetration depth of the steel pile 5. The attitude sensor is located on the inside of the clamping part 9 and is used to measure the flip angle of the underwater vibratory hammer 2 and the verticality of the steel pile 5. The data processing unit is located on the outside of the underwater vibratory hammer 2 and is used to record the mud penetration depth time of the steel pile 5. The water pressure sensor, the attitude sensor, and the data processing unit are all communicatively connected to the input terminal of the controller.

[0026] Specifically, the data processing unit is connected to the water pressure sensor and the attitude sensor, and the data processing unit preprocesses the sensor signals of the water pressure sensor and the attitude sensor.

[0027] Specifically, a water pressure sensor is installed on the outside of the clamping part 9, which can sense the water depth in real time after the steel pile 5 is submerged, and the controller calculates the depth of the steel pile 5 in the mud accordingly. An attitude sensor is installed on the inside of the clamping part 9, which can detect the flip angle of the underwater vibratory hammer 2 and the verticality of the steel pile 5 clamped by the clamping part 9.

[0028] Furthermore, a protective cabin is provided on the outside of the underwater vibratory hammer 2, and the data processing unit is located inside the protective cabin.

[0029] Furthermore, a shock-absorbing assembly is provided between the protective chamber and the underwater vibratory hammer 2. The shock-absorbing assembly includes rubber shock-absorbing pads and metal shock-absorbing springs to absorb high-frequency vibrations. The core circuit board inside the protective chamber is integrally cast with potting compound to achieve waterproofing, vibration resistance, and heat dissipation.

[0030] The monitoring component 7 is connected to the controller via a high-pressure watertight cable. The controller is an industrial computer with built-in control algorithms. Its output is connected to the hydraulic and drive system of the underwater vibratory hammer 2, and it can automatically adjust parameters such as vibration frequency, clamping force, and tilting angle according to the monitoring data.

[0031] An integrated pile driving method based on a flip-type vibratory hammer, employing the aforementioned integrated pile driving system based on a flip-type vibratory hammer, includes the following steps: S1. Use the clamping part 9 of the underwater vibratory hammer 2 to lift the steel pile 5, which is placed horizontally on the transport barge 3, and flip it to a vertical position. S2. The clamping part 9 clamps the vertical steel pile 5 and inserts the vertical steel pile 5 into the skirt pile sleeve 8. S3. Start the underwater vibratory hammer 2 to perform high-frequency vibration pile driving on the vertical steel pile 5, so that the clamping part 9 remains connected to the vertical steel pile 5 and sinks synchronously. S4. Repeat steps S1 to S3. After inserting and initially driving at least two steel piles 5, use the pile clamp 6 to lock the steel piles 5 so that the guide frame 4 enters a structural safety state. S5. In the locked state of step S4, continue to use the underwater vibratory hammer 2 to complete the insertion and initial piling of the remaining steel piles 5; S6. Drive all steel piles 5 into the mud until the designed depth of penetration of the steel piles 5 into the mud is reached.

[0032] Furthermore, in steps S2 and S3, construction data is collected in real time by the monitoring component 7 integrated on the underwater vibratory hammer 2.

[0033] Furthermore, in step S3, the controller controls the pile driving parameters of the underwater vibratory hammer 2 based on the mud penetration depth of the steel pile 5 measured by the water pressure sensor.

[0034] Further, in step S2, the controller automatically controls the underwater vibratory hammer 2 to adjust the attitude of the steel pile 5 or issues an alarm to prompt the operator to intervene when the verticality deviation of the steel pile 5 exceeds a preset threshold, based on the tilt angle of the underwater vibratory hammer 2 and the verticality of the steel pile 5 measured by the attitude sensor.

[0035] Furthermore, in step S5, after the initial fixing of all steel piles 5 is completed, the transport barge 3 is instructed to leave the work site.

[0036] Specifically, in S1, the floating crane 1 lifts the underwater vibratory hammer 2 and moves it above the transport barge 3. The controller issues a command, and the underwater vibratory hammer 2 flips to a horizontal position, with the clamping part 9 aligned with the center of the horizontally placed steel pile 5 and clamped. Then it is lifted and flipped in the opposite direction, changing the steel pile 5 from a horizontal to a vertical position. During this process, the attitude sensor monitors the flipping angle in real time, and the controller ensures the center of gravity is stable. In S2, with the clamping part 9 still clamped, the vertical steel pile 5 is lowered and inserted into the skirt pile sleeve 8 of the guide frame 4. In the initial stage of entering the mud, the steel pile 5 sinks under its own weight. The attitude sensor continuously monitors the verticality. If the deviation exceeds 1% (preset threshold), the controller automatically issues a command to fine-tune the position of the floating crane or the attitude of the vibratory hammer. If the deviation is too large, the controller controls the vibratory hammer to pull out the steel pile 5 and re-insert it. In S3, when the steel pile 5 has entered the mud to a certain depth, the piling function of the underwater vibratory hammer 2 is activated, generating a high-frequency excitation force, causing the steel pile 5 and the clamping part 9 to vibrate and sink synchronously. During this process, the water pressure sensor measures the depth in real time, and the controller automatically adjusts the vibration frequency and amplitude according to the depth changes to match different soil layers. Simultaneously, the data processing unit records the time taken per meter of penetration and uploads it to the controller. Since the vibratory hammer always clamps the steel pile 5, the risk of pile slippage is fundamentally eliminated. S4: Repeat S1~S3 to sequentially complete the insertion and preliminary piling of the four main piles at the four corners of the jacket frame 4. At this point, the depth of the main piles into the mud exceeds the minimum standing strength standard required for large impact hammer operations. The controller issues a command, and the pile clamp 6 on the skirt pile sleeve 8 activates, firmly locking the four main piles. The four corners of the jacket frame 4 gain stable support, entering a structural safety state in advance, capable of withstanding sudden wind and waves. S5: In the locked state, continue using the same underwater vibratory hammer 2, following steps S1~S3 to complete the insertion and preliminary piling of the remaining auxiliary piles. After all steel piles 5 are initially fixed, the controller commands the transport barge 3 to unmoor and leave, eliminating the risk of dual-ship mooring. S6. After the barge leaves the site, replace it with a large hydraulic impact hammer (or retain the large impact hammer left after the barge's removal) to perform final piling on all steel piles 5 until the designed depth into the mud is reached. During the final piling process, the pile clamps 6 can be selectively released to avoid interference.

[0037] The controller incorporates a feedback algorithm. When the attitude sensor detects that the verticality deviation of the steel pile 5 exceeds the threshold, it not only issues an alarm but also automatically activates the lateral thrust unit of the underwater vibratory hammer 2 (such as a miniature hydraulic push rod built into the vibratory hammer) to apply lateral force to the top of the steel pile 5, actively correcting the deviation without pulling out the steel pile 5. This function is suitable for deep water and hard soil layers.

[0038] The data processing unit includes a storage module and a wireless communication module. All construction data (depth-time curves, verticality changes, vibration frequencies, etc.) are uploaded to the cloud in real time for remote expert consultation and subsequent bearing capacity analysis.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An integrated pile driving system based on a flip-over vibratory hammer, characterized in that, include: Floating crane, underwater vibratory hammer, transport barge, jacket foundation, steel pile, pile clamp, monitoring components, skirt pile sleeve and controller; The upper end of the underwater vibratory hammer is connected to the floating crane, and the lower end of the underwater vibratory hammer is provided with a clamping part for clamping the steel pile. The underwater vibratory hammer is configured to flip the steel pile and fix it. The transport barge is used to transport the steel pile horizontally to the lower end of the underwater vibratory hammer; The jacket is fixed to the seabed, and the skirt pile sleeve is fixedly installed at the upper end of the jacket; The pile clamp is installed at the upper end of the skirt pile sleeve and is used to lock the steel pile inserted into the skirt pile sleeve; The underwater vibratory hammer is equipped with a monitoring component, which is communicatively connected to the input terminal of the controller, and the output terminal of the controller is communicatively connected to the underwater vibratory hammer.

2. The integrated pile driving system based on a flip-vibration hammer according to claim 1, characterized in that, The monitoring component includes a water pressure sensor, an attitude sensor, and a data processing unit. The water pressure sensor is located on the outside of the clamping part and is used to measure the penetration depth of the steel pile into the mud. The attitude sensor is located on the inside of the clamping part and is used to measure the flip angle of the underwater vibratory hammer and the verticality of the steel pile. The data processing unit is located on the outside of the underwater vibratory hammer and is used to record the time taken for the steel pile to penetrate the mud. The water pressure sensor, the attitude sensor, and the data processing unit are all communicatively connected to the input terminal of the controller.

3. The integrated pile driving system based on a flipping vibratory hammer according to claim 2, characterized in that, The underwater vibratory hammer is also equipped with a protective cabin on its outside, and the data processing unit is located inside the protective cabin.

4. The integrated pile driving system based on a flipping vibratory hammer according to claim 3, characterized in that, A shock-absorbing assembly is provided between the protective cabin and the underwater vibratory hammer. The shock-absorbing assembly includes a rubber shock-absorbing pad and a metal shock-absorbing spring.

5. An integrated pile driving method based on a flip-type vibratory hammer, employing the integrated pile driving system based on a flip-type vibratory hammer as described in any one of claims 1 to 4, characterized in that, Includes the following steps: S1. Use the clamping part of the underwater vibratory hammer to lift the steel piles that are placed horizontally on the transport barge and flip them to a vertical position; S2. The clamping part clamps the vertical steel pile and inserts the vertical steel pile into the skirt pile sleeve; S3. Start the underwater vibratory hammer to drive the vertical steel pile with high frequency vibration, so that the clamping part is connected to the vertical steel pile and sinks synchronously. S4. Repeat steps S1 to S3. After inserting and initially driving at least two steel piles, use a pile clamp to lock the steel piles so that the guide frame enters a structurally safe state. S5. In the locked state of step S4, continue to use the underwater vibratory hammer to complete the insertion and initial pile driving of the remaining steel piles; S6. Drive all steel piles to the final depth in the mud as designed.

6. The integrated pile driving method based on a flipping vibratory hammer according to claim 5, characterized in that, In steps S2 and S3, construction data is collected in real time by a monitoring component integrated on the underwater vibratory hammer.

7. The integrated pile driving method based on a flipping vibratory hammer according to claim 6, characterized in that, In step S3, the controller controls the driving parameters of the underwater vibratory hammer based on the mud penetration depth of the steel pile measured by the water pressure sensor.

8. The integrated pile driving method based on a flipping vibratory hammer according to claim 6, characterized in that, In step S2, the controller automatically controls the underwater vibratory hammer to adjust the attitude of the steel pile or issues an alarm to prompt the operator to intervene when the verticality deviation of the steel pile exceeds a preset threshold, based on the tilt angle of the underwater vibratory hammer and the verticality of the steel pile measured by the attitude sensor.

9. The integrated pile driving method based on a flipping vibratory hammer according to claim 5, characterized in that, In step S5, after the initial fixing of all steel piles is completed, the transport barge is instructed to leave the work site.

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