Floating type foundation undocking construction method
By constructing the project in separate shallow and deep dock areas, and combining a multi-point traction system with phased adjustments, the problems of high environmental dependence and high safety risks during the undocking process of floating wind turbine foundations were solved. This achieved efficient undocking with uniform stress and stable attitude, improving the safety and adaptability of the construction.
Patent Information
- Application Number
- CN202511780616.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-03-03
AI Technical Summary
The existing construction and launching methods for floating wind power foundations have problems such as strong environmental dependence, complex operation process, poor scheduling flexibility and high transportation safety risks, especially in the case of limited site conditions, it is difficult to achieve safe and efficient construction.
The construction was carried out in two separate zones: shallow dock and deep dock. A multi-point traction system and a phased adjustment method were used. The position was adjusted in the shallow dock, the attitude was adjusted in the deep dock, and traction and widening were carried out after the dock gate was opened. This ensured that the floating foundation was subjected to uniform force and had a stable attitude during the docking process. Multi-point cables were used to control the balance and attitude of the dock gate and reduce the impact of water flow and waves.
It improves the safety and controllability of the floating foundation launching process, reduces the risk of displacement caused by unilateral force or water level changes, enhances the adaptability and versatility of construction, and ensures the smoothness and safety of the construction process.
Smart Images
Figure CN121590718A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of port engineering technology, and in particular to a method for launching a floating foundation. Background Technology
[0002] The construction of floating wind turbine foundations mainly relies on docks or coastal wharves. When using docks, the size, berth resources, and availability of the docks make it difficult to meet the needs of large-sized floating foundations or continuous construction of multiple units. When the construction objects are large in size or numerous, they often need to be constructed in sections and assembled in the field, which not only has a long construction period but also requires high precision in subsequent assembly and welding quality control. When using coastal wharves, there are multiple restrictions such as shoreline length, load-bearing capacity, elevation conditions, shipping routes, and the passage conditions of transshipment vessels. The wharves often cannot simultaneously meet the assembly space and shipping depth requirements of large floating foundations. In addition, some coastal areas have complex terrain and large tidal ranges, and the water area near the dock is limited, making it difficult to set up large-scale construction and transportation channels. At the same time, floating foundations are greatly affected by tides, currents, wind and waves during the undocking and towing process. If the undocking path is restricted or the dock gate is not fully opened, it is easy to cause attitude deviation or uneven stress, thereby increasing the risk of undocking and even causing safety hazards such as collisions and grounding. Therefore, the existing construction and undocking methods of floating wind power foundations generally have problems such as strong dependence on the construction environment, complex operation links, poor scheduling flexibility and high transportation safety risks. There is an urgent need for a construction method that can achieve safe and efficient undocking of floating foundations under limited site conditions. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of existing undocking methods, such as strong dependence on the construction environment, complex operation process, poor scheduling flexibility and high transportation safety risks, and to provide a floating foundation undocking construction method.
[0004] In a first aspect, the present invention provides a method for launching a floating foundation, comprising a dock gate, a dock area, and a floating foundation, wherein the dock area includes a shallow dock area and a deep dock area, and further comprising: S1. Tow the floating foundation to the shallow dock area; S2. After the floating foundation reaches the shallow dock area, the position of the floating foundation is adjusted so that the floating foundation is pulled to the deep dock area. S3. Adjust the position of the floating foundation again so that the floating foundation is moored at the berthing point in the shallow dock area; S4. The dock area is drained to the sea level, the dock gate is towed and the water is drained and floated to the storage area; S5. The dock gate is located behind the storage area, and the dock outlet is widened. S6. After widening the dock opening, adjust the attitude of the traction floating foundation to launch it out of the dock.
[0005] Preferably, before performing step S1, a traction system is established and the floating foundation is cabled. The traction system includes a first traction device, a second traction device, a third traction device, a fourth traction device, a fifth traction device, a sixth traction device, a seventh traction device, an eighth traction device, a ninth traction device, a tenth traction device, an eleventh traction device, a twelfth traction device, and a thirteenth traction device. The traction system also includes a first bollard, a second bollard, a third bollard, a fourth bollard, a fifth bollard, a sixth bollard, a seventh bollard, an eighth bollard, a ninth bollard, a tenth bollard, an eleventh bollard, a twelfth bollard, a thirteenth bollard, a fourteenth bollard, a fifteenth bollard, a sixteenth bollard, and a seventeenth bollard. The traction system also includes a first cable, a second cable, a third cable, a fourth cable, and a fifth cable.
[0006] Preferably, the fifteenth bollard, the sixteenth bollard, the twelfth bollard, the second bollard, the third bollard, the fourth bollard, the ninth bollard, the third traction device, the fourth traction device, and the thirteenth traction device are located at the end of the dock area away from the dock outlet; The eighth bollard, the seventh bollard, the seventeenth bollard, the fifth traction device, the sixth traction device, the seventh traction device, and the eighth traction device are located at the end of the dock area away from the storage area; The first traction device, the second traction device, the first bollard, and the eleventh bollard are located at one end of the dock area near the storage area; The fourteenth mooring bollard, the sixth mooring bollard, the tenth mooring bollard, the ninth traction device, the tenth traction device, the eleventh traction device, and the twelfth traction device are located at one end of the dock area near the dock exit.
[0007] By distributing bollards and traction devices with different numbers at different locations in the dock area, the traction system forms a multi-point force system in space, including front-to-back, left-to-right, and longitudinal directions. This achieves force balance for the floating foundation during the undocking process, avoiding offset or rotation caused by unilateral force. This arrangement allows the traction devices near the storage area, deep dock area, and undocking port to perform the functions of initial traction, attitude fine-tuning, and undocking guidance, respectively. It can precisely control the traction angle and movement trajectory of the floating foundation at different stages, improving the accuracy of attitude adjustment.
[0008] Preferably, the floating foundation includes a base, and the base is provided with traction points around its circumference. The traction points include a first traction point, a second traction point, and a third traction point. The first traction point is arranged towards the storage area, the second traction point is arranged towards the end of the dock area away from the dock outlet, and the third traction point is arranged towards the dock outlet.
[0009] By setting multiple traction points around the circumference of the floating foundation base, and directing different traction points toward the storage area, the far end of the dock area, and the dock exit direction, traction force can be selectively applied according to the dock exit stage, achieving directional and stage-specific traction control and improving the controllability of the floating foundation's dock exit.
[0010] Preferably, before step S1, the floating foundation is towed, including: The second traction device connects to the first traction point by passing the first cable bollard and the second cable bollard in sequence via a cable; The third traction device is connected to the first traction point by passing the third cable pile and the fourth cable pile in sequence via a cable; The seventh traction device is connected to the first traction point by a cable that bypasses the fifth cable pile; The tenth traction device is connected to the first traction point by a cable that bypasses the sixth cable pile; The sixth traction device is connected to the second traction point by a cable that passes around the eighth cable bollard; The second traction point is also equipped with a first cable connected to the dock area; The fifth traction device is connected to the third traction point by a cable that passes around the seventh cable bollard. The third traction point is equipped with a second cable that connects to the dock area.
[0011] By connecting different traction devices to different traction points through multiple sets of cable piles, the force on the floating foundation can be decomposed and transmitted in multiple directions when traction is started, avoiding yaw and attitude instability caused by a single traction direction, and achieving a more uniform force distribution.
[0012] Preferably, step S2, adjusting the position of the floating foundation to bring it to the deep-water area, includes: S21. Disconnect the first cable from the second cable; S22, the fifth traction device loosens the cable, the sixth traction device loosens the cable, and the cables of the tenth traction device and the second traction device tighten; S23, The floating foundation reaches the deep dock area.
[0013] By releasing the first and second cables during the movement of the floating foundation from the shallow dock area to the deep dock area, and by coordinating the loosening and tightening of the cables of different traction devices, the traction force can be distributed and adjusted in real time according to the foundation position, ensuring continuous and stable force during the undocking process. During the traction process, by controlling the force changes of the traction devices in different directions, the floating foundation can always maintain a balanced state when moving to the deep dock area, avoiding longitudinal tilting and swaying caused by changes in water depth or uneven force.
[0014] Preferably, step S3 includes: S31. The cable of the fourth traction device passes sequentially around the fourth cable pile and the ninth cable pile and connects to the second traction point; S32. The cable of the tenth traction device and the cable of the second traction device are released synchronously. S33, the cables of the fifth traction device, the sixth traction device, and the fourth traction device are tightened; S34. The cable of the seventh traction device is loosened, and the cable of the third traction device is tightened. S35. The first traction point is connected to the end of the dock area near the storage area via the third cable and the fourth cable. S36. Disconnect the tenth traction device and the second traction device from the first traction point, and disconnect the sixth traction device from the second traction point.
[0015] By precisely controlling the sequence of launching and retracting the cables of multiple traction devices during the berthing process of the floating foundation, the floating foundation can gradually adjust its position and angle under the action of forces in multiple directions, thereby achieving high-precision berthing and positioning.
[0016] Preferably, the dock gate is first secured before step S4, including: The cable of the ninth traction device is routed around the tenth cable bollard and connected to the end of the dock gate facing the storage area. The cable of the tenth traction device is routed around the sixth cable bollard and connected to the end of the dock gate facing the storage area. The cable of the first traction device is sequentially passed around the eighteenth and eleventh cable piles and connected to the end of the dock gate facing the storage area. The cable of the second traction device is looped around the eighteenth mooring bollard and connected to the end of the dock gate facing the storage area; The cable of the thirteenth traction device is looped around the twelfth cable bollard and connected to the end of the dock gate away from the storage area; The cable of the sixth traction device is looped around the eighth cable bollard and connected to the end of the dock gate away from the storage area. The cable of the eighth traction device is looped around the thirteenth mooring bollard and connected to the end of the dock gate away from the storage area.
[0017] By securing the dock gate at multiple points before releasing water and setting traction connections at both the end facing the storage area and the end away from the storage area, the dock gate achieves a balanced force state during lifting and movement, preventing imbalance or swaying of the dock gate due to unidirectional force. Through the coordinated operation of the traction devices at the end facing the storage area and the end away from the storage area, the tilt angle and floating balance of the dock gate can be adjusted in real time during the water release and lifting stages, effectively preventing the dock gate from swaying or overturning under water flow disturbance. Through multi-point traction and directional fixing, the dock gate and floating foundation can form a stable force system before leaving the dock, significantly reducing the risks caused by water level changes and wave interference during the leaving process, and ensuring a smooth and safe construction process.
[0018] Preferably, step S4 further includes: S41. Drain the water from the dock gate; S42. Loosen the cables of the eighth traction device and the ninth traction device, and collect the cables of the second traction device and the thirteenth traction device. S43, the cables of the sixth traction device, the eighth traction device, and the thirteenth traction device are released simultaneously; S44. The connection between the ninth traction device and the dock gate is released; S45. The cables of the first traction device, the second traction device, and the tenth traction device are tightened simultaneously. S46. The dock gate enters the storage area, and the first traction device, the second traction device, the sixth traction device, the eighth traction device, the tenth traction device, and the thirteenth traction device are disconnected from the dock gate; S47. The cable of the ninth traction device passes through the fourteenth cable bollard and connects to the first traction point; S48. Disconnect the seventh traction device from the first traction point. The entire process, through a combination of cable deployment, connection and disconnection, and relocation, ensures the smooth and controlled operation of the dock gate from drainage, buoyancy to storage, significantly reducing operational risks and ensuring a safe and reliable construction process.
[0019] Preferably, step S6 includes: S51. Perform cable-laying work on the floating foundation; S511, The cable of the second traction device passes around the first cable stake and the second cable stake and connects to the first traction point; S512, The cable of the thirteenth traction device passes around the fifteenth cable bollard and connects to the first traction point; S513, The cable of the fourth traction device passes sequentially around the fourth cable pile and the ninth cable pile and connects to the second traction point; S514. The cable of the fifth traction device passes around the seventh cable bollard and connects to the third traction point; S515, The cable of the sixth traction device passes around the eighth cable bollard and connects to the second traction point; S516, The cable of the seventh traction device is connected to the first traction point; S517. The cable of the eighth traction device is connected to the third traction point; S518, The cable of the ninth traction device passes around the tenth cable pile and connects to the third traction point; S519. The cable of the tenth traction device passes around the fourteenth cable bollard and connects to the first traction point; S52. Towing the floating foundation to move it in the deep dock area; S521. Loosen the cables of the fifth traction device and the sixth traction device, and tighten the cables of the tenth traction device, the thirteenth traction device, the second traction device, and the ninth traction device. S522. Disconnect the seventh traction device from the first traction point, and then connect the cable of the seventh traction device around the second traction point and the third traction point before connecting it to the first traction point. S523. Disconnect the ninth traction device from the third traction point, and connect the cable of the ninth traction device to the second traction point in sequence around the first traction point. S524. Connect the cable of the eleventh traction device to the first traction point, connect the cable of the twelfth traction device to the third traction point, and arrange the cables of the eleventh traction device and the twelfth traction device to cross each other. S525. A first positioning barge and a second positioning barge are set in the direction of the dock exit. The first positioning barge and the second positioning barge are symmetrically arranged. The first positioning barge is connected to the third traction point by a cable, and the second positioning barge is connected to the first traction point by a cable. S53. Tow the floating foundation toward the dock outlet; S531. Simultaneously release the cables of the second traction device, the third traction device, the fourth traction device, and the thirteenth traction device; S532. Simultaneously tighten the cables of the eighth traction device, the tenth traction device, the eleventh traction device, the twelfth traction device, the first positioning barge, and the second positioning barge until the floating foundation is located at the dock outlet. S54. Undo the floating foundation; S541. Release the cables of the fifth traction device and the sixth traction device, release the eleventh traction device from the first traction point and connect it to the second traction point, release the twelfth traction device from the third traction point and connect it to the first traction point. S542, Loosen the cables of the second traction device, the third traction device, the fourth traction device, and the thirteenth traction device, and tighten the cables of the first positioning barge and the second positioning barge. S543. Release the cables of the second traction device, the third traction device, the fourth traction device, the thirteenth traction device, the eighth traction device, and the ninth traction device, while simultaneously tightening the cables of the first positioning barge and the second positioning barge. S544. Connect and tow the floating foundation; S545. Release the cables of the seventh traction device, the ninth traction device, the tenth traction device, and the eleventh traction device. S55, completed undocking.
[0020] By pre-arranging the traction system, adjusting the tension and relaxation of the cables in stages, and using a positioning barge for auxiliary positioning, the entire process of floating foundation operation from the deep dock area to the dock outlet is smooth and efficient, significantly shortening the docking time.
[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention provides a method for launching a floating foundation. By setting up shallow and deep dock areas and employing a phased traction and position adjustment approach, the floating foundation experiences more uniform stress and exhibits greater stability during launch, avoiding capsizing and displacement caused by single traction or rapid water level changes, thus improving the safety of launch operations. By releasing water to the sea level in the dock area before traction of the dock gate to the storage area, instability caused by uneven water pressure during water release or buoyancy is avoided, enhancing the safety and reliability of dock gate operation. By widening the launch opening after dock gate storage, this method can be applied to floating foundations of different sizes and structural forms, enhancing the adaptability and versatility of launch construction. Further adjustment of the floating foundation's attitude after widening the launch opening enables precise positioning and smooth launch, reducing the risk of yaw and collision during launch. The entire construction process employs a coordinated control method of phased water release, traction, and attitude adjustment, keeping the floating foundation under control throughout the launch process, significantly improving the controllability and safety of construction. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the cabled operation of the floating foundation in S1 of Embodiment 1 of the present invention. Figure 2 In this invention Figure 1 Enlarged view of point A; Figure 3 In this invention Figure 1 Enlarged view of point B; Figure 4 In this invention Figure 1 Enlarged view of point C; Figure 5 This is a schematic diagram of the floating foundation moving towards the deep-water area in this invention; Figure 6 This is a schematic diagram of the floating foundation located in the deep dock area in this invention; Figure 7 This is a schematic diagram of the floating foundation located at the berthing point in this invention; Figure 8 This is a schematic diagram of the cable-operated operation of the dock gate in this invention; Figure 9 In this invention Figure 8 Enlarged view of point D; Figure 10 In this invention Figure 8 Enlarged view of point E; Figure 11 This is a schematic diagram illustrating the movement of the dock gate in this invention; Figure 12 In this invention Figure 11 Enlarged view at point F; Figure 13 This is a schematic diagram of the dock gate located in the storage area in this invention; Figure 14 This is a schematic diagram of the floating foundation with cable in this invention; Figure 15 This is a schematic diagram illustrating the floating of a floating foundation in this invention; Figure 16 In this invention Figure 15 Enlarged view of point G; Figure 17 In this invention Figure 15 Enlarged view of point H; Figure 18 A schematic diagram illustrating the preparation for launching the floating foundation in this invention; Figure 19 In this invention Figure 18 Enlarged view of point I; Figure 20 In this invention Figure 18 Enlarged view of point J; Figure 21 In this invention Figure 18 Enlarged view of point K; Figure 22 This is a schematic diagram of the floating foundation launching process in this invention; Figure 23 In this invention Figure 22 Enlarged view of point L; Figure 24 In this invention Figure 22 Enlarged view at point M; Figure 25 This is a schematic diagram of the floating foundation of the present invention located at the dock gate; Figure 26 This is a schematic diagram illustrating the towing of the floating foundation of the present invention. Figure 27 This is a schematic diagram illustrating the completion of the towing of the floating foundation of the present invention; Figure 28 This is a flowchart of the construction method of the present invention.
[0023] Markings in the diagram: 1-Dock gate; 2-Dock area; 21-Shallow dock area; 211-Mooring point; 22-Deep dock area; 3-Floating foundation; 31-Base; 32-First towing point; 33-Second towing point; 34-Third towing point; 4-Storage area; 1a-First towing device; 1b-Second towing device; 1c-Third towing device; 1d-Fourth towing device; 1e-Fifth towing device; 1f-Sixth towing device; 1g-Seventh towing device; 1h-Eighth towing device; 1i-Ninth towing device; 1j-Tenth towing device; 1k-Eleventh towing device; 1L-Twelfth towing device; 1m-Thirteenth towing device Leading device; 2a-First bollard; 2b-Second bollard; 2c-Third bollard; 2d-Fourth bollard; 2e-Fifth bollard; 2f-Sixth bollard; 2g-Seventh bollard; 2h-Eighth bollard; 2i-Ninth bollard; 2j-Tenth bollard; 2k-Eleventh bollard; 2L-Twelfth bollard; 2m-Thirteenth bollard; 2n-Fourteenth bollard; 2o-Fifteenth bollard; 2p-Sixteenth bollard; 2q-Seventeenth bollard; 3a-First cable; 3b-Second cable; 3c-Third cable; 3d-Fourth cable; 3e-Fifth cable; 5-First positioning barge; 6-Second positioning barge; 7-Side tow barge; 8-Main tow barge. Detailed Implementation
[0024] The present invention will now be described in further detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0025] Example 1 like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 11 , Figure 13 , Figure 14 , Figure 15 , Figure 18 , Figure 22 , Figure 25 , Figure 26 , Figure 27 and Figure 28The method illustrates a floating foundation launch construction method. The construction environment includes a dock gate 1, a dock area 2, and a floating foundation 3. The dock area 2 is divided into a shallow dock area 21 and a deep dock area 22. The dock area 2 has an opening on one side, which serves as the launch port. The dock gate 1 is located at the launch port, which connects to the deep dock area 22. The construction method includes: S1, hauling the floating foundation 3 with cables and floating it to the berthing point 211. Specifically, after the floating foundation 3 reaches the shallow dock area 21, cables are attached, and the position of the floating foundation 3 is adjusted to guide it to the deep dock area 22. The position of the floating foundation 3 is then adjusted again to allow it to dock in the shallow dock area 21. Point 211; S2, Dock area 2 is lowered to sea level, dock gate 1 is towed and dewatered to float to storage area 4; S3, after dock gate 1 is in storage area 4, the dock exit is widened; S4, after the dock exit is widened, the attitude of the towing floating foundation 3 is adjusted for dock exit; furthermore, when performing the cable-pulling work in step S1, a towing system needs to be established first, which includes the first towing device 1a, the second towing device 1b, the third towing device 1c, the fourth towing device 1d, the fifth towing device 1e, the sixth towing device 1f, the seventh towing device 1g, the eighth towing device 1h, the ninth towing device 1i, the tenth towing device 1j, the eleventh towing device 1k, and the twelfth towing device 1L. The traction system also includes the thirteenth traction device 1m; the traction system further includes the first bollard 2a, the second bollard 2b, the third bollard 2c, the fourth bollard 2d, the fifth bollard 2e, the sixth bollard 2f, the seventh bollard 2g, the eighth bollard 2h, the ninth bollard 2i, the tenth bollard 2j, the eleventh bollard 2k, the twelfth bollard 2L, the thirteenth bollard 2m, the fourteenth bollard 2n, the fifteenth bollard 2o, the sixteenth bollard 2p, and the seventeenth bollard 2q; the traction system includes the first cable 3a, the second cable 3b, the third cable 3c, the fourth cable 3d, and the fifth cable 3e; furthermore, the fifteenth bollard 2o, the sixteenth bollard 2p, the twelfth bollard 2L, the second bollard 2b, the third bollard 2c, the fourth bollard 2d, the ninth bollard 2h, the tenth bollard 2j, the eleventh bollard 2k, the twelfth bollard 2L, the thirteenth bollard 2m, the fourteenth bollard 2n, the fifteenth bollard 2c, the sixteenth bollard 2d, the ninth bollard 2q, the thirteenth bollard 2m, the sixteenth bollard 2n, the fifteenth bollard 2c, the fourth bollard 2d, the ninth bollard 2h, the eleventh bollard 2k, the eleventh bollard 2k, the twelfth bollard 2k, the thirteenth bollard 2m, the fourteenth bollard Mooring bollard 2i, third traction device 1c, fourth traction device 1d, and thirteenth traction device 1m are located at the end of dock area 2 away from the dock exit; mooring bollard 2h, seventh mooring bollard 2g, seventeenth mooring bollard 2q, fifth traction device 1e, sixth traction device 1f, seventh traction device 1g, and eighth traction device 1h are located at the end of dock area 2 away from the storage area 4; first traction device 1a, second traction device 1b, first mooring bollard 2a, and eleventh mooring bollard 2k are located at the end of dock area 2 near the storage area 4; fourteenth mooring bollard 2n, sixth mooring bollard 2f, tenth mooring bollard 2j, ninth traction device 1i, tenth traction device 1j, eleventh traction device 1k, and twelfth traction device 1L are located at the end of dock area 2 near the dock exit.
[0026] In one or more embodiments, the floating base 3 includes a base 31, with traction points circumferentially arranged on the base 31. The traction points include a first traction point 32, a second traction point 33, and a third traction point 34. The first traction point 32 is positioned towards the storage area 4, the second traction point 33 is positioned towards the end of the dock area 2 furthest from the dock outlet, and the third traction point 34 is positioned towards the dock outlet. Figure 1 and Figure 3 As shown.
[0027] In one or more embodiments, the cable-laying operation of the floating foundation 3 in step S1 is as follows: the second traction device 1b connects to the first traction point 32 by passing the first cable bollard 2a and the second cable bollard 2b in sequence via a cable; the third traction device 1c connects to the first traction point 32 by passing the third cable bollard 2c and the fourth cable bollard 2d in sequence via a cable; the seventh traction device 1g connects to the first traction point 32 by passing the fifth cable bollard 2e via a cable; the tenth traction device 1j connects to the first traction point 32 by passing the sixth cable bollard 2f via a cable; the sixth traction device 1... f connects to the second traction point 33 via a cable that bypasses the eighth mooring bollard 2h; the second traction point 33 is also connected to the dock area 2 via a first cable 3a; the fifth traction device 1e connects to the third traction point 34 via a cable that bypasses the seventh mooring bollard 2g; the third traction point 34 is connected to the dock area 2 via a second cable 3b; further, towing the floating foundation 3 to the deep dock area 22 includes: S21, releasing the first cable 3a and the second cable 3b; S22, the fifth traction device 1e loosens its cable, the sixth traction device 1f loosens its cable, and the tenth traction device... The cables of 1j and the second traction device 1b are tightened; S221, the seventh traction device 1g and the third traction device 1c control the position of the floating foundation 3; S23, the floating foundation 3 reaches the deep dock area 22; further, in step S1, the floating foundation 3 moors at the berthing point 211 of the shallow dock area 21, including: S31, the cable of the fourth traction device 1d passes through the fourth bollard 2d and the ninth bollard 2i in sequence and connects to the second traction point 33; S32, the cables of the tenth traction device 1j and the second traction device 1b are tightened together. S33. The cables of the fifth traction device 1e, the sixth traction device 1f, and the fourth traction device 1d are tightened; S34. The cable of the seventh traction device 1g is loosened, and the cable of the third traction device 1c is tightened; S35. The first traction point 32 is connected to the end of the dock area 2 near the storage area 4 through the third cable 3c and the fourth cable 3d; S36. The connection between the tenth traction device 1j and the second traction device 1b and the first traction point 32 is released, and the connection between the sixth traction device 1f and the second traction point 33 is released, as follows. Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown.
[0028] In one or more embodiments, before performing step S2, the dock gate 1 is cabled, including: connecting the cable of the ninth traction device 1i around the tenth cable bollard 2j and to the end of the dock gate 1 facing the storage area 4; connecting the cable of the tenth traction device 1j around the sixth cable bollard 2f and to the end of the dock gate 1 facing the storage area 4; connecting the cable of the first traction device 1a around the eighteenth and eleventh cable bollards 2k in sequence and to the end of the dock gate 1 facing the storage area 4; connecting the cable of the second traction device 1b around the eighteenth cable bollard and to the end of the dock gate 1 facing the storage area 4; connecting the cable of the thirteenth traction device 1m around the twelfth cable bollard 2L and to the end of the dock gate 1 away from the storage area 4; connecting the cable of the sixth traction device 1f around the eighth cable bollard 2h and to the end of the dock gate 1 away from the storage area 4; connecting the cable of the eighth traction device 1h around the thirteenth cable bollard 2m and to the end of the dock gate 1 away from the storage area 4, such as... Figure 8 , Figure 9 and Figure 10 As shown.
[0029] In one or more embodiments, step S2 further includes: S41, draining water from the dock gate 1; S42, loosening the cables of the eighth traction device 1h and the ninth traction device 1i, and collecting the cables of the second traction device 1b and the thirteenth traction device 1m; S43, simultaneously loosening the cables of the sixth traction device 1f, the eighth traction device 1h, and the thirteenth traction device 1m; S44, disconnecting the ninth traction device 1i from the dock gate 1; S45, the first traction device 1... The cables of traction device 1a, traction device 1b, and traction device 1j are simultaneously tightened; S46, the dock gate 1 enters the storage area 4, and the connections of the first traction device 1a, second traction device 1b, sixth traction device 1f, eighth traction device 1h, tenth traction device 1j, and thirteenth traction device 1m to the dock gate 1 are released; S47, the cable of the ninth traction device 1i passes through the fourteenth bollard 2n and connects to the first traction point 32; S48, the connection of the seventh traction device 1g to the first traction point 32 is released, as shown in the image. Figure 11 , Figure 12 and Figure 13 As shown.
[0030] In one or more embodiments, step S3 includes: Step 1, dismantling the 13th cable pile 2m and the 5th cable pile 2e located at the widening position; Step 2, concrete structure demolition: the demolition of the dock pier and dam caisson first uses a long-arm excavator to excavate the internal backfilled gravel layer by layer, and uses 3 blasting machines respectively arranged on the dock pier, dam caisson and pump house platform to demolish and excavate from top to bottom, step by step, down to +1.0m. Then, drilling to -8.0m, and demolishing together with the mountain below by blasting; Step 3, onshore blasting near the dock pier and dam, after pumping water out of the dock, drilling in multiple small steps to -8.0m for precise controlled blasting, and on the sea side and the rock surface exposed above the water, using the advanced construction technology of "drilling on land to -8.0m and blasting underwater", with layered charging of explosives and delayed blasting in the hole, to blast to the design elevation in one go. For the rock surface below the waterline, underwater drilling is conducted using platforms or blasting vessels, with blasting depths exceeding 5m and layered explosive charges. Step four: Underwater reef clearing. For sections above -3.0m, a long-arm excavator and dump truck are used for reef clearing; for sections below -3.0m, a grab dredger and barge are used. Excavated soil is uniformly stockpiled at two designated points on the island. The grab dredger deploys four anchors: an outward-facing V-shaped anchor at the bow and a cross anchor at the stern. Anchor cable lengths are determined based on the scope of each anchoring operation. After anchoring, the grab dredger positions itself at the edge of the work area for trial excavation, with the barge positioned to the side. Construction is carried out in zones, strips, and layers according to the work area. Zones are defined based on the length of each anchoring operation, dividing the dredging area into several zones. Each zone is approximately 100-150m long, with a layer thickness of 1.5-2m. Strip widths are arranged parallel to the long side of the dredger, based on the width of each excavation operation. Between zones and strips, there must be an overlap of 1-2 meters to ensure no area is missed during excavation. Excavated materials from the construction area are transported to the general cargo wharf, then transferred by long-arm excavators to dump trucks and transported to the stockpiling point.
[0031] In one or more embodiments, step S4 includes: S51, performing cable-laying work on the floating foundation 3; S11. The cable of the second traction device 1b passes over the first cable bollard 2a and the second cable bollard 2b and connects to the first traction point 32; S512. The cable of the thirteenth traction device 1m passes over the fifteenth cable bollard 2o and connects to the first traction point 32; S513. The cable of the fourth traction device 1d passes over the fourth cable bollard 2d and the ninth cable bollard 2i in sequence and connects to the second traction point 33; S514. The cable of the fifth traction device 1e passes over the seventh cable bollard 2g and connects to the third traction point 34; S515. The cable of the sixth traction device 1f passes over the eighth cable bollard 2h and connects to the second traction point 33; S516. The cable of the seventh traction device 1g connects to the first traction point 32; S517. The cable of the eighth traction device 1h connects to the third traction point 34. S518. The cable of the ninth traction device 1i passes around the tenth mooring bollard 2j and connects to the third traction point 34; S519. The cable of the tenth traction device 1j passes around the fourteenth mooring bollard 2n and connects to the first traction point 32; S52. The floating foundation 3 is moved in the deep dock area 22; S521. The cables of the fifth traction device 1e and the sixth traction device 1f are loosened, and the cables of the tenth traction device 1j, the thirteenth traction device 1m, the second traction device 1b, and the ninth traction device 1i are tightened; S522. The connection between the seventh traction device 1g and the first traction point 32 is released, and the cable of the seventh traction device 1g passes around the second traction point 33 and the third traction point 34 and then connects to the first traction point 32. S523. Disconnect the ninth traction device 1i from the third traction point 34, and connect the cable of the ninth traction device 1i to the second traction point 33 by passing it around the first traction point 32 in sequence; S524. Connect the cable of the eleventh traction device 1k to the first traction point 32, and connect the cable of the twelfth traction device 1L to the third traction point 34, with the cables of the eleventh traction device 1k and the twelfth traction device 1L intersecting; S525. Set up the first positioning barge 5 and the second positioning barge 6 in the direction of the dock exit, with the first positioning barge 5 and the second positioning barge 6 symmetrically arranged. The first positioning barge 5 is connected to the third traction point 34 by a cable, and the second positioning barge 6 is connected to the first traction point 32 by a cable; S53. Tow the floating foundation. 3. Move towards the dock exit; S531. Simultaneously loosen the cables of the second traction device 1b, the third traction device 1c, the fourth traction device 1d, and the thirteenth traction device 1m; S532. Simultaneously tighten the cables of the eighth traction device 1h, the tenth traction device 1j, the eleventh traction device 1k, the twelfth traction device 1L, the first positioning barge 5, and the second positioning barge 6 until the floating foundation 3 is located at the dock exit; S533. During the process of floating the floating foundation 3 to the dock exit, the eighth traction device 1h, the tenth traction device 1j, the eleventh traction device 1k, and the twelfth traction device 1L are responsible for adjusting the direction of the cables; S54. Undock the floating foundation 3.S541. Release the cables of the fifth traction device 1e and the sixth traction device 1f; release the eleventh traction device 1k from the first traction point 32 and connect it to the second traction point 33; release the twelfth traction device 1L from the third traction point 34 and connect it to the first traction point 32; S542. Loosen the cables of the second traction device 1b, the third traction device 1c, the fourth traction device 1d, and the thirteenth traction device 1m; tighten the cables of the first positioning barge 5 and the second positioning barge 6; S543. Release the cables of the second traction device 1b, the third traction device 1c, and the fourth traction device 1d. The cables of 1d, thirteenth traction device 1m, eighth traction device 1h, and ninth traction device 1i are tightened simultaneously, as are the cables of the first positioning barge 5 and the second positioning barge 6. The directions of the cables are adjusted by the fifth traction device 1e, sixth traction device 1f, eighth traction device 1h, tenth traction device 1j, eleventh traction device 1k, and twelfth traction device 1L. The floating foundation 3 is towed. The cables of the seventh traction device 1g, ninth traction device 1i, tenth traction device 1j, and eleventh traction device 1k are released. The undocking process is completed. Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 , Figure 23 , Figure 24 , Figure 25 , Figure 26 and Figure 27 As shown.
[0032] In one or more embodiments, the towing in step S545 includes: two side towers 7 towing the floating foundation 3 from the side respectively, and after the two side towers 7 have finished towing, the main tower 8 is used for towing.
[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A method for launching a floating foundation, characterized in that, It includes a dock gate (1), a dock area (2), and a floating foundation (3), wherein the dock area (2) includes a shallow dock area (21) and a deep dock area (22), and further includes: S1. The floating foundation (3) is pulled to the shallow dock area (21). S2. After the floating foundation (3) reaches the shallow dock area (21), the floating foundation (3) is adjusted in position so that the floating foundation (3) is pulled to the deep dock area (22). S3. Adjust the position of the floating foundation (3) again so that the floating foundation (3) is moored at the mooring point (211) of the shallow dock area (21). S4. The deep dock area (22) is drained to the sea level, and the dock gate (1) is pulled and drained to float to the storage area (4). S5. The dock gate (1) is located in the storage area (4) and the dock opening is widened; S6. After widening the dock opening, adjust the attitude of the traction floating foundation (3) to dock.
2. The floating foundation launching construction method according to claim 1, characterized in that, Before performing step S1, a traction system is established and the floating foundation (3) is cabled. The traction system includes a first traction device (1a), a second traction device (1b), a third traction device (1c), a fourth traction device (1d), a fifth traction device (1e), a sixth traction device (1f), a seventh traction device (1g), an eighth traction device (1h), a ninth traction device (1i), a tenth traction device (1j), an eleventh traction device (1k), a twelfth traction device (1L), and a thirteenth traction device (1m). The traction system also includes a first bollard (2a), a second bollard (2b), a third bollard (2c), a fourth bollard (2d), a fifth bollard (2e), a sixth bollard (2f), a seventh bollard (2g), an eighth bollard (2h), a ninth bollard (2i), a tenth bollard (2j), an eleventh bollard (2k), a twelfth bollard (2L), a thirteenth bollard (2m), a fourteenth bollard (2n), a fifteenth bollard (2o), a sixteenth bollard (2p), and a seventeenth bollard (2q). The traction system also includes a first cable (3a), a second cable (3b), a third cable (3c), a fourth cable (3d), and a fifth cable (3e).
3. The floating foundation launching construction method according to claim 2, characterized in that, The fifteenth mooring bollard (2o), the sixteenth mooring bollard (2p), the twelfth mooring bollard (2L), the second mooring bollard (2b), the third mooring bollard (2c), the fourth mooring bollard (2d), the ninth mooring bollard (2i), the third traction device (1c), the fourth traction device (1d), and the thirteenth traction device (1m) are located at the end of the dock area (2) away from the dock outlet; The eighth mooring bollard (2h), the seventh mooring bollard (2g), the seventeenth mooring bollard (2q), the fifth traction device (1e), the sixth traction device (1f), the seventh traction device (1g), and the eighth traction device (1h) are located at one end of the dock area (2) away from the storage area (4); The first traction device (1a), the second traction device (1b), the first bollard (2a) and the eleventh bollard (2k) are located at one end of the dock area (2) near the storage area (4); The fourteenth mooring bollard (2n), the sixth mooring bollard (2f), the tenth mooring bollard (2j), the ninth traction device (1i), the tenth traction device (1j), the eleventh traction device (1k), and the twelfth traction device (1L) are located at one end of the dock area (2) near the dock outlet.
4. The floating foundation launching construction method according to claim 3, characterized in that, The floating foundation (3) includes a base (31), and the base (31) is provided with traction points in the circumference. The traction points include a first traction point (32), a second traction point (33) and a third traction point (34). The first traction point (32) is set towards the storage area (4), the second traction point (33) is set towards the end of the dock area (2) away from the dock outlet, and the third traction point (34) is set towards the dock outlet.
5. The floating foundation launching construction method according to claim 4, characterized in that, Before step S1, the floating foundation (3) is towed, including: The second traction device (1b) is connected to the first traction point (32) by passing the first cable bollard (2a) and the second cable bollard (2b) in sequence via a cable; The third traction device (1c) is connected to the first traction point (32) by passing the third cable bollard (2c) and the fourth cable bollard (2d) in sequence by a cable; The seventh traction device (1g) is connected to the first traction point (32) by a cable that passes around the fifth cable bollard (2e); The tenth traction device (1j) is connected to the first traction point (32) by passing around the sixth cable bollard (2f) with a cable; The sixth traction device (1f) is connected to the second traction point (33) by passing around the eighth cable bollard (2h) with a cable; The second traction point (33) is also provided with a first cable (3a) connected to the dock area (2); The fifth traction device (1e) is connected to the third traction point (34) by a cable that passes around the seventh cable bollard (2g); The third traction point (34) is provided with a second cable (3b) connected to the dock area (2).
6. The floating foundation launching construction method according to claim 5, characterized in that, Step S2, which involves adjusting the position of the floating foundation (3) to pull it to the deep-water area (22), includes: S21. Release the first cable (3a) from the second cable (3b); S22, the fifth traction device (1e) loosens the cable, the sixth traction device (1f) loosens the cable, and the cables of the tenth traction device (1j) and the second traction device (1b) tighten; S23, The floating foundation (3) reaches the deep dock area (22).
7. The floating foundation launching construction method according to claim 6, characterized in that, Step S3 includes: S31, The cable of the fourth traction device (1d) passes through the fourth cable pile (2d) and the ninth cable pile (2i) in sequence and connects to the second traction point (33); S32, The cable of the tenth traction device (1j) and the cable of the second traction device (1b) are released synchronously; S33, the cables of the fifth traction device (1e), the sixth traction device (1f), and the fourth traction device (1d) are tightened; S34. The cable of the seventh traction device (1g) is loosened, and the cable of the third traction device (1c) is tightened. S35, the first traction point (32) is connected to one end of the dock area (2) near the storage area (4) via the third cable (3c) and the fourth cable (3d); S36. Disconnect the tenth traction device (1j) and the second traction device (1b) from the first traction point (32), and disconnect the sixth traction device (1f) from the second traction point (33).
8. The floating foundation launching construction method according to claim 7, characterized in that, Before step S4, the dock gate (1) is first secured, including: The cable of the ninth traction device (1i) is passed around the tenth cable bollard (2j) and connected to the end of the dock gate (1) facing the storage area (4); The cable of the tenth traction device (1j) is passed around the sixth cable bollard (2f) and connected to the end of the dock gate (1) facing the storage area (4); The cable of the first traction device (1a) is successively passed around the eighteenth cable bollard and the eleventh cable bollard (2k) and connected to the end of the dock gate (1) facing the storage area (4); The cable of the second traction device (1b) is passed around the eighteenth mooring bollard and connected to the end of the dock gate (1) facing the storage area (4); The cable of the thirteenth traction device (1m) is looped around the twelfth mooring bollard (2L) and connected to the end of the dock gate (1) away from the storage area (4); The cable of the sixth traction device (1f) is looped around the eighth mooring bollard (2h) and connected to the end of the dock gate (1) away from the storage area (4); The cable of the eighth traction device (1h) is looped around the thirteenth mooring bollard (2m) and connected to the end of the dock gate (1) away from the storage area (4).
9. The floating foundation launching construction method according to claim 8, characterized in that, Step S4 also includes: S41. Drain the water from the dock gate (1); S42. Loosen the cable of the eighth traction device (1h) and the cable of the ninth traction device (1i), and collect the cable of the second traction device (1b) and the cable of the thirteenth traction device (1m). S43. The cables of the sixth traction device (1f), the eighth traction device (1h), and the thirteenth traction device (1m) are released synchronously. S44. The connection between the ninth traction device (1i) and the dock gate (1) is released; S45. The cable of the first traction device (1a), the cable of the second traction device (1b), and the cable of the tenth traction device (1j) are tightened synchronously. S46. The dock gate (1) enters the storage area (4) and disconnects the first traction device (1a), the second traction device (1b), the sixth traction device (1f), the eighth traction device (1h), the tenth traction device (1j), and the thirteenth traction device (1m) from the dock gate (1); S47. The cable of the ninth traction device (1i) passes through the fourteenth cable bollard (2n) and connects to the first traction point (32); S48. Disconnect the seventh traction device (1g) from the first traction point (32).
10. A method for launching a floating foundation from its dock according to claim 8, characterized in that, Step S6 includes: S51. Perform cable-laying work on the floating foundation (3); S511, The cable of the second traction device (1b) passes around the first cable post (2a) and the second cable post (2b) and connects to the first traction point (32); S512, The cable of the thirteenth traction device (1m) passes around the fifteenth cable bollard (2o) and connects to the first traction point (32); S513, The cable of the fourth traction device (1d) passes through the fourth cable pile (2d) and the ninth cable pile (2i) in sequence and connects to the second traction point (33); S514, The cable of the fifth traction device (1e) passes around the seventh cable bollard (2g) and connects to the third traction point (34); S515, The cable of the sixth traction device (1f) passes around the eighth cable pile (2h) and connects to the second traction point (33); S516, The cable of the seventh traction device (1g) is connected to the first traction point (32); S517, The cable of the eighth traction device (1h) is connected to the third traction point (34); S518, The cable of the ninth traction device (1i) passes around the tenth cable pile (2j) and connects to the third traction point (34); S519, The cable of the tenth traction device (1j) passes around the fourteenth cable bollard (2n) and connects to the first traction point (32); S52, Towing the floating foundation (3) to move it in the deep dock area (22); S521. Loosen the cable of the fifth traction device (1e) and the cable of the sixth traction device (1f), and tighten the cable of the tenth traction device (1j), the cable of the thirteenth traction device (1m), the cable of the second traction device (1b) and the cable of the ninth traction device (1i). S522, disconnect the seventh traction device (1g) from the first traction point (32), and then connect the cable of the seventh traction device (1g) around the second traction point (33) and the third traction point (34) to the first traction point (32); S523. Disconnect the ninth traction device (1i) from the third traction point (34), and connect the cable of the ninth traction device (1i) to the second traction point (33) in sequence around the first traction point (32). S524. Connect the cable of the eleventh traction device (1k) to the first traction point (32), connect the cable of the twelfth traction device (1L) to the third traction point (34), and arrange the cable of the eleventh traction device (1k) and the cable of the twelfth traction device (1L) to cross each other. S525. A first positioning barge and a second positioning barge are set in the direction of the dock exit. The first positioning barge and the second positioning barge are symmetrically arranged. The first positioning barge is connected to the third traction point (34) by a cable, and the second positioning barge is connected to the first traction point (32) by a cable. S53, Towing the floating foundation (3) toward the dock outlet; S531. Simultaneously release the cable of the second traction device (1b), the cable of the third traction device (1c), the cable of the fourth traction device (1d), and the cable of the thirteenth traction device (1m). S532, Simultaneously tighten the cables of the eighth traction device (1h), the tenth traction device (1j), the eleventh traction device (1k), the twelfth traction device (1L), the first positioning barge, and the second positioning barge until the floating foundation (3) is located at the dock outlet. S54. The floating foundation (3) is unloaded from the dock; S541. Release the cable of the fifth traction device (1e) and the cable of the sixth traction device (1f), release the eleventh traction device (1k) from the first traction point (32) and connect it to the second traction point (33), release the twelfth traction device (1L) from the third traction point (34) and connect it to the first traction point (32). S542, loosen the cable of the second traction device (1b), the cable of the third traction device (1c), the cable of the fourth traction device (1d) and the cable of the thirteenth traction device (1m), and tighten the cable of the first positioning barge and the cable of the second positioning barge. S543, release the cables of the second traction device (1b), the third traction device (1c), the fourth traction device (1d), the thirteenth traction device (1m), the eighth traction device (1h), and the ninth traction device (1i), and simultaneously tighten the cables of the first positioning barge and the second positioning barge. S544, Connect the floating foundation (3); S545. Release the cable of the seventh traction device (1g), the cable of the ninth traction device (1i), the cable of the tenth traction device (1j), and the cable of the eleventh traction device (1k). S55, completed undocking.