CN102912811A - Multi-base gravity type base structure - Google Patents

Multi-base gravity type base structure Download PDF

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Publication number
CN102912811A
CN102912811A CN2012104773974A CN201210477397A CN102912811A CN 102912811 A CN102912811 A CN 102912811A CN 2012104773974 A CN2012104773974 A CN 2012104773974A CN 201210477397 A CN201210477397 A CN 201210477397A CN 102912811 A CN102912811 A CN 102912811A
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China
Prior art keywords
gravity
base
gravity base
bases
type foundation
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CN2012104773974A
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Chinese (zh)
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CN102912811B (en
Inventor
王立杰
戴晓兵
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Hydrochina Zhongnan Engineering Corp
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Hydrochina Zhongnan Engineering Corp
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Priority to CN201210477397.4A priority Critical patent/CN102912811B/en
Publication of CN102912811A publication Critical patent/CN102912811A/en
Application granted granted Critical
Publication of CN102912811B publication Critical patent/CN102912811B/en
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Abstract

The invention discloses a multi-base gravity type base structure which comprises a primary gravity base and more than three secondary gravity bases, wherein the secondary gravity bases are connected through a horizontal carriage to form a polygon; the primary gravity base is located in the polygon; the primary gravity base is connected with the secondary gravity bases through the horizontal carriage; and an inclined carriage is fixed on the secondary gravity bases. According to the invention, a single past gravity type base is divided into a plurality of gravity type bases, so that the contact area of the bases and the foundation is increased, the acting force from the bases to the foundation is decreased and the adaptive capacity and the stability of the gravity type bases to the foundation are improved.

Description

A kind of gravity type foundation structure of many pedestals
Technical field
The present invention relates to the gravity type foundation structure on a kind of basis of high-rise structure, particularly a kind of many pedestals.
Background technology
For natural soft soil foundation, the bearing capacity of ground often is difficult to satisfy the requirement of works, usually needs to build special structural element.
The foundation structure pattern of ocean engineering mainly comprises: single-pile foundation, gravity type foundation, suction type foundation, many pile foundations and floatation type basis.The present domestic single gravity type foundation structure that generally adopts, because himself huge weight can keep the stable of works, simple in structure, good stability is widely used in the ocean engineerings such as harbour, harbour.As shown in Figure 1, because single gravity type foundation weight is huge, the bearing capacity of sea bed is difficult to meet the demands, and need to carry out jackstone and process the supporting capacity that improves ground.When the depth of water is larger, the construction operations such as dredging operation, excavating foundation trench, fill block stone throwing and compaction in layers of sea bed all are difficult to carry out, huge monomer basis weight also makes the transportation mounting cost significantly increase.The foundation structure of land wind power generating set also mainly adopts gravity type foundation.For soft foundation, need to adopt various measures and carry out the weak soil punishment, working procedure is complicated, and cost is higher, and the single gravity type foundation scale of construction is huge.
Summary of the invention
Technical problem to be solved by this invention is, for the prior art deficiency, a kind of gravity type foundation structure of many pedestals is provided, improve gravity type foundation to adaptive capacity and the stability of ground, make gravity type foundation can resist larger extraneous moment of torsion, strengthen the resistance to capsizing of gravity type foundation.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of gravity type foundation structure of many pedestals, comprise main gravity base, also comprise a plurality of secondary gravity bases, described secondary gravity base is connected to form a polygon by horizontal shore, described main gravity base is positioned at polygon, and main gravity base is connected by horizontal support bar with each secondary gravity base, is fixed with oblique bracing frame on the described secondary gravity base.
As preferred version, described secondary gravity base quantity is three, and three secondary gravity bases connect in twos by three horizontal shores, form an equilateral triangle, and described main gravity base is positioned at the equilateral triangle center.
As preferred version, the polygon of symmetry centered by the described polygon, described main gravity base is positioned at the polygon symmetrical centre.
One end of described horizontal support bar is connected with the center of secondary gravity base, and the other end is connected with the center of main gravity base.
As preferred version, described oblique bracing frame and horizontal plane angulation are 30 0~60 0
Secondary gravity base weight generally is not less than 20% of main gravity base weight.
Compared with prior art, the beneficial effect that the present invention has is: the present invention is split as a plurality of gravity pedestals with the gravity pedestal that gravity type foundation was single in the past, increase the contact area of basis and ground, reduce the active force of basis to ground, improved adaptive capacity and the stability of gravity type foundation to ground; When using the gravity type foundation structure of many pedestals of the present invention, can dispose according to engineering geological conditions the secondary gravity base of varying number, adjust the length of horizontal support and oblique support, change the distance of secondary gravity base and main gravity base, make gravity type foundation can resist larger extraneous moment of torsion, strengthened basic resistance to capsizing; The present invention can be used as the basis of offshore wind turbine and the tower-type works such as tidal power generating unit, land wind power generating set.
Description of drawings
Fig. 1 is existing gravity type foundation structural representation;
Fig. 2 is one embodiment of the invention lateral view;
Fig. 3 is one embodiment of the invention top view.
The specific embodiment
As shown in Figures 2 and 3, one embodiment of the invention comprises main gravity base 1, also comprise three secondary gravity bases 2, three secondary gravity bases 2 are connected to form an equilateral triangle in twos by three horizontal shores 3, main gravity base 1 is positioned at the equilateral triangle center, main gravity base 1 is connected by a horizontal support bar 7 with three secondary gravity base 2 amongs, an end of described horizontal support bar 7 and being connected of secondary gravity base, and the other end is connected with main gravity base; Respectively be provided with an oblique bracing frame 4 on three secondary gravity bases 2, oblique bracing frame 4 is 45 with the horizontal plane angulation 0, the tower cylinder 6 of works is fixed on the main gravity base 1 by flange or socket joint member 5, and secondary gravity base 2 is connected by flange or socket joint member 5 with oblique bracing frame 4 one ends, and oblique bracing frame 3 other ends are connected with tower cylinder 6 by flange or socket joint member 5.
Secondary gravity base weight generally is not less than 20% of main gravity base weight.
Main gravity base, secondary gravity base, oblique bracing frame and horizontal shore can be the member that steel work, reinforced concrete structure or other materials are made.
The marine installation and transportation process of the gravity type foundation structure of many pedestals is: on land processing and fabricating master gravity base, secondary gravity base, horizontal shore, oblique bracing frame and the combiners such as flange or socket joint member; Harbour is assembled into integral body with it in special-purpose coastal waters; Hang the transportation by driving air bag in each secondary gravity base side, make the gross buoyancy of transportation by driving air bag greater than the total force of gravity type foundation; With tugboat with the gravity type foundation integrally dragging to the infield, with location barge or anchorage hawser location, the burst size of regulating gas in the transportation by driving air bag, the buoyancy size of control transportation by driving air bag, make gross buoyancy be slightly less than total force, thereby guarantee steady, the evenly decline in basis.

Claims (6)

1. the gravity type foundation structure of pedestal more than a kind, comprise main gravity base, it is characterized in that, also comprise a plurality of secondary gravity bases, described secondary gravity base is connected to form a polygon by horizontal shore, described main gravity base is positioned at polygon, and main gravity base is connected by horizontal support bar with each secondary gravity base, is fixed with oblique bracing frame on the described secondary gravity base.
2. the gravity type foundation structure of many pedestals according to claim 1, it is characterized in that described secondary gravity base quantity is three, three secondary gravity bases connect in twos by three horizontal shores, form an equilateral, described main gravity base is positioned at the equilateral triangle center.
3. the gravity type foundation structure of many pedestals according to claim 1 is characterized in that, the polygon of symmetry centered by the described polygon, and described main gravity base is positioned at the polygon symmetrical centre.
4. the gravity type foundation structure of many pedestals according to claim 1 is characterized in that, an end of described horizontal support bar is connected with the center of secondary gravity base, and the other end is connected with the center of main gravity base.
5. the gravity type foundation structure of many pedestals according to claim 1 is characterized in that, described oblique bracing frame and horizontal plane angulation are 30 0~60 0
6. the gravity type foundation structure of many pedestals according to claim 1 is characterized in that, described secondary gravity base weight is not less than 20% of main gravity base weight.
CN201210477397.4A 2012-11-22 2012-11-22 Multi-base gravity type base structure Active CN102912811B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210477397.4A CN102912811B (en) 2012-11-22 2012-11-22 Multi-base gravity type base structure

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CN102912811A true CN102912811A (en) 2013-02-06
CN102912811B CN102912811B (en) 2015-04-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105971002A (en) * 2016-06-30 2016-09-28 三重型能源装备有限公司 Marine fan, gravity type marine fan foundation, and mounting and construction method of gravity type marine fan foundation
CN106401848A (en) * 2016-10-26 2017-02-15 宁波大学 Ocean energy electric generator set
CN109183833A (en) * 2018-10-19 2019-01-11 中冶东方工程技术有限公司 A kind of modularization land assembling structure basis for offshore set-up platform construction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100758546B1 (en) * 2007-04-04 2007-09-13 주식회사 도화종합기술공사 The overthrow preventive construction of high pressure electricity steel tower
CN201746847U (en) * 2009-11-10 2011-02-16 新乡克瑞重型机械科技股份有限公司 Combined multifunctional base of tower crane
CN201835297U (en) * 2010-10-29 2011-05-18 中国海洋石油总公司 Support structure for controlling deformation of large-sized structure
US20110138721A1 (en) * 2010-12-07 2011-06-16 Bharat Sampathkumaran Bagepalli Wind turbine tower assembly and method for assembling the same
CN202899157U (en) * 2012-11-22 2013-04-24 中国水电顾问集团中南勘测设计研究院 Multi-base gravity type foundation structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100758546B1 (en) * 2007-04-04 2007-09-13 주식회사 도화종합기술공사 The overthrow preventive construction of high pressure electricity steel tower
CN201746847U (en) * 2009-11-10 2011-02-16 新乡克瑞重型机械科技股份有限公司 Combined multifunctional base of tower crane
CN201835297U (en) * 2010-10-29 2011-05-18 中国海洋石油总公司 Support structure for controlling deformation of large-sized structure
US20110138721A1 (en) * 2010-12-07 2011-06-16 Bharat Sampathkumaran Bagepalli Wind turbine tower assembly and method for assembling the same
CN202899157U (en) * 2012-11-22 2013-04-24 中国水电顾问集团中南勘测设计研究院 Multi-base gravity type foundation structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
黄维平等: "国外海上风力发电机组基础结构现状", 《中国可再生能源学会海洋能专业委员会第一届学术讨论会文集》, 28 March 2008 (2008-03-28), pages 51 - 58 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105971002A (en) * 2016-06-30 2016-09-28 三重型能源装备有限公司 Marine fan, gravity type marine fan foundation, and mounting and construction method of gravity type marine fan foundation
CN106401848A (en) * 2016-10-26 2017-02-15 宁波大学 Ocean energy electric generator set
CN109183833A (en) * 2018-10-19 2019-01-11 中冶东方工程技术有限公司 A kind of modularization land assembling structure basis for offshore set-up platform construction
CN109183833B (en) * 2018-10-19 2021-04-06 中冶东方工程技术有限公司 Modular land assembly structure foundation for offshore equipment platform construction

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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: Zhongnan Prospecting Design Inst. China Hydrauelectric Consultant Group

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Free format text: CORRECT: APPLICANT; FROM: ZHONGNAN PROSPECTING DESIGN INST. CHINA HYDRAUELECTRIC CONSULTANT GROUP TO: CHINA POWER GROUP ZHONGNAN INVESTIGATION DESIGN + RESEARCH INSTITUTE CO., LTD.

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