CN101255701A - At-sea composite foundation - Google Patents
At-sea composite foundation Download PDFInfo
- Publication number
- CN101255701A CN101255701A CNA2008100025889A CN200810002588A CN101255701A CN 101255701 A CN101255701 A CN 101255701A CN A2008100025889 A CNA2008100025889 A CN A2008100025889A CN 200810002588 A CN200810002588 A CN 200810002588A CN 101255701 A CN101255701 A CN 101255701A
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- foundation
- composite foundation
- pipeline
- barrel
- leveling
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0056—Platforms with supporting legs
- E02B2017/0073—Details of sea bottom engaging footing
- E02B2017/0078—Suction piles, suction cans
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Abstract
A sea hybrid foundation is composed of a cylinder wall 1, a center column 2, a partition plate 3, an upper rib plate 4 and a lower rib plate 5. The invention is characterized in that the cylinder wall 1 and the center column 2 are connected to a whole steel structure through the partition plate 3, the upper rib plate 4 and the lower rib plate 5. The partition plate 3 divides the cylinder wall 1 to two cylinder cavities with one open end. The upper cylinder cavity is filled with fillers with larger specific weight, such as concrete 8. The lower cylinder barrel is homologous to a suction pile. The center column 2 and the inner part are arranged with a bottling pipeline 6 and a leveling pipeline 7. The lower end is respectively connected with the upper cylinder cavity and the lower cavity. The upper end of the bottling pipeline 6 is connected with the concrete pump on a construction supporting boat. The upper end of the leveling pipeline 7 extends to the construction supporting boat, is connected to the suction pump when the platform sinks and is connected to the mud injecting pump when the platform levels. The superiority of the invention is that a hybrid foundation form is provided for settling the problems of difficulty for sinking the cylindrical foundation and insufficient plucking resistance under the conditions of smaller water depth and higher bearing ability of topsoil. The invention also provides a settling plan for increasing the plucking resistance of the cylindrical foundation.
Description
Technical field
The invention belongs to the innovation of basis, ocean engineering field pattern.
Background technology
At present squeeze into formula pile foundation, gravity type foundation and bucket foundation as the basic pattern of marine engineering structure, wherein gravity type foundation and bucket foundation are the shallow foundations that utilizes the shallow soil supporting capacity.The gravity type foundation offshore structure relies on the gravity that itself acts on the seabed to keep offshore structure stablizing under wind wave action, and the basis is comparatively concentrated with the contact surface of soil, therefore the supporting capacity of topsoil is had relatively high expectations; In order to increase the weight of offshore structure, the gravity offshore structure generally adopts concrete structure, and yardstick is bigger, so gravity type foundation is suitable as the basis of large-scale offshore structure.Bucket foundation relies on its structure itself to embed the end resistance of topsoil generation and the environmental forces that the sidewall frictional resistance bears offshore structure, and the basis comparatively disperses along the width and the degree of depth with the contact surface of soil, and is therefore also relatively low to the requirement of top layer soil property; Cylinder-shaped foundation structure form and special marine immersion method-suction sinking method adapt, and therefore are also referred to as suction type foundation; Bucket foundation suction sinking and depth condition have relation, and the bigger depth of water is the necessary condition that is easy to generate bigger sinking power.Adopt bucket foundation under, the topsoil bearing capacity conditions of higher more shallow in the depth of water, because the sinking resistance is relatively large, and sinking power is less relatively, make bucket foundation to go into the mud degree of depth limited, cause bucket foundation resistance to plucking scarce capacity under the state on the throne.
Summary of the invention
Cartridge type foundation immersion difficulty and resistance to plucking scarce capacity problem under, the topsoil bearing capacity conditions of higher more shallow in the depth of water in order to solve the invention provides a kind of at-sea composite foundation.This composite foundation has the feature of gravity type foundation and bucket foundation concurrently, based on steel work, adopts the mode of cast-in-place concrete to increase its weight, and its anti-pulling capacity depends on that its construction weight and its go into the side skin friction of mud part.
The technical solution adopted for the present invention to solve the technical problems is: the at-sea composite foundation structure is made up of barrel, central post, dividing plate, last floor and following floor, it is characterized in that being connected to whole steel work by dividing plate, last floor and following floor between barrel and the central post, dividing plate is welded in the barrel, barrel is divided into the tube chamber of two one end openings, the filler that top cylinder intra-bladder instillation proportion is bigger is as concrete; The doffing chamber is equivalent to suction pile.Fill up line of central post internal placement and a leveling pipeline.The fill up line lower end is divided into three road even cloth and is connected to the top cylinder chamber, and the upper end supports the concrete pump on the ship to be connected with construction.Leveling pipeline lower end is divided into the three tunnel uniform doffing chambeies that are connected in, and the upper end causes construction and supports to be connected with suction pump when drawing water sinking on the ship, is connected with grouting pump when the platform structure leveling.When install at the platform structure sea of composite foundation, can transport by barge loading, crane ship lifting entry, after at the bottom of the platform structure seat, can carry out the concrete pouring operation, draw water by the doffing chamber then and realize that basic injection ocean bottom soil reaches design elevation, starch the leveling of implementation platform structure at last by the silt particle of pouring water to the doffing chamber.In addition,, can composite foundation be embedded in below the mud face, or flush, prevent that ocean current from washing away the adverse effect of the basal perimeter soil body by in advance towards mud, the method filled and led up afterwards with the mud face for the lower situation of topsoil bearing capacity.
The invention has the beneficial effects as follows, a kind of composite foundation pattern is provided, solution is more shallow in the depth of water, cartridge type foundation immersion difficulty and resistance to plucking scarce capacity problem under the topsoil bearing capacity conditions of higher, and a kind of solution that improves bucket foundation resistance to plucking ability is provided.This composite foundation sea is easy for installation, and has made full use of the higher characteristics of topsoil bearing capacity, and basic steel work weight is reduced to greatest extent, has reached the purpose that reduces expense.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the state diagram on the throne that the post of installation invention holds formula structure such as platform structure;
Fig. 2 is that what invention to be installed is the state diagram on the throne of floating structure such as tension leg spar structures;
Fig. 3 is the present invention's state profile on the throne, is applicable to the higher situation of topsoil bearing capacity;
Fig. 4 is the present invention's state profile on the throne, is applicable to the low situation of topsoil bearing capacity;
Fig. 5 is an A-A sectional view of the present invention;
Fig. 6 is a B-B sectional view of the present invention.
Wherein: the 1-barrel; The 2-central post; The 3-dividing plate; The last floor of 4-; Floor under the 5-; The 6-fill up line; 7-leveling pipeline; The 8-concrete; The 9-cement mortar; 10-platform column; The 11-Platform Deck; 12-floating drum, 13-anchor chain, 14-seabed mud face, the 15-water surface.
The specific embodiment
As shown in Figure 1, post holds typical case's representative of formula structure---platform structure employing composite foundation, and the platform column respectively connects a composite foundation for 10 times, and under the higher situation of topsoil bearing capacity, the composite foundation end face is higher than seabed mud face 15, sees Fig. 3.
As shown in Figure 2, be typical case's representative of floating structure---tension leg spar structures employing composite foundation, connect by two anchor chains 13 between each composite foundation tube, under the low situation of topsoil bearing capacity, composite foundation is embedded in seabed mud face and flushes below 15 or with seabed mud face 15, sees Fig. 4.
The structure of composite foundation is seen Fig. 3, Fig. 4, Fig. 5 box Fig. 6, is connected to whole steel work by dividing plate 3, last floor 4 and following floor 5 between barrel 1 and the central post 2, and dividing plate 3 is divided into barrel 1 in the tube chamber of two one end openings; Central post 2 is connected with platform column 10 bottoms, fill up line 6 of its internal placement and a leveling pipeline 7.Fill up line 6 lower ends are divided into three road even cloth and are connected to the top cylinder chamber, and the upper end extends to construction and supports to be connected with concrete pump on the ship.Leveling pipeline 7 lower ends are divided into the three tunnel uniform doffing chambeies that are connected in, and the upper end extends to construction and supports to be connected with suction pump when drawing water sinking on the ship, is connected with grouting pump when the platform structure leveling
Platform structure for composite foundation, during marine the installation, can transport by barge loading, crane ship lifting entry, after at the bottom of the platform structure seat, get final product heading top cylinder chamber concrete perfusion 8, draw water by the doffing chamber then and realize that basic injection ocean bottom soil reaches design elevation, starch the leveling of 9 implementation platform structures at last by the silt particle of pouring water to the doffing chamber.
Tension leg spar structures for the composite foundation among Fig. 2, during marine the installation, floating drum 12 is assembled into one with composite foundation temporarily, is transported by barge loading, carry out before the installation towards the mud operation, installation process thereafter is identical with the installation process of the platform structure of composite foundation; After the installation of basis, carry out the soil backfill, remove floating drum 12 afterwards and be connected with composite foundation is temporary fixed, by unloading operation, make floating drum rise to the design head position, anchor chain 13 is straightened simultaneously.
Claims (5)
1. an at-sea composite foundation is made up of barrel, central post, dividing plate, last floor and following floor, it is characterized in that being connected to whole steel work by dividing plate, last floor and following floor between barrel and the central post.
2. according to the at-sea composite foundation of claim 1, it is characterized in that said dividing plate is welded in the barrel, with barrel be divided into two one end openings the tube chamber, the filler that top cylinder intra-bladder instillation proportion is bigger, as concrete, the doffing chamber is equivalent to suction pile.
3. according to the at-sea composite foundation of claim 1, it is characterized in that said central post is connected with the column bottom of platform structure, fill up line of its internal placement and a leveling pipeline.
4. according to the at-sea composite foundation of claim 1, it is characterized in that said fill up line lower end is divided into three road even cloth and is connected to the top cylinder chamber, the upper end extends to construction and supports to be connected with concrete pump on the ship.
5. according to the at-sea composite foundation of claim 1, it is characterized in that said leveling pipeline lower end is divided into the three tunnel uniform doffing chambeies that are connected in, the upper end extends to construction and supports to be connected with suction pump when drawing water sinking on the ship; When the platform structure leveling, be connected with grouting pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100025889A CN101255701A (en) | 2007-01-25 | 2008-01-09 | At-sea composite foundation |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710056588 | 2007-01-25 | ||
| CN200710056588.2 | 2007-01-25 | ||
| CNA2008100025889A CN101255701A (en) | 2007-01-25 | 2008-01-09 | At-sea composite foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101255701A true CN101255701A (en) | 2008-09-03 |
Family
ID=39890781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100025889A Withdrawn CN101255701A (en) | 2007-01-25 | 2008-01-09 | At-sea composite foundation |
Country Status (1)
| Country | Link |
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| CN (1) | CN101255701A (en) |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429770A (en) * | 2008-10-31 | 2009-05-13 | 中国科学院力学研究所 | Barrel base reinforcing method in calcareous sand |
| CN101798822A (en) * | 2010-03-09 | 2010-08-11 | 三一电气有限责任公司 | Sinking or floating control method and device of multi-chamber barrel-shaped base |
| CN101812849A (en) * | 2010-04-02 | 2010-08-25 | 中国海洋石油总公司 | Offshore single-pile base structure and installation method thereof |
| CN101666101B (en) * | 2009-09-29 | 2011-08-03 | 道达(上海)风电投资有限公司 | Movable prefabricated multi-barrel type gravity mixed foundation |
| CN102268880A (en) * | 2010-06-04 | 2011-12-07 | 中国海洋石油总公司 | Through-middle type cylindrical foundation and mounting process |
| CN102277876A (en) * | 2011-05-17 | 2011-12-14 | 石家庄铁道大学 | Multifunctional pile-raft foundation and construction process thereof |
| CN102628277A (en) * | 2012-04-18 | 2012-08-08 | 中国水电顾问集团华东勘测设计研究院 | Transition section-free monopile offshore wind turbine foundation structure |
| CN102733407A (en) * | 2011-04-01 | 2012-10-17 | 上海同济启明星科技发展有限公司 | Two-ring grouted single pile foundation |
| CN102762796A (en) * | 2009-09-14 | 2012-10-31 | 叶片离岸服务有限公司 | Method, apparatus and system for attaching an anchor member to a floor of a body of water |
| CN103184741A (en) * | 2013-03-28 | 2013-07-03 | 天津大学 | Foundation of composite gravity-type offshore wind power generating unit |
| WO2014114235A1 (en) * | 2013-01-22 | 2014-07-31 | Wu Zhirong | Suction-type pile leg, offshore caisson, and seabed-fixed offshore platform |
| WO2014175751A1 (en) * | 2013-04-26 | 2014-10-30 | Ces Technology As | A suction anchor, a composite module segment for a suction anchor and a method for assembling such segments |
| CN104395530A (en) * | 2013-01-22 | 2015-03-04 | 吴植融 | Suction-type pile leg, offshore caisson, and seabed-fixed offshore platform |
| WO2016109962A1 (en) * | 2015-01-08 | 2016-07-14 | Cbj (Hong Kong) Ocean Engineering Limited | Construction method for fixing offshore marine platform to a seabed having layers of a soil/clay nature |
| 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 |
| CN107023275A (en) * | 2017-03-23 | 2017-08-08 | 中国海洋石油总公司 | Block is prized under water and bottom method is sat in efficient self-adapted seat bottom |
| CN107542102A (en) * | 2017-09-28 | 2018-01-05 | 天津大学 | A kind of five floating drum buoyancy tank combined type foundation structures of sea and its construction method |
| CN107542101A (en) * | 2017-09-28 | 2018-01-05 | 天津大学 | A kind of four floating drum buoyancy tank combined type foundation structures of sea and its construction method |
| CN107630461A (en) * | 2017-09-28 | 2018-01-26 | 天津大学 | Four floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea |
| CN107630462A (en) * | 2017-09-28 | 2018-01-26 | 天津大学 | A kind of six floating drum buoyancy tank combined type foundation structures of sea and its construction method |
| CN107653895A (en) * | 2017-09-28 | 2018-02-02 | 天津大学 | Six floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea |
| CN107724414A (en) * | 2017-09-28 | 2018-02-23 | 天津大学 | Five floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea |
| CN107740436A (en) * | 2017-09-28 | 2018-02-27 | 天津大学 | A kind of three floating drum buoyancy tank combined type foundation structures of sea and its construction method |
| CN107806108A (en) * | 2017-09-28 | 2018-03-16 | 天津大学 | Three floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea |
| CN108442401A (en) * | 2018-05-23 | 2018-08-24 | 中国科学院力学研究所 | A kind of combined type sea upper fan foundation structure |
| CN108643223A (en) * | 2018-05-18 | 2018-10-12 | 中交上海三航科学研究院有限公司 | The composite base structure and attaching method thereof of jacket and negative pressure bucket |
| CN110952590A (en) * | 2019-12-04 | 2020-04-03 | 浙江大学 | Gravity type foundation with retractable toothed plate and installation method thereof |
| CN111356818A (en) * | 2017-09-07 | 2020-06-30 | 艾奎诺能源公司 | Ocean suction anchor |
-
2008
- 2008-01-09 CN CNA2008100025889A patent/CN101255701A/en not_active Withdrawn
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429770A (en) * | 2008-10-31 | 2009-05-13 | 中国科学院力学研究所 | Barrel base reinforcing method in calcareous sand |
| CN102762796A (en) * | 2009-09-14 | 2012-10-31 | 叶片离岸服务有限公司 | Method, apparatus and system for attaching an anchor member to a floor of a body of water |
| CN101666101B (en) * | 2009-09-29 | 2011-08-03 | 道达(上海)风电投资有限公司 | Movable prefabricated multi-barrel type gravity mixed foundation |
| CN101798822A (en) * | 2010-03-09 | 2010-08-11 | 三一电气有限责任公司 | Sinking or floating control method and device of multi-chamber barrel-shaped base |
| CN101798822B (en) * | 2010-03-09 | 2012-02-22 | 三一电气有限责任公司 | Sinking or floating control method and device of multi-chamber barrel-shaped base |
| CN101812849A (en) * | 2010-04-02 | 2010-08-25 | 中国海洋石油总公司 | Offshore single-pile base structure and installation method thereof |
| CN102268880A (en) * | 2010-06-04 | 2011-12-07 | 中国海洋石油总公司 | Through-middle type cylindrical foundation and mounting process |
| CN102733407A (en) * | 2011-04-01 | 2012-10-17 | 上海同济启明星科技发展有限公司 | Two-ring grouted single pile foundation |
| CN102277876A (en) * | 2011-05-17 | 2011-12-14 | 石家庄铁道大学 | Multifunctional pile-raft foundation and construction process thereof |
| CN102628277B (en) * | 2012-04-18 | 2014-11-12 | 中国水电顾问集团华东勘测设计研究院 | Transition section-free monopile offshore wind turbine foundation structure |
| CN102628277A (en) * | 2012-04-18 | 2012-08-08 | 中国水电顾问集团华东勘测设计研究院 | Transition section-free monopile offshore wind turbine foundation structure |
| CN104395530B (en) * | 2013-01-22 | 2016-08-24 | 吴植融 | Suction type spud leg, marine caisson and bottom-sitting type offshore platform |
| WO2014114235A1 (en) * | 2013-01-22 | 2014-07-31 | Wu Zhirong | Suction-type pile leg, offshore caisson, and seabed-fixed offshore platform |
| CN104395530A (en) * | 2013-01-22 | 2015-03-04 | 吴植融 | Suction-type pile leg, offshore caisson, and seabed-fixed offshore platform |
| US10060090B2 (en) | 2013-01-22 | 2018-08-28 | Zhirong Wu | Type of suction leg, an offshore caisson and a sit-on-bottom offshore platform |
| CN103184741A (en) * | 2013-03-28 | 2013-07-03 | 天津大学 | Foundation of composite gravity-type offshore wind power generating unit |
| WO2014175751A1 (en) * | 2013-04-26 | 2014-10-30 | Ces Technology As | A suction anchor, a composite module segment for a suction anchor and a method for assembling such segments |
| WO2016109962A1 (en) * | 2015-01-08 | 2016-07-14 | Cbj (Hong Kong) Ocean Engineering Limited | Construction method for fixing offshore marine platform to a seabed having layers of a soil/clay nature |
| 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 |
| CN107023275A (en) * | 2017-03-23 | 2017-08-08 | 中国海洋石油总公司 | Block is prized under water and bottom method is sat in efficient self-adapted seat bottom |
| CN111356818A (en) * | 2017-09-07 | 2020-06-30 | 艾奎诺能源公司 | Ocean suction anchor |
| CN107630462A (en) * | 2017-09-28 | 2018-01-26 | 天津大学 | A kind of six floating drum buoyancy tank combined type foundation structures of sea and its construction method |
| CN107630461A (en) * | 2017-09-28 | 2018-01-26 | 天津大学 | Four floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea |
| CN107653895A (en) * | 2017-09-28 | 2018-02-02 | 天津大学 | Six floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea |
| CN107724414A (en) * | 2017-09-28 | 2018-02-23 | 天津大学 | Five floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea |
| CN107740436A (en) * | 2017-09-28 | 2018-02-27 | 天津大学 | A kind of three floating drum buoyancy tank combined type foundation structures of sea and its construction method |
| CN107806108A (en) * | 2017-09-28 | 2018-03-16 | 天津大学 | Three floating drum buoyancy tank foundation structures and its construction method on a kind of combined type sea |
| CN107542101A (en) * | 2017-09-28 | 2018-01-05 | 天津大学 | A kind of four floating drum buoyancy tank combined type foundation structures of sea and its construction method |
| CN107542102A (en) * | 2017-09-28 | 2018-01-05 | 天津大学 | A kind of five floating drum buoyancy tank combined type foundation structures of sea and its construction method |
| CN108643223A (en) * | 2018-05-18 | 2018-10-12 | 中交上海三航科学研究院有限公司 | The composite base structure and attaching method thereof of jacket and negative pressure bucket |
| CN108442401A (en) * | 2018-05-23 | 2018-08-24 | 中国科学院力学研究所 | A kind of combined type sea upper fan foundation structure |
| CN110952590A (en) * | 2019-12-04 | 2020-04-03 | 浙江大学 | Gravity type foundation with retractable toothed plate and installation method thereof |
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