CN209082546U - A kind of composite base structure suitable for marine wind electric field fan - Google Patents
A kind of composite base structure suitable for marine wind electric field fan Download PDFInfo
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- CN209082546U CN209082546U CN201821689677.0U CN201821689677U CN209082546U CN 209082546 U CN209082546 U CN 209082546U CN 201821689677 U CN201821689677 U CN 201821689677U CN 209082546 U CN209082546 U CN 209082546U
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Abstract
The utility model discloses a kind of composite base structure suitable for marine wind electric field fan, which includes steel-pipe pile, wadding weft variation and Duo Gen prestress anchorage cable；The steel-pipe pile bottom end is threaded through in the supporting course of marine site；The wadding weft variation is poured in being placed on the supporting course in the steel-pipe pile；The prestress anchorage cable top is anchored on the steel-pipe pile inner wall, and bottom end passes through the wadding weft variation and build-in in micro- weathered rock formation of marine site.Steel-pipe pile, wadding weft variation, prestress anchorage cable are effectively combined the composite base structure formed by the utility model, each section cooperates, the moment of flexure that the common vertical force for bearing top and the bottom structure, horizontal force and horizontal force generate, on the one hand, it ensure that the bearing capacity and stability requirement of foundation structure, on the other hand, the embedded depth for reducing steel-pipe pile reduces difficulty of construction and operating expenses.
Description
Technical field
The utility model relates to the basic constructional design fields of marine wind electric field fan, and in particular to one kind is suitable for sea
The composite base structure of wind electric field blower.
Background technique
It is the strategy and policy of global energy exploitation, the first East Sea the 100MW offshore wind farm in China using clean wind energy resources
Field was built up in 2011.Through counting, blower foundation cost accounts for about the 20%~30% of wind power plant totle drilling cost, is to cause offshore wind farm
One of the reason of field higher cost.Therefore suitable offshore wind power foundation is chosen according to the different depth of water, geology and ambient conditions
Pattern and reasonable arrangement and method for construction are the key that reduce marine wind electric field construction cost.
At present the foundation structure of marine wind electric field fan generally use gravity type foundation, single-pile foundation, tripod type basis,
Jacket-type basis, more pile type foundations and other concept type bases etc..Various forms of bases be both needed to according to the different depth of water,
Matter condition etc. is respectively adopted, and in a particular application, blower foundation cost accounting is still higher for the above method.
Utility model content
In view of the deficiencies in the prior art, it is stronger, economical that the purpose of this utility model is to provide a kind of bearing capacities
Property is preferably suitable for the composite base structure of marine wind electric field fan.
To achieve the above objectives, the technical scheme adopted by the utility model is that: it is a kind of suitable for marine wind electric field fan
Composite base structure comprising:
Steel-pipe pile, the steel-pipe pile bottom end are threaded through in the supporting course of marine site；
Wadding weft variation, the wadding weft variation are poured in being placed on the supporting course in the steel-pipe pile；
More prestress anchorage cables, the prestress anchorage cable top are anchored on the steel-pipe pile inner wall, and bottom end passes through described
Wadding weft variation and build-in are in micro- weathered rock formation of marine site.
Further, the composite base structure further includes steel anchor box, and the steel anchor box is set on the steel-pipe pile inner wall,
The prestress anchorage cable top is anchored on the steel anchor box.
Further, the prestress anchorage cable is circumferentially uniformly distributed along the steel-pipe pile.
Further, the steel-pipe pile diameter is 6~10m, and wall thickness is not less than 60mm.
Further, the wadding weft variation thickness is not less than 6m.
Further, the prestress anchorage cable uses prestress wire.
Further, the steel-pipe pile is threaded through vertically in the supporting course of marine site, and the prestress anchorage cable is embedding vertically
Gu at sea in micro- weathered rock formation of ground.
Compared with the prior art, the advantages of the utility model are:
(1) steel-pipe pile, wadding weft variation, prestress anchorage cable are effectively combined the composite foundation knot formed by the utility model
Structure, each section cooperate, the moment of flexure that the common vertical force for bearing top and the bottom structure, horizontal force and horizontal force generate, on the one hand,
It ensure that the bearing capacity and stability requirement of foundation structure, on the other hand, reduce the embedded depth of steel-pipe pile, reduce
Difficulty of construction and operating expenses.
(2) advantageous feature of the utility model effective use steel-pipe pile, wadding weft variation, prestress anchorage cable, has construction
Advantages and the spies such as simplicity, quality can guarantee, project amount saves, bearing capacity is big, stability is good, good in economic efficiency, adaptation offshore construction
Point, with wide application and development prospect.
Detailed description of the invention
Fig. 1 is the composite base structure schematic diagram provided by the embodiment of the utility model suitable for marine wind electric field fan；
Fig. 2 is schematic diagram in A-A direction in Fig. 1.
In figure: 1, steel-pipe pile；2, wadding weft variation；3, prestress anchorage cable；4, steel anchor box；5, coating；6, supporting course；7,
Micro- weathered rock formation；8, sea level.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
It is shown in Figure 1, main coating 5, the solid supporting course 6 and micro- by setting gradually from top to bottom of marine site
Weathered rock formation 7 is constituted, and supporting course 6 can provide support force for steel-pipe pile 1.
Shown in Figure 1, the utility model embodiment provides a kind of composite foundation suitable for marine wind electric field fan
Structure comprising steel-pipe pile 1, wadding weft variation 2 and Duo Gen prestress anchorage cable 3；1 bottom end of steel-pipe pile is threaded through holding for marine site
In power layer 6, the top of steel-pipe pile 1 connects blower fan structure；Wadding weft variation 2 is poured in being placed on supporting course 6 in steel-pipe pile 1；In advance
3 top of stress anchor cable is anchored on 1 inner wall of steel-pipe pile, and bottom end passes through wadding weft variation 2 and build-in in the gentle breeze of marine site
In rock stratum 7.
Steel-pipe pile 1, wadding weft variation 2, prestress anchorage cable 3 are effectively combined the composite foundation knot formed by the utility model
Structure, each section cooperate, the moment of flexure that the common vertical force for bearing top and the bottom structure, horizontal force and horizontal force generate, on the one hand,
It ensure that the bearing capacity and stability requirement of composite base structure, on the other hand, pile sinking be embedded in using steel-pipe pile 1 and is more held
The mode of easy supporting course 6, reduces the embedded depth of steel-pipe pile 1, also can be pre- for perfusion wadding weft variation 2 and borehole anchorage
Stress anchor cable 3 provides execution conditions, is anchored at pile sinking difficulty using prestress anchorage cable 3 but drilling is relatively easy to micro- weathered rock formation
7, the construction efficiency of embedding rock is substantially increased, the construction risk of embedding rock is reduced, reduces difficulty of construction and operating expenses.
In order to which preferably anchoring prestress anchor cable 3, composite base structure further include steel anchor box 4, steel anchor box 4 is set to steel-pipe pile
On 1 inner wall, 3 top of prestress anchorage cable is anchored on steel anchor box 4, and referring to figure 1 and figure 2, in the present embodiment, steel anchor box 4 is
The coaxial circular ring structure with steel-pipe pile 1, outer diameter and 1 internal diameter of steel-pipe pile are adapted, and prestress anchorage cable 3 is circumferential uniformly along steel-pipe pile 1
Distribution, it is ensured that steel-pipe pile 1 will not be tilted because of discontinuity.
In the present embodiment, 1 diameter of steel-pipe pile is 6~10m, and wall thickness is not less than 60mm, and 2 thickness of wadding weft variation is not less than
6m, prestress anchorage cable 3 use prestress wire.
Composite base structure provided by the embodiment of the utility model can be designed as soldier piles as the case may be, can also set
It is calculated as taper pile.When composite base structure is designed as soldier piles, as shown in Figure 1, steel-pipe pile 1 is threaded through the holding force of marine site vertically
In layer 6, prestress anchorage cable 3 is mounted in vertically in micro- weathered rock formation 7 of marine site, and several steel-pipe piles 1 form one group, in top surface
The sectional dimension of upper setting blower fan structure, each steel-pipe pile 1 is identical, and the distance that top is higher by sea level 8 is identical.
When composite base structure is designed as taper pile, angle is all had between several steel-pipe piles 1 and marine site, and several
1 top surface of steel-pipe pile is assembled to centre, and the Space Cross Section that several steel-pipe piles 1 surround from top to bottom is gradually increased, and top height goes to sea
The distance of plane 8 is identical.
Referring to described in Fig. 1, the utility model embodiment additionally provides the composite foundation knot suitable for marine wind electric field fan
The construction method of structure, includes the following steps:
S1: operation platform is set using hydromotive equipments such as barge, crane barges；
S2: utilizing operation platform, inserting piling steel-pipe pile 1, until steel-pipe pile 1 is placed in the length in supporting course 6 into coating 5
Meet the design altitude of 1 bottom end of steel-pipe pile；
S3: to clear base is carried out inside steel-pipe pile 1, in steel-pipe pile 1, wadding weft variation 2 is cast on supporting course 6；
S4: carrying out the drilling construction of prestress anchorage cable 3 in micro- weathered rock formation 7, until drilling is located in micro- weathered rock formation 7
Length meets the design altitude of 3 bottom end of prestress anchorage cable；Drilling passes through wadding weft variation 2 and supporting course 6 from top to bottom, and enters
Micro- weathered rock formation 7.
S5: by 3 bottom end build-in of prestress anchorage cable in the drilling of micro- weathered rock formation 7, and slip casing by pressure envelope is carried out to drilling
It closes；
S6: after the concrete strength of inside hole to be drilled is met the requirements, by 3 top stretch-draw anchor of prestress anchorage cable in steel-pipe pile
On 1 inner wall.
In the present embodiment, before the anchoring of 3 top of prestress anchorage cable, steel anchor box 4 first is installed in 1 inner wall of steel-pipe pile, then will
3 top of prestress anchorage cable is anchored on steel anchor box 4.
There is method provided in this embodiment easy construction, quality can guarantee, project amount saves, bearing capacity is big, stability
Advantages and the features such as good, good in economic efficiency, adaptation offshore construction, with wide application and development prospect.
The utility model is not limited to above embodiment, for those skilled in the art, not
Under the premise of being detached from the utility model principle, several improvements and modifications can also be made, these improvements and modifications are also considered as this reality
Within novel protection scope.The content being not described in detail in this specification belongs to well known to professional and technical personnel in the field
The prior art.
Claims (7)
1. a kind of composite base structure suitable for marine wind electric field fan, characterized in that it comprises:
Steel-pipe pile (1), steel-pipe pile (1) bottom end are threaded through in the supporting course (6) of marine site；
Wadding weft variation (2), the wadding weft variation (2) pour and are placed in the supporting course (6) in the steel-pipe pile (1)
On；
More prestress anchorage cables (3), prestress anchorage cable (3) top are anchored on the steel-pipe pile (1) inner wall, and bottom end passes through
The wadding weft variation (2) and build-in are in micro- weathered rock formation (7) of marine site.
2. being suitable for the composite base structure of marine wind electric field fan as described in claim 1, it is characterised in that: described compound
Foundation structure further includes steel anchor box (4), and the steel anchor box (4) is set on the steel-pipe pile (1) inner wall, the prestress anchorage cable
(3) top is anchored on the steel anchor box (4).
3. being suitable for the composite base structure of marine wind electric field fan as claimed in claim 1 or 2, it is characterised in that: described
Prestress anchorage cable (3) is circumferentially uniformly distributed along the steel-pipe pile (1).
4. being suitable for the composite base structure of marine wind electric field fan as described in claim 1, it is characterised in that: the steel pipe
Stake (1) diameter is 6~10m, and wall thickness is not less than 60mm.
5. being suitable for the composite base structure of marine wind electric field fan as described in claim 1, it is characterised in that: described to fill out core
Concrete (2) thickness is not less than 6m.
6. being suitable for the composite base structure of marine wind electric field fan as described in claim 1, it is characterised in that: described pre- to answer
Power anchor cable (3) uses prestress wire.
7. being suitable for the composite base structure of marine wind electric field fan as described in claim 1, it is characterised in that: the steel pipe
Stake (1) is threaded through in the supporting course (6) of marine site vertically, and the prestress anchorage cable (3) is mounted in the micro- of marine site vertically
In weathered rock formation (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821689677.0U CN209082546U (en) | 2018-10-17 | 2018-10-17 | A kind of composite base structure suitable for marine wind electric field fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821689677.0U CN209082546U (en) | 2018-10-17 | 2018-10-17 | A kind of composite base structure suitable for marine wind electric field fan |
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| CN209082546U true CN209082546U (en) | 2019-07-09 |
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| CN201821689677.0U Active CN209082546U (en) | 2018-10-17 | 2018-10-17 | A kind of composite base structure suitable for marine wind electric field fan |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208630A (en) * | 2018-10-17 | 2019-01-15 | 中铁大桥局集团有限公司 | A kind of composite base structure and construction method suitable for marine wind electric field fan |
| CN115404897A (en) * | 2022-10-08 | 2022-11-29 | 中国电建集团成都勘测设计研究院有限公司 | Construction method of marine composite foundation |
-
2018
- 2018-10-17 CN CN201821689677.0U patent/CN209082546U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208630A (en) * | 2018-10-17 | 2019-01-15 | 中铁大桥局集团有限公司 | A kind of composite base structure and construction method suitable for marine wind electric field fan |
| CN115404897A (en) * | 2022-10-08 | 2022-11-29 | 中国电建集团成都勘测设计研究院有限公司 | Construction method of marine composite foundation |
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