CN204282390U - For the steel concrete-steel structure mixing gravity type foundation of offshore wind farm - Google Patents
For the steel concrete-steel structure mixing gravity type foundation of offshore wind farm Download PDFInfo
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- CN204282390U CN204282390U CN201420673962.9U CN201420673962U CN204282390U CN 204282390 U CN204282390 U CN 204282390U CN 201420673962 U CN201420673962 U CN 201420673962U CN 204282390 U CN204282390 U CN 204282390U
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Abstract
The utility model discloses a kind of steel for offshore wind farm concrete-steel structure mixing gravity type foundation, comprise the steel supporting construction on caisson base and top, described caisson base is gravity steel bar concrete cavity structure, described steel supporting construction is fixed on caisson base, steel supporting construction top is provided with the discharge ring be connected with blower fan tower barrel, described caisson base and/or steel supporting construction is provided with the passage of pouring water of the cavity being communicated to described caisson base.The invention also discloses the construction method of a kind of steel for offshore wind farm concrete-steel structure type gravity mixed foundation.The utility model is compared with common conduit frame and single-pile foundation, the advantage of reinforced concrete structure and steel work is combined, based on steel bar concrete cavity structure, base, steel work are as upper support structure, without the need to pile foundation, basis makes and overall package by land, and natural buoyancy can be relied on to install, easy construction, save the duration, good economy performance, is at sea with a wide range of applications in wind energy project.
Description
Technical field
The utility model belongs to the technical field of offshore wind power foundation engineering, is specifically related to a kind of steel for offshore wind farm concrete-steel structure mixing gravity type foundation.
Background technology
Offshore wind power foundation engineering is because at sea constructing, large by effect of natural conditions, and operating mode is comparatively severe, have scene can the construction operation time short, difficulty of construction large, the feature such as at the bottom of efficiency.
At present, jacket and single large diameter steel pipe pile are the base_structure types that offshore wind farm is conventional.Jacket is steel truss structure, has that rigidity is large, good stability, the advantage such as comparatively to save with material.But jacket is using pile foundation as supporting construction, pile foundation construction needs pile follower under water, and difficulty of construction is comparatively large, high to equipment requirement; When adopt the construction technology of jacket is installed after first pile sinking time, it is quite difficult that jacket installs contraposition under water; If during the embedding rock of pile foundation need, not only difficulty of construction is large, long construction period, and engineering cost is also quite high.
The form of structure of single large diameter steel pipe pile is simple, and speed of application is fast, and aquatic work amount is little.But single pile structure section is large, wall thickness large, from great, rolled steel dosage is large, and require higher to lifting, pile driving equipment, operating expenses is higher; In addition, single pile structure is not adapted at the area needing the embedding rock construction of pile foundation at present, because Big-Diameter Rock-Embedded Pile difficulty of construction is large, and construction machinery is little, and operating expenses is very high.
Above-mentioned discussion content object be to reader introduce may to below by the various aspects of technology relevant for the various aspects of the present utility model be described and/or advocate, believe that this discussion content contributes to for reader with background's information, to be conducive to understanding content of the present utility model better.
Utility model content
The purpose of this utility model is avoid deficiency of the prior art and provide a kind of steel for offshore wind farm concrete-steel structure mixing gravity type foundation, and it is without the need to pile foundation of constructing, and basis is integral manufacturing by land, convenient construction, save the duration, overall economics is good, is applicable to basement rock and buries more shallow marine site.
In order to overcome prior art deficiency, the technical solution adopted in the utility model is: provide a kind of steel for offshore wind farm concrete-steel structure mixing gravity type foundation, comprise the steel supporting construction on caisson base and top, described caisson base is gravity steel bar concrete cavity structure, described steel supporting construction is fixed on caisson base, steel supporting construction top is provided with the discharge ring be connected with blower fan tower barrel, described caisson base and/or steel supporting construction is provided with the passage of pouring water of the cavity being communicated to described caisson base.
Wherein, described steel supporting construction is jacket, and caisson base is provided with the supporting leg firm banking corresponding with the supporting leg of jacket, described supporting leg is fixed on supporting leg fixed bearing.
Wherein, the lower end of described supporting leg is embedded in the inside of supporting leg firm banking, or described supporting leg is connected with the pre-buried steel Member Welding on supporting leg firm banking top.
Wherein, described in passage of pouring water be made up of the endoporus of the irrigation pipe on the wall being arranged on described caisson base and supporting leg, described irrigation pipe one end and cavity connects, the other end is communicated with the endoporus lower end of supporting leg.
Wherein, described steel supporting construction is single large diameter steel pipe, and the top cover central authorities of caisson base are provided with steel pipe firm banking, and the lower end of described large diameter steel pipe is embedded in steel pipe firm banking.
Wherein, described in passage of pouring water be made up of the endoporus of described large diameter steel pipe, the endoporus lower end of large diameter steel pipe and the cavity connects of described caisson base.
Wherein, described caisson base is circular or regular polygon caisset, and its top cover is tapered slope or sphere curved surface.
Wherein, described caisson base is provided with ribs.
Wherein, the base plate of described caisson base is provided with the bedding grout hole that can close or take apart.
Wherein, the top cover of described caisson base is provided with the backfill hole that can close or take apart.
The beneficial effects of the utility model: the advantage of reinforced concrete structure and steel work combines by this foundation structure, based on steel bar concrete cavity structure, base, steel work are as upper support structure, without the need to pile foundation of constructing, avoid the working procedure that pile foundation pile sinking, embedding rock etc. are numerous and diverse.Whole basis makes assembling by land, good integrity, natural buoyancy can be relied on to install, without the need to large-scale crane ship, just can sinking install after only need excavating ground top layer weak soil and construction bedding, Contraction in Site is simple, technical maturity, difficulty of construction is less, and the duration economizes, and is applicable to bearing stratum and buries more shallow sea area.In a word, this foundation structure batch production degree is high, integration good, simple and easy quick, good economy performance of constructing, and has broad application prospects in ocean engineering.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is the structural representation of the steel concrete-steel structure mixing gravity type foundation embodiment one for offshore wind farm.
Fig. 2 is A-A schematic cross-section in Fig. 1.
Fig. 3 is B-B schematic cross-section in Fig. 2.
Fig. 4 is the structural representation of the steel concrete-steel structure mixing gravity type foundation embodiment two for offshore wind farm.
Fig. 5 is C-C schematic cross-section in Fig. 4.
Fig. 6 is D-D schematic cross-section in Fig. 5.
Detailed description of the invention
The technical solution of the utility model is understood better in order to make those skilled in the art, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, it should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Core of the present utility model is to provide a kind of steel for offshore wind farm concrete-steel structure mixing gravity type foundation, and its batch production degree is high, integration good, simple and easy quick, good economy performance of constructing.
As shown in Figure 1, 2, 3, a kind of concrete of the steel for offshore wind farm-steel structure mixing gravity type foundation that the utility model embodiment one provides, comprise the caisson base 11 of bottom and the steel supporting construction on top, steel supporting construction is jacket 13, jacket 13 is steel truss structure, has multiple supporting leg 16.Caisson base 11 is gravity steel bar concrete cavity structure, can be circle or regular polygon, the supporting leg firm banking 17 corresponding with the supporting leg 16 of jacket 13 is provided with inside the outer wall 22 of caisson base 11, jacket 13 is connected and fixed on caisson base 11 by supporting leg 16 and supporting leg firm banking 17, and the top of jacket 13 is provided with the discharge ring 15 be connected with blower fan tower barrel.
As preferred embodiment, the lower end of the supporting leg 16 of jacket 13 is embedded in the inside of supporting leg firm banking 17, and caisson base 11 is fixedly connected with jacket 13.Or supporting leg 16 is connected with the pre-buried steel Member Welding on supporting leg firm banking 17 top, be convenient to caisson base 11 and jacket 13 separately making like this, secondary is assembled.Above-mentioned two kinds of fixed forms all have irrigation pipe 18 that supporting leg 16 endoporus and caisson base 11 cavity connects are formed passage of pouring water, and are convenient to caisson base 11 sunk type and pour water.
As preferred embodiment, the top cover 21 of caisson base 11 can be tapered slope or sphere curved surface, and top cover 21 central authorities are reserved can be closed and the backfill hole 24 of taking apart, Cast-in-situ Piles in Sand-filling building stones after the installation of convenient basis.
As preferred embodiment, the side of the base plate 23 of described caisson base 11, outer wall 22, top cover 21 upper plenum is provided with ribs 19, to strengthen intensity, the rigidity of caisson base 11.
As preferred embodiment, the base plate 23 of described caisson base 11 is provided with closed bedding grout hole 20, after can meeting basis installation, bedding is carried out to the needs of pressure grouting.
As shown in Figure 4,5, 6, the another kind that the utility model embodiment two provides, for the steel concrete-steel structure mixing gravity type foundation of offshore wind farm, comprises caisson base 11 and the top steel supporting construction of bottom.The large diameter steel pipe 14 that steel supporting construction is, caisson base 11 is gravity steel bar concrete cavity structure, can be circle or regular polygon, its top cover 21 is tapered slope, the lower end of large diameter steel pipe 14 is embedded within the steel pipe firm banking 26 of top cover 21 central authorities, and its top is provided with the discharge ring 15 be connected with blower fan tower barrel.
As preferred embodiment, the base plate 23 of described caisson base 11, outer wall 22, top cover 21 are provided with ribs 19, to strengthen the intensity of foundation structure.
As preferred embodiment, the base plate 23 of described caisson base 11 is provided with closed bedding grout hole 20, after can meeting basis installation, bedding is carried out to the needs of pressure grouting.
In order to implement the concrete of the steel for offshore wind farm for offshore wind farm-steel structure mixing gravity type foundation as shown in Figures 1 to 6, the utility model embodiment still provides a kind of construction method, comprises the steps:
S1, make the steel supporting construction of band discharge ring 15 in factory process, land fabrication caisson base 11, and steel supporting construction and caisson base 11 are formed overall structure;
S2, the ground of wind power foundation is carried out dredging etc. process, form the bedding 25 of preset planeness;
S3, envelope storehouse is carried out, the lower water in basis to the reserved backfill hole 24 of foundation structure, bedding grout hole 20, utilize half to dive barge or rely on self buoyancy basic that basis is transported to scene by crane ship and tugboat.
Behind S4, location, through pouring water, passage to be poured water sinking basis to caisson base cavity inside, and basis is accurately seated on bedding 25.
S5, in caisson base 11 chamber, fill with sand or rubble by the reserved backfill hole 24 of top cover or large diameter steel pipe 14.
S6, the tower cylinder of offshore wind farm unit is installed by the discharge ring 15 at steel supporting construction top.
Wherein, after step s4 the bedding grout hole 20, before S5, if needed, by base plate is arranged utilizes reserved grout pipe to carry out pressure grouting to bedding 25.
A lot of detail has been set forth so that fully understand the utility model in description above; but; the utility model can also adopt other to be different from other similar fashion described here and implement, and therefore, can not be interpreted as the restriction to the utility model protection domain.
Claims (10)
1. the concrete of the steel for offshore wind farm-steel structure mixing gravity type foundation, it is characterized in that: the steel supporting construction comprising caisson base (11) and top, described caisson base (11) is gravity steel bar concrete cavity structure, described steel supporting construction is fixed on caisson base (11), steel supporting construction top is provided with the discharge ring (15) be connected with blower fan tower barrel, described caisson base (11) and/or steel supporting construction is provided with the passage of pouring water of the cavity being communicated to described caisson base (11).
2. the concrete of the steel for offshore wind farm according to claim 1-steel structure mixing gravity type foundation, it is characterized in that: described steel supporting construction is jacket (13), caisson base (11) is provided with the supporting leg firm banking (17) corresponding with the supporting leg of jacket (13) (16), described supporting leg (16) is fixed on supporting leg fixed bearing (17).
3. the concrete of the steel for offshore wind farm according to claim 2-steel structure mixing gravity type foundation, it is characterized in that: the lower end of described supporting leg (16) is embedded in the inside of supporting leg firm banking (17), or described supporting leg (16) is connected with the pre-buried steel Member Welding on supporting leg firm banking (17) top.
4. the concrete of the steel for offshore wind farm according to claim 2-steel structure mixing gravity type foundation, it is characterized in that: described in passage of pouring water be made up of the endoporus of the irrigation pipe (18) on the wall being arranged on described caisson base (11) and supporting leg (16), described irrigation pipe (18) one end and cavity connects, the other end is communicated with the endoporus lower end of supporting leg (16).
5. the concrete of the steel for offshore wind farm according to claim 1-steel structure mixing gravity type foundation, it is characterized in that: described steel supporting construction is single large diameter steel pipe (14), top cover (21) central authorities of caisson base (11) are provided with steel pipe firm banking (26), and the lower end of described large diameter steel pipe (14) is embedded in steel pipe firm banking (26).
6. the concrete of the steel for offshore wind farm according to claim 5-steel structure mixing gravity type foundation, it is characterized in that: described in passage of pouring water be made up of the endoporus of described large diameter steel pipe (14), the endoporus lower end of large diameter steel pipe (14) and the cavity connects of described caisson base (11).
7. the concrete of the steel for offshore wind farm according to any one of claim 1 to 6-steel structure mixing gravity type foundation, it is characterized in that: described caisson base (11) is circular or regular polygon caisset, and its top cover (21) is tapered slope or sphere curved surface.
8. the concrete of the steel for offshore wind farm according to any one of claim 1 to 6-steel structure mixing gravity type foundation, is characterized in that: described caisson base (11) is provided with ribs (19).
9. the concrete of the steel for offshore wind farm according to any one of claim 1 to 6-steel structure mixing gravity type foundation, is characterized in that: the base plate (23) of described caisson base (11) is provided with the bedding grout hole (20) that can close or take apart.
10. the concrete of the steel for offshore wind farm according to any one of claim 1 to 6-steel structure mixing gravity type foundation, is characterized in that: the top cover (21) of described caisson base (11) is provided with the backfill hole (24) that can close or take apart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673962.9U CN204282390U (en) | 2014-11-11 | 2014-11-11 | For the steel concrete-steel structure mixing gravity type foundation of offshore wind farm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673962.9U CN204282390U (en) | 2014-11-11 | 2014-11-11 | For the steel concrete-steel structure mixing gravity type foundation of offshore wind farm |
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| CN204282390U true CN204282390U (en) | 2015-04-22 |
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| CN201420673962.9U Withdrawn - After Issue CN204282390U (en) | 2014-11-11 | 2014-11-11 | For the steel concrete-steel structure mixing gravity type foundation of offshore wind farm |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389318A (en) * | 2014-11-11 | 2015-03-04 | 熊翱 | Reinforced concrete-steel structure hybrid gravity foundation for offshore wind power and construction method thereof |
| CN105672322A (en) * | 2016-01-13 | 2016-06-15 | 中建筑港集团有限公司 | Sealing system between bottom-carried component and underwater concrete foundation bed and construction method thereof |
| CN106120838A (en) * | 2016-06-30 | 2016-11-16 | 河北省电力勘测设计研究院 | A kind of basic constructional design method of the gravity type spread foundation of vertical shaft fan |
-
2014
- 2014-11-11 CN CN201420673962.9U patent/CN204282390U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389318A (en) * | 2014-11-11 | 2015-03-04 | 熊翱 | Reinforced concrete-steel structure hybrid gravity foundation for offshore wind power and construction method thereof |
| CN104389318B (en) * | 2014-11-11 | 2017-05-17 | 熊翱 | Reinforced concrete-steel structure hybrid gravity foundation for offshore wind power and construction method thereof |
| CN105672322A (en) * | 2016-01-13 | 2016-06-15 | 中建筑港集团有限公司 | Sealing system between bottom-carried component and underwater concrete foundation bed and construction method thereof |
| CN106120838A (en) * | 2016-06-30 | 2016-11-16 | 河北省电力勘测设计研究院 | A kind of basic constructional design method of the gravity type spread foundation of vertical shaft fan |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20170517 |
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| AV01 | Patent right actively abandoned |