CN201874007U - Offshore single-pile foundation structure - Google Patents
Offshore single-pile foundation structure Download PDFInfo
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- CN201874007U CN201874007U CN2010201534588U CN201020153458U CN201874007U CN 201874007 U CN201874007 U CN 201874007U CN 2010201534588 U CN2010201534588 U CN 2010201534588U CN 201020153458 U CN201020153458 U CN 201020153458U CN 201874007 U CN201874007 U CN 201874007U
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- steel pipe
- pipe pile
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Abstract
The utility model relates to an offshore single-pile foundation structure including a pipe pile, a flange component and an annular platform, wherein the flange component comprises a flange and a flange hub, the flange hub is arranged on the inner wall of the flange, the flange hub is welded on the upper end of the pipe pile, and the upper part of the flange hub which is exposed out of the pipe pile and the flange is used as a striking lug boss; and an annular component is arranged on the wall of the pipe pile, and the annular platform is connected with the annular component through a bolt. The offshore single-pile foundation structure is applicable to shallow water area and middle-deep water area, and has simple and rapid construction, low cost and strong adaptability.
Description
Technical field
The utility model relates to a kind of marine pile foundation type foundation structure and mounting method thereof, particularly about a kind of single pile foundation structure that is applicable to various ocean engineering structures, the especially offshore wind turbine of shallow water area.
Background technology
The ocean engineering of shallow water area especially offshore wind turbine foundation structure Design will be considered the influence of geological structure, offshore distance, sea turn, unrestrained load and ocean current, the ice etc. of sea bed, be divided into gravity, pile foundation type and bucket foundation formula etc. from form of structure, wherein be most widely used with pile foundation type foundation structure.Pile foundation type is divided into jacket-type and concrete bearing platform formula, and the concrete bearing platform formula generally is applied in the bridge pier structure, although cost is low, but because of its marine engineering amount big, cycle is long, can't overcome marine boisterous influence, is not therefore adopted by other offshore engineering structures.Jacket-type is widely used in the offshore engineering structure, be divided into several patterns such as three of only legs, three legs, four legs, it is the steel work prefabricated, the welding of carrying out steel work in land factory is prefabricated, arrive the installation site by barging, water under lifting of general employing crane barge or the slippage uses hydraulic pile hammer that piling bar is driven into the following projected depth of mud face, and connecting duct frame and piling bar at last are in the milk.The jacket-type supporting capacity is higher, and the depth of water scope of application is wider, but cost is very high, and spud leg is many, and the offshore construction cycle is still a bit long, for the compliance of marine harsh weather certain problem is arranged also.
The utility model content
At the problems referred to above, the purpose of this utility model provides that a kind of cost is low, the suitable ocean engineering of the short construction period offshore single-pile base structure installed of offshore wind turbine especially.
For achieving the above object, the utility model is taked following technical scheme: a kind of offshore single-pile base structure is characterized in that: it comprises steel pipe pile and a ring-shaped platform of a flanged member; Described flange component is welded at the mouth of pipe place, upper end of described steel pipe pile, and both finish integral prefabricatedly on land, and an annular construction member also is set on the outer wall of described steel pipe pile, is connected by bolt with ring-shaped platform.Described steel pipe pile is taked necessary anti-corrosion measure, as whole japanning more than the mud face, and the perhaps local method that sacrificial anode is installed that adopts.Described flange component is the flange of a band boss and neck flange, and boss, neck flange and flange three can be shaped in integral cast, carry out machine according to design size.Described flange can be inner flange or outward flange as the connector of superstructure; The card of described flange and the axis normal of described steel pipe pile; Described neck flange is flange component and the butt-welded transition portion of steel pipe pile port, and the general requirements external diameter is consistent with the steel pipe pile internal diameter, sheathed flange on the described neck flange; Described boss is (when being outward flange) or the outside (when for inner flange) in the flange inboard, generally exceeding that part of of flange by neck flange directly serves as, the contact surface of pile monkey and flange component when table top is piling also is simultaneously the transfer surface that transmits hammering energy to steel pipe pile.Described ring-shaped platform comprises operating platform, the cat ladder of going on board, by steelwork components such as ship spare and cable protecting tubes, and each parts is finished prefabricated and application on land by part, and assemble as a wholely, can adopt during assembling to be welded to connect or bolt is connected on the annular construction member.
The utility model is owing to taked above technical scheme, and it has the following advantages: 1, the utility model is compared conventional foundation structure, and main body adopts the single pile structure, will save material greatly; A flange component is welded at mouth of pipe place in the upper end of pile body, and a boss is arranged on the flange component, and boss is a stressed member during piling, has avoided flange impaired.2, cancelled transition structure and grouting connection work, economical with materials has been saved the marine set-up time.3, a ring-shaped platform is set in stake, and is integral prefabricated installation, saved the marine set-up time.4, the utility model single pile foundation structure is suitable for shallow water and Intermediate Water Depth zone, and construction is simple, quick, and expense is lower, and compliance is strong.
Description of drawings
Fig. 1 is the structure sectional view of the utility model pile body;
Fig. 2 is the structure sectional view of flange component;
Fig. 3 is annular steel platform scheme of installation;
Fig. 4 is the schematic diagram that utilizes crane barge piling;
Fig. 5 is the schematic diagram that utilizes crawler crane piling;
Fig. 6 is that pile clamping device opens schematic diagram;
Fig. 7 is that pile clamping device closes up schematic diagram;
Fig. 8 is Fig. 7 pile clamping device side schematic view.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model single pile foundation structure main body is one large diameter (steel pipe pile 1 of 3m～6m) when at sea driving piles, is erect steel pipe pile 1, and the lower end is driven under the mud face, surfaces in the upper end.Weld a flange component 2 at mouth of pipe place, the upper end of steel pipe pile 1.As shown in Figure 2, flange component 2 is made up of a flange 21, a neck flange 22 and a boss 23, and wherein boss 23 can self be formed by neck flange 22.Neck flange 22 is cemented on the annular inner wall of flange 21 in factory, neck flange 22 tops are protruded flange 21 and are just formed boss 23; Perhaps both are integral by as above form solid forging and also can with neck flange 22 and flange 21.
On the part that steel pipe pile 1 surfaces, also an annular construction member 3 radially is set around steel pipe pile 1.Annular construction member 3 can be to be welded on steel pipe pile 1 outer wall, also can with steel pipe pile 1 integral production, annular construction member 3 is used to place cable and equipment.
As shown in Figure 3, a ring-shaped platform 4 independently, comprise operating platform, the cat ladder of going on board, by steelwork components such as ship spare and cable protecting tubes, and each parts finishes prefabricated and application on land by part, and assembles as a whole.Ring-shaped platform 4 adopts and is welded to connect or bolt is connected on the annular construction member 3 then.
The utility model connects into an integral body with steel pipe pile 1 and flange component 2, has structurally saved rolled steel dosage greatly; To guarantee the planeness on flange 21 surfaces during simultaneously because of construction,, make pile driver directly contact, thereby avoided flange 21 to be damaged with boss 23 so neck flange 22 is made as the card that is higher than flange 21.Installation blower fan tower barrel (not shown) on flange 21.
The utility model adopts crane barge piling in the profundal zone, as shown in Figure 4, concrete steps are as follows:
1) barge location: the single pile foundation structure that the utility model provides is made in advance, be transported on the crane barge ship, the crane barge gear is equipped with from rising function and having spud leg, and ship brings to and puts down spud leg after arriving the destination, makes hull expose the sea level;
2) following: lay verticality on one's body at steel pipe pile and detect sign, hang an end suspension centre of steel pipe pile flange with the crane barge main hook, the auxilliary hook block of crane barge is lived the other end of steel pipe pile, after two hooks lift certain altitude, main hook promotes, auxilliary hook is transferred, till whole loads all are added on the main hook, make steel pipe pile vertically extract auxilliary hook block hook in the back, open the pile clamping device 5 on the crane barge ship, handle the crane barge main hook steel pipe pile is inserted pile clamping device, main hook is transferred steel pipe pile is inserted in the mud by deadweight, after handling pile clamping device and holding pile body tightly, extract the main hook suspender, make stake in the process that falls steadily and keep vertical state;
Shown in Fig. 6～8, pile clamping device 5 comprises that an end of 51, two semicircle hoops 51 of two semicircle hoops is articulated in the rotating shaft 52 jointly, can open or closure.The other end at two semicircle hoops 51 has the joint portion respectively, and correspondence offers bolt hole on the joint portion, when two semicircle hoop 51 closures, two semicircle hoops 51 can be locked by bolt 53.Pile clamping device 5 is connected with the retractable driving device of hull by rod member 6.
3) pile sinking: with level gauge monitoring verticality sign, and operating hydraulically operated pile clamping device is adjusted steel pipe pile, vertical fully until pile body, handle the crane barge main hook hydraulic pile hammer of slinging, utilize pile hammer to hit boss 23, the top of boss 23 is directly contacted with hammer, guarantee in the strike process that stake, hammer, pile clamping device three's center line is on same axis from the top of stake, continuous detection of vertical degree in the injection process finds that the timely use in skew back pile clamping device is adjusted;
4) stop hammer: after being driven into the degree of depth that designs under the mud face when stake, stop the hammer lifting.
The utility model uses crawler crane piling in the beach district, as shown in Figure 5, concrete steps are as follows:
1) at first barge is carried out structure of modification and load test: the crawler crane that will satisfy the lifting ability is fixed on the barge deck, and steel or wooden construction bed course are set between crawler crane and barge deck; Under the sea situation of 0.5 meter depth of water, carry out maximum lifting loading test at least, make that hull structural strength is good when loading, have enough is that rises after the unloading;
2) barge location: shallow-draft barge is entering construction area at the incoming tide, in order to guarantee piling quality, by the water level of adjusting lattice the inside, storehouse barge is suitably sat at the end, guarantees himself stability, by winch barge is located after barge casts anchor;
3) following: lay verticality on one's body at steel pipe pile and detect sign; After the ebb, hang an end suspension centre of steel pipe pile flange with the crane barge main hook, the auxilliary hook block of crane barge is lived the other end of steel pipe pile, after two hooks lifted certain altitude, main hook promoted, and auxilliary hook is transferred, till whole loads all are added on the main hook, make steel pipe pile vertically extract auxilliary hook block hook in the back; Open the pile clamping device 4 on the crane barge ship, handle the crane barge main hook steel pipe pile is inserted pile clamping device, main hook is transferred steel pipe pile is inserted in the mud by deadweight, after handling pile clamping device and holding pile body tightly, extracts the main hook suspender, make stake in the process that falls steadily and keep vertical state;
4) pile sinking: when stake drops to mud face place, utilize pile hammer to hit boss 23 from the top of stake, the top of boss 23 is directly contacted with hammer, in the pile driving process, the center line that guarantees stake, hammer, pile clamping device three is on same axis;
5) stop hammer: after being driven into the degree of depth that designs under the mud face when stake, stop the hammer lifting;
6) wait for once more at the incoming tide, utilize the tugboat machine that barge is dragged to next piling place, repeat 2)～5) step.
In the said process, if barge is sat and still can not be guaranteed behind the end enough stablely, need then on the quarter that both sides are provided with fluid pressure type or the stake of mechanical type stability, after barge was in place, stability stake insertion sea-bottom shallow provided stable support.
Claims (6)
1. offshore single-pile base structure, it is characterized in that: it comprises a steel pipe pile, a flange component and a ring-shaped platform, described flange component comprises a flange, a neck flange and a boss, described neck flange is cemented on the inwall of described flange, described neck flange is welded on the described steel pipe pile, make flange card and steel pipe pile axis normal, around described steel pipe pile one annular construction member is set radially, described annular construction member bolt is connected on the described ring-shaped platform.
2. a kind of offshore single-pile base structure as claimed in claim 1 is characterized in that: described steel pipe pile is protected in surface integral body japanning or the local sacrificial anode protection that adopts.
3. a kind of offshore single-pile base structure as claimed in claim 1 is characterized in that: described neck flange and flange are the integral cast moulding.
4. as claim 1 or 2 or 3 described a kind of offshore single-pile base structures, it is characterized in that: described neck flange is welded on the inwall of described steel pipe pile or the outer wall all can.
5. as claim 1 or 2 or 3 described a kind of offshore single-pile base structures, it is characterized in that: described ring-shaped platform comprises operating platform, the cat ladder of going on board, by ship spare and cable protecting tube.
6. a kind of offshore single-pile base structure as claimed in claim 4 is characterized in that: described ring-shaped platform comprises operating platform, the cat ladder of going on board, by ship spare and cable protecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201534588U CN201874007U (en) | 2010-04-02 | 2010-04-02 | Offshore single-pile foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201534588U CN201874007U (en) | 2010-04-02 | 2010-04-02 | Offshore single-pile foundation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874007U true CN201874007U (en) | 2011-06-22 |
Family
ID=44161932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201534588U Expired - Lifetime CN201874007U (en) | 2010-04-02 | 2010-04-02 | Offshore single-pile foundation structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN201874007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244608A (en) * | 2017-07-26 | 2017-10-13 | 合肥新坞岩机械科技有限公司 | A kind of pile, which is hung, takes component fixed pulley |
-
2010
- 2010-04-02 CN CN2010201534588U patent/CN201874007U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244608A (en) * | 2017-07-26 | 2017-10-13 | 合肥新坞岩机械科技有限公司 | A kind of pile, which is hung, takes component fixed pulley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |