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CN102277878A - Floating foundation and construction method thereof - Google Patents

Floating foundation and construction method thereof Download PDF

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Publication number
CN102277878A
CN102277878A CN2011101228562A CN201110122856A CN102277878A CN 102277878 A CN102277878 A CN 102277878A CN 2011101228562 A CN2011101228562 A CN 2011101228562A CN 201110122856 A CN201110122856 A CN 201110122856A CN 102277878 A CN102277878 A CN 102277878A
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anchor chain
buoyancy tank
anchor
foundation
construction
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CN2011101228562A
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CN102277878B (en
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丁红岩
张浦阳
练继建
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JIANGSU DAODA OFFSHORE WIND POWER ENGINEERING TECHNOLOGY Co Ltd
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Tianjin University
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Abstract

本发明公开了一种可浮运的浮式基础，包括系锚系统，所述系锚系统包括锚体和连接在锚体上的锚链；所述锚链上连接有回字形空心密闭钢质基础浮箱，所述基础浮箱的中央设有安装平台，所述基础浮箱上设有过水管路、锚链通路和锚链固定装置，所述锚链穿过所述锚链通路与所述锚链固定装置连接。本发明还公开了上述浮式基础的施工方法。本发明能够简单方便地将基础浮箱定位在水中，不但方便了设备的安装，而且使浮式基础避免了受到水上风浪的影响；本发明施工简单、快速，所需施工设备很少，无需特殊的浮式基础施工设备，也不用整体预制、整体运输，施工成本低、综合造价低。

The invention discloses a floating foundation that can be floated, comprising a mooring system. The mooring system includes an anchor body and an anchor chain connected to the anchor body; A basic buoyant tank, the center of the basic buoyant tank is provided with an installation platform, and the basic buoyant tank is provided with a water-passing pipeline, an anchor chain passage and an anchor chain fixing device, and the anchor chain passes through the anchor chain passage and the anchor chain fixing device. The above-mentioned anchor chain fixing device is connected. The invention also discloses a construction method for the floating foundation. The invention can simply and conveniently position the foundation floating tank in the water, which not only facilitates the installation of equipment, but also avoids the floating foundation from being affected by wind and waves on the water; the invention is simple and fast in construction, requires few construction equipment, and does not need special The floating foundation construction equipment does not need to be prefabricated or transported as a whole, so the construction cost is low and the overall cost is low.

Description

But a kind of buoyant foundation of transportation by driving and job practices thereof
Technical field
The present invention relates to a kind of buoyant foundation and job practices thereof, but particularly relate to a kind of buoyant foundation and job practices thereof of transportation by driving.
Background technology
At present, at sea in the wind-powered electricity generation engineering, the basis generally includes: single pile (Mono-pile), tripod (Tripod), jacket-type basis (Jacket), gravity basis (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 usually, and whole Transporting is carried out the installation of blower fan then again after foundation construction is finished.Expense is higher when construct in the marine site in above-mentioned basis, and especially the construction equipment to the buoyant foundation requires than higher.
Summary of the invention
But the present invention provides a kind of buoyant foundation and job practices thereof of transportation by driving for solving the technical problem that exists in the known technology, and this basis and job practices thereof can obviously reduce the construction cost on basis.
First technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: but a kind of buoyant foundation of transportation by driving comprises being anchor system, and described is that anchor system comprises anchor body and the anchor chain that is connected on the anchor body; Be connected with three-back-shaped hollow airtight steel basis buoyancy tank on the described anchor chain, 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 passes described anchor chain path and is connected with described anchor chain fastening devices.
Described anchor body is suction anchor or dull and stereotyped anchor.
Second technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: but the job practices of the buoyant foundation of above-mentioned transportation by driving may further comprise the 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 three-back-shaped hollow airtight steel buoyancy tank of detachable combined type, and the auxiliary buoyancy tank of described construction is provided with anchor chain path and anchor chain fastening devices;
In second step, the anchor body puts in place by the position construction of design in advance, connects anchor chain on the anchor body, connects the buoy ball on anchor chain;
The 3rd goes on foot, and 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 the buoyancy tank all to be communicated with anchor chain path and described construction on the buoyancy tank of described buoyant foundation; According to buoy ball indicating positions that the auxiliary buoyancy tank transportation by driving of tube connector, buoyant foundation buoyancy tank and construction that fuses is in place, anchor chain is passed anchor chain path on the auxiliary buoyancy tank of the structural anchor chain path in buoyant foundation, tube connector and construction from bottom to up successively, and be connected on the anchor chain fastening devices on the auxiliary buoyancy tank of construction;
The 4th step, by the mistake water lines water filling in the buoyancy tank of buoyant foundation on the basic buoyancy tank, making it lose part buoyancy moves down, when its complete entry, the auxiliary buoyancy tank of the construction that floats on the surface provides integrally-built buoyancy, stop water filling, equipment is installed on the mounting platform of buoyant foundation buoyancy tank;
The 5th step, anchor chain is removed from the auxiliary buoyancy tank of constructing, be connected on the anchor chain fastening devices on the buoyancy tank of buoyant foundation, the water body in the buoyancy tank of buoyant foundation to be extracted out by the mistake water lines on it, anchor chain is tightened; To construct and assist buoyancy tank and tube connector to remove, the buoyant foundation construction finishes.
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 the collaborative construction operation by auxiliary buoyancy tank of construction and tube connector, the buoyancy that the method adjustment basis buoyancy tank of employing water filling and draining in basic buoyancy tank is subjected to, can simply and easily basic buoyancy tank be positioned in the water, not only made things convenient for the installation of equipment, and made the buoyant foundation avoid being subjected to the influence of stormy waves waterborne; The present invention constructs simply, fast, required construction equipment seldom need not special buoyant foundation construction equipment, also need not integral prefabricated, whole Transporting, construction cost is low, comprehensive cost is low.
Description of drawings
Fig. 1 is for implementing the schematic diagram in second step of job practices of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is for implementing the schematic diagram in the 3rd step of job practices of the present invention;
Fig. 4 is the vertical view of buoyant foundation buoyancy tank in the job practices of the present invention;
Fig. 5 is the vertical view of the auxiliary buoyancy tank of construction in the job practices of the present invention;
Fig. 6 is for implementing the schematic diagram in the 4th step of job practices of the present invention;
Fig. 7 is the enforcement schematic diagram in the 5th step of job practices of the present invention, but that is the structural representation of the buoyant foundation of the present invention's transportation by driving.
Among the figure: 1, suction anchor, 2, anchor chain, 3, the buoy ball, 4, tube connector, 5, the buoyant foundation buoyancy tank, 6, the auxiliary buoyancy tank of construction, 7, the anchor chain path, 8, the anchor chain path, 9, cross, 10, the blower fan tower barrel mounting platform, 11, blower fan, 12, the anchor chain fastening devices.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 7, but a kind of offshore wind turbine buoyant foundation of 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 buoyancy tank wide 50m of 5 long 50m, 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 tube mounting platforms 10, the diameter of mounting platform 10 is 8m, and cross support 9 employing cross sections are that the square steel of 50cm * 50cm is welded.Four bights are respectively equipped with the anchor chain path 7 of diameter 15cm on the buoyancy tank of basis, also are provided with anchor chain fastening devices 12 and mistake water lines (not shown) anchor chain 2 on the basic buoyancy tank and pass anchor chain path 7 and be connected with anchor chain fastening devices 12.
Above-mentioned suction anchor also can replace with dull and stereotyped anchor, and material is a steel; Above-mentioned anchor chain is generally the steel anchor chain; Above-mentioned basic buoyancy tank 5 is generally steel, and is 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 used for offshore wind turbine 11, can also be used for other marine equipment, for example: marine anemometer tower etc.
But the job practices of the buoyant foundation of above-mentioned transportation by driving may further comprise the 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 three-back-shaped hollow airtight steel buoyancy tank of detachable combined type, the auxiliary removable at least two parts that are divided into of buoyancy tank 6 of construction; So that the dismounting after the 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 buoyancy tank wide 50m of 6 long 50m 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.
In second step, the anchor body puts in place by the position construction of design in advance, connects anchor chain 2 on the anchor body, connects buoy ball 3 on anchor chain 2;
The 3rd step, adopt tube connector 4 that buoyant foundation buoyancy tank 5 and the auxiliary buoyancy tank 6 of construction are linked together by removably connecting, and make described tube connector 4 assist the anchor chain path 8 on the buoyancy tank all to be communicated with anchor chain path 7 and described construction on the buoyancy tank of described buoyant foundation, to form the passage of anchor chain; Indicating positions according to buoy ball 3 is in place with auxiliary buoyancy tank 6 transportation by drivings of tube connector 4, buoyant foundation buoyancy tank 5 and construction that fuse, anchor chain 3 is passed anchor chain path 8 on the structural anchor chain path 7 in buoyant foundation, tube connector 4 and the auxiliary buoyancy tank of construction from bottom to up successively, and be connected on 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 the equipment installation.
The 4th step, by the mistake water lines water filling in buoyant foundation buoyancy tank 5 on the basic buoyancy tank, making it lose part buoyancy moves down, when its complete entry, the auxiliary buoyancy tank 6 of the construction that floats on the surface provides integrally-built buoyancy, stops water filling, equipment is installed on the mounting platform 10 of buoyant foundation buoyancy tank, at this moment, the buoyancy of total system is provided by the auxiliary buoyancy tank 6 of construction;
The 5th step, anchor chain 2 is removed from the auxiliary buoyancy tank 6 of constructing, be connected on the anchor chain fastening devices 12 on the buoyant foundation buoyancy tank 5, the water body in the buoyant foundation buoyancy tank 5 to be extracted out by the mistake water lines on it, anchor chain 2 is tightened; To construct and assist buoyancy tank 6 and tube connector 4 to remove, the buoyant foundation construction finishes, and complete equipment installs.
Although in conjunction with 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 only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.

Claims (4)

1.一种可浮运的浮式基础，包括系锚系统，所述系锚系统包括锚体和连接在锚体上的锚链；其特征在于，所述锚链上连接有回字形空心密闭钢质基础浮箱，所述基础浮箱的中央设有安装平台，所述基础浮箱上设有过水管路、锚链通路和锚链固定装置，所述锚链穿过所述锚链通路与所述锚链固定装置连接。1. A floating foundation that can be floated includes a mooring system, and the mooring system includes an anchor body and an anchor chain connected to the anchor body; it is characterized in that a back-shaped hollow airtight Steel foundation buoyant tank, the center of the basic buoyant tank is provided with an installation platform, and the foundation buoyant tank is provided with a water-passing pipeline, an anchor chain passage and an anchor chain fixing device, and the anchor chain passes through the anchor chain passage Connect with the anchor chain fixing device. 2.根据权利要求1所述的可浮运的浮式基础，其特征在于，所述锚体为吸力锚或平板锚。2. The floatable floating foundation according to claim 1, wherein the anchor body is a suction anchor or a flat anchor. 3.施工根据权利要求1所述的可浮运的浮式基础的方法，其特征在于，包括以下步骤：3. The method for construction according to the buoyant floating foundation according to claim 1, is characterized in that, comprising the following steps: 第一步，预制回字形空心密闭钢质基础浮箱、施工辅助浮箱和连接管；所述基础浮箱的中央设有安装平台，所述基础浮箱上设有过水管路、锚链通路和锚链固定装置；所述施工辅助浮箱为可拆分组合式回字形空心密闭钢质浮箱，所述施工辅助浮箱上设有锚链通路和锚链固定装置；The first step is to prefabricate the back-shaped hollow airtight steel foundation pontoon, construction auxiliary pontoons and connecting pipes; the center of the foundation pontoon is equipped with an installation platform, and the foundation pontoon is provided with water pipelines and anchor chain passages and anchor chain fixing device; the construction auxiliary buoyancy tank is a detachable and combined back-shaped hollow airtight steel buoyancy tank, and the construction auxiliary buoyancy tank is provided with an anchor chain passage and an anchor chain fixing device; 第二步，锚体按预先设计的位置施工到位，在锚体上连接锚链，在锚链上连接浮标球；In the second step, the anchor body is constructed according to the pre-designed position, the anchor chain is connected to the anchor body, and the buoy ball is connected to the anchor chain; 第三步，通过可拆卸连接采用连接管将浮式基础浮箱和施工辅助浮箱连接在一起，并使所述连接管与所述浮式基础浮箱上的锚链通路和所述施工辅助浮箱上的锚链通路均连通；按照浮标球指示位置将连成一体的连接管、浮式基础浮箱和施工辅助浮箱浮运就位，将锚链从下至上依次穿过浮式基础结构上的锚链通路、连接管和施工辅助浮箱上的锚链通路，并连接在施工辅助浮箱上的锚链固定装置上；The third step is to connect the floating foundation pontoon and the construction auxiliary pontoon together through a detachable connection using a connecting pipe, and make the connecting pipe connect with the anchor chain passage on the floating foundation pontoon and the construction auxiliary The anchor chain passages on the buoys are all connected; according to the position indicated by the buoy ball, the integrated connecting pipe, floating foundation buoy box and construction auxiliary buoyant tank are floated in place, and the anchor chains are passed through the floating foundation in sequence from bottom to top The anchor chain passage on the structure, the connecting pipe and the anchor chain passage on the construction auxiliary buoyancy tank, and connected to the anchor chain fixing device on the construction auxiliary buoyancy tank; 第四步，通过基础浮箱上的过水管路向浮式基础浮箱内注水，使其失去部分浮力向下移动，当其完全入水，浮在水面上的施工辅助浮箱提供整体结构的浮力，停止注水，将设备安装在浮式基础浮箱的安装平台上；The fourth step is to inject water into the floating foundation buoyancy tank through the water pipeline on the foundation buoyancy tank, so that it loses part of its buoyancy and moves downward. Stop water injection and install the equipment on the installation platform of the floating foundation buoyancy tank; 第五步，将锚链从施工辅助浮箱上解除，连接到浮式基础浮箱上的锚链固定装置上，将浮式基础浮箱内的水体通过其上的过水管路抽出，锚链绷紧；将施工辅助浮箱及连接管拆除，浮式基础施工完毕。The fifth step is to remove the anchor chain from the construction auxiliary buoyancy tank, connect it to the anchor chain fixing device on the floating foundation buoyancy tank, and draw out the water body in the floating foundation buoyancy tank through the water pipeline on it, and the anchor chain Tighten; remove the construction auxiliary buoyancy tank and connecting pipes, and the construction of the floating foundation is completed. 4.根据权利要求3所述的施工方法，其特征在于，所述连接管通过锚栓或自拆卸装置与所述浮式基础浮箱和所述施工辅助浮箱连接。4. The construction method according to claim 3, characterized in that, the connecting pipe is connected with the floating foundation buoyancy tank and the construction auxiliary buoyancy tank through an anchor bolt or a self-detachment device.
CN201110122856.2A 2011-05-12 2011-05-12 Floating foundation and construction method thereof Active CN102277878B (en)

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CN102677694A (en) * 2012-05-30 2012-09-19 天津大学 Offshore wind power submersible foundation structure and complete fan installation construction method thereof
CN102677693A (en) * 2012-05-30 2012-09-19 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
CN102704503A (en) * 2012-05-30 2012-10-03 天津大学 Offshore submerged box type foundation structure and construction method thereof
CN102704506A (en) * 2012-05-30 2012-10-03 天津大学 Offshore submerged foundation structure and construction method thereof
CN104627331A (en) * 2015-01-27 2015-05-20 天津大学 Wind power generation floating 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
CN108248783A (en) * 2018-01-23 2018-07-06 天津大学 A kind of novel offshore wind power submersible buoyant foundation and its construction method
CN108316335A (en) * 2018-01-23 2018-07-24 天津大学 A kind of tension type mooring submersible buoyant foundation and its construction method
CN108407986A (en) * 2018-01-23 2018-08-17 天津大学 It is a kind of can transportation by driving offshore wind farm buoyant foundation and its construction method
CN108407987A (en) * 2018-01-23 2018-08-17 天津大学 A kind of offshore wind farm buoyant foundation of tensioning waterborne and its construction method
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CN102677694A (en) * 2012-05-30 2012-09-19 天津大学 Offshore wind power submersible foundation structure and complete fan installation construction method thereof
CN102677693A (en) * 2012-05-30 2012-09-19 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
CN102704503A (en) * 2012-05-30 2012-10-03 天津大学 Offshore submerged box type foundation structure and construction method thereof
CN102704506A (en) * 2012-05-30 2012-10-03 天津大学 Offshore submerged foundation structure and construction method thereof
CN102677693B (en) * 2012-05-30 2014-06-25 天津大学 Maritime submersible 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
CN104627331A (en) * 2015-01-27 2015-05-20 天津大学 Wind power generation floating 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
CN108407987A (en) * 2018-01-23 2018-08-17 天津大学 A kind of offshore wind farm buoyant foundation of tensioning waterborne and its construction method
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CN112177164A (en) * 2020-11-05 2021-01-05 济南一建集团有限公司 A kind of water prefabricated building and installation method
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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
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