CN114482116B - Offshore wind power high pile cap foundation with damper and connecting piece combined and construction method - Google Patents
Offshore wind power high pile cap foundation with damper and connecting piece combined and construction method Download PDFInfo
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- CN114482116B CN114482116B CN202210092504.5A CN202210092504A CN114482116B CN 114482116 B CN114482116 B CN 114482116B CN 202210092504 A CN202210092504 A CN 202210092504A CN 114482116 B CN114482116 B CN 114482116B
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- 238000010276 construction Methods 0.000 title claims description 11
- 230000007704 transition Effects 0.000 claims abstract description 70
- 239000004567 concrete Substances 0.000 claims abstract description 51
- 238000013016 damping Methods 0.000 claims abstract description 30
- 238000000429 assembly Methods 0.000 claims abstract description 3
- 230000000712 assembly Effects 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 5
- 241000282326 Felis catus Species 0.000 claims description 4
- 230000009193 crawling Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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Abstract
The invention discloses an offshore wind power high pile cap foundation with a damper and connecting pieces combined, which comprises a plurality of pile foundations, wherein the top ends of the pile foundations are provided with a transition Duan Datong of a fan, the top ends of the pile foundations are provided with connecting pieces, the top ends of the pile foundations surround the transition Duan Datong for one circle, a concrete cap is poured on the top ends of the pile foundations, mounting channels are reserved in the concrete cap at corresponding positions between the connecting pieces and the outer side wall of the transition Duan Datong respectively, and damping assemblies respectively connected with the connecting pieces and the outer side wall of the transition Duan Datong are arranged in the mounting channels. The invention can ensure good stress effect of the offshore wind power high-pile cap foundation, effectively improve the anti-seismic performance of the fan foundation, and effectively resist earthquake load and accidental loads such as typhoon and collision, thereby further improving the reliability of the offshore wind power high-pile cap foundation.
Description
Technical Field
The invention belongs to the technical field of offshore wind power engineering, and particularly relates to an offshore wind power high pile cap foundation combined by a damper and a connecting piece and a construction method.
Background
Along with the continuous development and progress of the offshore wind power technology, a large number of foundation types of the offshore wind power units emerge, but the high-pile cap is still the lower foundation type of the offshore wind power units with the main soft soil covering layer sites in China. The fan transition Duan Datong of the high pile cap foundation is generally connected with the pile foundation through steel connecting pieces, so that the structural integrity is enhanced and the stress condition of the reinforced concrete cap is effectively improved while the structural integrity and stability are guaranteed to be good.
The offshore wind turbine is high in structure, slender in size, light in weight, and is a typical anti-seismic unfavorable structural form, and the problem of basic overall power of the offshore wind turbine is more and more obvious along with the increase of construction water depth and the increasing application of large megawatt models. From the current established and approved offshore wind projects and future offshore wind planning, a large proportion of offshore wind sites are located just near the coastal seismic zone, and development of offshore wind foundation anti-seismic design research is urgent.
The theories and experiments of the offshore wind power foundation earthquake-resistant field are more studied by students at home and abroad, and more focuses on foundation soil, however, the research on the offshore wind power foundation earthquake-resistant structure is less.
The installation and maintenance convenience of the offshore wind power foundation damping device and the reliability of the damping effect are key technical problems to be solved urgently in the field of industry.
Disclosure of Invention
The invention provides an offshore wind power high-pile cap foundation combined by a damper and a connecting piece and a construction method thereof, which are used for effectively improving the anti-seismic performance of a fan foundation while ensuring a good stress effect of the offshore wind power high-pile cap foundation.
The technical scheme adopted for solving the technical problems is as follows:
the offshore wind power high pile cap foundation with the damper and the connecting piece combined comprises a plurality of pile foundations, a plurality of transition Duan Datong for installing fans at the top ends of the pile foundations, connecting pieces are arranged at the top ends of the pile foundations, a plurality of pile foundation tops surround the transition Duan Datong for one week, a concrete cap is poured on the top ends of the pile foundations, installation channels are reserved in the concrete cap at corresponding positions between the connecting pieces and the outer side walls of the transition Duan Datong respectively, and damping assemblies respectively connected with the connecting pieces and the outer side walls of the transition Duan Datong are arranged in the installation channels.
Further, the top end of the pile foundation is provided with a groove, and the bottom end of each connecting piece is inserted into the corresponding groove of the pile foundation and welded and fixed.
Further, the damping assembly comprises a plurality of horizontal dampers, and the dampers are arranged between the connecting piece and the outer side wall of the transition Duan Datong from top to bottom in parallel.
Further, two ends of the damper are fixedly connected with the connecting piece and the outer side wall of the transition Duan Datong through pin bosses, two parallel vertical webs are fixed on the outer side face of each pin boss, a limiting plate is fixed between the lower portions of the two webs, pin heads are respectively arranged at two ends of the damper, and the pin heads are connected with the two webs through pin shafts.
Further, the installation passageway diapire is by being close to one side to the opposite side downward sloping setting of transition Duan Datong, in the concrete cushion cap each the installation passageway diapire is kept away from the position of transition Duan Datong reserves drainage pipe, the installation passageway lateral wall still is equipped with the cat ladder, installation passageway top end opening just is equipped with the apron.
Further, the damper is a viscous damper or a friction damper, and a monitoring system is arranged on the damper.
Further, bottom sealing concrete is poured at the top ends of the pile foundations, the transition Duan Datong is installed in the middle of the top surface of the bottom sealing concrete, and the concrete bearing platform is poured on the top surface of the bottom sealing concrete.
A construction method of an offshore wind power high pile cap foundation with a damper and a connecting piece combined comprises the following steps:
s1, constructing a plurality of pile foundations;
s2, installing the transition Duan Datong on the top ends of a plurality of pile foundations;
s3, installing each connecting piece on the top end of the corresponding pile foundation;
s4, pouring the concrete bearing platform at the top end of the pile foundation, and reserving a plurality of mounting channels in the concrete bearing platform;
and S5, installing the damping assembly between the connecting piece and the outer side wall of the transition Duan Datong in each installation channel.
Further, the method comprises the steps of,
the step S1 is preceded by the following steps: welding a plurality of pin bosses on one side of each damping component on the corresponding connecting piece from top to bottom;
in step S2: welding a plurality of pin bosses on the other side of each damping component at corresponding positions of the outer wall of the transition Duan Datong from top to bottom, forming pin boss groups by the pin bosses on the other side of the damping component, circumferentially and uniformly distributing a plurality of pin boss groups on the tower drum of the transition section, pouring back cover concrete at the top ends of a plurality of pile foundations, and mounting the transition Duan Datong in the middle of the top surface of the back cover concrete, so that each pin boss group on the outer wall of the transition Duan Datong corresponds to the central position of the top end of the corresponding pile foundation;
in step S3: and inserting the bottom end of each connecting piece into the groove of the corresponding pile foundation and welding.
Further, the method comprises the steps of,
in step S4: pouring the concrete bearing platform around the transition Duan Datong for one circle on the top surface of the back cover concrete, reserving a plurality of installation channels in the concrete bearing platform, reserving drainage pipelines at the positions, far away from the transition Duan Datong, of the bottom wall of each installation channel in the concrete bearing platform, and installing a crawling ladder on the side wall of each installation channel;
in step S5: the constructor moves into the installation channel through the ladder stand, the ropes of the hoisting mechanism penetrate through the pin heads at the two ends of the corresponding damper of the damping component, the pin heads at the two ends are sunk onto the limiting plates at the bottoms of the corresponding pin seats, and the pin shafts are inserted into the corresponding two webs and the pin heads, so that the damping components are installed in the mode.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to an offshore wind power high pile cap with a damper and connecting piece combination, which comprises a plurality of pile foundations, wherein the top ends of the pile foundations are provided with a transition Duan Datong of a fan, the top ends of the pile foundations are provided with connecting pieces, the top ends of the pile foundations surround a transition section tower barrel to pour a concrete cap, mounting channels are reserved in the concrete cap at corresponding positions between the connecting pieces and the outer side wall of the transition Duan Datong respectively, and damping components respectively connected with the connecting pieces and the outer side wall of the transition Duan Datong are arranged in the mounting channels; the pile foundation is connected with the concrete pile cap through the connecting piece, and the connecting piece is connected with the transition Duan Datong through the damping component.
In the invention, the top end of the pile foundation column is provided with a groove, and the bottom ends of the connecting pieces are inserted into the grooves of the corresponding pile foundation columns and welded and fixed; thus, the stability of the connection between the connecting piece and the pile foundation column can be improved.
In the invention, the damping component comprises a plurality of horizontal dampers, and the plurality of dampers are arranged between the connecting piece and the outer side wall of the transition Duan Datong from top to bottom in parallel; thus, the single connecting piece is connected with the transition Duan Datong through the dampers, and the integral stability of the structure during maintenance and replacement of the single damper is guaranteed.
According to the invention, two ends of a damper are fixedly connected with a connecting piece and the outer side wall of a transition Duan Datong through pin bosses, two parallel vertical webs are fixed on the outer side surface of each pin boss, a limiting plate is fixed between the lower parts of the two webs, pin heads are respectively arranged at two ends of the damper, and the pin heads are connected with the two webs through pin shafts; the setting of limiting plate is favorable to the accurate location in the attenuator installation.
In the invention, the bottom walls of the mounting channels are arranged in a downward inclined way from one side close to the tower drum of the transition section to the other side, and drainage pipelines are reserved at the positions of the bottom walls of the mounting channels far away from the tower drum of the transition section in the concrete bearing platform; thus, the leaked solution can be timely discharged when the inside of the rainwater and the damper is damaged.
According to the invention, the top end of the installation channel is opened and the cover plate is arranged, so that the damper and the fixing structure thereof have good corrosion resistance in the non-installation replacement period.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a marine wind power high pile cap combined by a damper and a connecting piece;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a schematic perspective view of a concrete platform;
FIG. 4 is a schematic top view of FIG. 3;
FIG. 5 is a schematic view of a partial perspective view of the damper and connector assembly of FIG. 1;
FIG. 6 is a schematic view of the damper connection structure of FIG. 5;
fig. 7 is a schematic diagram of the explosive structure of fig. 6.
The reference numerals in the drawings illustrate: 1. pile foundation, 2, transition Duan Datong, 3, concrete bearing platform, 4, connecting piece, 5, damper, 6, web, 7, pin base, 8, limiting plate, 9, pin head, 10, pin shaft, 11, pin cap, 12, drainage pipeline, 13, installation channel, 14, cat ladder, 15, cover plate, 16 and back cover concrete.
Description of the embodiments
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to be limiting.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1-4, an offshore wind power high pile cap foundation with a damper and a connecting piece combined comprises a plurality of pile foundations 1 which are inclined inwards, wherein the stability of the pile foundations 1 can be improved by the inwards inclination of the pile foundations 1, the top centers and the bottom centers of the pile foundations 1 are all in same circle distribution, the distances between the adjacent pile foundations 1 are equal, the bottom ends of the pile foundations 1 are arranged on the sea floor by adopting a submarine immersed tube technology, the top ends of the pile foundations 1 extend out of the sea surface, bottom sealing concrete 16 is poured at the top ends of the pile foundations 1, a transition Duan Datong 2 of a fan is arranged in the middle of the top surface of the bottom sealing concrete 16, a tower barrel for installing a wind generating set, the axis of the transition section tower barrel 2 penetrates through the circle center of the circle where the top center connecting line of the pile foundations 1 is located, the connecting piece 4 is arranged at the top end of each pile foundation 1, a circle of the transition section tower barrel 2 is poured with a concrete cap 3, installation channels 13 are reserved in the concrete cap 3 at corresponding positions between each connecting piece 4 and the outer side wall of the transition section tower barrel 2, and damping components connected with the outer side wall of the transition section 2 respectively are arranged in each installation channel 13.
In the invention, the pile foundation 1 is connected with the concrete bearing platform 3 through the connecting piece 4, and the connecting piece 4 is connected with the transition section tower drum 2 through the damping component, and the damping component is combined with the connecting piece 4, so that the good stress characteristics of the high-pile bearing platform foundation are ensured, meanwhile, the earthquake load, typhoon, collision and other accidental loads can be effectively resisted, and the reliability of the offshore wind power high-pile bearing platform foundation is further improved.
The top end of the pile foundation 1 is provided with a groove, and the bottom ends of the connecting pieces 4 are inserted into the grooves of the corresponding pile foundation 1 and are welded and fixed, so that the stability of connection between the connecting pieces and the pile foundation column can be improved.
Wherein, as shown in fig. 1, 2 and 5, the damping assembly comprises a plurality of horizontal dampers 5, and a plurality of dampers 5 are arranged side by side from top to bottom between the connecting piece 4 and the outer side wall of the transition section tower 2. Therefore, the single connecting piece 4 is connected with the transition section tower drum 2 through the dampers 5, and the integral stability of the structure during maintenance and replacement of the single damper 5 is guaranteed. And a plurality of dampers 5 are arranged between the connecting piece 4 and the outer side wall of the transition section tower drum 2 and are used for reducing the relative displacement of the offshore wind power high-pile cap pile foundation 1 and the transition section tower drum 2, namely, when the offshore wind power foundation encounters accidental loads such as earthquakes and collisions and constant loads such as wave currents, the dampers 5 can weaken the direct impact of the high-pile cap pile foundation 1 on the transition section tower drum 2 and reduce the capsizing acceleration, so that the stable operation of the upper wind turbine generator is ensured.
As shown in fig. 1, 5, 6 and 7, two ends of a damper 5 are fixedly connected with the connecting piece 4 and the outer side wall of the transition section tower drum 2 through pin bosses 7, two parallel vertical webs 6 are fixed on the outer side surfaces of the pin bosses 7, a limiting plate 8 is fixed between the lower parts of the two webs 6, pin heads 9 are respectively arranged at two ends of the damper 5, the pin heads 9 are connected with the two webs 6 through pin shafts 10, and pin caps 11 are screwed at two ends of the pin shafts 10. The arrangement of the limiting plate 8 is favorable for accurate positioning in the installation process of the damper 5.
As shown in fig. 3 and 4, the installation channels 13 are cuboid, the bottom walls of the installation channels 13 are arranged from one side close to the transition section tower 2 to the other side in a downward inclined manner, and drainage pipelines 12 are reserved in the positions, away from the transition section tower 2, of the bottom walls of the installation channels 13 in the concrete bearing platform 3, so that rainwater and leaked solution in the damper 5 when the inside is damaged can be timely discharged; the mounting channel 13 lateral wall still is equipped with cat ladder 14, and mounting channel 13 open-ended just is equipped with apron 15, and the setting of apron 15 makes attenuator 5 and its fixed knot constructs have good anticorrosion in the non-installation change period.
The damper 5 is a viscous damper 5 or a friction damper 5, a monitoring system is arranged on the damper 5, and the monitoring system arranged on the damper 5 can be incorporated into a monitoring body system of the whole offshore wind power structure, so that the operation and maintenance cost of the whole wind power structure is saved.
The construction method of the offshore wind power high pile cap foundation with the damper and connecting piece combined comprises the following steps:
s1, welding a plurality of pin bosses 7 on one side of each damping component on corresponding connecting pieces 4 from top to bottom on land, and welding and assembling the connecting pieces 4 with the pin bosses 7;
s2, pile foundation 1 is sunk, and the pile top end extends out of the sea surface, so that construction of each pile foundation 1 is completed;
s3, welding a plurality of pin bosses 7 on the other side of each damping component at corresponding positions of the outer wall of the transition section tower barrel 2 from top to bottom, forming pin boss groups by the plurality of pin bosses 7 on the other side of the damping component, circumferentially and uniformly distributing the pin boss groups on the transition section tower barrel 2, pouring back cover concrete 16 at the top ends of the pile foundations 1, and installing the transition section tower barrel 2 in the middle of the top surface of the back cover concrete 16, so that each pin boss group on the outer wall of the transition section tower barrel 2 corresponds to the central position of the top end of the corresponding pile foundation 1;
and S4, inserting the bottom ends of the connecting pieces 4 into the grooves of the corresponding pile foundations 1 and welding.
S5, casting a concrete bearing platform 3 around the transition section tower drum 2 on the top surface of the bottom sealing concrete 16, reserving a plurality of mounting channels 13 in the concrete bearing platform 3, reserving drainage pipelines 12 at positions, far away from the transition section tower drum 2, of the bottom wall of each mounting channel 13 in the concrete bearing platform 3, and mounting a crawling ladder 14 on the side wall of each mounting channel 13;
s6, a constructor moves into the installation channel 13 through the ladder stand 14, a rope of the hoisting mechanism passes through the pin heads 9 at two ends of the damper 5, the pin heads 9 at two ends of the damper 5 are sunk on the limiting plates 8 at the bottoms of the corresponding pin seats 7, the constructor inserts the pin shafts 10 into the corresponding two webs 6 and the pin heads 9 and tightens the pin caps 11, the constructor climbs out of the installation channel 13 through the ladder stand 14, and the top end of the installation channel 13 is covered with the cover plate 15, so that each damping component is installed.
The damper 5 is combined with the connecting piece 4, so that good stress characteristics of the high-pile-cap foundation are ensured, and meanwhile, accidental loads such as earthquake loads, typhoons and collisions can be effectively resisted, and the reliability of the offshore wind power high-pile-cap foundation is further improved.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (5)
1. The utility model provides a high pile cap foundation of marine wind power of attenuator and connecting piece combination, includes a plurality of pile foundations (1), a plurality of transition Duan Datong (2) of fan, its characterized in that are installed on pile foundation (1) top: the top end of each pile foundation (1) is provided with a connecting piece (4), the top end of each pile foundation (1) is provided with a groove, the bottom ends of the connecting pieces (4) are inserted into the grooves of the corresponding pile foundations (1) and are welded and fixed, a plurality of pile foundations (1) are poured with a concrete bearing platform (3) around the transition Duan Datong (2) for a circle, mounting channels (13) are reserved in the concrete bearing platform (3) at corresponding positions between the connecting pieces (4) and the outer side walls of the transition Duan Datong (2) respectively, and damping assemblies respectively connected with the connecting pieces (4) and the outer side walls of the transition Duan Datong (2) are arranged in each mounting channel (13);
the top ends of the pile foundations (1) are poured with bottom sealing concrete (16), the transition Duan Datong (2) is installed in the middle of the top surface of the bottom sealing concrete (16), and the concrete bearing platform (3) is poured on the top surface of the bottom sealing concrete (16);
the damping assembly comprises a plurality of horizontal dampers (5), and the dampers (5) are arranged between the connecting piece (4) and the outer side wall of the transition Duan Datong (2) from top to bottom in parallel;
two ends of the damper (5) are fixedly connected with the outer side walls of the connecting piece (4) and the transition Duan Datong (2) through pin bosses (7), two parallel vertical webs (6) are fixed on the outer side surfaces of the pin bosses (7), a limiting plate (8) is fixed between the lower parts of the two webs (6), pin heads (9) are respectively arranged at two ends of the damper (5), and the pin heads (9) are connected with the two webs (6) through pin shafts (10);
the bottom wall of the installation channel (13) is arranged in a downward inclined mode from one side close to the transition Duan Datong (2) to the other side, a drainage pipeline (12) is reserved in the position, away from the transition Duan Datong (2), of the bottom wall of the installation channel (13) in the concrete bearing platform (3), a crawling ladder (14) is further arranged on the side wall of the installation channel (13), and a cover plate (15) is arranged at the top end opening of the installation channel (13).
2. The offshore wind power high pile cap foundation combined with a damper and a connecting piece according to claim 1, wherein: the damper (5) is a viscous damper (5) or a friction damper (5), and a monitoring system is arranged on the damper (5).
3. A method of constructing an offshore wind power high pile cap foundation comprising a damper according to any one of claims 1-2 in combination with a connector, comprising the steps of:
s1, constructing a plurality of pile foundations (1);
s2, installing the transition Duan Datong (2) at the top ends of a plurality of pile foundations (1);
s3, installing each connecting piece (4) at the top end of the corresponding pile foundation (1);
s4, pouring the concrete bearing platform (3) at the top end of the pile foundation (1), and reserving a plurality of mounting channels (13) in the concrete bearing platform (3);
s5, the damping assembly is installed between the connecting piece (4) and the outer side wall of the transition Duan Datong (2) in each installation channel (13).
4. The construction method of the offshore wind power high pile cap foundation combined by the damper and the connecting piece according to claim 3, wherein the construction method comprises the following steps:
the step S1 is preceded by the following steps: welding a plurality of pin bosses (7) on one side of each damping assembly on the corresponding connecting piece (4) from top to bottom;
in step S2: welding a plurality of pin bosses (7) on the other side of each damping component on corresponding positions of the outer wall of the transition Duan Datong (2) from top to bottom, forming pin boss groups by the pin bosses (7) on the other side of each damping component, circumferentially and uniformly distributing a plurality of pin boss groups on the transition Duan Datong (2), pouring back cover concrete (16) at the top ends of a plurality of pile foundations (1), and mounting the transition Duan Datong (2) in the middle of the top surface of the back cover concrete (16) so that each pin boss group on the outer wall of the transition Duan Datong (2) corresponds to the central position of the top end of the corresponding pile foundation (1);
in step S3: and inserting the bottom end of each connecting piece (4) into the groove of the corresponding pile foundation (1) and welding.
5. The construction method of the offshore wind power high pile cap foundation combined by the damper and the connecting piece, which is characterized by comprising the following steps of:
in step S4: pouring the concrete bearing platform (3) around the transition Duan Datong (2) on the top surface of the bottom-sealing concrete (16), reserving a plurality of installation channels (13) in the concrete bearing platform (3), reserving drainage pipelines (12) in the concrete bearing platform (3) at positions, far away from the transition Duan Datong (2), of the bottom wall of each installation channel (13), and installing a crawling ladder (14) on the side wall of each installation channel (13);
in step S5: the constructor moves into the installation channel (13) through the cat ladder (14), adopts the hoisting mechanism rope to pass through the pin heads (9) at two ends of the corresponding damper (5) of the damping component, and sinks the pin heads (9) at two ends onto the limiting plates (8) at the bottoms of the corresponding pin seats (7), inserts the pin shafts (10) into the corresponding two webs (6) and the pin heads (9), and installs each damping component in the mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210092504.5A CN114482116B (en) | 2022-01-26 | 2022-01-26 | Offshore wind power high pile cap foundation with damper and connecting piece combined and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210092504.5A CN114482116B (en) | 2022-01-26 | 2022-01-26 | Offshore wind power high pile cap foundation with damper and connecting piece combined and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114482116A CN114482116A (en) | 2022-05-13 |
| CN114482116B true CN114482116B (en) | 2024-03-22 |
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|---|---|---|---|
| CN202210092504.5A Active CN114482116B (en) | 2022-01-26 | 2022-01-26 | Offshore wind power high pile cap foundation with damper and connecting piece combined and construction method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5775038A (en) * | 1996-12-20 | 1998-07-07 | J. Muller International | Fixed point seismic buffer system |
| CN201713827U (en) * | 2010-05-20 | 2011-01-19 | 上海勘测设计研究院 | Fan base structure of offshore wind power station |
| CN101967833A (en) * | 2009-07-27 | 2011-02-09 | 上海勘测设计研究院 | multi-pile bearing platform foundation based connecting structure between fan tower drum and pile foundation |
| CN101968039A (en) * | 2009-07-27 | 2011-02-09 | 上海勘测设计研究院 | Connecting structure between fan tower cylinder and pile foundation |
| CN107630791A (en) * | 2017-09-30 | 2018-01-26 | 广东工业大学 | Offshore wind farm pile foundation |
| CN112709263A (en) * | 2021-01-11 | 2021-04-27 | 中国长江三峡集团有限公司 | Limiting seismic mitigation and isolation system and method |
-
2022
- 2022-01-26 CN CN202210092504.5A patent/CN114482116B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5775038A (en) * | 1996-12-20 | 1998-07-07 | J. Muller International | Fixed point seismic buffer system |
| CN101967833A (en) * | 2009-07-27 | 2011-02-09 | 上海勘测设计研究院 | multi-pile bearing platform foundation based connecting structure between fan tower drum and pile foundation |
| CN101968039A (en) * | 2009-07-27 | 2011-02-09 | 上海勘测设计研究院 | Connecting structure between fan tower cylinder and pile foundation |
| CN201713827U (en) * | 2010-05-20 | 2011-01-19 | 上海勘测设计研究院 | Fan base structure of offshore wind power station |
| CN107630791A (en) * | 2017-09-30 | 2018-01-26 | 广东工业大学 | Offshore wind farm pile foundation |
| CN112709263A (en) * | 2021-01-11 | 2021-04-27 | 中国长江三峡集团有限公司 | Limiting seismic mitigation and isolation system and method |
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| CN114482116A (en) | 2022-05-13 |
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