CN204676515U - A kind of offshore boosting station adopting High-Rise Pile Cap Foundation - Google Patents
A kind of offshore boosting station adopting High-Rise Pile Cap Foundation Download PDFInfo
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- CN204676515U CN204676515U CN201520165636.1U CN201520165636U CN204676515U CN 204676515 U CN204676515 U CN 204676515U CN 201520165636 U CN201520165636 U CN 201520165636U CN 204676515 U CN204676515 U CN 204676515U
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Abstract
The utility model relates to a kind of offshore boosting station adopting High-Rise Pile Cap Foundation.The purpose of this utility model is to provide a kind of offshore boosting station adopting High-Rise Pile Cap Foundation, can realize the functional requirement of offshore boosting station, ensures the safety of structure, reduces the dependence of high accuracy pile driving equipment and reduce investment outlay.The technical solution of the utility model is: a kind of offshore boosting station adopting High-Rise Pile Cap Foundation, it is characterized in that: described offshore boosting station is made up of one, top or several module, middle part concrete bearing platform and one group, the bottom steel pipe pile squeezing into sea bed bearing stratum, wherein, module is processing and manufacturing by land, water transport is installed to scene, is supported and reserve cable floor between module and concrete bearing platform by structural column; Concrete bearing platform is cast-in-place and its planar dimension is corresponding with the size of upper module; What described steel pipe pile was arranged in centre position is vertical, and the stake being arranged in periphery is all outward-dipping.The utility model is applicable to Oversea wind power generation field.
Description
Technical field
The utility model relates to a kind of offshore boosting station adopting High-Rise Pile Cap Foundation, is applicable to Oversea wind power generation field.
Background technology
Oversea wind power generation is an emerging industry, and after 2007, China starts progressively to develop Oversea wind power generation industry.In order to offshore wind generating electricity can be delivered to land, offshore boosting station must be built.
Offshore boosting station is marine wind electric field boosting, distribution and control centre, the various electric fixturess such as main transformer, high-low voltage electric power distribution cabinet, GIS, communication relay protection devices are generally furnished with in offshore boosting station, after all offshore wind farm units generate electricity and can collect by offshore boosting station, boosted by main transformer, then delivered to by high-pressure undersea cable land.
Offshore boosting station can be divided into superstructure and substructure, and superstructure is generally transported to in-site installation after processing and fabricating by land, and superstructure can be divided into monolithic and modular two kinds.Substructure Main Function supports upper module, and the general jacket that adopts is basic.Jacket basis is full steel structure pattern, and be made up of the steel pipe pile in jacket and jacket, jacket is processing and manufacturing by land, is transported to marine positioning, lays, after leveling, in jacket, inserts steel pipe pile.Jacket structure is stressed clearly, compliance is stronger, but jacket basis has piling required precision high (general jacket basis needs within 5cm the required precision of steel pipe pile), invests large shortcoming, need to seek a kind of dependence to high accuracy pile driving equipment little, invest little offshore boosting station pattern.
Summary of the invention
The technical problems to be solved in the utility model is: for above-mentioned Problems existing, a kind of offshore boosting station adopting High-Rise Pile Cap Foundation is provided, the functional requirement of offshore boosting station can be realized, ensure the safety of structure, reduce the dependence of high accuracy pile driving equipment and reduce investment outlay.
The technical scheme that the utility model adopts is: a kind of offshore boosting station adopting High-Rise Pile Cap Foundation, it is characterized in that: described offshore boosting station is made up of one, top or several module, middle part concrete bearing platform and one group, the bottom steel pipe pile squeezing into sea bed bearing stratum, wherein, module is processing and manufacturing by land, water transport is installed to scene, is supported and reserve cable floor between module and concrete bearing platform by structural column; Concrete bearing platform is cast-in-place and its planar dimension is corresponding with the size of upper module; What described steel pipe pile was arranged in centre position is vertical, and the stake being arranged in periphery is all outward-dipping.
The upper surface of described concrete bearing platform, reserve rim of a cup corresponding to the position of syndeton post, rim of a cup is wide at the top and narrow at the bottom trapezoidal, and the degree of depth of rim of a cup and the insertion depth of structural column adapt, by pea gravel concreten cement-grouting consolidation between rim of a cup and structural column.
Described structural column is steel pipe column, and the outer surface of structural column is covered with the shear connector of welding, and flange at the bottom of the bottom welding of structural column, structural column has grout hole.
The beneficial effects of the utility model are: 1, the utility model is provided with cable floor, make cable can pass in and out herein, turn, because this reducing the setting of cable floor in module, the weight saving module and investment; 2, the utility model adopts High-Rise Pile Cap Foundation, simplify the required precision to piling, because concrete bearing platform must be cast-in-place, thus the position well having adapted to steel pipe pile is arranged, and within the required precision of steel pipe pile can be loosened to 30cm, general pile driving barge need not install accurate location facilities additional can reach this precision, saves the expense of piling; 3, the utility model adopts many steel pipe piles, and wherein arranging of taper pile can make basis better bear the horizontal force that upper module transmits, avoid bending excessive and stress that is that cause excessive, be out of shape excessive; 4, in the utility model the planar dimension of concrete bearing platform and the size of module corresponding, ensure that concrete structural safety outside rim of a cup, and choose outside cushion cap surrounding formed aisle, comparatively for convenience of and need expense less; And the traffic between module and module can be completed by the aisle in cushion cap face, save and the operation of walkway board and the engineering quantity of upper module and investment are set in module; 5, in the utility model, the thickness of mixed earth cushion cap arranges and ensure that the structural strength that cushion cap is overall, reserved rim of a cup post-grouting mode is adopted to be connected between this cushion cap with upper module post, its mode simple and fast, also comparatively large to the permissible value of construction error, the allowable error when Assurance of Size of rim of a cup pillar inserts and the structural strength after inserting; 6, the vertical force that the end flange being welded on the bottom of structural column in the utility model transmits for bearing post, arranges concrete compression enlarged areas after end flange, ensure that concrete not by secondary buckling, also ensure that structural column is not easily pulled out when tension.
Accompanying drawing explanation
Fig. 1 is the integral arrangement figure of the present embodiment one.
Fig. 2 is the layout plan of concrete bearing platform and steel pipe pile in the present embodiment one.
Fig. 3 is the layout plan of module and concrete bearing platform in the present embodiment one.
Fig. 4 is the integral arrangement figure of the present embodiment two.
Fig. 5 is the layout plan of concrete bearing platform and steel pipe pile in the present embodiment two.
Fig. 6 is the layout plan of module and concrete bearing platform in the present embodiment two.
Fig. 7 is the cross section view that in the present embodiment, structural column is connected with rim of a cup.
Fig. 8 is that in the present embodiment, structural column is connected layout plan with rim of a cup.
Detailed description of the invention
Offshore boosting station is marine wind electric field boosting, distribution and control centre, the various electric fixturess such as main transformer, high-low voltage electric power distribution cabinet, GIS, communication relay protection devices are generally furnished with in offshore boosting station, after all offshore wind farm units generate electricity and can collect by offshore boosting station, boosted by main transformer, then delivered to by high-pressure undersea cable land; Offshore boosting station can be divided into superstructure and substructure, and superstructure is generally transported to in-site installation after processing and fabricating by land, and superstructure can be divided into monolithic and modular two kinds.
Embodiment one:
As shown in Figure 1, Figure 2, Figure 3 shows, the present embodiment one is the offshore boosting station of a 200MW scale, and superstructure is modular, arranges three modules 1 altogether, and the planar dimension of each module is 10m × 22m, and the interval 3m between each module, module gross weight is about 2100t.The manufacture of module utilizes published technology (ZL201020657006.3, module-assembled offshore booster station structure).
The offshore boosting station of embodiment one is made up of three modules 1, mixed earth cushion cap 2, steel pipe pile 3, and module 1 bottom surface and mixed earth cushion cap 2 above between clear height be 1.5m, this space is used for arranging cable floor 4.
The superstructure of offshore boosting station adopts modular organization, completes the processing and manufacturing of three modules 1 by land, is transported to cable, pipeline again between link block 1 after in-site installation one by one, is formed overallly also to debug; Below module 1 rule be furnished with the structural column 1-1 (diameter of structural column is determined according to the stress condition of module in superstructure) that 18 diameters are 0.6m, this structural column is for connecting High-Rise Pile Cap Foundation structure.
The substructure of offshore boosting station adopts High-Rise Pile Cap Foundation structure, and High-Rise Pile Cap Foundation structure is made up of concrete bearing platform 2 and steel pipe pile 3.Be arranged on the concrete bearing platform 2 on steel pipe pile 3 top for cast in situs, its planar dimension is corresponding with the size of three modules 1 on top and flat shape is quadrangle, the planar dimension of this mixed earth cushion cap be 25m × 39m, thick be 3.5m; The upper surface of concrete bearing platform 2 is reserved with the rim of a cup 2-1 corresponding with structural column 1-1 and rim of a cup is trapezoidal shape, upper wide 1.2m, bottom width 1.0m, dark 1.05m; Concrete bearing platform 2 arranged beneath has 12 diameters to be the steel pipe pile 3 (diameter of steel pipe pile 3 is determined according to module load condition in geological conditions, superstructure etc.) of 1.2m, the steel pipe pile 3 in centre position is vertically arranged, the steel pipe pile 3 of periphery is all with the outward-dipping layout of the slope of 6:1, and the degree of depth that steel pipe pile 3 inserts concrete bearing platform 2 is 2 times of module 1 diameter, i.e. 1.2m.Wherein, the distance on concrete bearing platform 2 outer back gauge structural column 1-1 limit is 1.5m, choose 1.5m outside cushion cap surrounding and form aisle, after counting the distance 1.5m on module 1 limit and concrete bearing platform 2 limit, the wide 3m in aisle, because aisle is arranged around cushion cap surrounding, count the general layout, cushion cap face behind aisle and be of a size of 28m × 42m.
Embodiment two:
As shown in Fig. 4, Fig. 5, Fig. 6, the present embodiment two is the offshore boosting station of a 200MW scale, and superstructure is monolithic, and its planar dimension 35m × 35m, superstructure gross weight is about 2100t.The manufacture of superstructure utilizes published technology (ZL 201020656982.7, Integral type offshore booster station structure).
In embodiment two, the superstructure of offshore boosting station adopts monolithic construction, and namely adopt a module 1, complete the processing and manufacturing of whole module 1 by land, whole Transporting is to in-site installation.Module 1 is provided with the structural column 1-1 with highrise pile cap anatomical connectivity, and part-structure post is set to diagonal brace; Clear height between bottom module 1 and above concrete bearing platform 2 is 5.0m, and this space is used for arranging cable floor 4, and the diameter of structural column 1-1 is determined according to superstructure stress condition, and this example is 1.6m.
The substructure of offshore boosting station adopts High-Rise Pile Cap Foundation structure, and High-Rise Pile Cap Foundation structure is made up of concrete bearing platform 2 and steel pipe pile 3; Concrete bearing platform is furnished with 9 steel pipe piles 3 for 2 times, and the steel pipe pile in centre position is vertical, and the stake of periphery is all tilted to stud, and slope is 6:1; The diameter of steel pipe pile 3 is determined according to geological conditions, superstructure loading condition etc., and this example is 2.0m; Cast-in-place plane is foursquare concrete bearing platform 2, and this cushion cap planar dimension is corresponding with the size of module 1, and the distance on outer back gauge structural column 1-1 limit of cushion cap is 1.4 times of structural column diameters, i.e. 2.2m; Rim of a cup 2-1 is reserved in place corresponding with structural column 1-1 on concrete bearing platform 2, and the degree of depth that structural column 1-1 inserts concrete bearing platform 2 rim of a cup 2-1 is 1.25 times of structural column diameters, i.e. 2.0m; The planar dimension of rim of a cup 2-1 is slightly large compared with end flange 1-2 external diameter of post, and this rim of a cup adopts wide at the top and narrow at the bottom trapezoidal, upper wide for 2.4m, bottom be 2.0m; Insertion concrete bearing platform 2 degree of depth of steel pipe pile 3 is the steel pipe pile diameter of 1 times, i.e. 2m; Concrete bearing platform 2 thickness is 6m.
As shown in Figure 7, Figure 8, in embodiment one, embodiment two, concrete bearing platform 2 is connected with adopting the mode of grouting between structural column 1-1.Structural column 1-1 is steel pipe column, arranges end flange 1-2 in the bottom of structural column, and this end flange is the steel plate of an annular, is welded on the bottom of structural column 1-1 reliably; External surface within the scope of the grouting of structural column 1-1 arranges multiple shear connector 1-3, shear connector 1-3 is along the whole circumference of the external surface of structural column 1-1, single shear connector is placed in vertical, and this shear connector is formed by short round steel or short square steel bar, the outside that is welded on structural column 1-1; External surface beyond the grouting scope of structural column 1-1 is provided with grout hole 1-4.After installation module 1, be in the milk pea gravel concreten 2-2 between the reserved rim of a cup 2-1 and structural column 1-1 of cushion cap concrete 2, in structural column 1-1, and perfusion scope is to concordant with cushion cap face.
In the present embodiment, the module 1 of offshore boosting station superstructure must complete processing and manufacturing by land, and is transported to in-site installation, and then cable, the pipeline between link block, finally forms overall post debugging.Space between module 1 and mixed earth cushion cap 2 is used for arranging cable floor 4, and the turnover cable of whole offshore boosting station can pass in and out herein, turn, and does not therefore need to arrange cable floor in module 1, reduces the weight of module and reduces investment outlay, concrete bearing platform is furnished with many steel pipe piles 32 times, and the steel pipe pile 3 that it is in tilted layout can make basis better bear the horizontal force that module 1 transmits, avoid steel pipe pile 3 bending excessive and stress that is that cause excessive, be out of shape excessive etc., the planar dimension of cast-in-place concrete bearing platform 2 is corresponding with the size of module 1, the planar dimension of this cushion cap can ensure concrete structural safety outside rim of a cup 2-1, choose after forming aisle outside cushion cap surrounding, module in superstructure and the traffic between module can be completed by the aisle in cushion cap face, the degree of depth of the insertion concrete bearing platform 2 of steel pipe pile 3 is not less than this diameter, the degree of depth of the insertion concrete bearing platform 2 of structural column 1-1 is not less than the diameter of this post, steel pipe pile 3, the insertion depth of structural column 1-1 can ensure its reliability connected, and cushion cap thickness is not less than steel pipe pile 3, the summation of structural column 1-1 insertion depth, cushion cap thickness ensure that the structural strength that cushion cap is overall, the rim of a cup 2-1 that place corresponding with structural column 1-1 on concrete bearing platform 2 is reserved, the degree of depth of rim of a cup is corresponding with the insertion depth of structural column, the planar dimension of rim of a cup is slightly large compared with the end flange outer diameter of post, the vertical force that the end flange 1-2 being welded on the bottom of structural column 1-1 reliably transmits for bearing post, concrete compression enlarged areas after end flange is set, ensure that concrete is not by secondary buckling, arranges end flange and also ensures that structural column is not easily pulled out when tension, the horizontal force that the multiple shear connectors 1-3 being arranged on the external surface of structural column 1-1 transmit for bearing structural column, and horizontal force is passed to the grouted-aggregate concrete of surrounding, the grout hole 1-4 that structural column 1-1 shaft is provided with is for facilitating the grouting in structural column shaft.
Claims (3)
1. one kind adopts the offshore boosting station of High-Rise Pile Cap Foundation, it is characterized in that: the steel pipe pile (3) that described offshore boosting station squeezes into sea bed bearing stratum by one, top or several module (1), middle part concrete bearing platform (2) and one group, bottom forms, wherein, module (1) processing and manufacturing by land, water transport is installed to scene, is supported and reserve cable floor (4) between module (1) and concrete bearing platform (2) by structural column (1-1); Concrete bearing platform (2) is for cast-in-place and its planar dimension is corresponding with the size of upper module (1); What described steel pipe pile (3) was arranged in centre position is vertical, and the stake being arranged in periphery is all outward-dipping.
2. the offshore boosting station of High-Rise Pile Cap Foundation according to claim 1, it is characterized in that: the upper surface of described concrete bearing platform (2), reserve rim of a cup (2-1) corresponding to the position of syndeton post (1-1), rim of a cup is wide at the top and narrow at the bottom trapezoidal, the degree of depth of rim of a cup and the insertion depth of structural column adapt, by pea gravel concreten (2-2) cement-grouting consolidation between rim of a cup and structural column.
3. the offshore boosting station of High-Rise Pile Cap Foundation according to claim 1 and 2, it is characterized in that: described structural column (1-1) is steel pipe column, the outer surface of structural column is covered with the shear connector (1-3) of welding, flange (1-2) at the bottom of the bottom welding of structural column, structural column has grout hole (1-4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520165636.1U CN204676515U (en) | 2015-03-23 | 2015-03-23 | A kind of offshore boosting station adopting High-Rise Pile Cap Foundation |
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| CN201520165636.1U CN204676515U (en) | 2015-03-23 | 2015-03-23 | A kind of offshore boosting station adopting High-Rise Pile Cap Foundation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038380A (en) * | 2018-07-26 | 2018-12-18 | 华电重工股份有限公司 | A kind of offshore boosting station |
| CN114059572A (en) * | 2020-08-04 | 2022-02-18 | 中国电建集团华东勘测设计研究院有限公司 | Split type high-pile bearing platform foundation for large offshore electrical platform and establishing method |
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2015
- 2015-03-23 CN CN201520165636.1U patent/CN204676515U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038380A (en) * | 2018-07-26 | 2018-12-18 | 华电重工股份有限公司 | A kind of offshore boosting station |
| CN114059572A (en) * | 2020-08-04 | 2022-02-18 | 中国电建集团华东勘测设计研究院有限公司 | Split type high-pile bearing platform foundation for large offshore electrical platform and establishing method |
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