CN204139197U - Bottom enlarging prestress anchoring pile wind energy conversion system basis - Google Patents

Bottom enlarging prestress anchoring pile wind energy conversion system basis Download PDF

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Publication number
CN204139197U
CN204139197U CN201420488601.7U CN201420488601U CN204139197U CN 204139197 U CN204139197 U CN 204139197U CN 201420488601 U CN201420488601 U CN 201420488601U CN 204139197 U CN204139197 U CN 204139197U
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China
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anchoring pile
foundation platform
prestress
energy conversion
wind energy
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CN201420488601.7U
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Inventor
戚俊峰
袁铁柱
袁金西
叶祖林
张晓晶
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Longyuan Beijing Wind Power Engineering Design and Consultation Co Ltd
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Xinjiang Wind Power Engineering Consultant Co Ltd
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Abstract

The utility model relates to a kind of bottom enlarging prestress anchoring pile wind energy conversion system basis and is made up of bottom enlarging prestress steel strand anchoring pile, foundation platform and discharge ring.Described anchoring pile is arranged on the foundation platform of both sides inside and outside discharge ring ringwise.Foundation platform is connected with wind energy conversion system upper column barrel structure by pre-buried discharge ring in cushion cap, and foundation platform is connected with basement rock by bottom enlarging prestress steel strand anchoring pile, thus forms an entirety.The utility model adopts the auger boring can expanding the end; foundation platform and basement rock is connected by bottom enlarging prestress steel strand anchoring pile; formation level is little; concrete amount is few; rolled steel dosage is few, and waste is few, and native stone evolution amount is few; decrease the destruction to the original landforms in mountain area, be conducive to vegetation and ecological environmental protection.

Description

Bottom enlarging prestress anchoring pile wind energy conversion system basis
Technical field
The utility model relates to a kind of wind driven generator base, particularly relates to a kind of basis and basement rock and is linked to be overall bottom enlarging prestress anchoring pile wind energy conversion system basis by bottom enlarging prestress anchoring pile and basement rock.
Background technology
Along with China's wind-powered electricity generation installation scale increases fast, wind-driven generator kludge quantity also synchronously increases, the wind power generating set of plains region is close to saturated now, and the supply of wind-power electricity generation also fails to meet the demand of urbanization process far away, this just makes new clothes wind power generating set can only be precipitous to landform such as mountain areas, ground firm area development.
At present, the wind energy conversion system basis that China's wind energy turbine set uses adopts the spread footing of steel concrete gravity independence more, and form is more single.And this kind of wind energy conversion system basis floor space is large, excavated volume is large, not too be applicable to being used in mountain area, particularly for the ubiquitous rock foundation in mountain area, excavation of foundation pit difficulty is larger, general employing is exempted from mode that is quick-fried or shallow-layer explosion and is excavated, thus considerably increases construction speed and engineering cost.
The utility model is in Foundation Design, and especially wind driven generator base industry yet there are no application and report.
Summary of the invention
The purpose of this utility model is to propose that a kind of structure is simple, floor space is little, speed of application is fast, engineering cost is low, be applicable to being applied in the bottom enlarging prestress anchoring pile wind energy conversion system basis that weathering in mountain area or slightly weathered rock ground are built.
The purpose of this utility model is achieved in that bottom enlarging prestress anchoring pile wind energy conversion system basis is made up of bottom enlarging prestress steel strand anchoring pile, foundation platform and discharge ring.Described anchoring pile is arranged on the foundation platform of both sides inside and outside discharge ring ringwise.Foundation platform is connected with wind energy conversion system upper column barrel structure by pre-buried discharge ring in cushion cap, and foundation platform is connected with basement rock by bottom enlarging prestress steel strand anchoring pile, thus forms an entirety.
The utility model adopts the auger boring can expanding the end; foundation platform and basement rock is connected by bottom enlarging prestress steel strand anchoring pile; formation level is little; concrete amount is few; rolled steel dosage is few, and waste is few, and native stone evolution amount is few; decrease the destruction to the original landforms in mountain area, be conducive to vegetation and ecological environmental protection.At Resource by Utilizing Advanced Technologies, save construction costs, conservation of nature environment and increase successful in social benefit; it mainly contains following embodiment: (1) makes full use of advanced technology; employing can expand the auger boring at the end; expand the end at foot of hole, progressively put at prestress wire fixed end ground tackle and expand bottom part and form fixed end enlarged footing after grouting.(2) make full use of advanced material, by bottom enlarging prestress steel strand anchoring pile, foundation platform and basement rock are linked to be entirety, the load effect based on overturning moment that shared wind energy conversion system basis is transmitted.Thus reduce size and the buried depth of foundation platform itself.(3) given full play to the mechanical property of original state rock mass, there is good extraction-resistant behavior.(4) consumption of the material such as concrete and basic steel is decreased.(5) avoid and exempt from quick-fried and shallow-layer bursting work to the infringement of basic surrounding rock basal plane, tree cover.(6) take full advantage of mountain area physical relief geomorphologic conditions, decrease basic basal plane evolution, cubic metre of earth and stone evolution amount is few.(7) due to the minimizing of the material consumptions such as cement, sandstone, steel, decrease engineering transportation amount, this has obvious economic benefit and technical advantage to the pouring concrete basis, mountain area of transport difficult.
Accompanying drawing illustrates: concrete structure of the present utility model is provided by following drawings and Examples:
Fig. 1 is bottom enlarging prestress anchoring pile wind energy conversion system foundation structure schematic diagram;
Fig. 2 is the distribution schematic diagram of anchoring pile on foundation platform;
Fig. 3 is anchor pile structure schematic diagram;
Legend: 1, foundation platform, 2, foundation platform bed course, 3, discharge ring, 4, anchoring pile, 5, boring, 6, boring expands the end, 7, un-bonded prestressed steel strand, 8, embossing formula fixed end ground tackle, 9, stretching end ground tackle, 10, stretching end ground tackle protective cap.
Detailed description of the invention:
The utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Embodiment: as shown in Figure 1, 2, bottom enlarging prestress anchoring pile wind energy conversion system basis is made up of bottom enlarging prestress steel strand anchoring pile 4, foundation platform 1 and discharge ring 3.Described anchoring pile 4 is arranged on the foundation platform 1 of both sides inside and outside discharge ring 3 ringwise.Foundation platform 1 is connected with wind energy conversion system upper column barrel structure by pre-buried discharge ring 3 in cushion cap, and foundation platform 1 is connected with basement rock by bottom enlarging prestress steel strand anchoring pile 4, thus forms an entirety.
As shown in Figure 1, discharge ring 3 is on foundation platform bed course 2, and described foundation platform bed course 2 builds formation bottom super average whole foundation ditch, installs immobilizing foundation ring 3 at its center, build basis of formation cushion cap 1 inside and outside discharge ring 3.The preformed hole of the reserved distributing position by aforementioned anchoring pile 4 in foundation platform 1, uses the auger that can expand the end in the boring of foundation platform 1 preformed hole place, by designing requirement deep drilling, expands bore diameter and form the boring expansion end 6 bottom boring 5.
As shown in Figure 3, expand in preformed hole, boring 5 and boring at the end 6 and anchoring pile 4 is set, anchoring pile 4 upper end is connected with foundation platform 1 by prestress wire stretching end ground tackle 9, and lower end is stretched into boring by prestress wire embossing formula fixed end ground tackle 8 and to be expanded and grouting formation fixed end and basement rock are fixedly linked at the end 6.Un-bonded prestressed steel strand 7, embossing formula fixed end ground tackle 8 and stretching end ground tackle 9 are universal component in the industry, and no further details to be given herein for its structure.
Be below work progress:
(1) levelling of the land, removes ground surface soil, humic soil layer, smooth go out the formation level on wind energy conversion system basis.
(2) foundation ditch of excavation foundation cushion cap 1, hole end levelling smooth after-pouring foundation platform bed course 2, installs immobilizing foundation ring 3, builds foundation platform 1, reserves and hole 5 with the preformed hole of diameter in foundation platform 1 by the distributing position of anchoring pile 4.
(3) with the auger at the end can be expanded in the boring of foundation platform preformed hole place, the end 6 is expanded by designing requirement deep drilling 5, boring.
(4) every root anchoring pile boring planted agent places the un-bonded prestressed steel strand 7 of designing requirement model, quantity: the long sleeve pipe of 600 ~ 800mm is peelled off in bottom, cleans grease, makees embossing formula fixed end ground tackle 8, puts into after the boring of cleaning anchoring pile by root; Stretching end is peelled off bottom casing length to stretching end ground tackle 9, cleans grease, penetrates in the designation hole of stretching end ground tackle 9 by root.
(5) be in the milk: the grouting in boring from the grout hole stretching end ground tackle 9 to anchoring pile, boring is expanded the end 6 part and is adopted the perfusion of C40 high fluidity pea gravel concreten, and it is closely knit to reach grouting material to shake steel strand; Pressure injection cement paste pushes up to hole again.
(6) stretch-draw of un-bonded prestressed steel strand 7: after grouting material maintenance reaches 100% intensity, carries out stretch-draw by the stretching control force of designing requirement to un-bonded prestressed steel strand 7.
(7) stretching end ground tackle protective cap 10: dabbing process is carried out to foundation platform 1 end face in stretching end ground tackle protective cap 10 scope, and carries out second pouring, stretching end ground tackle 9 is embedded in protective cap 10 and protects.
The application is the wind energy conversion system basis be directly built on basement rock, basis is linked to be entirety with basement rock by bottom enlarging prestress anchoring pile 4 and basement rock, the load effect based on overturning moment that shared wind energy conversion system basis is transmitted, the effect of bottom enlarging prestress anchoring pile 4 is identical with uplift pile.
For the uplift resistance increasing stake adopts bottom enlarging prestress anchoring pile 4 to be optimal selections, the collapse state of bottom enlarging prestress anchoring pile 4 under uplift force effect be anchoring pile 4 break (pile body destructions) or produce exceed permissible value elongation strain, anchoring pile 4 by around upwards to be pulled up by adhesion stress or the connected soil body of uplift resistance and produce ground and upwards swell distortion (foundation failure)." technical code for building pile foundation " has complete reliable computational methods to pile strength, facts have proved controlled; And ground bulge fracture can be ever-changing along with the different degree of crushing of ground horizon d, compaction rate, generally all needing to be determined by Site Detection, outstanding anchoring pile 4(uplift pile) design makes its ground uplift resistance characteristic value equal with bearing capacity of pile.
Above technical characteristic constitutes most preferred embodiment of the present utility model, can increase and decrease inessential technical characteristic of the present utility model, to meet actual needs according to actual conditions.

Claims (4)

1. a bottom enlarging prestress anchoring pile wind energy conversion system basis, be made up of bottom enlarging prestress steel strand anchoring pile, foundation platform and discharge ring, it is characterized in that: described anchoring pile is arranged on the foundation platform of both sides inside and outside discharge ring ringwise, foundation platform is connected with wind energy conversion system upper column barrel structure by pre-buried discharge ring in cushion cap, and foundation platform is connected with basement rock by bottom enlarging prestress steel strand anchoring pile.
2. bottom enlarging prestress anchoring pile wind energy conversion system basis as claimed in claim 1, is characterized in that: basic ring seat is on foundation platform bed course, and described foundation platform bed course builds formation bottom super average whole foundation ditch, installs immobilizing foundation ring at its center.
3. bottom enlarging prestress anchoring pile wind energy conversion system basis as claimed in claim 1, it is characterized in that: inside and outside discharge ring, build basis of formation cushion cap, the preformed hole of the reserved distributing position by aforementioned anchoring pile in foundation platform, in the boring of foundation platform preformed hole place, foot of hole expands bore diameter and forms the boring expansion end.
4. bottom enlarging prestress anchoring pile wind energy conversion system basis as claimed in claim 3, it is characterized in that: expand in preformed hole, boring and boring at the end and anchoring pile is set, anchoring pile upper end is connected with foundation platform by prestress wire stretching end ground tackle, and lower end is stretched into boring by prestress wire embossing formula fixed end ground tackle and to be expanded and grouting formation fixed end and basement rock are fixedly linked at the end.
CN201420488601.7U 2014-08-28 2014-08-28 Bottom enlarging prestress anchoring pile wind energy conversion system basis Active CN204139197U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963355A (en) * 2015-06-24 2015-10-07 同济大学 Classification anchoring type draught fan rock anchor rod assembly
CN106400856A (en) * 2016-12-02 2017-02-15 广州建设工程质量安全检测中心有限公司 Loading device and method for static load test of pile foundation
CN110117962A (en) * 2018-02-06 2019-08-13 北京华电新能咨询有限公司 A kind of iron tower of power transmission line base expanding and base expanding anchor cable basis
CN113982028A (en) * 2021-11-10 2022-01-28 国网新疆电力有限公司建设分公司 Concrete pier anchor foundation suitable for soil-loading and rock-unloading stratum and construction method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963355A (en) * 2015-06-24 2015-10-07 同济大学 Classification anchoring type draught fan rock anchor rod assembly
CN106400856A (en) * 2016-12-02 2017-02-15 广州建设工程质量安全检测中心有限公司 Loading device and method for static load test of pile foundation
CN110117962A (en) * 2018-02-06 2019-08-13 北京华电新能咨询有限公司 A kind of iron tower of power transmission line base expanding and base expanding anchor cable basis
CN113982028A (en) * 2021-11-10 2022-01-28 国网新疆电力有限公司建设分公司 Concrete pier anchor foundation suitable for soil-loading and rock-unloading stratum and construction method thereof

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Effective date of registration: 20210325

Address after: 100032 9th floor, 6 Fuchengmen North Street, Xicheng District, Beijing

Patentee after: LONGYUAN (BEIJING) WIND POWER ENGINEERING & CONSULTING Co.,Ltd.

Address before: 830063 14th floor, urban construction building, 133 Nanhu South Road, Urumqi, Xinjiang Uygur Autonomous Region

Patentee before: XINJIANG WIND POWER ENGINEERING CONSULTING Co.,Ltd.

TR01 Transfer of patent right