A pile stabilizing platform for offshore wind power underwater four-pile jacket foundation construction

Abstract

The present application relates to a kind of offshore wind power underwater four-pile jacket foundation construction pile stabilizing platform, by the setting of foundation platform and hammering platform etc., when construction, synchronous plate is hoisted to the upper side of positioning pile, and four connecting sleeves are connected with four positioning piles, then pile hammer is hoisted to the top of receiving disc, and receiving disc is hammered, so that multiple positioning piles are synchronously lowered, by simultaneously synchronously driving multiple positioning piles, not only the perpendicularity of multiple positioning piles can be improved, but also the positional accuracy between multiple positioning piles is increased, and the working time of piling ship is greatly reduced, the construction efficiency is improved, the project cycle is saved, and by the setting of receiving disc etc., the hammering effect on four positioning piles can be improved during rotating hammering, and the hammering position can be changed quickly and conveniently, which greatly speeds up the construction progress.

Description

Technical Field

[0001] This invention relates to a stabilization platform for the construction of an underwater four-pile jacket foundation for offshore wind power, and particularly to a stabilization platform for the construction of an underwater four-pile jacket foundation for offshore wind power. Background Technology

[0002] When constructing deep-water offshore wind power pile foundations, a pile stabilization platform is needed to guide and stabilize the pile foundations. Therefore, the pile stabilization platform needs to be installed first during construction. The pile stabilization platform mainly consists of the platform body and four positioning piles, which are driven into the seabed by a pile driving vessel.

[0003] Since the piling vessel can only install one positioning pile at a time, the construction efficiency is low and the construction period is extended. Furthermore, the positioning piles are installed in batches, so it is necessary to carefully control the verticality and parallelism of the positioning piles, which further increases the difficulty of construction. Summary of the Invention

[0004] The technical problem that this invention aims to solve in view of the above-mentioned prior art is that the construction efficiency of positioning piles is low and the positioning accuracy is poor.

[0005] To address the aforementioned issues, this invention provides a stabilization platform for offshore wind power underwater four-pile jacket foundation construction, comprising a foundation platform and a hammer-pressing platform. The foundation platform includes a top platform and an anti-settlement plate. Auxiliary cylinders are fixedly connected between the four corners of the top platform and the four corners of the anti-settlement plate. Fixed supports are fixedly connected between the four auxiliary cylinders. The fixed supports are located between the top platform and the anti-settlement plate. Positioning frames are fixedly connected to the outer wall of the connection between the top platform and the four auxiliary cylinders. Guide cylinders matching the positioning frames are fixedly connected to the outer wall of the fixed supports. The corresponding positioning frames and guide cylinders are on the same straight line. The hammer-pressing platform includes a synchronous plate. Four connecting sleeves matching the four auxiliary cylinders are fixedly connected to the bottom end of the synchronous plate. A receiving plate is installed in the middle of the top of the synchronous plate. Counterweights are fixedly connected to the four corners of the top of the synchronous plate. The counterweights are configured as water tanks.

[0006] The construction process for the foundation platform and the hammer compaction platform includes the following steps:

[0007] S1. Insert the positioning stakes into the four auxiliary cylinders in sequence, and make the drop difference between the tops of the multiple positioning stakes less than 30 cm.

[0008] S2. Hoist the synchronous plate to the top of the positioning pile and engage the four connecting sleeves with the four positioning piles.

[0009] S3. Hoist the pile hammer to the top of the impact plate and hammer the impact plate to make multiple positioning piles descend synchronously.

[0010] As a further improvement of this application, the impact plate is disc-shaped and rotatably connected to the synchronizing plate. A driver for driving the impact plate to rotate is installed in the middle of the bottom end of the synchronizing plate.

[0011] As a further improvement to this application, the hammering method of the pile driver includes the following steps:

[0012] S1. When the pile hammer is hoisted to the top of the impact plate, the pile hammer is located on one side of the center point of the impact plate.

[0013] S2. Each time the pile driver strikes, the driver rotates the impact plate by a fixed angle C.

[0014] S3. When the four positioning piles deviate, the impact plate drives the pile hammer to move to the position, and then the pile hammer strikes to complete the correction.

[0015] With the above settings, the pile driver can not only improve the hammering effect on the four positioning piles during the rotating hammering process, but also quickly and conveniently change the hammering position when the four positioning piles shift, which greatly speeds up the construction progress.

[0016] As a further improvement of this application, the quotient of 360° divided by a fixed angle C is an integer; through the above setting, the pile driver can be more evenly hammered on different parts after rotating once.

[0017] As another improvement of this application, the method of using the counterweights is as follows: before the pile hammer works, a water pump is used to draw seawater and inject it into the interior of the four counterweights to increase the downward pressure of the synchronizing plate on the positioning piles; this prevents the pile hammer from failing to strike multiple positioning piles simultaneously, while reducing the energy consumption of the pile hammer and the pile driving cost of the positioning piles. Moreover, seawater is readily available, further improving the practicality of this invention.

[0018] As a further improvement to this application, liquid level sensors are fixedly connected to the inner walls of the bottom of multiple counterweights, and the multiple counterweights are interconnected; through the above settings, the horizontal state of the synchronization plate can be monitored, and the accuracy of the pile driver can be better controlled.

[0019] In summary, by setting up a foundation platform and a hammer-pressing platform, during construction, the synchronous plate is hoisted onto the top of the positioning piles, and the four connecting sleeves are engaged with the four positioning piles. Then, the pile hammer is hoisted to the top of the impact plate, and the impact plate is hammered, causing multiple positioning piles to descend synchronously. By simultaneously driving multiple positioning piles, not only is the verticality of the multiple positioning piles improved, but the positional accuracy between the multiple positioning piles is also increased. This also greatly reduces the working time of the pile driving vessel, improves construction efficiency, and saves project time. At the same time, by setting up the impact plate and other devices, the pile hammer can not only improve the hammering effect on the four positioning piles during the rotating hammering process, but also change the hammering position quickly and conveniently, greatly accelerating the construction progress. Attached Figure Description

[0020] Figure 1 This is a perspective view of the basic platform in the first embodiment of this application;

[0021] Figure 2 This is a perspective view of the hammer pressing platform in the first embodiment of this application;

[0022] Figure 3 This is a top perspective view of the hammer pressing platform installed on the base platform in the first embodiment of this application;

[0023] Figure 4 This is a bottom perspective view of the hammer pressing platform installed on the base platform in the first embodiment of this application;

[0024] Figure 5 This is a state diagram of the pile driver being positioned on the impact plate in the first embodiment of this application;

[0025] Figure 6 This is a front sectional view of the entire embodiment of the first and second embodiments of this application;

[0026] Figure 7 This is a force diagram of the positioning pile when the pile hammer is located on one side of the impact plate in the second embodiment of this application;

[0027] Figure 8 This is a force diagram of the positioning pile when the pile hammer is located on the other side of the impact plate in the second embodiment of this application.

[0028] Explanation of the labels in the diagram:

[0029] 1. Top platform; 2. Anti-sinking plate; 3. Auxiliary cylinder; 4. Fixed bracket; 5. Positioning frame; 6. Guide cylinder; 7. Liquid level sensor; 8. Synchronization plate; 801. Connecting sleeve; 802. Impact receiving plate; 803. Counterweight. Detailed Implementation

[0030] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0031] First implementation method:

[0032] Figure 1-6 This invention discloses a stabilization platform for underwater four-pile jacket foundation construction in offshore wind power, comprising a foundation platform and a hammer pressing platform. The foundation platform includes a top platform 1 and an anti-sinking plate 2. Auxiliary cylinders 3 are fixedly connected between the four corners of the top platform 1 and the four corners of the anti-sinking plate 2. Fixed supports 4 are fixedly connected between the four auxiliary cylinders 3, located between the top platform 1 and the anti-sinking plate 2. Positioning frames 5 are fixedly connected to the outer wall of the connection between the top platform 1 and the four auxiliary cylinders 3. Guide cylinders 6 matching the positioning frames 5 are fixedly connected to the outer wall of the fixed supports 4, with the corresponding positioning frames 5 and guide cylinders 6 aligned on the same straight line. The hammer pressing platform includes a synchronous plate 8. Four connecting sleeves 801 matching the four auxiliary cylinders 3 are fixedly connected to the bottom end of the synchronous plate 8. A receiving plate 802 is installed in the middle of the top end of the synchronous plate 8. Counterweights 803, shaped like water tanks, are fixedly connected to the four corners of the top end of the synchronous plate 8.

[0033] The construction process for the foundation platform and the hammer compaction platform includes the following steps:

[0034] S1. Insert the positioning stakes into the four auxiliary cylinders 3 in sequence, and make the drop between the tops of the multiple positioning stakes less than 30 cm.

[0035] S2. Hoist the synchronous plate 8 to the upper side of the positioning pile, and make the four connecting sleeves 801 snap together with the four positioning piles;

[0036] S3. Hoist the pile hammer to the top of the impact plate 802 and hammer the impact plate 802 to make multiple positioning piles descend synchronously.

[0037] By simultaneously driving multiple positioning piles, not only can the verticality of the multiple positioning piles be improved, but the positional accuracy between the multiple positioning piles can also be increased. Furthermore, the working time of the piling vessel can be greatly reduced, construction efficiency can be improved, and the project cycle can be saved.

[0038] The counterweights 803 are used as follows: Before the pile hammer operates, seawater is pumped into the interior of the four counterweights 803 to increase the downward pressure of the synchronizing plate 8 on the positioning piles. This prevents the pile hammer from failing to strike multiple positioning piles simultaneously, reduces the energy consumption of the pile hammer, lowers the pile driving cost of the positioning piles, and, since seawater is readily available, further enhances the practicality of the invention. Liquid level sensors 7 are fixedly connected to the inner walls of the bottom of each counterweight 803, and the counterweights 803 are interconnected. Through this setup, the horizontal state of the synchronizing plate 8 can be monitored, allowing for better control of the accuracy of the pile hammer.

[0039] Second implementation method:

[0040] Figure 6-8 This invention illustrates a pile stabilization platform for underwater four-pile jacket foundation construction in offshore wind power. Unlike the first embodiment, the impact plate 802 is disc-shaped and rotatably connected to the synchronization plate 8. A driver for rotating the impact plate 802 is installed in the center of the bottom end of the synchronization plate 8. The hammering method includes the following steps:

[0041] S1. When the pile hammer is hoisted to the top of the impact plate 802, the pile hammer is located on one side of the center point of the impact plate 802.

[0042] S2. Each time the pile driver strikes, the driver causes the impact plate 802 to rotate at a fixed angle C.

[0043] S3. When the four positioning piles are misaligned, the impact plate 802 drives the pile hammer to move to the position, and then the pile hammer strikes to complete the correction.

[0044] If the pile driver is positioned at the center of the impact plate 802 and the four positioning piles slightly shift during the hammering process, the pile driver needs to be lifted to change its hammering position and gradually level the four positioning piles. This operation is too cumbersome and affects the construction progress. However, with the above settings, the pile driver can not only improve the hammering effect on the four positioning piles during the rotating hammering process, but also change the hammering position more quickly and conveniently when the four positioning piles shift, which greatly speeds up the construction progress.

[0045] The quotient of 360° divided by a fixed angle C is an integer; through the above settings, the pile driver can be more evenly hammered on different parts after rotating once.

[0046] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A pile stabilization platform for underwater four-pile jacket foundation construction in offshore wind power, comprising a foundation platform and a hammer compaction platform, characterized in that: The basic platform includes a top platform (1) and an anti-sinking plate (2). Auxiliary cylinders (3) are fixedly connected between the four corners of the top platform (1) and the four corners of the anti-sinking plate (2). Fixed supports (4) are fixedly connected between the four auxiliary cylinders (3). The fixed supports (4) are located between the top platform (1) and the anti-sinking plate (2). A positioning frame (5) is fixedly connected to the outer wall of the connection between the top platform (1) and the four auxiliary cylinders (3). A positioning bracket (5) is fixedly connected to the outer wall of the fixed support (4). The guide cylinder (6) is matched with the positioning frame (5), and the positioning frame (5) and the guide cylinder (6) are on the same straight line. The hammer pressing platform includes a synchronous plate (8). The bottom end of the synchronous plate (8) is fixedly connected to four connecting sleeves (801) that match the four auxiliary cylinders (3). The middle of the top of the synchronous plate (8) is equipped with a receiving plate (802). The four corners of the top of the synchronous plate (8) are fixedly connected to counterweights (803). The counterweights (803) are set in the shape of water tanks. The construction process for the foundation platform and the hammer compaction platform includes the following steps: S1. Insert the positioning stakes into the interior of the four auxiliary cylinders (3) in sequence, and make the drop of the top of the multiple positioning stakes less than 30 cm; S2. Hoist the synchronous plate (8) to the upper side of the positioning pile and make the four connecting sleeves (801) snap together with the four positioning piles; S3. Hoist the pile hammer to the top of the impact plate (802) and hammer the impact plate (802) to make multiple positioning piles descend synchronously.

2. The underwater four-pile jacket foundation construction stabilization platform for offshore wind power as described in claim 1, characterized in that: The impact plate (802) is disc-shaped and is rotatably connected to the synchronization plate (8). A driver for driving the impact plate (802) to rotate is installed in the middle of the bottom end of the synchronization plate (8).

3. The underwater four-pile jacket foundation construction stabilization platform for offshore wind power as described in claim 2, characterized in that: The hammering method of the pile driver includes the following steps: S1. When the pile hammer is hoisted to the top of the impact plate (802), the pile hammer is located on one side of the center point of the impact plate (802); S2. Each time the pile driver strikes, the driver drives the impact plate (802) to rotate by a fixed angle C. S3. When the four positioning piles are deviated, the impact plate (802) drives the pile hammer to move to the position, and then the pile hammer strikes to complete the correction.

4. The underwater four-pile jacket foundation construction stabilization platform for offshore wind power as described in claim 3, characterized in that: The quotient of 360° divided by a fixed angle C is an integer; through the above settings, the pile driver can be more evenly hammered on different parts after rotating once.

5. The underwater four-pile jacket foundation construction stabilization platform for offshore wind power as described in claim 1, characterized in that: The method of using the counterweight (803) is as follows: before the pile hammer works, use a water pump to draw seawater and inject it into the interior of the four counterweights (803) to increase the downward pressure of the synchronous plate (8) on the positioning pile.

6. The underwater four-pile jacket foundation construction stabilization platform for offshore wind power as described in claim 1, characterized in that: Liquid level sensors (7) are fixedly connected to the inner walls of the bottom of the multiple counterweights (803), and the multiple counterweights (803) are interconnected.

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