CN108571425A - A kind of offshore wind turbine pile foundation support table basis and its construction method - Google Patents
A kind of offshore wind turbine pile foundation support table basis and its construction method Download PDFInfo
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- CN108571425A CN108571425A CN201810622174.XA CN201810622174A CN108571425A CN 108571425 A CN108571425 A CN 108571425A CN 201810622174 A CN201810622174 A CN 201810622174A CN 108571425 A CN108571425 A CN 108571425A
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- pipe pile
- pile
- truss
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- 238000010276 construction Methods 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 238
- 239000010959 steel Substances 0.000 claims abstract description 238
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims description 23
- 239000007924 injection Substances 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000011440 grout Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Foundations (AREA)
Abstract
The invention discloses a kind of offshore wind turbine pile foundation support table bases, it includes steel-pipe pile and steel cushion cap, steel cushion cap is equipped with steel cushion cap spud leg in one end of its steel box-girder, steel cushion cap spud leg is socketed in steel-pipe pile, steel-pipe pile positions hammer piling using positioning die carrier, positioning die carrier includes truss support stake, position truss and the double-deck steel bushing, position truss and truss support stake by clad steel sleeve connection together with, each branch outer end center of truss is positioned with the Longkou for accommodating steel-pipe pile, each Longkou is at least provided with upper, lower two layers anchor ear, steel-pipe pile is held tightly and is fixed by stake anchor ear, grouting material is perfused in steel-pipe pile and the annular gap of steel cushion cap spud leg connecting portion to link steel-pipe pile and steel cushion cap spud leg to form an entirety.The steel-pipe pile and steel cushion cap of the present invention can make in steel construction processing factory in advance, and at sea construction site is only driven piles, installed and cementing operations, greatly reduces operation on the sea amount.
Description
Technical field
The present invention relates to hydraulic structure field, especially a kind of offshore wind turbine pile foundation support table basis.
Background technology
Pile foundation is the important structural shape of marine structure, common in foundation of wind-driven generator unit at sea at present to have list
Pile foundation, jacket basis, High-Rise Pile Cap Foundation.
Single-pile foundation belongs to non-space structure since its pile foundation is unique, and acting force arm is small, in order to meet wind power generating set
The load transmitted and the effect of various environmental loads, it is desirable that stake diameter is larger, and stake diameter is generally higher than 7m, to capacity of equipment requirement when construction
Height, difficulty of construction are big.
Jacket frame foundation structure is complicated, and rod node is more, tedious process.Jacket is bulky, and when transport needs larger
Cargo ship.In addition jacket must be attached under water with basic pile foundation, and difficulty of construction is big, and reliability is low.
High-Rise Pile Cap Foundation is common in harbour and pier footing, and cushion cap is mostly monolithic reinforced concrete structure, is limited to sea
Windward electric field region wind and waves, offshore construction efficiency is low, and there are security risks, expensive.In addition reinforced concrete pile cap
Weight is big, overall structure poor seismic behavior.
Invention content
In order to overcome the shortcomings of present technology, present invention offer is a kind of to reduce offshore construction activity duration, building course
Small, the pile foundation support table basis of offshore wind turbine simple in structure and small difficulty of construction is influenced on peripheral region environment.
To achieve the goals above, present invention employs following technical schemes：A kind of offshore wind turbine pile foundation is held
Stylobate plinth, including several steel-pipe piles and a steel cushion cap, if steel cushion cap has a core case and outwardly extending from core case
Dry steel box-girder, core case top are equipped with the ring flange being connect with tower barrel of wind generating set, and every steel box-girder is far from center
One end of babinet is equipped with steel cushion cap spud leg, and steel cushion cap spud leg quantity is consistent with steel-pipe pile quantity and is socketed on corresponding steel-pipe pile
Interior, steel-pipe pile positions hammer piling using positioning die carrier, and the positioning die carrier includes centrally located corresponding with steel cushion cap center
Truss support stake, around outside truss support stake positioning truss and the double-deck steel bushing, the double-deck steel bushing is by coaxial reducing
Interior steel cylinder, outer steel cylinder and head cover constitute, the double-deck steel bushing is fixed together with truss is positioned by node, truss support pile protection
Be connected between the inside and outside steel cylinder of the double-deck steel bushing, positioning truss and truss support stake by clad steel sleeve connection together with, calmly
Position truss extends outward to form evenly spaced multiple branches from the double-deck steel bushing, the position of branch and quantity and steel-pipe pile one
It causes, there is the Longkou for accommodating steel-pipe pile, each Longkou to be embraced at least provided with upper and lower two layers at each branch outer end center
Steel-pipe pile is held tightly and is fixed by hoop, stake anchor ear, and injection material is perfused in steel-pipe pile and the annular gap of steel cushion cap spud leg connecting portion
Material links steel-pipe pile and steel cushion cap spud leg to form an entirety.
The part that steel cushion cap spud leg is connect with steel-pipe pile is located at water surface curve or more.
The stake anchor ear is made of symmetrical movable arm, fixed backrest and holding jack and idler wheel, Gu
Determine backrest to fix relative to positioning truss, fixed backrest is articulated in the middle part of movable arm, the first end of movable arm, which is connected to, embraces
The piston rod overhanging end of tight jack is provided with the idler wheel that can be rolled along steel pipe stake body, holding thousand in movable arm second end
The piston rod on jin top is overhanging or inside contract to both sides respectively from fixed backrest end, when the piston rod for holding jack tightly is in overhanging shape
When state, the second end of movable arm inwardly compresses steel-pipe pile；When holding the piston rod of jack tightly to contract, movable arm the
Two ends it is protruding and far from steel-pipe pile.
The internal diameter of the outer steel cylinder of the double-deck steel bushing is bigger 2~5cm than the outer diameter of truss support stake, and steel pipe is outer in the double-deck steel bushing
Diameter is smaller 2~5cm than the internal diameter of truss support stake, and outer steel cylinder lower part is equipped with multiple double through being fixed on truss support stake of barrel
Clamping screw in layer steel bushing.
Every steel cushion cap spud leg extends outward the steel corbel above steel-pipe pile, the Oversea wind power generation from outer wall
Unit pile foundation support table basis carries out steel cushion cap leveling using steel cushion cap support leveling system, and the steel cushion cap supports leveling system packet
More set leveling pile clamping devices are included, every steel cushion cap spud leg is supported in by three sets of leveling pile clamping devices on steel-pipe pile, and leveling card stake is often covered
Device includes that a radial jack, an axial jack and a fastener, three sets of leveling pile clamping devices are circumferentially equal along steel-pipe pile
Cloth, fastener back-off are fixed in steel-pipe pile top and by clamping screw on steel-pipe pile tube wall, and fastener upwardly extends to be formed
Riser, radial jack is supported to be fixed on support riser, radial jack piston rod is pressed on steel cushion cap spud leg outer wall, and support is perpendicular
Support transverse slat is equipped at the top of plate, axial jack is set on support transverse slat, and axial jack piston rod support is in steel corbel bottom, often
The radial jack and axial jack for covering leveling pile clamping device have circuit to be connected to microprocessor.
Steel cushion cap support leveling system further includes being set to two of steel cushion cap flange surface to be connected to microprocessor
Inclination sensor, two inclination sensors are respectively arranged on flange surface two radial vertical positions each other.
Steel cushion cap spud leg bottom is provided with annular basin type rubber sealing ring, so that spud leg outer wall is closed with the formation of steel-pipe pile inner wall
It closes.
The construction method on a kind of as above any offshore wind turbine pile foundation support table basis comprising following step
Suddenly：
(1), truss support stake injection：In piece truss support stake of steel cushion cap center injection；
(2), truss installa-tion is positioned：Truss prefabricated processing on the coast is positioned, barge whole Transporting to construction site passes through water
Upper lifting platform will position the double-deck steel bushing insertion truss support stake at truss center, the double-deck steel bushing and truss support after slinging
Stake is locked, and positioning truss installa-tion finishes；
(3), steel-pipe pile is in place：Upper layer and lower layer stake is opened in steel-pipe pile prefabricated processing on the coast, barging to construction site
Anchor ear, suspension centre at the top of lifting platform hoist cable hanging buckle steel-pipe pile waterborne, after steel-pipe pile is erected mobile elevator boom rack by steel-pipe pile into
Enter to position in truss Longkou stake anchor ear, closes up upper layer and lower layer stake anchor ear, acknowledgement bit postpones decentralization steel-pipe pile, unlocks hoist cable；
(4), steel-pipe pile injection：Hydraulic hammer is hung in steel pipe stake top by lifting platform hoist cable waterborne, measures steel pipe again
Stake position after confirmation meets the requirements, starts hydraulic hammer injection, and the synchronous check for carrying out steel-pipe pile position is led to when undesirable
It crosses stake anchor ear to be adjusted steel-pipe pile position, continues injection steel-pipe pile until top mark height meets the requirements, stopping hydraulic hammer simultaneously being hung
From steel pipe stake top, other two steel-pipe piles of injection successively；
(5), positioning die carrier is removed：Stake anchor ear is first opened, and releases the clamping screw of the double-deck steel bushing and truss support stake
Connection will be positioned after truss is sling using lifting platform waterborne and be placed on transport barge, on the water on lifting platform hoist cable hook
Vibration hammer to be hung, is displaced in truss support stake and clamps, Vibration on Start-up hammer and hoist engine up pull out truss support stake, until
It all extracts and lies against on transport barge；
(6), steel cushion cap is installed：Steel construction processing factory manufactures steel cushion cap on the coast, barging to construction site, using water
Upper lifting platform lifting installation, allows three spud legs of steel cushion cap all to slide into three steel-pipe piles of advance injection, in each steel
Pile pile top position corresponding with steel cushion cap spud leg steel corbel is evenly arranged three leveling pile clamping devices, is held by leveling pile clamping device supporting steel
The weight of platform；
(7), steel cushion cap leveling：Each leveling pile clamping device is equipped with radial and axial jack, steel cushion cap top flange dish
2 inclination sensors are placed on face, the posture of steel cushion cap is shown to construction personnel, microprocessor by data by display circuit
Absolute altitude and the position of steel cushion cap spud leg are adjusted by 18 jack controlled on nine sets of leveling pile clamping devices on three steel-pipe piles,
And then adjust steel cushion cap ring flange levelness.So that steel cushion cap spud leg axis is overlapped with steel-pipe pile axis, while keeping steel cushion cap method
Blue disk level meets the requirements；
(8), grouting connection：Grouting material is perfused in the annular gap formed between steel cushion cap spud leg and steel-pipe pile, fills
The grout pipe of pulp grinder is connect with three grout holes on steel pipe pile lining respectively, starts grouter and grouting material is pressed into annular gap
It is interior, until having grouting material spilling at the top of steel-pipe pile, grout hole is closed, equipment is withdrawn, and other two steel-pipe piles are perfused successively；
(9) steel cushion cap support leveling system is removed：After grouting material hardening, steel cushion cap spud leg connect completion with steel-pipe pile,
It removes steel cushion cap support leveling system and completes offshore wind turbine pile foundation support table basis.
The advantageous effect of the present invention compared with the existing technology is：
The steel-pipe pile and steel cushion cap of the present invention can make in steel construction processing factory in advance, and at sea construction site only needs
It driven piles, installed and cementing operations, greatly reduce operation on the sea amount.Steel-pipe pile is arranged with steel cushion cap spud leg connecting portion
On the water, it is connected by being in the milk, is easy to leveling, difficulty of construction is small.All operations are all more than the water surface, securely and reliably；This hair
Bright light structure, steel-pipe pile deviate the long distance of tower barrel of wind generating set central shaft, and active force brachium is effective against
The tilting moment that wind power generating set generates；The present invention is readily transported, and construction cost is low.But plug-in type installation method is to steel-pipe pile
Relative positional accuracy requires very high, of the invention steel-pipe pile piling positioning mould bases, can guarantee accurate opposite position between steel-pipe pile
It sets, positioning truss is connect with truss support stake using plug-in type, and installation and dismounting are easy to operate, also repeatable to utilize.Wind-force
Generating set is very high to the verticality requirement of tower, is not more than 3/1000ths, therefore it is required that the steel cushion cap being connect with tower is horizontal
Precision is very high, and the steel cushion cap support leveling system that the present invention uses can carry out accurate leveling, ensure the horizontal accuracy of steel cushion cap
It is required that.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the offshore wind turbine foundation front view of the present invention.
Fig. 2 is the steel cushion cap vertical view of offshore wind turbine foundation.
Fig. 3 is steel cushion cap spud leg and steel-pipe pile plug-in type connection diagram.
Fig. 4 is piling positioning mould bases vertical view.
Fig. 5 is piling positioning mould bases front view.
Fig. 6 is truss support stake bilayer steel bushing schematic diagram.
Fig. 7 is an anchor ear schematic diagram (when closing up).
Fig. 8 is an anchor ear schematic diagram (when opening)
Fig. 9 is the schematic diagram of steel cushion cap leveling pile clamping device.
Figure 10 is steel cushion cap support leveling system wiring schematic diagram.
Wherein,
Steel-pipe pile 1, steel cushion cap 2, tower barrel of wind generating set 3, ring flange 4, spud leg 5, core case 6, overhanging steel box-girder
7, grouting material 8, grout hole 9, truss support stake 10, positioning truss 11, hydraulic hammer 12, steel corbel 13, axial jack 14, diameter
To jack 15, leveling pile clamping device clamping screw 16, stake anchor ear 17, inclination sensor 18, leveling pile clamping device 19, outer steel cylinder 20,
Interior steel cylinder 21, clamping screw 22, head cover 23, the double-deck steel bushing 24 hold jack 25, idler wheel 26, movable arm 27, the fixed back of the body tightly
Frame 28, Longkou 29, jack diversity line device 30, the total hub 31 of jack, microprocessor 32, display circuit 33, warning circuit
34, power circuit 35, fastener 36, basin type rubber sealing ring 37
Specific implementation mode
As shown in Figure 1, the basis of the offshore wind turbine for the present invention comprising three steel-pipe piles 1 and steel cushion cap
2.The ring flange 4 being connect with tower barrel of wind generating set 3 is arranged in 2 top of steel cushion cap, and steel cushion cap is with a core case 6 and therefrom
The outwardly extending several steel box-girders 7 of heart babinet, 6 top of core case are equipped with the flange being connect with tower barrel of wind generating set 3
Disk 4 arranges steel reinforcing segments plate in length and breadth in babinet.
The one end of every steel box-girder far from core case is equipped with steel cushion cap spud leg 5, steel cushion cap spud leg quantity and steel-pipe pile number
Amount is consistent and is socketed in corresponding steel-pipe pile.
As shown in figure 9, the top of steel-pipe pile 1 is equipped with from the outwardly extending steel corbel of steel cushion cap spud leg outer wall 13.Steel cushion cap 2 is pacified
Steel cushion cap spud leg 5 is inserted into steel-pipe pile 1 when dress, the setting leveling pile clamping device 19 between steel corbel 13 and steel-pipe pile 1 push up, by being distributed
Nine sets of leveling pile clamping devices on three steel-pipe piles 1 support the weight of entire steel cushion cap 2 and carry out accurate leveling.Leveling is completed
Afterwards, be perfused grouting material in the gap between 1 inner wall of steel-pipe pile and steel cushion cap spud leg 3, after grouting material hardening by steel-pipe pile with
Steel cushion cap spud leg links to form an entirety.
To ensure that the exact position of steel-pipe pile pile sinking, the present invention devise a kind of pile sinking of offshore wind turbine foundation
Positioning die carrier, as shown in Figure 4 and Figure 5, the positioning die carrier by centrally located truss support stake 10, around outside truss support stake
The positioning truss 11 in portion and the double-deck steel bushing 24 form.Truss support stake is the large diameter steel pipe pile that diameter is more than 8 meters, preferably
The large diameter steel pipe pile of 8m~15m.
Positioning truss 11 extends outward to form evenly spaced three branches from the double-deck steel bushing 24, and each branch corresponds to
A piece steel-pipe pile of required injection, each branch outer end center have the Longkou 29 for accommodating steel-pipe pile.Position truss 11 with
Truss support stake 10 is linked together by the double-deck steel bushing 24.As shown in fig. 6, interior steel of the double-deck steel bushing 24 by coaxial reducing
Cylinder 21, outer steel cylinder 20, head cover 23, clamping screw 22 are constituted.Outer steel cylinder 20, truss support stake 10,21 three of interior steel cylinder diameter
Relationship is：Outer steel cylinder internal diameter>Truss support stake outer diameter, truss support stake internal diameter>Interior steel cylinder outer diameter, spacing preferably 2~5cm, with
The double-deck steel bushing 24 is inserted into truss support stake 10 when facilitating installation.Outer steel cylinder lower part be equipped with it is multiple through barrel by truss support
Stake 10 is fixed on the clamping screw in the double-deck steel bushing 24.The double-deck steel bushing 24 is fixed on one with positioning truss 11 by node
It rises, 24 outer wall of the double-deck steel bushing is welded with the node steel plate for being fixed together with node.The double-deck steel bushing back-off is in truss
Stake top portion, truss support pile protection is supported to be connected between the inside and outside steel cylinder of the double-deck steel bushing, and be locked by clamping screw.
As shown in figure 5, being provided with the stake anchor ear 17 of upper and lower layer on the positioning truss of each Longkou position, stake anchor ear 17 is logical
It crosses connecting rod to link together with positioning truss 11, steel-pipe pile 1 is fixed fixed by upper and lower layer stake anchor ear 17 when pile sinking
Position.As shown in Figure 7,8, stake anchor ear 17 by symmetrical movable arm 27, fixed backrest 28 and holds jack 25 and rolling tightly
26 composition of wheel, fixed backrest 28 are fixed relative to positioning truss, and 27 middle part of movable arm is articulated with fixed backrest 28, can be around solid
Fixed-axis rotation, the first end of movable arm 27 are connected to the piston rod overhanging end for holding jack 25 tightly, and the second of movable arm 27
End is equipped with idler wheel.Holding the piston rod of jack 25 tightly can go out to both sides are overhanging respectively from fixed backrest end, drive activity
Arm 27 is rotated around fixing axle.When hold tightly jack 25 piston rod be in overhanging state when, by the first end of movable arm to
It pushes open outside, then inwardly (i.e. steel-pipe pile stake face) compresses the second end of movable arm, to tightly embrace steel-pipe pile.When holding thousand
When the piston rod on jin top 25 is to contract, for movable arm first end inwardly close to fixed backrest 28, second end is protruding (separate
Steel-pipe pile face), in a state is opened, steel-pipe pile can be translated into or leave in anchor ear at this time, to make the opening of movable arm
It is controlled with closing up by holding the flexible of jack 25 tightly.Idler wheel 26 can be adjusted around steel-pipe pile surface scrolls by the way that jack is flexible
The position of whole steel-pipe pile.
To ensure that the horizontal accuracy of steel cushion cap, the present invention devise a kind of steel cushion cap branch of offshore wind turbine foundation
Leveling system is supportted, which includes more set leveling pile clamping devices 19, and every steel cushion cap spud leg 5 passes through three sets of leveling card stakes
Device is supported on steel-pipe pile 1.As shown in figure 9, often set leveling pile clamping device 19 includes that 15, axial directions of a radial jack are very heavy
Top 14 and a fastener 36, three sets of leveling pile clamping devices are circumferentially uniformly distributed along steel-pipe pile.Fastener 36 is buckled in 1 top of steel-pipe pile
And be fixed on 1 tube wall of steel-pipe pile by leveling pile clamping device clamping screw 16, fastener 36 upwardly extends to form support riser, diameter
It is fixed on support riser to jack 15, radial jack piston rod is pressed on 5 outer wall of steel cushion cap spud leg.It is set at the top of support riser
There are support transverse slat, axial jack 14 to be set on support transverse slat, axial jack piston rod support is in 13 bottom of steel corbel.Due to steel
There are certain gap between 1 inner wall of 5 outer wall of cushion cap spud leg and steel-pipe pile, there is also certain height with the top of steel-pipe pile 1 for steel corbel 13
Degree is poor, therefore can adjust the opposite position of steel cushion cap spud leg 5 and steel-pipe pile 1 by axial jack 14 and radial jack 15
It sets, the adjustment vertically and horizontally of multiple steel cushion cap spud legs can adjust the level of entire steel cushion cap, and ensure spud leg
Positioned at steel pipe pile center.As shown in Figure 10, often the radial jack 15 of set leveling pile clamping device and axial jack 14 have circuit
It is connected to jack diversity line device 30, the circuit of the jack diversity line device 30 of each steel cushion cap spud leg converges to the total line concentration of jack
Device 31 is simultaneously access to microprocessor 32.
The support leveling system further includes being set to two inclination sensors 18 of steel cushion cap flange surface, two inclinations
Sensor 18 is respectively arranged on flange surface two and radial vertical position and is electrically connected to microprocessor 32, microprocessor each other
Device is electrically connected with display circuit 33, warning circuit 34 and power circuit 35.Inclination sensor 18 monitors the levelness of steel cushion cap simultaneously
Real-time Feedback.When the levelness of steel cushion cap 2 is well beyond normal range (NR), warning circuit will remind construction personnel, at this time
It is checked and the advanced pedestrian's work of lifting equipment is coordinated slightly to put down, make it in support leveling system adjustable extent.When steel is held
The levelness of platform 2 reaches in support leveling system adjustable extent, but when not meeting offshore wind turbine tower installation requirement
Start support leveling system and carry out accurate leveling, by the Algorithm Analysis of microprocessor to each leveling pile clamping device axial direction jack
Operational order is sent with radial jack, three leveling pile clamping devices 19 that each steel cushion cap spud leg is controlled by microprocessor are axial
It is flexible with radial jack, finally meet the requirements the levelness of steel cushion cap 2.
Certainly, the quantity of steel-pipe pile can be selected flexibly as needed.Quantity is few, and when assembly is easier.But meet stress
It is required that stake diameter, with regard to big, the Capability Requirement of pile driving equipment is also high.Conversely, stake diameter is with regard to small.
The annular basin type rubber sealing ring 37 of 5 bottom of steel cushion cap spud leg setting, when ensureing that spud leg is inserted into steel-pipe pile, spud leg outer wall
It is formed and is closed with steel-pipe pile inner wall.In steel cushion cap spud leg annular basin type rubber sealing ring, slightly up 3 fillings are arranged in position to steel-pipe pile 1
Hole is starched, is evenly arranged in steel-pipe pile level one week.The grouting thickness that steel-pipe pile 1 is connect with steel cushion cap spud leg 5 passes through filling with length
The design of slurry connector calculates to determine.
The present invention construction method and steps are as follows：
1, truss support stake injection：In piece truss support stake of steel cushion cap center injection, to ensure positioning truss
Stability, truss support stake are generally the steel-pipe pile of diameter 8m~15m.According to construction field geology condition, select power appropriate
Vibration hammer carry out truss support stake pile sinking.
2, truss installa-tion is positioned：Positioning truss, precast plant processes on the coast, and barge whole Transporting to construction site passes through water
Upper lifting platform will position the double-deck steel bushing insertion truss support stake at truss center, the double-deck steel bushing and truss support after slinging
Stake is locked, and positioning truss installa-tion finishes.
3, steel-pipe pile is in place：Steel construction processing factory manufactures steel-pipe pile on the coast, barging to construction site.It opens up and down
Two layers anchor ear activity arm, lifting platform hoist cable hanging buckle steel-pipe pile top waterborne suspension centre, mobile lifting after steel-pipe pile is erected
Arm support enters by steel-pipe pile in positioning die carrier Longkou stake anchor ear, closes up bilevel stake anchor ear.Pass through roller jack position
Steel-pipe pile position is adjusted, position measures, and transfers steel-pipe pile after confirming position within the scope of allowable error, unlocks hoist cable.
4, steel-pipe pile injection：Hydraulic hammer is hung in steel pipe stake top by lifting platform hoist cable waterborne, measures steel-pipe pile again
Position after confirmation meets the requirements, starts hydraulic hammer injection, and the synchronous check for carrying out steel-pipe pile position is when undesirable and logical
It crosses roller jack and carries out steel-pipe pile position adjustment.Continue injection steel-pipe pile until top mark height meets the requirements.Stop hydraulic hammer simultaneously
Steel pipe stake top is hung, successively other two steel-pipe piles of injection.
5, positioning die carrier is removed：Stake anchor ear is first opened, and releases the double-deck steel bushing and the locking screw of truss support stake tethers
It connects, will be positioned after truss is sling and be placed on transport barge using lifting platform waterborne.Power vibration hammer appropriate is selected, water is hung on
On upper lifting platform hoist cable, it is displaced in truss support stake and clamps, Vibration on Start-up hammer and hoist engine, up by truss support stake
It pulls out, until all extraction is lain against on transport barge.
6, steel cushion cap is installed：Steel construction processing factory manufactures steel cushion cap on the coast, barging to construction site, and use is waterborne
Lifting platform lifting installation, allows three spud legs of steel cushion cap all to slide into three steel-pipe piles of advance injection, in each steel pipe
Stake top position corresponding with steel cushion cap spud leg steel corbel is evenly arranged three leveling pile clamping devices, by leveling pile clamping device supporting steel cushion cap
Weight.
7, steel cushion cap leveling：Each leveling pile clamping device is equipped with radial and axial jack, steel cushion cap top flange disk
On placed 2 inclination sensors, data are applied by being shown to the posture of steel cushion cap by display circuit after microprocessor processes
Worker person.Microprocessor is analyzed according to the Attitude Calculation of steel cushion cap, then by controlling nine sets of leveling card stakes on three steel-pipe piles
The absolute altitude of 18 jack adjustment steel cushion cap spud leg on device and position, and then adjust steel cushion cap ring flange levelness.Steel is set to hold
Platform spud leg axis is overlapped with steel-pipe pile axis, while steel cushion cap ring flange level being kept to meet the requirements.
8, grouting connection：The annular space perfusion grouting material formed between steel cushion cap spud leg and steel-pipe pile, grouter
Grout pipe connect respectively with three grout holes on steel pipe pile lining.Start grouter grouting material is pressed into annular gap, directly
There is grouting material spilling at the top of to steel-pipe pile, grout hole is closed, equipment is withdrawn, and other two steel-pipe piles are perfused successively.
9, support leveling system is removed：By certain time, after grouting material hardening, steel cushion cap spud leg is connect with steel-pipe pile
It completes, removes leveling pile clamping device and complete offshore wind turbine foundation.
Claims (8)
1. a kind of offshore wind turbine pile foundation support table basis, including several steel-pipe piles and a steel cushion cap, it is characterised in that：Steel
Cushion cap has a core case and is equipped at the top of the outwardly extending several steel box-girders of core case, core case to be sent out with wind-force
The ring flange of electric set tower drum connection, the one end of every steel box-girder far from core case is equipped with steel cushion cap spud leg, steel cushion cap spud leg
Quantity is consistent with steel-pipe pile quantity and is socketed in corresponding steel-pipe pile, and steel-pipe pile positions hammer piling, institute using positioning die carrier
Positioning die carrier is stated to include centrally located truss support stake corresponding with steel cushion cap center, around outside truss support stake determine
Position truss and the double-deck steel bushing, the double-deck steel bushing are made of the interior steel cylinder of coaxial reducing, outer steel cylinder and head cover, the double-deck steel bushing with
Positioning truss is fixed together by node, and truss support pile protection is connected between the inside and outside steel cylinder of the double-deck steel bushing, positions truss
With truss support stake by clad steel sleeve connection together with, positioning truss extends outward that form interval equal from the double-deck steel bushing
Even multiple branches, the position of branch and quantity are consistent with steel-pipe pile, and each branch outer end center has for accommodating steel-pipe pile
Longkou, at least provided with upper and lower two layers anchor ear, steel-pipe pile is held tightly and is fixed by stake anchor ear for each Longkou, and steel-pipe pile is held with steel
Grouting material is perfused in the annular gap of platform spud leg connecting portion to link steel-pipe pile and steel cushion cap spud leg to form an entirety.
2. offshore wind turbine pile foundation support table basis according to claim 1, it is characterised in that：Steel cushion cap spud leg with
The part of steel-pipe pile connection is located at water surface curve or more.
3. offshore wind turbine pile foundation support table basis according to claim 1, it is characterised in that：The stake anchor ear
It is made of symmetrical movable arm, fixed backrest and holding jack and idler wheel, fixed backrest is relative to positioning truss
It is fixed, be articulated with fixed backrest in the middle part of movable arm, the first end of movable arm be connected to hold tightly jack piston rod it is overhanging
It holds, the idler wheel that can be rolled along steel pipe stake body is provided in movable arm second end, the piston rod for holding jack tightly is carried on the back from fixed
Frame end portion is overhanging or inside contract to both sides respectively, when the piston rod for holding jack tightly is in overhanging state, the second of movable arm
End inwardly compresses steel-pipe pile；When holding the piston rod of jack tightly to contract, movable arm second end is protruding and separate
Steel-pipe pile.
4. offshore wind turbine pile foundation support table basis according to claim 1, it is characterised in that：Outside the double-deck steel bushing
The internal diameter of steel cylinder is bigger 2~5cm than the outer diameter of truss support stake, internal diameter of the outer diameter of steel pipe than truss support stake in the double-deck steel bushing
Small 2~5cm, outer steel cylinder lower part are equipped with multiple locking screws being fixed on truss support stake in the double-deck steel bushing through barrel
Bolt.
5. offshore wind turbine pile foundation support table basis according to claim 1, it is characterised in that：Every steel cushion cap stake
Leg extends outward the steel corbel above steel-pipe pile from outer wall, and offshore wind turbine pile foundation support table basis uses
Steel cushion cap supports leveling system to carry out steel cushion cap leveling, and the steel cushion cap support leveling system includes more set leveling pile clamping devices, often
Root steel cushion cap spud leg is supported in by three sets of leveling pile clamping devices on steel-pipe pile, and it includes that a radial direction is very heavy often to cover leveling pile clamping device
Top, an axial jack and a fastener, three sets of leveling pile clamping devices are circumferentially uniformly distributed along steel-pipe pile, and fastener is buckled in steel pipe
Stake top end is simultaneously fixed on by clamping screw on steel-pipe pile tube wall, and fastener upwardly extends to form support riser, radial jack
It being fixed on support riser, radial jack piston rod is pressed on steel cushion cap spud leg outer wall, and support transverse slat is equipped at the top of support riser,
Axial jack is set on support transverse slat, and axial jack piston rod support often covers the radial direction of leveling pile clamping device in steel corbel bottom
Jack and axial jack have circuit to be connected to microprocessor.
6. offshore wind turbine pile foundation support table basis according to claim 5, it is characterised in that：The steel cushion cap branch
It further includes being set to two inclination sensors for being connected to microprocessor of steel cushion cap flange surface to support leveling system, two inclinations
Sensor is respectively arranged on flange surface two radial vertical positions each other.
7. offshore wind turbine pile foundation support table basis according to claim 1, it is characterised in that：Steel cushion cap spud leg bottom
Portion is provided with annular basin type rubber sealing ring, is closed so that spud leg outer wall is formed with steel-pipe pile inner wall.
8. a kind of construction method on offshore wind turbine pile foundation support table basis as described in claim 1~7 is any, special
Sign is to include the following steps：
(1), truss support stake injection：In piece truss support stake of steel cushion cap center injection；
(2), truss installa-tion is positioned：Truss prefabricated processing on the coast is positioned, barge whole Transporting to construction site passes through waterborne
Galassing platform will position the double-deck steel bushing insertion truss support stake at truss center after slinging, the double-deck steel bushing is locked with truss support stake
It fastens, positioning truss installa-tion finishes；
(3), steel-pipe pile is in place：Steel-pipe pile prefabricated processing on the coast, barging to construction site are opened upper layer and lower layer stake and are embraced
Hoop, lifting platform hoist cable hanging buckle steel-pipe pile top waterborne suspension centre, mobile elevator boom rack enters by steel-pipe pile after steel-pipe pile is erected
It positions in truss Longkou stake anchor ear, closes up upper layer and lower layer stake anchor ear, acknowledgement bit postpones decentralization steel-pipe pile, unlocks hoist cable；
(4), steel-pipe pile injection：Hydraulic hammer is hung in steel pipe stake top by lifting platform hoist cable waterborne, measures steel-pipe pile position again
It sets, after confirmation meets the requirements, starts hydraulic hammer injection, the synchronous check for carrying out steel-pipe pile position passes through stake when undesirable
Anchor ear is adjusted steel-pipe pile position, continues injection steel-pipe pile until top mark height meets the requirements, stopping hydraulic hammer simultaneously hangs steel
Pile pile top, successively other two steel-pipe piles of injection；
(5), positioning die carrier is removed：Stake anchor ear is first opened, and releases the double-deck steel bushing and is connect with the clamping screw of truss support stake,
It will be positioned after truss is sling and be placed on transport barge using lifting platform waterborne, hang vibration on lifting platform hoist cable hook on the water
Hammer, is displaced in truss support stake and clamps, and Vibration on Start-up hammer and hoist engine up pull out truss support stake, until all pulling out
Go out to lie against on transport barge；
(6), steel cushion cap is installed：Steel construction processing factory manufactures steel cushion cap on the coast, barging to construction site, using waterborne
The lifting installation of galassing platform, allows three spud legs of steel cushion cap all to slide into three steel-pipe piles of advance injection, in each steel-pipe pile
Top position corresponding with steel cushion cap spud leg steel corbel is evenly arranged three leveling pile clamping devices, by leveling pile clamping device supporting steel cushion cap
Weight；
(7), steel cushion cap leveling：Each leveling pile clamping device is equipped with radial and axial jack, in steel cushion cap top flange disk
2 inclination sensors are placed, the posture of steel cushion cap is shown to construction personnel by data by display circuit, and microprocessor passes through
Absolute altitude and the position of 18 jack adjustment steel cushion cap spud leg on nine sets of leveling pile clamping devices on three steel-pipe piles are controlled, in turn
Adjust steel cushion cap ring flange levelness.So that steel cushion cap spud leg axis is overlapped with steel-pipe pile axis, while keeping steel cushion cap ring flange
Level meets the requirements；
(8), grouting connection：Grouting material, grouter are perfused in the annular gap formed between steel cushion cap spud leg and steel-pipe pile
Grout pipe connect respectively with three grout holes on steel pipe pile lining, start grouter by grouting material be pressed into annular gap in,
Until having grouting material spilling at the top of steel-pipe pile, grout hole is closed, equipment is withdrawn, and other two steel-pipe piles are perfused successively；
(9) steel cushion cap support leveling system is removed：After grouting material hardening, steel cushion cap spud leg connect completion with steel-pipe pile, removes
Steel cushion cap supports leveling system to complete offshore wind turbine pile foundation support table basis.
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| CN201810622174.XA CN108571425B (en) | 2018-06-15 | 2018-06-15 | Pile foundation cap foundation of offshore wind turbine generator set and construction method thereof |
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| CN201810622174.XA CN108571425B (en) | 2018-06-15 | 2018-06-15 | Pile foundation cap foundation of offshore wind turbine generator set and construction method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972621A (en) * | 2019-04-22 | 2019-07-05 | 中建三局基础设施建设投资有限公司 | A kind of pile pulling device and its construction method for small headroom phytal zone steel-pipe pile |
| CN110805039A (en) * | 2019-11-15 | 2020-02-18 | 中天科技集团海洋工程有限公司 | Floating pile stabilizing platform |
| CN114577182A (en) * | 2022-01-18 | 2022-06-03 | 广东华蕴海上风电科技有限公司 | Movable synthesizes marine environment observation system |
| CN114703887A (en) * | 2022-04-29 | 2022-07-05 | 中国十九冶集团有限公司 | Construction method of high-pile bearing platform tower crane foundation |
| WO2023010724A1 (en) * | 2021-08-03 | 2023-02-09 | 中国港湾工程有限责任公司 | Offshore platform pile foundation construction method |
| CN116732961A (en) * | 2023-08-14 | 2023-09-12 | 浙江华东岩土勘察设计研究院有限公司 | Positioning system of offshore jack-up platform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003193480A (en) * | 2001-12-28 | 2003-07-09 | Jfe Engineering Kk | Positioning device and positioning method for column and steel pipe pile |
| CN202247928U (en) * | 2011-08-31 | 2012-05-30 | 中国水电顾问集团华东勘测设计研究院 | Multi-pile gantry type marine wind turbine generator system base structure |
| CN204510221U (en) * | 2015-01-19 | 2015-07-29 | 天津港航工程有限公司 | Rotary marine piling saddle |
| CN105604197A (en) * | 2016-03-23 | 2016-05-25 | 中冶建工集团有限公司 | Steel pipe column barrel structure of beam column |
| CN208416809U (en) * | 2018-06-15 | 2019-01-22 | 中交第四航务工程局有限公司 | A kind of offshore wind turbine pile foundation support table basis |
-
2018
- 2018-06-15 CN CN201810622174.XA patent/CN108571425B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003193480A (en) * | 2001-12-28 | 2003-07-09 | Jfe Engineering Kk | Positioning device and positioning method for column and steel pipe pile |
| CN202247928U (en) * | 2011-08-31 | 2012-05-30 | 中国水电顾问集团华东勘测设计研究院 | Multi-pile gantry type marine wind turbine generator system base structure |
| CN204510221U (en) * | 2015-01-19 | 2015-07-29 | 天津港航工程有限公司 | Rotary marine piling saddle |
| CN105604197A (en) * | 2016-03-23 | 2016-05-25 | 中冶建工集团有限公司 | Steel pipe column barrel structure of beam column |
| CN208416809U (en) * | 2018-06-15 | 2019-01-22 | 中交第四航务工程局有限公司 | A kind of offshore wind turbine pile foundation support table basis |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972621A (en) * | 2019-04-22 | 2019-07-05 | 中建三局基础设施建设投资有限公司 | A kind of pile pulling device and its construction method for small headroom phytal zone steel-pipe pile |
| CN109972621B (en) * | 2019-04-22 | 2024-03-26 | 中建三局基础设施建设投资有限公司 | Pile pulling device for steel pipe pile in small-clearance shallow water area and construction method of pile pulling device |
| CN110805039A (en) * | 2019-11-15 | 2020-02-18 | 中天科技集团海洋工程有限公司 | Floating pile stabilizing platform |
| WO2023010724A1 (en) * | 2021-08-03 | 2023-02-09 | 中国港湾工程有限责任公司 | Offshore platform pile foundation construction method |
| CN114577182A (en) * | 2022-01-18 | 2022-06-03 | 广东华蕴海上风电科技有限公司 | Movable synthesizes marine environment observation system |
| CN114703887A (en) * | 2022-04-29 | 2022-07-05 | 中国十九冶集团有限公司 | Construction method of high-pile bearing platform tower crane foundation |
| CN116732961A (en) * | 2023-08-14 | 2023-09-12 | 浙江华东岩土勘察设计研究院有限公司 | Positioning system of offshore jack-up platform |
| CN116732961B (en) * | 2023-08-14 | 2023-10-31 | 浙江华东岩土勘察设计研究院有限公司 | Positioning system of offshore jack-up platform |
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