CN208201908U - A kind of bucket foundation with adjustable anti-buckling device - Google Patents
A kind of bucket foundation with adjustable anti-buckling device Download PDFInfo
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- CN208201908U CN208201908U CN201820258477.3U CN201820258477U CN208201908U CN 208201908 U CN208201908 U CN 208201908U CN 201820258477 U CN201820258477 U CN 201820258477U CN 208201908 U CN208201908 U CN 208201908U
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- buckling device
- adjustable anti
- subdivision
- bucket foundation
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Abstract
The utility model belongs to offshore wind power foundation technical field, disclose a kind of bucket foundation with adjustable anti-buckling device, adjustable anti-buckling device is provided in space composed by steel sheath skirt and concrete top cover, adjustable anti-buckling device is constituted by being set to the indoor unit rack of each subdivision, and unit rack forms support to the steel sheath skirt and subdivision plate of place subdivision room and moved up and down by the wire rope suspensioning of lifting equipment；It is acted in sinking watching in bucket foundation by internal and external pressure difference, automatic sinking monitoring system calculates the decentralization length of unit rack according to driving depth, and the position of adjustment unit bracket in real time, make that each layer unit bracket is spaced always be uniformly distributed in bucket foundation do not enter mud part.The utility model, according to the adjustable anti-buckling device of driving depth adjust automatically, can provide proper stiffness during barrel-shaped foundation sinking for sheath skirt, effectively prevent sheath skirt that buckling occurs, and reduce buckling failure risk.
Description
Technical field
The utility model belongs to offshore wind power foundation technical field, in particular to a kind of with adjustable anti-in the wrong
The bucket foundation of bent device.
Background technique
Offshore wind energy resource is abundant, and has the advantages such as wind field fluidised form is good, be not take up soil, annual utilization hours height, makes
It is very swift and violent to obtain the offshore wind power development impetus in recent years.Currently, the structure type of offshore wind power foundation includes gravity type foundation, list
Pile foundation, tripod basis, jacket basis, grouped piles cap basis, bucket foundation and buoyant foundation etc..Wherein, bucket foundation
Also it is suction anchor, since its simple installation is quick, construction weight mitigates significantly, therefore has been widely used in offshore wind farm and various
In the structures such as ocean platform, single-point, multipoint mooring and the subsea manifold of type.
Currently, the side wall and subdivision plate of bucket foundation mostly use thin-walled steel plate structure, this makes cylinder-shaped foundation structure more
Light, sinking work is easier to carry out.But since the wall thickness of thin-walled steel plate is relatively thin, in the work of inside and outside differential pressure in sinking watching
With lower easy generation buckling unstability.After bucket foundation submerged, cylinder is set to sink to initial depth certain in mud by Gravitative Loads
Degree forms the closed state of water body in cylinder, then utilizes the pump valve system in cylinder type basal top setting, extracts out in bucket foundation
The water in portion, so that the water extracted out in the same time is greater than the water penetrated into from bottom makes bucket foundation exist to form inside and outside differential pressure
Quickly sink in short time.Since cylinder base enters mud than shallower at the beginning, the above overhanging portion in mud face is larger, therefore in external and internal pressure
Under the action of difference, barrel is likely occurred buckling failure.With the increasing of depth of penetration, anti-flexion capabilities increase, but with
The increase of depth of penetration, penetration resistance increase, and need bigger pressure difference (suction) realization is heavy to pass through in place, and there are still bend for barrel
The risk that song destroys.
To improve the anti-flexion capabilities of bucket foundation, ribbed stiffener is usually arranged in when design, but the presence of ribbed stiffener will lead to cylinder
The increase of type basis penetration resistance increases its risk not in place of sinking.
Utility model content
The technical issues of buckling failure is easy to happen when being barrel-shaped foundation sinking to be solved in the utility model, provide one
Kind has the bucket foundation of adjustable anti-buckling device, using novel adjustable anti-buckling device, in barrel-shaped foundation sinking mistake
According to driving depth automatic adjusting position in journey, certain rigidity is provided for barrel and subdivision plate, effectively prevent that buckling occurs, subtracts
The risk of small buckling failure.
In order to solve the above-mentioned technical problem, the utility model is achieved by technical solution below:
A kind of bucket foundation with adjustable anti-buckling device, including steel sheath skirt and concrete top cover, the steel
Multiple subdivision rooms are divided by subdivision plate in space composed by sheath skirt and the concrete top cover, the steel sheath skirt and described mixed
It is provided with adjustable anti-buckling device in space composed by solidifying soil top cover, the adjustable anti-buckling device is set respectively by multiple
It is placed in the indoor unit rack of each subdivision to constitute, each unit rack the steel sheath skirt of subdivision room and institute where fitting in
The steel construction for stating subdivision plate surrounds framework and the framework is horizontally placed in subdivision room, to make each unit rack to place point
The steel sheath skirt in cabin and the subdivision plate form support；The adjustable anti-buckling device by lifting equipment wirerope
Suspention moves up and down.
Preferably, the initial position of the adjustable anti-buckling device and final position are flush-mounted in the concrete top cover,
And by the wire rope suspensioning of the lifting equipment；The concrete cap base be provided with match with the unit rack it is recessed
Slot, and the concrete top cover offers the preset hole for making the steel wire penetrating of the lifting equipment.
Preferably, the wirerope of the lifting equipment, which passes through, is provided with the snap ring for self solving locking device and described adjustable anti-bends
Bent device connection.
Preferably, the unit rack of the adjustable anti-buckling device is provided with n-layer, n=1 or 2 or 3 or 4 or 5；In cylinder
Type basis is acted in sinking watching by internal and external pressure difference, and the automatic sinking monitoring system of bucket foundation is used for deep according to mud is entered
Degree, calculates the decentralization length of each layer unit rack, and lifting equipment described in real-time control adjusts each layer by wirerope
The position of the unit rack makes what each layer unit bracket of the adjustable anti-buckling device was spaced always to be uniformly distributed in cylinder
Type basis does not enter mud part, i.e., each layer unit bracket is located at 1/ (n of the non-driving depth of steel sheath skirt from top to bottom
+ 1), 2/ (n+1), 3/ (n+1) ..., at n/ (n+1).
The beneficial effects of the utility model are:
The utility model provides a kind of bucket foundation with adjustable anti-buckling device, using novel adjustable anti-
Flexion device provides centainly according to driving depth automatic adjusting position during barrel-shaped foundation sinking for barrel and subdivision plate
Rigidity, effectively prevent barrel and subdivision plate that buckling occurs, reduce the risk of buckling failure；And avoid setting ribbed stiffener and
Caused bucket foundation penetration resistance increases and possibility not in place of sinking；Meanwhile adjustable anti-buckling device takes full advantage of
Concrete top cover, initial position and final position are embedded in the groove of concrete top cover, will not be generated to barrel-shaped foundation sinking
Other influences.
Detailed description of the invention
Fig. 1 is the stereochemical structure signal of the bucket foundation provided by the utility model with adjustable anti-buckling device
Figure；
Fig. 2 is the main view of the bucket foundation provided by the utility model with adjustable anti-buckling device；
Fig. 3 is the schematic perspective view of adjustable anti-buckling device and subdivision plate in the utility model；
Fig. 4 is the bottom view for having reeded concrete top cover in the utility model.
In above-mentioned figure: 1, sheath skirt, 2, concrete top cover, 3, subdivision plate, 4, adjustable anti-buckling device, 5, wirerope, 6,
Unit rack, 7, groove.
Specific embodiment
For the summary of the invention, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing:
If Fig. 1 to Fig. 3 shows, present embodiment discloses a kind of bucket foundations with adjustable anti-buckling device, main to wrap
Include steel sheath skirt 1, concrete top cover 2, subdivision plate 3 and adjustable anti-buckling device 4.
Steel sheath skirt 1 is the Circular Thin steel construction of diameter 30m, height 10m, skirtboard thickness 25mm；Concrete top cover 2 is fixed
It is connected to 1 top of steel sheath skirt, height 2m.External radius is provided in space composed by steel sheath skirt 1 and concrete top cover 2
The regular hexagon of 7.5m and the subdivision plate 3 that steel sheath skirt 1 is extended to by each vertex of the regular hexagon, and by subdivision plate 3 divide in
Seven subdivision rooms of honeycomb arrangement, 3 thickness 15mm of subdivision plate.
Adjustable anti-buckling device 4 is located in space composed by steel sheath skirt 1 and concrete top cover 2, by seven difference
Be set to subdivision room unit rack 6 constitute, each unit rack 6 be by common iron, thin walled steel structure, angle steel, T-steel,
The framework of the compositions such as I-steel, the framework are horizontally placed on the planar graph and place subdivision that in each subdivision room and it is surrounded
The horizontal cross-section figure of room is identical.Unit rack 6 and the steel sheath skirt 1 and subdivision plate 3 of subdivision room where it fit, to steel
Sheath skirt 1 and subdivision plate 3 processed form rigid support, while unit rack 6 can be carried out moving down by the suspention of wirerope 5 of lifting equipment
It is dynamic.6 height 0.1~0.2m, 10~60mm of thickness of unit rack in the present embodiment.
As shown in figure 4, adjustable 4 initial position of anti-buckling device and final position are embeddable in concrete top cover 2, and by
The wirerope 5 of lifting equipment suspends in midair.2 bottom of concrete top cover is provided with the groove 7 to match with unit rack 6, while by recessed
Slot 7 offers preset hole in concrete top cover 2 upwards, which is used for the wirerope 5 across lifting equipment, and wirerope 5 is worn
Later, encapsulation process is done to the top of preset hole, to guarantee the leakproofness in sinking watching.Wirerope 5 by snap ring with it is adjustable
The anti-buckling device 4 of formula is connected, and after barrel-shaped foundation sinking, snap ring can be prevented by self solving locking device and automatically terminating with adjustable
The connection of flexion device 4.
The unit rack 6 of adjustable anti-buckling device 4, which can be set one layer, also can be set multilayer, and quantity is generally in 1-5
In layer range.
At the end of bucket foundation self weight is sunk, using the pump valve system being arranged in cylinder type basal top, cartridge type base is extracted out
Water inside plinth makes bucket foundation quickly sink in a short time to form inside and outside differential pressure.Pass through external and internal pressure in bucket foundation
In difference effect sinking watching, adjustable anti-buckling device 4 is suspended in midair by lifting equipment, is spaced 1-5 layer unit bracket 6 always
Be uniformly distributed in bucket foundation 1 does not enter mud part, to effectively provide certain rigidity for steel sheath skirt 1 and subdivision plate 3.
The automatic sinking monitoring system of bucket foundation calculates the decentralization length of each layer unit bracket 6 according to driving depth, and adjusts in real time
The position of whole each layer unit bracket 6, while can also be finely adjusted manually.
The unit rack 6 of adjustable anti-buckling device 4, the layer is always positioned at the non-driving depth of steel sheath skirt 1 when being arranged 1 layer
1/2 at, each layer is located at always from top to bottom at 1/3, the 2/3 of the non-driving depth of steel sheath skirt 1 when being arranged 2 layers, if
Each layer is located at always from top to bottom at 1/4,2/4, the 3/4 of the non-driving depth of steel sheath skirt 1 when setting 3 layers, when n-layer is arranged
Each layer be located at always from top to bottom 1/ (n+1) of the non-driving depth of steel sheath skirt 1,2/ (n+1), 3/ (n+1) ..., n/
(n+1) at, when being arranged 5 layers each layer be located at always from top to bottom the non-driving depth of steel sheath skirt 1 1/6,2/6,3/6,
4/6, at 5/6.
At the end of bucket foundation acts on by internal and external pressure difference, each layer unit branch of adjustable anti-buckling device 4
Frame 6 is embedded in concrete top cover 2 again.
The construction method of the above-mentioned bucket foundation with adjustable anti-buckling device carries out in accordance with the following steps:
(1) adjustable 4 initial position of anti-buckling device is located in the groove 7 of concrete top cover 2, by snap ring with rise reset
Standby wirerope 5 connects, and after wirerope 5 passes through the preset hole of concrete top cover 2, does encapsulation process to the top of preset hole, with
Guarantee leakproofness；After bucket foundation submerged, initial depth 2m in mud is sunk to by Gravitative Loads, forms the envelope of water body in cylinder
Closed state.
(2) at the end of bucket foundation self weight is sunk, by monitoring system of sinking automatically according to obtained driving depth H0, meter
Calculate the decentralization length of each layer unit bracket 6 in adjustable anti-buckling device 4, and control lifting equipment will be connected to it is adjustable anti-
The wirerope 5 of flexion device 4 presses degree of lengthening and transfers each layer unit bracket 6 automatically in place；
The height of steel sheath skirt 1 is set as H, according to the number of plies n of unit rack 6 in adjustable anti-buckling device 4, each layer list
The decentralization length that first bracket 6 is transferred automatically is Lm, and wherein m indicates m layers, m=1,2,3 ..., n, Lm=m (H-H0)/(n+1),
To make each layer unit bracket 6 in adjustable anti-buckling device 4 be sequentially located at the 1/ of the non-driving depth of steel sheath skirt 1 from top to bottom
(n+1), 2/ (n+1) ..., at n/ (n+1).
(3) using the pump valve system being arranged in cylinder type basal top, the water inside bucket foundation is extracted out to form interior external pressure
Difference makes bucket foundation quickly sink in a short time；While bucket foundation acts on by internal and external pressure difference, by automatic
Sinking monitoring system is according to obtained driving depth H1, each layer unit bracket 6 in adjustable anti-buckling device 4 is calculated in real time
Transfer length, and real-time control lifting equipment will be connected to adjustable anti-buckling device 4 wirerope 5 press degree of lengthening it is automatic on
Move each layer unit bracket 6；
The height of sheath skirt is set as H, according to the number of plies n of unit rack 6 in adjustable anti-buckling device 4, each layer unit branch
Decentralization length after frame 6 moves up automatically is Lm ', and wherein m indicates m layers, m=1,2,3 ..., n, Lm '=m (H-H1)/(n+1),
To make each layer unit bracket 6 in adjustable anti-buckling device 4 be sequentially located at the non-driving depth of steel sheath skirt 1 always from top to bottom
1/ (n+1), 2/ (n+1) ..., at n/ (n+1)；
While the wirerope 5 of lifting equipment is adjusted automatically, it can also be finely adjusted manually.
(4) at the end of bucket foundation acts on by internal and external pressure difference, adjustable anti-buckling device 4 will be embedded in again
Into the groove 7 of concrete top cover 2, by the auto-unlocking device of 5 bottom end snap ring of wirerope, automatically terminates and prevent bending with adjustable
The connection of bent device 4, and the encapsulation process on preset hole top is removed, wirerope 5 is withdrawn, finally to the default of concrete top cover 2
Hole is in the milk, and guarantees its leakproofness.
Although being described above in conjunction with preferred embodiment of the attached drawing to the utility model, the utility model is not
It is confined to above-mentioned specific embodiment, the above mentioned embodiment is only schematical, is not restrictive, ability
The those of ordinary skill in domain is not departing from present inventive concept and scope of the claimed protection under the enlightenment of the utility model
In the case of, the specific transformation of many forms can also be made, these are belonged within the protection scope of the utility model.
Claims (4)
1. a kind of bucket foundation with adjustable anti-buckling device, including steel sheath skirt and concrete top cover, the steel cylinder
Multiple subdivision rooms are divided by subdivision plate in space composed by skirt and the concrete top cover, which is characterized in that the steel cylinder
Be provided with adjustable anti-buckling device in space composed by skirt and the concrete top cover, the adjustable anti-buckling device by
Multiple indoor unit racks of each subdivision that are respectively arranged at are constituted, the steel of each unit rack subdivision room where fitting in
The steel construction of sheath skirt processed and the subdivision plate surrounds framework and the framework is horizontally placed in subdivision room, to make each unit branch
Frame forms support to the steel sheath skirt of place subdivision room and the subdivision plate；The adjustable anti-buckling device is reseted by
Standby wire rope suspensioning moves up and down.
2. a kind of bucket foundation with adjustable anti-buckling device according to claim 1, which is characterized in that it is described can
The initial position of the anti-buckling device of mode and final position are flush-mounted in the concrete top cover, and by the steel of the lifting equipment
Cord suspention；The concrete cap base is provided with the groove to match with the unit rack, and the concrete top cover
Offer the preset hole for making the steel wire penetrating of the lifting equipment.
3. a kind of bucket foundation with adjustable anti-buckling device according to claim 1, which is characterized in that described
The wirerope of heavy equipment, which passes through to be provided with, to be self solved the snap ring of locking device and connect with the adjustable anti-buckling device.
4. a kind of bucket foundation with adjustable anti-buckling device according to claim 1, which is characterized in that it is described can
The unit rack of the anti-buckling device of mode is provided with n-layer, n=1 or 2 or 3 or 4 or 5；Made in bucket foundation by internal and external pressure difference
With in sinking watching, the automatic sinking monitoring system of bucket foundation is used to calculate each layer unit branch according to driving depth
The decentralization length of frame, and lifting equipment described in real-time control adjusts the position of each layer unit rack by wirerope, makes institute
State that each layer unit bracket of adjustable anti-buckling device is spaced always be uniformly distributed in bucket foundation do not enter mud part, i.e., respectively
Layer unit bracket be located at from top to bottom 1/ (n+1) of the non-driving depth of steel sheath skirt, 2/ (n+1), 3/ (n+1) ...,
At n/ (n+1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820258477.3U CN208201908U (en) | 2018-02-14 | 2018-02-14 | A kind of bucket foundation with adjustable anti-buckling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820258477.3U CN208201908U (en) | 2018-02-14 | 2018-02-14 | A kind of bucket foundation with adjustable anti-buckling device |
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| CN208201908U true CN208201908U (en) | 2018-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222058A (en) * | 2018-02-14 | 2018-06-29 | 天津大学 | A kind of bucket foundation and its construction method with adjustable anti-buckling device |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222058A (en) * | 2018-02-14 | 2018-06-29 | 天津大学 | A kind of bucket foundation and its construction method with adjustable anti-buckling device |
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