CN103835306A - Draught fan foundation applicable to liquefaction soft foundation and construction method thereof - Google Patents
Draught fan foundation applicable to liquefaction soft foundation and construction method thereof Download PDFInfo
- Publication number
- CN103835306A CN103835306A CN201410092338.4A CN201410092338A CN103835306A CN 103835306 A CN103835306 A CN 103835306A CN 201410092338 A CN201410092338 A CN 201410092338A CN 103835306 A CN103835306 A CN 103835306A
- Authority
- CN
- China
- Prior art keywords
- pile
- foundation
- applicable
- bearing platform
- cement mixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a draught fan foundation applicable to a liquefaction soft foundation and a construction method thereof. In order to solve the problem that an existing liquefaction processing method for a soft foundation is high in cost, the draught fan foundation applicable to the liquefaction soft foundation comprises a plurality of vertically-arranged cement mixed piles, a plurality of vertically-arranged prefabricated pipe piles arranged between the cement mixed piles, a concrete bearing platform arranged at the top ends of the cement mixed piles and the top ends of the prefabricated pipe piles, and a foundation ring fixed to the upper portion of the concrete bearing platform and used for fixing a draught fan. The draught fan foundation applicable to the liquefaction soft foundation is convenient to construct, efficient, low in manufacturing cost and capable of meeting safety requirements.
Description
Technical field
The present invention relates to fan foundation structure field, be specially a kind of blower foundation and construction method thereof of the soft base that is applicable to liquefy, be mainly applicable to the soft clay area of liquefying.
Background technology
China's Coastal Areas wind energy resources is abundant, and DEVELOPMENT PROSPECT is wide.But this area's complex geologic conditions, mostly is soft foundation, and ubiquity Liquefaction.The processing of liquefying of adopt this area's blower foundation sand compaction pile or broken stone pile, even do not take with idea of leaving things to chance the treatment measures that liquefy more.Because this area's sand material lacks relatively, sand compaction pile or the broken stone pile processing cost that liquefies is higher; And the risk of the processing of not liquefying is larger.
Summary of the invention
In order to overcome the higher deficiency of the existing liquefaction processing method of soft foundation cost, the present invention aims to provide a kind of blower foundation of the soft base that is applicable to liquefy, and this blower foundation easy construction is efficient, and cost is lower, and can meet safety requirements.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of blower foundation of the soft base that is applicable to liquefy, its design feature is, comprise the many vertical cement mixing piles of arranging, be arranged on the many vertical prefabricated tubular piles of arranging between cement mixing pile, be arranged on the concrete bearing platform on cement mixing pile and prefabricated tubular pile top, be fixed on the discharge ring of concrete bearing platform top for fixing blower fan.
Be below the technical scheme of further improvement of the present invention:
As a kind of concrete form of structure, described discharge ring is embedded in concrete bearing platform top.
Connect an entirety of formation in order to realize concrete bearing platform, discharge ring, top blower fan and bottom prefabricated tubular pile, described prefabricated tubular pile and concrete bearing platform are fixedly linked.
Preferably, described concrete bearing platform is reinforced concrete pile cap.
Preferably, described prefabricated tubular pile is PHC pile tube, i.e. prestressed high strength concrete pile tube.
Further, another object of the present invention is to provide a kind of construction method of blower foundation of the soft base that is applicable to as mentioned above to liquefy, and it comprises the steps:
1), according to the soil capability parameter primary Calculation in blower foundation to be installed region go out need the size of concrete bearing platform and quantity and the length of PHC pile tube, configure corresponding cement mixing pile;
2), construction cement mixing pile, after construction, carry out between cement mixing pile soil capability and detect;
3), readjust quantity and the length of PHC pile tube the final size of definite concrete bearing platform according to the soil capability parameter after construction.
Wherein, the quantity of the size of primary Calculation concrete bearing platform and PHC pile tube and length, and readjust quantity and the length of PHC pile tube, final size of determining concrete bearing platform etc. all can be obtained according to the correlation formula in " wind-powered electricity generation unit Base foundation design regulation " and " technical code for building pile foundation ".
By said structure, the present invention utilizes the liquefaction of cement mixing pile elimination upper soil horizon to form non-liquefying soil covering layer inhibition bottom liquefying soil and sprays water and gush sand and keep pile foundation monolithic stability in a large number; By the vertical pressure load of PHC pile tube and cement mixing pile shared top blower fan; PHC pile tube is born uplift force and the horizontal force of top blower fan; Reinforced concrete pile cap and the discharge ring being embedded in wherein connect an entirety of formation with top blower fan and bottom PHC pile tube.
Compared with prior art, fan foundation structure provided by the invention is applicable to the soft clay area of liquefying, and has the following advantages: (1) structural shape is simple, easy construction; (2) cost is low.(3) liquefaction impact not only can be effectively eliminated in the enforcement of cement mixing pile, strengthens safety, and has improved ground, provides better construction environment to follow-up construction.
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Accompanying drawing explanation
Fig. 1 is the structural plan schematic diagram of the embodiment of the present invention;
Fig. 2 is the vertical section schematic diagram of Fig. 1.
In the drawings:
1-cement mixing pile; 2-PHC pile tube: 3-reinforced concrete pile cap; 4-discharge ring.
The specific embodiment
A kind of blower foundation of the soft base that is applicable to liquefy, as shown in Figure 1, comprise the many vertical cement mixing piles 1 of arranging, be arranged on the many vertical PHC pile tubes 2 of arranging between cement mixing pile 1, be fixedly connected on the reinforced concrete pile cap 3 on cement mixing pile 1 and PHC pile tube 2 tops, be fixed on the discharge ring 4 of reinforced concrete pile cap 3 tops for fixing blower fan.Described discharge ring 4 is embedded in concrete bearing platform 3 tops.
Concrete construction method is as follows:
(1) first primary Calculation goes out to need the size of reinforced concrete pile cap 3 and quantity and the length of PHC pile tube 2, configure corresponding cement mixing pile 1;
(2) constructed after cement mixing pile 1 and carried out the detection of inter-pile soil soil capability;
(3) readjust quantity and the length of PHC pile tube 2 according to new soil capability parameter, and the size of definite reinforced concrete pile cap 3, engineering quantity reduced.
Example: the coastal mudflat wind electric field in Jiangsu, 33 blower fans that single-machine capacity is 1.5MW are installed, wind-powered electricity generation place basic earthquake intensity is VII degree, and silt fine sand layer is serious liquefaction, and each soil layer mechanics parameter index sees the following form 1.
Table 1 foundation soil structural mechanics parameter value
As calculated, blower foundation cushion cap bottom radius is 8.8m, and cushion cap volume is 446m
3; PHC(D600) 24 of pile tubes, the long 30m of stake; In PHC pile tube, outside is evenly arranged 72 (the about 1.5m of spacing) cement mixing piles (D500, L=10m), after cement mixing pile driving construction completes, detects, and each soil layer mechanics parameter index sees the following form 2.
Table 2 foundation soil structural mechanics parameter value
As calculated, blower foundation dimension of platform is constant; PHC(D600) pile tube quantity is constant, and stake is long to be shortened as 25m by 30m.
40 yuan/m of cement mixing pile (D500) unit price, the cement mixing pile cost of separate unit blower foundation is 2.88 ten thousand yuan; PHC(D600) 400 yuan/m of pile tube unit price, the PHC pile tube cost that separate unit blower foundation is saved is 4.8 ten thousand yuan.Comprehensively relatively after, adopt cement mixing pile can make separate unit blower foundation save approximately 20,000 yuan of costs, the wind energy turbine set of an installation 50MW can be saved approximately 660,000 yuan of costs.
The content that above-described embodiment is illustrated should be understood to these embodiment only for being illustrated more clearly in the present invention, limit the scope of the invention and be not used in, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Claims (6)
1. the blower foundation of the soft base that is applicable to liquefy, it is characterized in that, comprise the many vertical cement mixing piles (1) of arranging, be arranged on the many vertical prefabricated tubular piles (2) of arranging between cement mixing pile (1), be arranged on the concrete bearing platform (3) on cement mixing pile (1) and prefabricated tubular pile (2) top, be fixed on the discharge ring (4) of concrete bearing platform (3) top for fixing blower fan.
2. the blower foundation of the soft base that is applicable to liquefy according to claim 1, is characterized in that, described discharge ring (4) is embedded in concrete bearing platform (3) top.
3. the blower foundation of the soft base that is applicable to liquefy according to claim 1 and 2, is characterized in that, described prefabricated tubular pile (2) is fixedly linked with concrete bearing platform (3).
4. the blower foundation of the soft base that is applicable to liquefy according to claim 1 and 2, is characterized in that, described concrete bearing platform (3) is reinforced concrete pile cap.
5. the blower foundation of the soft base that is applicable to liquefy according to claim 1 and 2, is characterized in that, described prefabricated tubular pile (2) is PHC pile tube.
6. be applicable to liquefy as described in one of the claim 1-5 construction method of blower foundation of soft base, is characterized in that, comprises the steps:
1), according to the soil capability parameter primary Calculation in blower foundation to be installed region go out need the size of concrete bearing platform (3) and quantity and the length of PHC pile tube (2), configure corresponding cement mixing pile (1);
2), construction cement mixing pile (1), after construction, carry out between cement mixing pile (1) soil capability and detect;
3), readjust quantity and the length of PHC pile tube (2) the final size of definite concrete bearing platform (3) according to the soil capability parameter after construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092338.4A CN103835306A (en) | 2014-03-13 | 2014-03-13 | Draught fan foundation applicable to liquefaction soft foundation and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092338.4A CN103835306A (en) | 2014-03-13 | 2014-03-13 | Draught fan foundation applicable to liquefaction soft foundation and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103835306A true CN103835306A (en) | 2014-06-04 |
Family
ID=50799171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410092338.4A Pending CN103835306A (en) | 2014-03-13 | 2014-03-13 | Draught fan foundation applicable to liquefaction soft foundation and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103835306A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612174A (en) * | 2014-12-26 | 2015-05-13 | 浙江大学城市学院 | Ultrasoft soil brick molding bed auxiliary bearing platform structure and construction method thereof |
| CN106013204A (en) * | 2016-05-30 | 2016-10-12 | 上海电力设计院有限公司 | Method for applying gravity-type foundation to offshore wind power engineering in sea area with soft-soil seabed |
| CN107237342A (en) * | 2017-08-03 | 2017-10-10 | 天津港航工程有限公司 | New low pile cap foundation structure and its construction method |
| CN108222050A (en) * | 2018-03-20 | 2018-06-29 | 江苏融宝达新能源科技有限公司 | Prefabricated components concrete tower fan foundation structure and preparation method thereof |
| CN109881659A (en) * | 2019-03-27 | 2019-06-14 | 东南大学 | A kind of offshore wind farm steel pipe pile foundation foundation reinforcement method with protection against erosion ability |
| CN114134924A (en) * | 2021-11-12 | 2022-03-04 | 中国华能集团清洁能源技术研究院有限公司 | Prefabricated plate pile combined cylinder fan foundation and construction method and application thereof |
| CN114134882A (en) * | 2021-11-12 | 2022-03-04 | 中国华能集团清洁能源技术研究院有限公司 | Wind power prefabricated sheet pile and application structure and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002285564A (en) * | 2001-03-26 | 2002-10-03 | Taisei Corp | Bearing construction for the foundation of structure and construction method therefor |
| CN101148891A (en) * | 2007-10-09 | 2008-03-26 | 水利部交通部电力工业部南京水利科学研究院 | Rigid and flexible long-short pile composite foundation used for highway soft soil foundation treatment |
| CN103046574A (en) * | 2013-01-28 | 2013-04-17 | 中国水电顾问集团西北勘测设计研究院 | Four-leaf-clover-type concrete bearing platform and prestressed pipe foundation structure of soft foundation fan |
| CN203247597U (en) * | 2013-03-29 | 2013-10-23 | 天津二十冶建设有限公司 | Construction structure of deep soft soil foundation bridge abutment |
| CN203846520U (en) * | 2014-03-13 | 2014-09-24 | 中国电建集团中南勘测设计研究院有限公司 | Fan foundation applicable to soft foundation liquefaction |
-
2014
- 2014-03-13 CN CN201410092338.4A patent/CN103835306A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002285564A (en) * | 2001-03-26 | 2002-10-03 | Taisei Corp | Bearing construction for the foundation of structure and construction method therefor |
| CN101148891A (en) * | 2007-10-09 | 2008-03-26 | 水利部交通部电力工业部南京水利科学研究院 | Rigid and flexible long-short pile composite foundation used for highway soft soil foundation treatment |
| CN103046574A (en) * | 2013-01-28 | 2013-04-17 | 中国水电顾问集团西北勘测设计研究院 | Four-leaf-clover-type concrete bearing platform and prestressed pipe foundation structure of soft foundation fan |
| CN203247597U (en) * | 2013-03-29 | 2013-10-23 | 天津二十冶建设有限公司 | Construction structure of deep soft soil foundation bridge abutment |
| CN203846520U (en) * | 2014-03-13 | 2014-09-24 | 中国电建集团中南勘测设计研究院有限公司 | Fan foundation applicable to soft foundation liquefaction |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612174A (en) * | 2014-12-26 | 2015-05-13 | 浙江大学城市学院 | Ultrasoft soil brick molding bed auxiliary bearing platform structure and construction method thereof |
| CN106013204A (en) * | 2016-05-30 | 2016-10-12 | 上海电力设计院有限公司 | Method for applying gravity-type foundation to offshore wind power engineering in sea area with soft-soil seabed |
| CN107237342A (en) * | 2017-08-03 | 2017-10-10 | 天津港航工程有限公司 | New low pile cap foundation structure and its construction method |
| CN108222050A (en) * | 2018-03-20 | 2018-06-29 | 江苏融宝达新能源科技有限公司 | Prefabricated components concrete tower fan foundation structure and preparation method thereof |
| CN109881659A (en) * | 2019-03-27 | 2019-06-14 | 东南大学 | A kind of offshore wind farm steel pipe pile foundation foundation reinforcement method with protection against erosion ability |
| CN114134924A (en) * | 2021-11-12 | 2022-03-04 | 中国华能集团清洁能源技术研究院有限公司 | Prefabricated plate pile combined cylinder fan foundation and construction method and application thereof |
| CN114134882A (en) * | 2021-11-12 | 2022-03-04 | 中国华能集团清洁能源技术研究院有限公司 | Wind power prefabricated sheet pile and application structure and construction method thereof |
| CN114134882B (en) * | 2021-11-12 | 2023-11-07 | 中国华能集团清洁能源技术研究院有限公司 | Wind power prefabricated sheet pile, application structure thereof and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103835306A (en) | Draught fan foundation applicable to liquefaction soft foundation and construction method thereof | |
| CN201785765U (en) | Secondary leveling structure for multi-pile base of marine wind power generator set | |
| CN103114604B (en) | Prestressed concrete tubular type wind generating set foundation | |
| CN103184741A (en) | Foundation of composite gravity-type offshore wind power generating unit | |
| CN106245671B (en) | A kind of combined type offshore wind power foundation and its construction method | |
| CN102390495A (en) | Offshore combined floating wind power generation platform | |
| CN109853609A (en) | A kind of offshore wind farm combination foundation | |
| CN105862907A (en) | Annular combination type super-large diameter offshore wind power single pile foundation and construction technology thereof | |
| CN103266621A (en) | Steel strand prestress base structure of wind driven generator and construction method thereof | |
| CN103046575A (en) | Land four-leaf-clover-type fan expanded foundation structure | |
| CN109469089A (en) | A kind of interpolation type offshore wind farm jacket basis carrying steady pipe casing and construction method | |
| CN208870071U (en) | A kind of assembly gravity type offshore wind basis | |
| CN201953582U (en) | Offshore wind turbine foundation with levelling structure | |
| CN202416341U (en) | Steel truss automatically-standing seaborne anemometer tower | |
| CN203846520U (en) | Fan foundation applicable to soft foundation liquefaction | |
| CN209603168U (en) | A kind of offshore wind farm combination foundation | |
| CN105569067A (en) | Foundation structure applicable to pre-stressed rock anchor rod fan base and construction method of foundation structure | |
| CN203403699U (en) | High-rise building steel structure wind and light electricity generating tower | |
| CN204491567U (en) | Pre-manufactured steel pile tube wind power generation platform | |
| CN205776312U (en) | Circular combined super-large diameter offshore wind farm single-pile foundation | |
| CN109024658A (en) | A kind of assembly gravity type offshore wind basis | |
| CN203530959U (en) | High-strength underground diaphragm wall | |
| CN203096750U (en) | Mud flat quicksand soft foundation fan basic pile casing type concrete filling pile device | |
| CN105155573A (en) | Offshore wind turbine barrel-in-barrel foundation | |
| CN205822160U (en) | Offshore anemometer tower and lifting type workbench thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Applicant after: Company limited of Central-South survey and design research institute of electricity Jian group of China Address before: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Applicant before: Co., Ltd of Zhongnan Prospecting Design Inst. China Hydrauelectric Consultant Group |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HYDROCHINA ZHONGNAN ENGINEERING CORPORATION TO: CHINA POWER GROUP ZHONGNAN INVESTIGATION DESIGN + RESEARCH INSTITUTE CO., LTD. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |