CN102277878B - Floating foundation and construction method thereof - Google Patents
Floating foundation and construction method thereof Download PDFInfo
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- CN102277878B CN102277878B CN201110122856.2A CN201110122856A CN102277878B CN 102277878 B CN102277878 B CN 102277878B CN 201110122856 A CN201110122856 A CN 201110122856A CN 102277878 B CN102277878 B CN 102277878B
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- 238000010276 construction Methods 0.000 title claims abstract description 71
- 238000007667 floating Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 abstract description 7
- 238000009417 prefabrication Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses a floating foundation which comprises an anchor tying system, wherein the anchor tying system comprises an anchor body and an anchor chain connected to the anchor body; a concentric-circle-liked hollow closed steel foundation buoyancy tank is connected to the anchor chain, and the center of the foundation buoyancy tank is provided with an installation platform; a water passing loop, an anchor chain passage and an anchor chain fixing device are arranged on the foundation buoyancy tank; and the anchor chain passes through the anchor chain passage and is connected with the anchor chain fixing device. The invention also discloses a construction method of the floating foundation. According to the invention, the foundation buoyancy tank can be simply and conveniently located in water, thus equipment is convenient for installation and the floating foundation is avoided from being influenced by water waves. The floating foundation has the advantages of simpleness and rapidness in construction, less quantity of required construction equipment, no need of special floating foundation construction equipment and integral prefabrication, integrated transportation, low construction cost and low comprehensive construction cost.
Description
Technical field
The present invention relates to a kind of buoyant foundation and construction method thereof, particularly relate to a kind of buoyant foundation and construction method thereof that can transportation by driving.
Background technology
At present, at sea, in wind-powered electricity generation engineering, basis generally includes: single pile (Mono-pile), tripod (Tripod), jacket-type basis (Jacket), gravity foundation (Gravity based), negative pressure bucket base (Suction Bucket) and floating platform structure (Floating type) etc. are several.These bases need on-the-spot installation or integral prefabricated conventionally, and whole Transporting is then carried out the installation of blower fan after foundation construction completes again.It is higher that work time cost is executed in marine site in above-mentioned basis, especially to the construction equipment of buoyant foundation, requires higher.
Summary of the invention
The present invention provides a kind of buoyant foundation and construction method thereof that can transportation by driving for solving the technical problem existing in known technology, and this basis and construction method thereof can obviously reduce basic construction cost.
The present invention for first technical scheme that solves the technical problem that exists in known technology and take is: a kind of buoyant foundation that can transportation by driving, comprise being anchor system, and described is that anchor system comprises anchor body and is connected to the anchor chain on anchor body; On described anchor chain, be connected with three-back-shaped hollow airtight steel basis buoyancy tank, the central authorities of described basic buoyancy tank are provided with mounting platform, described basic buoyancy tank was provided with water lines, anchor chain path and anchor chain fastening devices, and described anchor chain is connected with described anchor chain fastening devices through described anchor chain path.
Described anchor body is suction anchor or dull and stereotyped anchor.
The present invention for second technical scheme that solves the technical problem that exists in known technology and take is: the construction method of above-mentioned buoyant foundation that can transportation by driving, comprises the following steps:
The first step, prefabricated three-back-shaped hollow airtight steel basis buoyancy tank, the auxiliary buoyancy tank of construction and tube connector; The central authorities of described basic buoyancy tank are provided with mounting platform, and described basic buoyancy tank was provided with water lines, anchor chain path and anchor chain fastening devices; The auxiliary buoyancy tank of described construction is the hollow airtight steel buoyancy tank of detachable Combined type back font, and the auxiliary buoyancy tank of described construction is provided with anchor chain path and anchor chain fastening devices;
Second step, anchor body puts in place by the position construction of design in advance, on anchor body, connects anchor chain, connects buoy ball on anchor chain;
The 3rd step, adopts tube connector that buoyant foundation buoyancy tank and the auxiliary buoyancy tank of construction are linked together by removably connecting, and makes described tube connector assist the anchor chain path on buoyancy tank to be all communicated with anchor chain path and described construction on the buoyancy tank of described buoyant foundation; According to buoy ball indicating positions, the auxiliary buoyancy tank transportation by driving of the tube connector being connected, buoyant foundation buoyancy tank and construction is in place, anchor chain is assisted to the anchor chain path on buoyancy tank through the structural anchor chain path in buoyant foundation, tube connector and construction from bottom to up successively, and be connected in the anchor chain fastening devices on the auxiliary buoyancy tank of construction;
The 4th step, by the mistake water lines on basic buoyancy tank to water filling in the buoyancy tank of buoyant foundation, making it lose part buoyancy moves down, when it enters water completely, the auxiliary buoyancy tank of construction floating on the surface provides integrally-built buoyancy, stop water filling, equipment is arranged on the mounting platform of buoyant foundation buoyancy tank;
The 5th step, removes anchor chain from the auxiliary buoyancy tank of constructing, be connected in the anchor chain fastening devices on the buoyancy tank of buoyant foundation, and the water body in the buoyancy tank of buoyant foundation is extracted out by the mistake water lines on it, and anchor chain is tightened; To construct and assist buoyancy tank and tube connector to remove, buoyant foundation construction is complete.
Described tube connector is connected with the auxiliary buoyancy tank of described buoyant foundation buoyancy tank and described construction by crab-bolt or self-disassembling device.
Advantage and good effect that the present invention has are: by adopting three-back-shaped hollow airtight steel basis buoyancy tank, and by construction, assist the collaborative construction operation of buoyancy tank and tube connector, the buoyancy that employing is subject to the method adjustment basis buoyancy tank of water filling in basic buoyancy tank and draining, can simply and easily basic buoyancy tank be positioned in water, not only facilitated the installation of equipment, and made buoyant foundation avoid being subject to the impact of stormy waves waterborne; The present invention constructs simply, fast, required construction equipment seldom, without special buoyant foundation construction equipment, also need not integral prefabricated, whole Transporting, construction cost is low, comprehensive cost is low.
Accompanying drawing explanation
Fig. 1 is for implementing the schematic diagram of construction method second step of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is for implementing the schematic diagram of construction method of the present invention the 3rd step;
Fig. 4 is the top view of buoyant foundation buoyancy tank in construction method of the present invention;
Fig. 5 is the top view of the auxiliary buoyancy tank of construction in construction method of the present invention;
Fig. 6 is for implementing the schematic diagram of construction method of the present invention the 4th step;
Fig. 7 is for implementing the schematic diagram of construction method of the present invention the 5th step, that is the structural representation of the buoyant foundation that the present invention can transportation by driving.
In figure: 1, suction anchor, 2, anchor chain, 3, buoy ball, 4, tube connector, 5, buoyant foundation buoyancy tank, 6, the auxiliary buoyancy tank of construction, 7, anchor chain path, 8, anchor chain path, 9, cross, 10, blower fan tower barrel mounting platform, 11, blower fan, 12, anchor chain fastening devices.
The specific embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 7, a kind of offshore wind turbine buoyant foundation that can transportation by driving, comprises being anchor system and three-back-shaped hollow airtight steel basis buoyancy tank 5; Be the steel suction anchor 1 that anchor system comprises the high 6m of diameter 3m, the steel anchor chain 2 of bearing capacity 100t; The high 10m of the three-back-shaped hollow airtight steel basis wide 50m of the long 50m of buoyancy tank 5, hollow is of a size of 30m * 30m, wherein be welded with cross support 9, the central authorities of cross support 9 are provided with circular blower fan 11 tower cylinder mounting platforms 10, the diameter of mounting platform 10 is 8m, and cross support 9 adopts the square steel that cross section is 50cm * 50cm to be welded.On the buoyancy tank of basis, four bights are respectively equipped with the anchor chain path 7 of diameter 15cm, be also provided with anchor chain fastening devices 12 and cross water lines (not shown) anchor chain 2 and pass anchor chain path 7 and be connected with anchor chain fastening devices 12 on basic buoyancy tank.
Above-mentioned suction anchor also can replace with dull and stereotyped anchor, and material is steel; Above-mentioned anchor chain is generally steel anchor chain; Above-mentioned basic buoyancy tank 5 is generally steel, long and wide more than 30m, and height is more than 5m, and middle blower fan tower barrel mounting platform can be for circular or square.
Above-mentioned buoyant foundation not only can be for offshore wind turbine 11, can also be for other marine equipment, such as: offshore anemometer tower etc.
The construction method of above-mentioned buoyant foundation that can transportation by driving, comprises the following steps:
The first step, prefabricated above-mentioned three-back-shaped hollow airtight steel basis buoyancy tank 5, the auxiliary buoyancy tank 6 of construction and tube connector 4; The auxiliary buoyancy tank of described construction is the hollow airtight steel buoyancy tank of detachable Combined type back font, the auxiliary at least removable two parts that are divided into of buoyancy tank 6 of construction; So that the dismounting after equipment installation; The auxiliary buoyancy tank of described construction is provided with anchor chain path 8 and anchor chain fastening devices (not shown); The auxiliary high 10m of the wide 50m of the long 50m of buoyancy tank 6 of construction in the present embodiment, four bights of the auxiliary buoyancy tank 6 of construction are respectively equipped with the anchor chain path 8 of diameter 15cm.
Second step, anchor body puts in place by the position construction of design in advance, connects anchor chain 2 on anchor body, connects buoy ball 3 on anchor chain 2;
The 3rd step, by removably connecting, adopt tube connector 4 that buoyant foundation buoyancy tank 5 and the auxiliary buoyancy tank 6 of construction are linked together, and make described tube connector 4 assist the anchor chain path 8 on buoyancy tank to be all communicated with anchor chain path 7 and described construction on the buoyancy tank of described buoyant foundation, to form the passage of anchor chain; According to the indicating positions of buoy ball 3, auxiliary buoyancy tank 6 transportation by drivings of the tube connector being connected 4, buoyant foundation buoyancy tank 5 and construction are in place, anchor chain 3 is assisted to the anchor chain path 8 on buoyancy tank through the structural anchor chain path 7 in buoyant foundation, tube connector 4 and construction from bottom to up successively, and be connected in the anchor chain fastening devices on the auxiliary buoyancy tank of construction; Above-mentioned tube connector 4 can be connected with buoyant foundation buoyancy tank 5 and the auxiliary buoyancy tank 6 of construction by crab-bolt or self-disassembling device, so that the dismounting after equipment installation.
The 4th step, by the mistake water lines on basic buoyancy tank to the interior water filling of buoyant foundation buoyancy tank 5, making it lose part buoyancy moves down, when it enters water completely, the auxiliary buoyancy tank 6 of construction floating on the surface provides integrally-built buoyancy, stops water filling, equipment is arranged on the mounting platform 10 of buoyant foundation buoyancy tank, now, the buoyancy of total system is provided by the auxiliary buoyancy tank 6 of constructing;
The 5th step, removes anchor chain 2 from the auxiliary buoyancy tank 6 of constructing, be connected in the anchor chain fastening devices 12 on buoyant foundation buoyancy tank 5, and the water body in buoyant foundation buoyancy tank 5 is extracted out by the mistake water lines on it, and anchor chain 2 is tightened; To construct and assist buoyancy tank 6 and tube connector 4 to remove, buoyant foundation construction is complete, and complete equipment installs.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, within these all belong to protection scope of the present invention.
Claims (2)
1. a construction method for buoyant foundation that can transportation by driving, is characterized in that, comprises the following steps:
The first step, prefabricated three-back-shaped hollow airtight steel buoyant foundation buoyancy tank, the auxiliary buoyancy tank of construction and tube connector; The central authorities of described buoyant foundation buoyancy tank are provided with mounting platform, and described buoyant foundation buoyancy tank was provided with water lines, anchor chain path and anchor chain fastening devices; The auxiliary buoyancy tank of described construction is the hollow airtight steel buoyancy tank of detachable Combined type back font, and the auxiliary buoyancy tank of described construction is provided with anchor chain path and anchor chain fastening devices;
Second step, anchor body puts in place by the position construction of design in advance, on anchor body, connects anchor chain, connects buoy ball on anchor chain;
The 3rd step, adopts tube connector that buoyant foundation buoyancy tank and the auxiliary buoyancy tank of construction are linked together by removably connecting, and makes described tube connector assist the anchor chain path on buoyancy tank to be all communicated with anchor chain path and described construction on the buoyancy tank of described buoyant foundation; According to buoy ball indicating positions, the auxiliary buoyancy tank transportation by driving of the tube connector being connected, buoyant foundation buoyancy tank and construction is in place, anchor chain is assisted to the anchor chain path on buoyancy tank through anchor chain path, tube connector and construction on the buoyancy tank of buoyant foundation from bottom to up successively, and be connected in the anchor chain fastening devices on the auxiliary buoyancy tank of construction;
The 4th step, by the mistake water lines on the buoyancy tank of buoyant foundation to water filling in the buoyancy tank of buoyant foundation, making it lose part buoyancy moves down, when it enters water completely, the auxiliary buoyancy tank of construction floating on the surface provides integrally-built buoyancy, stop water filling, equipment is arranged on the mounting platform of buoyant foundation buoyancy tank;
The 5th step, removes anchor chain from the auxiliary buoyancy tank of constructing, be connected in the anchor chain fastening devices on the buoyancy tank of buoyant foundation, and the water body in the buoyancy tank of buoyant foundation is extracted out by the mistake water lines on it, and anchor chain is tightened; To construct and assist buoyancy tank and tube connector to remove, buoyant foundation construction is complete
2. construction method according to claim 1, is characterized in that, described tube connector is connected with the auxiliary buoyancy tank of described buoyant foundation buoyancy tank and described construction by crab-bolt or self-disassembling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110122856.2A CN102277878B (en) | 2011-05-12 | 2011-05-12 | Floating foundation and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110122856.2A CN102277878B (en) | 2011-05-12 | 2011-05-12 | Floating foundation and construction method thereof |
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| CN102277878A CN102277878A (en) | 2011-12-14 |
| CN102277878B true CN102277878B (en) | 2014-03-12 |
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| CN201110122856.2A Active CN102277878B (en) | 2011-05-12 | 2011-05-12 | Floating foundation and construction method thereof |
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| CN102677694B (en) * | 2012-05-30 | 2015-05-13 | 天津大学 | Offshore wind power submersible foundation structure and complete fan installation construction method thereof |
| CN102677693B (en) * | 2012-05-30 | 2014-06-25 | 天津大学 | Maritime submersible foundation structure and construction method thereof |
| CN102704502A (en) * | 2012-05-30 | 2012-10-03 | 天津大学 | Offshore submerged box type foundation structure and construction method thereof |
| CN102704506B (en) * | 2012-05-30 | 2014-07-16 | 天津大学 | Offshore submerged foundation structure and construction method thereof |
| CN102704503A (en) * | 2012-05-30 | 2012-10-03 | 天津大学 | Offshore submerged box type foundation structure and construction method thereof |
| CN104627331B (en) * | 2015-01-27 | 2016-11-30 | 天津大学 | A kind of wind-power electricity generation buoyant foundation |
| CN104743073A (en) * | 2015-03-31 | 2015-07-01 | 长沙理工大学 | Semi-submersible type wave energy and wind energy comprehensive utilization device |
| CN108248783B (en) * | 2018-01-23 | 2019-12-10 | 天津大学 | construction method of offshore wind power submersible floating foundation |
| CN108316335B (en) * | 2018-01-23 | 2023-06-27 | 天津大学 | Tensioning mooring submerged floating foundation and construction method thereof |
| CN108407987B (en) * | 2018-01-23 | 2019-12-06 | 天津大学 | Overwater stretched offshore wind power floating foundation and construction method thereof |
| CN108407986B (en) * | 2018-01-23 | 2019-10-25 | 天津大学 | It is a kind of can transportation by driving offshore wind farm buoyant foundation and its construction method |
| CN108454799B (en) * | 2018-01-23 | 2019-10-29 | 天津大学 | A kind of offshore wind farm buoyant foundation transportation by driving construction method |
| CN110857556A (en) * | 2018-08-23 | 2020-03-03 | 中铁第五勘察设计院集团有限公司 | Wharf buoyancy tank positioning device |
| CN110158638A (en) * | 2019-06-12 | 2019-08-23 | 长江勘测规划设计研究有限责任公司 | Offshore wind farm composite tube foundation construction structure and construction method |
| CN112761893A (en) * | 2021-01-22 | 2021-05-07 | 上海理工大学 | Novel double-body floating type wind turbine platform with fractal structure |
| CN114212214A (en) * | 2021-11-26 | 2022-03-22 | 上海电气风电集团股份有限公司 | Integral transportation and installation tool and method for tension leg floating type fan system |
| CN114455016A (en) * | 2022-03-10 | 2022-05-10 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power foundation |
| CN114604373B (en) * | 2022-03-11 | 2023-05-12 | 上海勘测设计研究院有限公司 | Ballast type offshore wind power complete machine transportation and installation ship and method |
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