CN204151817U - A kind of caisson anchoring type blower foundation - Google Patents
A kind of caisson anchoring type blower foundation Download PDFInfo
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- CN204151817U CN204151817U CN201420594687.1U CN201420594687U CN204151817U CN 204151817 U CN204151817 U CN 204151817U CN 201420594687 U CN201420594687 U CN 201420594687U CN 204151817 U CN204151817 U CN 204151817U
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Abstract
The utility model relates to caisson type blower foundation, particularly a kind of caisson anchoring type blower foundation, comprise concrete caisson, for connecting the bindiny mechanism of concrete caisson and concrete caisson top tower cylinder, described bindiny mechanism comprises many groups and vertically embeds bolt assembly in concrete caisson, and all bolt assemblies are rounded centered by the vertical central axis of concrete caisson in concrete caisson is uniformly distributed.Caisson anchoring type blower foundation described in the utility model, short construction period, globality is better, easy construction, adopt bolt assembly than the blower foundation of pre-embedded foundation ring, reinforcing bar and concrete amount can be saved to a certain extent, blower foundation construction quality and programming all obtain larger raising, improve stability and the economy of whole foundation structure, and reduce the diameter of tower cylinder root stack shell to a certain extent, solve a transport difficult problem for tower cylinder, make caisson anchoring type basis be promoted in offshore wind farms field and apply.
Description
Technical field
The utility model relates to caisson type blower foundation, particularly a kind of caisson anchoring type blower foundation.
Background technology
Wind energy turbine set basic engineering field at sea, when the depth of water is general, sea bed is basement rock matter, conventional pile foundation cannot adopt because stake can not get through, Conventional gravity formula basis is due to the relation of the depth of water, cost is too high, caisson anchoring type blower foundation because of structure be carry out integrated prefabricated at port and pier, greatly shorten the construction period of offshore wind farms, save construction cost, simultaneously structure stress is more excellent and cost is lower, compare other foundation pattern, caisson anchoring type blower foundation has fabulous application prospect in this type of marine site.
Existing blower foundation all to adopt in concrete caisson pre-embedded foundation ring to connect concrete caisson and concrete caisson top tower cylinder, for ensureing that discharge ring buried depth causes the structure stress of concrete caisson unreasonable, and a large amount of reinforcing bar must be configured and meet force request, reinforcing bar and concrete amount are large, blower foundation construction quality and programming low.
Present stage, wind-power electricity generation acc power improved rapidly, and each blower fan manufacturer has all released one after another the blower fan model machine of 3MW, 5MW, 6MW, and more powerful blower fan is also in the middle of development.Along with the raising of power of fan, the load of blower fan is also doubled and redoubled.The blower fan tower barrel flange in the bottom diameter of the sharp wind-powered electricity generation 3MW110m of China is more than 5m, and the ultimate bending moment of tower cylinder base load has reached 160,000 kNm, and the ultimate bending moment of 5MW110m offshore fan tower barrel base load is close to 220,000 kNm.The increase of blower fan load, the syndeton of existing basic ring type can not meet the increase of the blower foundation caisson scale of construction.
Summary of the invention
The purpose of this utility model is, not enough for prior art, provides a kind of caisson anchoring type blower foundation, and integral rigidity is large, saves reinforcing bar and concrete amount, makes blower foundation construction quality and programming all obtain larger raising.
The technical solution of the utility model is, a kind of caisson anchoring type blower foundation, comprise concrete caisson, for connecting the bindiny mechanism of concrete caisson and concrete caisson top tower cylinder, described bindiny mechanism comprises many groups and vertically embeds bolt assembly in concrete caisson, and all bolt assemblies are rounded centered by the vertical central axis of concrete caisson in concrete caisson is uniformly distributed.
Utilize bolt assembly to substitute discharge ring to realize tower cylinder and be connected with basic caisson, when blower foundation bears the eccentric bending moment transmitted from tower cylinder, tension side, blower foundation end face side pressurized.Bolt assembly is by pull transfer to foundation bed, and pressure is delivered to whole concrete caisson by basic end face concrete.Adopting the form of structure of bolt assembly, basic engineering buried depth can be made to change more flexible, the sacrificial structure receive strength rationality because adjusting embedded depth of foundation can not being caused as pre-embedded foundation ring, and a large amount of reinforcing bar must be configured meet force request.
The end anchoring ring that described bolt assembly comprises stone bolt, is located at the top anchoring ring of concrete caisson end face, is located at concrete caisson inside, in the pre-buried structure Transducers Embedded in Concrete caisson of described stone bolt, and the screw rod of stone bolt is through end anchoring ring and by fastening nuts, between described top anchoring ring and end anchoring ring, connecting bolt is installed.Dacroment preservative treatment is carried out to stone bolt surface, and the sharp edge of removably foot bolt and annex thereof.Before the concrete of concreting caisson, first stone bolt is installed and location in foundation bottom.During installation, need, between the nut located on the downside of end anchoring ring and anchoring ring, packing ring is installed.
Often organize bolt assembly and include two connecting bolts, and two connecting bolts are that axisymmetrical is installed with stone bolt.
Caisson anchoring type blower foundation described in the utility model, short construction period, globality is better, easy construction, adopt bolt assembly than the blower foundation of pre-embedded foundation ring, reinforcing bar and concrete amount can be saved to a certain extent, blower foundation construction quality and programming all obtain larger raising, improve stability and the economy of whole foundation structure, and reduce the diameter of tower cylinder root stack shell to a certain extent, solve a transport difficult problem for tower cylinder, make caisson anchoring type basis be promoted in offshore wind farms field and apply.
Accompanying drawing explanation
Fig. 1 is the structural representation of blower foundation described in the utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the structural representation of bolt assembly.
detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of caisson anchoring type blower foundation, comprise concrete caisson, for connecting the bindiny mechanism of concrete caisson and concrete caisson top tower cylinder, bindiny mechanism comprises 80 groups of bolt assemblies 2 vertically embedded in concrete caisson, and all bolt assemblies 2 are rounded centered by concrete caisson 1 vertically central axis in concrete caisson 1 is uniformly distributed.
As shown in Figure 3, the end anchoring ring 6 that bolt assembly comprises stone bolt 4, is located at the top anchoring ring 5 of concrete caisson 1 end face, is located at concrete caisson 1 inside, in the pre-buried structure 8 Transducers Embedded in Concrete caisson 1 of described stone bolt 4, and the screw rod of stone bolt 4 passes end anchoring ring 6 and passes through fastening nuts, between top anchoring ring 5 and end anchoring ring 6,2 connecting bolts 7 are installed, and two connecting bolts 7 with stone bolt 4 for axisymmetrical installation.
Claims (3)
1. a caisson anchoring type blower foundation, comprise concrete caisson, for connecting the bindiny mechanism of concrete caisson and concrete caisson top tower cylinder, it is characterized in that, described bindiny mechanism comprises many groups and vertically embeds bolt assembly (2) in concrete caisson, and all bolt assemblies (2) are rounded centered by the vertical central axis of concrete caisson (1) concrete caisson (1) in is uniformly distributed.
2. caisson anchoring type blower foundation according to claim 1, it is characterized in that, described bolt assembly comprises stone bolt (4), is located at the top anchoring ring (5) of concrete caisson (1) end face, is located at the inner end anchoring ring (6) of concrete caisson (1), in the pre-buried structure Transducers Embedded in Concrete caisson (1) of described stone bolt (4), and the screw rod of stone bolt (4) is through end anchoring ring (6) and by fastening nuts, between described top anchoring ring (5) and end anchoring ring (6), connecting bolt (7) is installed.
3. caisson anchoring type blower foundation according to claim 2, is characterized in that, often organizes bolt assembly and includes two connecting bolts (7), and two connecting bolts (7) with stone bolt (4) for axisymmetrical is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594687.1U CN204151817U (en) | 2014-10-15 | 2014-10-15 | A kind of caisson anchoring type blower foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594687.1U CN204151817U (en) | 2014-10-15 | 2014-10-15 | A kind of caisson anchoring type blower foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204151817U true CN204151817U (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420594687.1U Active CN204151817U (en) | 2014-10-15 | 2014-10-15 | A kind of caisson anchoring type blower foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204151817U (en) |
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2014
- 2014-10-15 CN CN201420594687.1U patent/CN204151817U/en active Active
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