CN208167774U - A kind of open caisson fan foundation structure can be used for soft clay area - Google Patents
A kind of open caisson fan foundation structure can be used for soft clay area Download PDFInfo
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- CN208167774U CN208167774U CN201820283196.3U CN201820283196U CN208167774U CN 208167774 U CN208167774 U CN 208167774U CN 201820283196 U CN201820283196 U CN 201820283196U CN 208167774 U CN208167774 U CN 208167774U
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- cushion cap
- mixed mud
- open caisson
- foundation
- soft clay
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of open caisson fan foundation structure that can be used for soft clay area, including well foundation, mixed mud cushion cap, anchorage and several screw arbor assemblies, well foundation sinks down at pre-designed absolute altitude and fixes, concrete sealing bottom is arranged in bottom, mixed mud cushion cap seals well foundation, all screw arbor assemblies are embedded in mixed mud cushion cap in advance, each screw arbor assembly includes screw rod and nut, anchorage is fixed in mixed mud cushion cap, the lower end of all screw rods is fixed by anchorage, and the tower that mixed mud cushion cap upper surface connects blower by nut is stretched out in upper end.The beneficial effects of the utility model：Period easy for construction is short, low cost, highly-safe, suitable for Soft Soils such as sand, clay, collapsible loess, mud, muck soils, buried depth can be very big, globality is strong, stability is good, there is biggish loaded area, it can bear biggish vertical load and horizontal loading, when construction of Open Caisson Foundation influences close to buildings smaller.
Description
Technical field
The utility model relates to wind-powered electricity generation technical field of power generation more particularly to a kind of open caisson blower bases that can be used for soft clay area
Plinth structure.
Background technique
With the rapid growth of China's installed capacity of wind-driven power, blower the Enlargement Tendency is accelerated, in the process of construction of wind power plant
The safety of blower foundation, the cost of Construction of Wind Power, Construction of Wind Power period be serious to affect wind power plant
Economy, expensive conventional fan base form has seriously constrained the sound development of wind-powered electricity generation place, using novel blower base
Plinth is the inexorable trend of wind-powered electricity generation industry development.In soft clay area, current industry only has prestressed cylinder-shaped basis and traditional pile foundation,
Both blower foundations all have the shortcomings that the construction time is long and cost is more expensive, and well foundation buried depth is larger, globality and stabilization
Property it is good, have biggish loaded area, biggish vertically and horizontally load can be born, introduce blower currently without by well foundation
Basic activity.
Utility model content
In view of this, the embodiments of the present invention provide a kind of open caisson blower foundation knot that can be used for soft clay area
Structure.
The embodiments of the present invention provide a kind of open caisson fan foundation structure that can be used for soft clay area, including open caisson base
Plinth, mixed mud cushion cap, anchorage and several screw arbor assemblies, the well foundation sink down at pre-designed absolute altitude and fix, bottom setting
Concrete sealing bottom, the mixed mud cushion cap seal the well foundation, and all screw arbor assemblies are embedded in the mixed mud cushion cap in advance
Interior, each screw arbor assembly includes screw rod and nut, and the anchorage is fixed in the mixed mud cushion cap, under all screw rods
End is fixed by the anchorage, and the tower that mixed mud cushion cap upper surface connects blower by the nut is stretched out in upper end.
Further, the well foundation is upper lower open mouth hollow well tubular structure, including the borehole wall, the borehole wall lower end are set
There is a blade foot, the well foundation, which is sunk down at pre-designed absolute altitude, is fixed on ground by the blade foot, inside the well foundation
Equipped with partition wall, the concrete sealing bottom is fixed in the partition wall lower end, and upper end supports the mixed mud cushion cap.
Further, the well foundation is connected and fixed with the mixed mud cushion cap with reinforcing bar.
Further, the screw surface is wrapped in PE pipe.
Further, the screw rod outer surface is equipped with F-C paint erosion resistant coating.
Further, the mixed mud cushion cap is circle, and all screw arbor assemblies are arranged in mixed mud cushion cap center
For two concentric circles in the center of circle, the screw arbor assembly on two concentric circles is uniformly distributed, the upper end of all screw rods sequentially pass through ring and
It limits and fixes after ring flange.
Further, the anchorage is base ring.
The embodiments of the present invention provide technical solution bring beneficial effect be：The utility model one kind can be used for
The open caisson fan foundation structure period easy for construction of soft clay area is short, low cost, highly-safe, when well foundation is sufficiently large,
Suitable for Soft Soils such as sand, clay, collapsible loess, mud, muck soils.Buried depth can be very big, whole
Property is strong, stability is good, there is biggish loaded area, can bear biggish vertical load and horizontal loading, when construction of Open Caisson Foundation
Close to buildings is influenced smaller.
Detailed description of the invention
Fig. 1 is a kind of front sectional view for the open caisson fan foundation structure that can be used for soft clay area of the utility model；
Fig. 2 is a kind of top view for the open caisson fan foundation structure that can be used for soft clay area of the utility model；
Fig. 3 is the front sectional view of well foundation 1 in the utility model Fig. 1；
Fig. 4 is the structural schematic diagram of screw arbor assembly 3 in the utility model Fig. 1.
In figure：1- well foundation, 2- mixed mud cushion cap, 3- screw arbor assembly, the 4- borehole wall, 5- blade foot, 6- mixed mud back cover, 7-
Partition wall, 31- screw rod, 32- nut, 33- base ring, 34- support column, the upper ring of 35-, 36- ring flange.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is further described.
FIG. 1 to FIG. 4 is please referred to, the embodiments of the present invention provide a kind of open caisson blower base that can be used for soft clay area
Plinth structure, including well foundation 1, round mixed mud cushion cap 2 and several screw arbor assemblies 3, the well foundation 1 are that upper lower open mouth is empty
Heart well tubular structure, including the borehole wall 4,4 lower end of the borehole wall are equipped with blade foot 5, the material selection of the borehole wall 4 and the blade foot 5
Concrete material is C15~C50, and the borehole wall 4 sinks down into pre-designed mark with a thickness of 500mm~1500mm, the well foundation 1
Eminence is fixed on ground by the blade foot 5, and concrete sealing bottom 6, the concrete bearing platform 2 is arranged in 1 bottom of well foundation
Height be 2~5m, diameter is 6~12m, and concrete material is C40~C60 high-strength concrete, and the concrete bearing platform 2 can be with
To be prefabricated or cast-in-place, the well foundation 1 is connected and fixed sealing, the well foundation 1 with reinforcing bar with the mixed mud cushion cap 2
The mixed mud cushion cap 2 is supportted, partition wall 7, mixed mud described in the 7 upper end Auxiliary support of partition wall are equipped with inside the well foundation 1
Cushion cap 2, the concrete sealing bottom 6 is fixed in lower end, to prevent in Groundwater infiltration well, the material one of the concrete sealing bottom 6
As choose concrete material be C15~C40.
All screw arbor assemblies 3 are embedded in advance in the mixed mud cushion cap 2 and by anchorage, and all screw arbor assemblies 3 are arranged in
Using 2 center of mixed mud cushion cap as two concentric circles in the center of circle, the screw arbor assembly 3 on two concentric circles is uniformly distributed, each described
Screw arbor assembly 3 includes screw rod 31 and nut 32, and then 31 outer surface of screw rod is wrapped up brushed with F-C paint erosion resistant coating with PE pipe, institute
Stating 31 material of screw rod is 42CrMo steel alloy, and model M36~M64 guarantees that 31 service life of screw rod is not less than 20 years, institute
Stating anchorage is base ring 33, and the base ring 33 is embedded in advance in the mixed mud cushion cap 2, the 33 bottom attachment support column 34 of base ring,
34 lower end of support column is supported in the concrete bearing platform 2, and the lower end of all screw rods 31 is consolidated after both passing through the base ring 33
Fixed, upper end sequentially passes through ring 35 after stretching out the mixed mud cushion cap 2 and the limit of ring flange 36 is fixed, and passes through the spiral shell
Mother 32 connects the tower of blower.
When the 31 top blower of screw rod transmits huge moment of flexure, it can sufficiently, repeatedly utilize steel elasticity strong first
Amplitude is spent, screw rod 31 passes through negative stress → zero stress → direct stress → design strength stress process, reaches structural bearing capacity end
Value, to improve structural-load-carrying capacity.The foundation structure easier can be resisted and be transmitted by top blower tall and slender structure
Huge bending moment further increases the support force of the foundation structure and the effect of resist torque, in terms of foundation bearing characteristic, spiral shell
The presence of bar 31 can increase the rigidity of local ground, and the pretension applied to screw rod 31 can increase the foundation structure and ground
Contact pressure, to enhance ground globality and improve foundation bearing capacity.
The construction method of the foundation structure is：
(1) smooth location makes well foundation 1；
(2) open caisson hole, sinking well foundation 1 to designed elevation are excavated；
(3) well foundation bottom casting concrete sealing；
(4) pre-buried 31 component 3 of high-strength bolt, reinforcing bar binding, casting concrete cushion cap 2；
(5) tower of blower is installed above 31 component 3 of high-strength bolt.
The applicable elements of the foundation structure are that ground middle and upper part load is larger, and the permitted bearing capacity of surface layer foundation soil is not
Foot, Extended chemotherapy excavates heavy workload, and support difficulty, but the supporting course having had under certain depth, using well foundation
It is economically relatively reasonable compared with other deep foundations；In mountain stream, though soil property is good, wash away big or korneforos have it is larger
Rock layer surface is flatter when cobble inconvenience pile foundation construction and coating is thin, but river water is deeper, and the open caisson blower base can be used
Plinth structure.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of open caisson fan foundation structure that can be used for soft clay area, it is characterised in that：It is held including well foundation, mixed mud
Platform, anchorage and several screw arbor assemblies, the well foundation sink down at pre-designed absolute altitude and fix, and concrete sealing bottom is arranged in bottom,
The mixed mud cushion cap seals the well foundation, and all screw arbor assemblies are embedded in advance in the mixed mud cushion cap, each described
Screw arbor assembly includes screw rod and nut, and the anchorage is fixed in the mixed mud cushion cap, and the lower end of all screw rods passes through institute
It states anchorage to fix, the tower that mixed mud cushion cap upper surface connects blower by the nut is stretched out in upper end.
2. a kind of open caisson fan foundation structure that can be used for soft clay area as described in claim 1, it is characterised in that：It is described heavy
Well basis is upper lower open mouth hollow well tubular structure, including the borehole wall, and the borehole wall lower end is equipped with blade foot, and the well foundation sinks
Ground is fixed on by the blade foot to pre-designed absolute altitude, partition wall is equipped with inside the well foundation, the partition wall lower end is solid
Due to the concrete sealing bottom, upper end supports the mixed mud cushion cap.
3. a kind of open caisson fan foundation structure that can be used for soft clay area as described in claim 1, it is characterised in that：It is described heavy
Well basis is connected and fixed with the mixed mud cushion cap with reinforcing bar.
4. a kind of open caisson fan foundation structure that can be used for soft clay area as described in claim 1, it is characterised in that：The spiral shell
Bar surface is wrapped in PE pipe.
5. a kind of open caisson fan foundation structure that can be used for soft clay area as described in claim 1, it is characterised in that：The spiral shell
Rod outer surface is equipped with F-C paint erosion resistant coating.
6. a kind of open caisson fan foundation structure that can be used for soft clay area as described in claim 1, it is characterised in that：It is described mixed
Soil cushion cap is circle, and all screw arbor assemblies are arranged in two concentric circles using mixed mud cushion cap center as the center of circle, and two with one heart
Screw arbor assembly on circle is uniformly distributed, and the upper end of all screw rods limits fixation after sequentially passing through ring and ring flange.
7. a kind of open caisson fan foundation structure that can be used for soft clay area as described in claim 1, it is characterised in that：The anchor
Tool is base ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820283196.3U CN208167774U (en) | 2018-02-28 | 2018-02-28 | A kind of open caisson fan foundation structure can be used for soft clay area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820283196.3U CN208167774U (en) | 2018-02-28 | 2018-02-28 | A kind of open caisson fan foundation structure can be used for soft clay area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208167774U true CN208167774U (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820283196.3U Active CN208167774U (en) | 2018-02-28 | 2018-02-28 | A kind of open caisson fan foundation structure can be used for soft clay area |
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| CN (1) | CN208167774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265742A (en) * | 2018-02-28 | 2018-07-10 | 中国地质大学（武汉） | A kind of open caisson fan foundation structure available for soft clay area |
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2018
- 2018-02-28 CN CN201820283196.3U patent/CN208167774U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265742A (en) * | 2018-02-28 | 2018-07-10 | 中国地质大学（武汉） | A kind of open caisson fan foundation structure available for soft clay area |
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