CN211773660U - Floating pile-stabilizing platform device based on anchoring positioning control - Google Patents
Floating pile-stabilizing platform device based on anchoring positioning control Download PDFInfo
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- CN211773660U CN211773660U CN201921975809.0U CN201921975809U CN211773660U CN 211773660 U CN211773660 U CN 211773660U CN 201921975809 U CN201921975809 U CN 201921975809U CN 211773660 U CN211773660 U CN 211773660U
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Abstract
The utility model belongs to the technical field of the ocean engineering construction is relevant, especially, relate to a steady stake platform device of showy formula based on anchoring positioning control. The utility model can provide huge horizontal counter-force for righting the large-diameter single pile through the anchor chain twisted and pulled by the hydraulic anchor machine, and the direction is easy to control and dynamically adjust, thereby playing the effect of active control and overcoming the passive control of the traditional fixed pile-stabilizing platform; the floating platform moves through towing and is positioned by the anchoring system, and compared with a fixed platform, the floating platform needs to be driven into a positioning pile, so that the offshore operation has stronger maneuverability; the floating platform is suitable for various water depths, the draft of the floating platform can be changed by adjusting the ballast water amount in the buoy under different working conditions, and the floating platform has better stability particularly in deep sea areas and ensures the safety of offshore construction.
Description
Technical Field
The utility model belongs to the technical field of the ocean engineering construction is relevant, especially, relate to a steady stake platform of showy formula based on anchoring positioning control.
Background
China is currently in a large-scale development and construction stage of offshore wind power plants, the offshore wind power plants gradually develop from offshore sea areas to deep open sea, and the power of wind turbine units and the diameters of corresponding large-diameter single piles are continuously increased. The pile stabilizing and positioning platform is commonly used for controlling the verticality in the pile sinking construction process and has certain deviation rectifying capability. In the construction process, firstly, a hoisting machine lifts a large-diameter single pile to a mounting position, a pile embracing frame penetrating through a pile stabilizing platform is lowered, then a pile body is sunk into a seabed by a pile driving hammer, and meanwhile, the perpendicularity of the pile body is ensured by the pile stabilizing platform. The traditional fixed pile stabilizing and positioning platform mostly adopts four positioning piles to be fixed on the sea level, the length of the positioning piles is further increased in a deep sea area, the stability of the pile stabilizing platform is insufficient, enough horizontal reaction force cannot be provided in the construction process for pile sinking rectification, and meanwhile, the overturning danger exists; in addition, a large amount of operation time is consumed for inserting and pulling out the positioning pile of the pile stabilizing platform, so that the maneuverability of pile sinking operation is insufficient, the requirement on the window period of offshore operation is high, and the working efficiency is low. Therefore, the structure and the process of the pile stabilizing platform for traditional pile sinking construction are improved, and the method has important engineering practical significance for large-scale development of deep sea wind power plants in China.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steady stake platform of showy formula based on anchoring positioning control to the problem that above-mentioned exists.
To this end, the above object of the present invention is achieved by the following technical solutions:
a floating pile-stabilizing platform device based on anchoring positioning control comprises a pile holding frame, a floating platform, an anchoring system and a monitoring system;
the pile embracing frame is used for fixing large-diameter single piles in the construction process, the pile embracing frame is a steel structure truss, the pile embracing frame is provided with a hoop and a jack, the pile embracing frame and the hoop are arranged to be matched with the outer diameter of a pile body of the large-diameter single pile so as to ensure that the upper end of the pile body of the large-diameter single pile in the construction process is in cooperative motion with the floating type platform, the lower part of the pile embracing frame is fixed on a platform deck of the floating type platform, the inner side of the pile embracing frame is hollow to form a pile feeding port, and a plurality of flexible hoops and corresponding jacks are arranged on the inner side of the pile embracing frame so as to adapt to the;
the floating platform comprises: the floating type platform is used for fixing and transporting a pile holding frame and a large-diameter single pile, a moon pool for the large-diameter single pile to penetrate through is arranged in the center of the platform deck, the floating drum for providing buoyancy for the floating type platform is arranged below the platform deck, and the support rod is used for connecting and fixing the floating drum to ensure the structural safety under the horizontal deviation rectifying force;
the mooring system comprises: the anchoring system is used for positioning the floating platform and providing horizontal counter force required for adjusting the verticality of the large-diameter single-pile body; the upper end of the anchor chain is connected with an anchor machine, the middle of the anchor chain is adjusted, fixed and lowered to the seabed through a cable guide device, the lower end of the anchor chain is connected with an anchor body, the anchor machine is controlled hydraulically, and the tensioning and loosening of the anchor chain are controlled through a winch, so that the tension of the anchor chain is changed to adjust the displacement of the floating platform and the large-diameter single pile inside the floating platform;
the monitoring system includes: the device comprises an inclinometer, a laser inclinometer and a data acquisition instrument, wherein the inclinometer is arranged on the outer side of a large-diameter single pile and used for monitoring the verticality of a large-diameter single pile body in the pile sinking process, the laser inclinometer is arranged on a pile holding frame and used for monitoring the relative inclination angle between the pile holding frame and the large-diameter single pile body, and the data acquisition instrument is used for acquiring the inclinometer, the data acquired by the laser inclinometer and the twisting tension data of each anchor machine.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt following technical scheme:
as the utility model discloses a preferred technical scheme: and a ballast tank and a ballast water pump are arranged in the buoy so as to adjust the draft of the floating platform and the elevation of a platform deck under different working conditions.
As the utility model discloses a preferred technical scheme: and the data acquisition instrument is connected with the remote transmission data acquisition instrument so as to realize remote monitoring control of the pile stabilizing and sinking process.
The utility model provides a float steady pile platform device of formula based on anchoring positioning control has following beneficial effect:
(1) the hydraulic anchor machine winches the anchor chain, so that huge horizontal counter force can be provided for the centralization of the large-diameter single pile, and the direction is easy to control, so that the effect of active control is achieved, and the passive control of the traditional fixed pile-stabilizing platform is overcome;
(2) the floating platform moves through towing and is positioned by the anchoring system, and compared with a fixed platform, the floating platform needs to be driven into a positioning pile, so that the offshore operation has stronger maneuverability;
(3) the floating platform is suitable for various water depths, the draft of the floating platform can be changed by adjusting the ballast water amount in the buoy under different working conditions, and the floating platform has better stability particularly in deep sea areas and ensures the safety of offshore construction.
Drawings
Fig. 1 is an overall layout diagram of a floating pile-stabilizing platform based on anchoring and positioning control according to the present invention;
fig. 2 is a front view of the floating pile-stabilizing platform based on anchoring and positioning control provided by the present invention;
fig. 3 is a top view of the floating pile-stabilizing platform based on anchoring and positioning control provided by the present invention;
FIG. 4 is a layout of a monitoring system;
FIG. 5 is a layout of the mooring system;
in the figure: 1-pile holding frame; 2-hoop holding; 3-a jack; 4-large diameter single pile; 5, a pile hammer; 6-platform deck; 7-an anchor machine; 8-an anchor chain; 9-a cable guide; 10-an anchor body; 11-a buoy; 12-ballast tank; 13-a ballast pump; 14-a strut; 15-an inclinometer; 16-laser inclinometer; 17-data acquisition instrument.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiment is used for controlling the verticality of the large-diameter single pile in the pile sinking construction process, and is shown in figures 1-5. The large-diameter single pile 4 is lifted and lowered down, and the pile bottom of the large-diameter single pile is sunk below the surface of the sea bed from top to bottom through a moon pool which embraces the inner space of the pile frame 1 and the center of the platform deck 6, so that the arrangement before pile sinking is completed. When pile sinking construction is carried out, a hydraulic or static pressure pile driving hammer 5 is installed at the top of the large-diameter single pile 4, and the large-diameter single pile 4 is gradually hammered to sink into the seabed. The verticality and the inclination of the large-diameter single pile 4 pile body are monitored in real time through an inclinometer 15 and an inclinometer 16 which are arranged on the large-diameter single pile 4 pile body.
According to the catenary equation theory, the horizontal reaction force H provided by a single anchor chain can be described as:
V＝wL (3)
wherein: l is the length of the anchor chain, w is the unit length buoyancy of the anchor chain, AE represents the unit length rigidity of the anchor chain, X is the horizontal distance between the cable guide and the seabed bottom contact point, and T is the anchor chain tension at the cable guide position, so that the anchor chain is stranded and pulled through the anchor machine, the length L is reduced, and the horizontal counter force H is correspondingly increased; in a similar way, the anchor chain is loosened, the length L is increased, and the horizontal counter force H is correspondingly reduced.
When the inclination meter 15 and the inclinometer 16 measure that the large-diameter single pile 4 inclines to one side in the construction process, horizontal counter force can be applied through twisting and pulling of the anchor machine 7, the floating platform is enabled to translate in the opposite direction, and the perpendicularity of the large-diameter single pile 4 is adjusted through the pile holding frame 1. For example, when the large-diameter single pile 4 inclines to the northwest side, the anchor machine 7-1 on the northwest side is controlled to loosen the anchor chain 8-1, and the horizontal counter force of the anchor chain on the northwest side is reduced; and meanwhile, the anchor machine 7-3 on the south-east side is controlled to wink and pull the anchor chain 8-3, and the horizontal counter force on the south-east side is increased, so that the pile stabilizing platform drives the pile body of the large-diameter single pile to deviate towards the south-east side, and the effect of adjusting the verticality is achieved. After pile sinking construction is finished, ballast water in a ballast tank 12 is removed by a ballast pump 13, a platform deck 6 of the floating type stable pile is lifted to be above the top end of the large-diameter single pile 4, and the floating type stable pile is dispatched to the next construction position for operation through towing.
Embrace pile frame 1 and be space steel truss structure, the lower extreme is fixed in the platform deck 6 of steady pile platform, and 4 layers of staple bolts have been arranged along the vertical direction to steel truss structure space inboard, and every layer includes flexible construction staple bolt section of jurisdiction and corresponds jack 3, for regular octagon central symmetry arrangement, the space that staple bolt 2 formed and the external diameter phase-match of major diameter single pile, and have the regulating power of certain limit. When the pile stabilizing platform works, the anchor ear 2 is connected with the outer side of the large-diameter single pile 4 through the horizontal jacking jack 3, and the pile body of the fixed large-diameter single pile and the pile stabilizing platform move together.
The floating platform comprises a platform deck 6, a buoy 11 and a support rod 14, wherein a pile holding frame 1 and an anchor machine 7 are fixed on the platform deck 6, and the platform deck 6 is hollow to form a moon pool serving as a pile feeding port. A ballast tank 12 and a ballast pump 13 are arranged in the buoy 11, and the draft and the platform deck elevation of the pile-stabilizing platform can be changed by adjusting the capacity of ballast water so as to adapt to different working conditions, such as increasing the ballast water during pile driving operation and improving the stability of the platform; ballast water is reduced during dispatching, so that the platform is convenient to move.
As shown in fig. 3, the mooring system consists of anchor machines 7 arranged at the four corners of the platform deck 6, anchor chains 8, fairleads 9 and anchor bodies 10, the arrangement of the anchor chains 8 being shown in fig. 5 symmetrically arranged at 45 degrees. The anchoring system has the functions of positioning and providing horizontal restoring force, and the horizontal counter force provided by the anchoring system can be adjusted by winching and releasing the anchor chains 8, so that the pile stabilizing platform and the pile body move. The control of the anchor machine 7 is integrated into the control platform, which can be controlled via a wireless network or by an umbilical on the pile driving vessel.
As shown in fig. 4, the monitoring system comprises an inclinometer 15 arranged on the pile body of the large-diameter single pile 4, a laser inclinometer 16 arranged on the pile holding frame 1, and a data acquisition instrument 17. The inclinometer 15 and the laser inclinometer 16 are used for measuring the verticality and the inclination of the large-diameter single pile 4, and are converted into digital signals through the data acquisition instrument 17 for monitoring. Meanwhile, the tension change of the anchor chain 8 twisted and pulled by the anchor machine 7 can be synchronously recorded through the data acquisition instrument 17, so that the control and the adjustment are convenient. The acquired digital signals can be transmitted to the piling ship by wireless or wired transmission, so that the remote control is facilitated.
The above embodiments are merely preferred technical solutions of the present invention, and it should be understood by those skilled in the art that modifications or substitutions of technical solutions or parameters in the embodiments can be made without departing from the principles and essential conditions of the present invention, and all the modifications or substitutions should be covered within the protection scope of the present invention.
Claims (3)
1. The utility model provides a float steady stake platform device of formula based on anchoring positioning control which characterized in that: the floating pile stabilizing platform device based on anchoring positioning control comprises a pile embracing frame, a floating platform, an anchoring system and a monitoring system;
the pile embracing frame is used for fixing large-diameter single piles in the construction process, the pile embracing frame is a steel structure truss, the pile embracing frame is provided with a hoop and a jack, the pile embracing frame and the hoop are arranged to be matched with the outer diameter of a pile body of the large-diameter single pile so as to ensure that the upper end of the pile body of the large-diameter single pile in the construction process is in cooperative motion with the floating type platform, the lower part of the pile embracing frame is fixed on a platform deck of the floating type platform, the inner side of the pile embracing frame is hollow to form a pile feeding port, and a plurality of flexible hoops and corresponding jacks are arranged on the inner side of the pile embracing frame so as to adapt to the;
the floating platform comprises: the floating type platform is used for fixing and transporting a pile holding frame and a large-diameter single pile, a moon pool for the large-diameter single pile to penetrate through is arranged in the center of the platform deck, the floating drum for providing buoyancy for the floating type platform is arranged below the platform deck, and the support rod is used for connecting and fixing the floating drum to ensure the structural safety under the horizontal deviation rectifying force;
the mooring system comprises: the anchoring system is used for positioning the floating platform and providing horizontal counter force required for adjusting the verticality of the large-diameter single-pile body; the upper end of the anchor chain is connected with an anchor machine, the middle of the anchor chain is adjusted, fixed and lowered to the seabed through a cable guide device, the lower end of the anchor chain is connected with an anchor body, the anchor machine is controlled hydraulically, and the tensioning and loosening of the anchor chain are controlled through a winch, so that the tension of the anchor chain is changed to adjust the displacement of the floating platform and the large-diameter single pile inside the floating platform;
the monitoring system includes: the device comprises an inclinometer, a laser inclinometer and a data acquisition instrument, wherein the inclinometer is arranged on the outer side of a large-diameter single pile and used for monitoring the verticality of a large-diameter single pile body in the pile sinking process, the laser inclinometer is arranged on a pile holding frame and used for monitoring the relative inclination angle between the pile holding frame and the large-diameter single pile body, and the data acquisition instrument is used for acquiring the inclinometer, the data acquired by the laser inclinometer and the twisting tension data of each anchor machine.
2. The floating pile-stabilizing platform assembly based on mooring positioning control as claimed in claim 1, wherein: and a ballast tank and a ballast water pump are arranged in the buoy so as to adjust the draft of the floating platform and the elevation of a platform deck under different working conditions.
3. The floating pile-stabilizing platform assembly based on mooring positioning control as claimed in claim 1, wherein: and the data acquisition instrument is connected with the remote transmission data acquisition instrument so as to realize remote monitoring control of the pile stabilizing and sinking process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921975809.0U CN211773660U (en) | 2019-11-15 | 2019-11-15 | Floating pile-stabilizing platform device based on anchoring positioning control |
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| CN201921975809.0U CN211773660U (en) | 2019-11-15 | 2019-11-15 | Floating pile-stabilizing platform device based on anchoring positioning control |
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| CN211773660U true CN211773660U (en) | 2020-10-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113212678A (en) * | 2021-05-24 | 2021-08-06 | 中国电建集团华东勘测设计研究院有限公司 | Active-passive combined control system of floating offshore wind power structure and implementation method |
| CN113955015A (en) * | 2021-11-19 | 2022-01-21 | 中国海洋石油集团有限公司 | Anchor chain wheel sea fixing method and sea fixing mechanism |
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2019
- 2019-11-15 CN CN201921975809.0U patent/CN211773660U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113212678A (en) * | 2021-05-24 | 2021-08-06 | 中国电建集团华东勘测设计研究院有限公司 | Active-passive combined control system of floating offshore wind power structure and implementation method |
| CN113212678B (en) * | 2021-05-24 | 2022-11-29 | 中国电建集团华东勘测设计研究院有限公司 | Active-passive combined control system of floating offshore wind power structure and implementation method |
| CN113955015A (en) * | 2021-11-19 | 2022-01-21 | 中国海洋石油集团有限公司 | Anchor chain wheel sea fixing method and sea fixing mechanism |
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