CN204491649U - A kind of blower fan pile pier basis - Google Patents

A kind of blower fan pile pier basis Download PDF

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Publication number
CN204491649U
CN204491649U CN201520030188.4U CN201520030188U CN204491649U CN 204491649 U CN204491649 U CN 204491649U CN 201520030188 U CN201520030188 U CN 201520030188U CN 204491649 U CN204491649 U CN 204491649U
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China
Prior art keywords
pile
basis
pier
pier basis
blower fan
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Expired - Fee Related
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CN201520030188.4U
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Chinese (zh)
Inventor
范益群
王海峰
许海勇
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Priority to CN201520030188.4U priority Critical patent/CN204491649U/en
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Publication of CN204491649U publication Critical patent/CN204491649U/en
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Abstract

The utility model discloses a kind of blower fan pile pier basis, comprise centre pier basis, it is characterized in that centre pier foundation bottom arranges anchor pile, some taper piles are had around described centre pier basis instrument, top, centre pier basis arranges concrete bearing platform, taper pile top rebars is connected with concrete bearing platform reinforcing bar, and concrete bearing platform and described taper pile are built integral.The utility model has the advantages that: taper pile compensate for the problem of pier foundation anti-bending strength deficiency, overall security, stability and settlement Control performance have enough guarantees.The dimension of platform on pile pier basis, the quantity of stake is all less than conventional piles basis, and the construction period is short, and cost is low.

Description

A kind of blower fan pile pier basis
Technical field
The utility model relates to the foundation field in geotechnical engineering, is specifically related to a kind of wind power generating set ground stabilization and basic constructional design, particularly a kind of blower fan pile pier basis being applicable to weak soil and Collapsible Loess District.
Background technology
Deposits in Eastern Coastal China area and the Northwest's wind energy resources enrich, and wind energy is clean as one, regenerative resource, will progressively become the important component part of new forms of energy in China's strategy of sustainable development.At present, wind-power electricity generation has possessed the outstanding advantage of technology maturation, commercial value and environmental benefit, and growth momentum is swift and violent.Wind power generating set ground is generally high about 80 meters with upper part, produces huge moment of flexure in running, and require high to the bearing capacity of foundation and stability against overturning, once topple over accident, economic loss is huge.
Cross the Collapsible Loess District in the weak soil of East Coastal and Shaanxi, Ningxia at me, ground soil property is poor, cannot provide enough bearing capacities.As adopted the pier foundation used at present, then anti-bending strength is obviously not enough, do not meet the requirement of China's " Wind turbines Base foundation design specifies " and " Code for building construction in collapsible loess zone ", and traditional pile foundation support table foundation cost is too expensive, the novel wind power unit foundation therefore needing a kind of economy and safety all good.
Utility model content
The purpose of this utility model is to provide a kind of blower fan pile pier basis being applicable to weak soil and Collapsible Loess District, can overcome the problem of weak soil side bearing capacity deficiency and collapsibility of loess.
The technical solution of the utility model is as follows: a kind of blower fan pile pier basis, comprise centre pier basis, it is characterized in that centre pier foundation bottom arranges anchor pile, some taper piles are had around described centre pier basis instrument, top, centre pier basis arranges concrete bearing platform, taper pile top rebars is connected with concrete bearing platform reinforcing bar, and concrete bearing platform and described taper pile are built integral.The built-in prestressed anchor in described centre pier basis.Described centre pier basis comprises outward corrugated tube and is arranged on the inner corrugated pipe in outward corrugated tube, the outer concreting of outward corrugated tube forms concrete guard wall, concreting between inner corrugated pipe and outward corrugated tube and build integral with concrete bearing platform, arranges backfill or rubble in inner corrugated pipe.High-strength prestressed anchor pole is provided with between inner corrugated pipe and outward corrugated tube.Taper pile is in vertical direction with 10 ~ 12 ° of angles.Described centre pier basis lower end diameter is little, and upper end diameter is large.Taper pile around centre pier basis is steel pipe pile, PHC pile tube or bored pile.The upper surface of described concrete bearing platform is by Flange joint blower fan tower barrel.
The utility model squeezes into anchor pile in centre pier foundation bottom, can improve the bearing capacity the settlement by soaking eliminating loess of cheating subsoil, play reinforcing and Compaction variables effect.Centre pier basis forms the larger pier foundation of diameter, and the lateral pressure of the periphery soil body acts on pier foundation, the horizontal force that opposing top blower fan produces and moment of flexure.Pier foundation surrounding some taper piles are built into by cushion cap and its and are integrated.The angle of taper pile should with vertical direction at an angle, taper pile squeezes into non-settlement by soaking soil layer, and its horizontal force provided and vertical force both can make up the deficiency of pier foundation anti-bending strength, effectively can control again the sedimentation of mass-type foundation.Concrete guard wall outside outward corrugated tube provides the effect of a supporting can not only to the construction in foundation ditch, also expands the diameter of pier foundation, plays the lateral force of soil more fully.The utility model has the advantages that: taper pile compensate for the problem of pier foundation anti-bending strength deficiency, overall security, stability and settlement Control performance have enough guarantees.The dimension of platform on pile pier basis, the quantity of stake is all less than conventional piles basis, and the construction period is short, and cost is low.
Accompanying drawing explanation
Fig. 1 is sectional drawing of the present utility model.
Fig. 2 is pier foundation schematic internal view of the present utility model.
Fig. 3 is the close-up schematic view of Fig. 2.
Fig. 4 is top plan view of the present utility model.
Fig. 5 is the rough schematic view that the utility model and top blower fan assemble.
Detailed description of the invention
Below in conjunction with accompanying drawing summary construction sequence, be specifically described the utility model: in Fig. 1, each ingredient is respectively: high-strength prestressed anchor pole 1; C40 concrete bearing platform 2; C15 concrete guard wall 3; Taper pile 4; Inner corrugated pipe 5; Cable 6; Backfill 7; Anchor pile 8; Outward corrugated tube 9.
A kind of blower fan pile pier basis, comprise centre pier basis, it is characterized in that centre pier foundation bottom arranges anchor pile 8, some taper piles 4 are had around described centre pier basis instrument, top, centre pier basis arranges C40 concrete bearing platform 2, taper pile 4 top rebars is connected with C40 concrete bearing platform 2 reinforcing bar, and C40 concrete bearing platform 2 and described taper pile 4 are built integral.Described centre pier basis comprises outward corrugated tube and is arranged on the inner corrugated pipe 5 in outward corrugated tube 9, the outer concreting of outward corrugated tube 9 forms C15 concrete guard wall 3, concreting between inner corrugated pipe 5 and outward corrugated tube 9 and build integral with concrete bearing platform, arranges backfill 7 or rubble in inner corrugated pipe 5.High-strength prestressed anchor pole 1 is provided with between inner corrugated pipe 5 and outward corrugated tube 9.Taper pile 4 is in vertical direction with 10 ~ 12 ° of angles.Described centre pier basis lower end diameter is little, and upper end diameter is large.Taper pile around centre pier basis is steel pipe pile, PHC pile tube or bored pile.The upper surface of described concrete bearing platform is by Flange joint blower fan tower barrel.
Fig. 2 is inside high strength anchor bar and the arrangement of reinforcement layout of pier foundation, be specially: tower drum flange and upper, annular steel plate 11, bottom tower drum flange, steel plate is identical with upper cartridge doughnut-shaped steel plate internal-and external diameter, fits completely, and be connected with bolt by reinforcing bar, so place is reduced to one; Vertical fixing joint bar 12; Big nut and pad 13; The horizontal cracking resistance muscle 14 of rebuilding; High-strength prestressed anchor pole 15; Locking nut 16; Binding iron wire 17.The upper end of described high-strength prestressed anchor pole 15 is connected with tower drum flange 11 by big nut and pad 13, lower end is connected with lower annular steel plate 18 by locking nut 16, the outer sheathed PE sleeve pipe of described high-strength prestressed anchor pole, is also provided with the horizontal cracking resistance muscle 14 of rebuilding and vertical fixing joint bar 12 below tower drum flange 11.Described horizontal cracking resistance muscle 14 is the U-shaped structure of bending, every section of horizontal cracking resistance muscle 14 vertically fixed joint bar 12 and bend across 2 roads, as shown in Figure 3, the two ends of vertical fixing joint bar 12 are straight down through the horizontal cracking resistance muscle 14 of lower floor, between the two without other stirrup annexation, have a style of one's own after building.
In Fig. 4,21 is the pier foundation part shown in Fig. 2; 22 is taper pile; 23 is backfill; 24 is concrete bearing platform.
According to following steps during construction:
(1) taper pile is squeezed into or is poured into: taper pile is in vertical direction with 10 ~ 12 ° of angles, and with the center of circular cushion cap for the center of circle is increased radioactivity, stake heart distance is greater than 3 times of a footpath.Stake top reinforcing bar exposes, conveniently with reinforcing bar binding in cushion cap.
(2) excavation of foundation pit: Circular Pit, lower end diameter is little, and upper end diameter is large, and generally without the need to supporting, but subsequent construction need be carried out as early as possible, avoids hole wall to be in for a long time without a gear state.
(3) end anchoring pile construction is cheated: the design of anchor pile need reach the object eliminating hole subsoil settlement by soaking.
(4) urceolus (i.e. outward corrugated tube) is installed.
(5) C15 concrete is built: C15 concrete fills up the gap between urceolus and Foundation Pit wall.
(6) high-strength prestressed rockbolt installation: Internal and external cycle is arranged, top and bottom is connected with doughnut-shaped steel plate respectively by bolt.
(7) inner core (i.e. inner corrugated pipe) is installed.
(8) backfill in inner core: soil body during backfill excavation of foundation pit or rubble.
(9) top cushion cap reinforcing bar binding.
(10) taper pile joint process: taper pile top rebars connects with cushion cap reinforcing bar.
(11) cable penetration pipe is buried underground.
(12) C40 concrete is built: build the space between top cushion cap and interior outward corrugated tube.
(13) anchor rod prestress stretch-draw.

Claims (5)

1. a blower fan pile pier basis, comprise centre pier basis, it is characterized in that centre pier foundation bottom arranges anchor pile, some taper piles are had around described centre pier basis instrument, top, centre pier basis arranges concrete bearing platform, taper pile top rebars is connected with concrete bearing platform reinforcing bar, and concrete bearing platform and described taper pile are built integral.
2. a kind of blower fan pile pier basis as claimed in claim 1, is characterized in that the built-in prestressed anchor in centre pier basis.
3. a kind of blower fan pile pier basis as claimed in claim 1, it is characterized in that described centre pier basis comprises outward corrugated tube and is arranged on the inner corrugated pipe in outward corrugated tube, the outer concreting of outward corrugated tube forms concrete guard wall, concreting between inner corrugated pipe and outward corrugated tube and build integral with concrete bearing platform, arranges backfill or rubble in inner corrugated pipe.
4. a kind of blower fan pile pier basis as claimed in claim 3, is characterized in that being provided with prestressed anchor between inner corrugated pipe and outward corrugated tube.
5. a kind of blower fan pile pier basis as claimed in claim 1, is characterized in that taper pile is in vertical direction with 10 ~ 12 ° of angles.
CN201520030188.4U 2015-01-16 2015-01-16 A kind of blower fan pile pier basis Expired - Fee Related CN204491649U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520030188.4U CN204491649U (en) 2015-01-16 2015-01-16 A kind of blower fan pile pier basis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104594372A (en) * 2015-01-16 2015-05-06 上海市政工程设计研究总院(集团)有限公司 Fan pile pier foundation and construction method thereof
CN109162289A (en) * 2018-10-30 2019-01-08 江西博慧工程技术服务有限公司 The prefabricated carrying pier structure of one kind and its construction method
CN114396192A (en) * 2021-12-13 2022-04-26 中国能源建设集团安徽省电力设计院有限公司 Plug-in type concrete-filled steel tube column base for large power transmission tower and construction method thereof
CN116451329A (en) * 2023-06-14 2023-07-18 中铁二十三局集团第一工程有限公司 Parameter design method for composite support of steel pipe pile and cast-in-situ pile

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104594372A (en) * 2015-01-16 2015-05-06 上海市政工程设计研究总院(集团)有限公司 Fan pile pier foundation and construction method thereof
CN104594372B (en) * 2015-01-16 2016-05-25 上海市政工程设计研究总院(集团)有限公司 A kind of blower fan pile pier basis and construction method thereof
CN109162289A (en) * 2018-10-30 2019-01-08 江西博慧工程技术服务有限公司 The prefabricated carrying pier structure of one kind and its construction method
CN114396192A (en) * 2021-12-13 2022-04-26 中国能源建设集团安徽省电力设计院有限公司 Plug-in type concrete-filled steel tube column base for large power transmission tower and construction method thereof
CN114396192B (en) * 2021-12-13 2024-03-15 中国能源建设集团安徽省电力设计院有限公司 Inserted steel tube concrete column base for large power transmission tower and construction method thereof
CN116451329A (en) * 2023-06-14 2023-07-18 中铁二十三局集团第一工程有限公司 Parameter design method for composite support of steel pipe pile and cast-in-situ pile
CN116451329B (en) * 2023-06-14 2023-08-22 中铁二十三局集团第一工程有限公司 Parameter design method for composite support of steel pipe pile and cast-in-situ pile

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20150722