CN102704475A - Moving pile shoe of self-elevating maritime work platform - Google Patents
Moving pile shoe of self-elevating maritime work platform Download PDFInfo
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- CN102704475A CN102704475A CN2012102304746A CN201210230474A CN102704475A CN 102704475 A CN102704475 A CN 102704475A CN 2012102304746 A CN2012102304746 A CN 2012102304746A CN 201210230474 A CN201210230474 A CN 201210230474A CN 102704475 A CN102704475 A CN 102704475A
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Abstract
A moving pile shoe of a self-elevating maritime work platform is composed of an upper shoe body, a lower shoe body, a lug seat, a large shoe plate, a long shaft, a small shoe plate, a short shaft and a blocking bolt. During pile inserting, the large shoe plate turns outwards along the long shaft under effects of press head pressure and seabed resistance, the small shoe plate turns outwards along the short shaft, and the supporting area of the pile shoe is enlarged. During pile pulling, the small shoe plate firstly turns inwards along the short shaft, then the large shoe plate turns inwards along the long shaft, and the contact area of the pile shoe and seabed mud is reduced. The moving pile shoe of the self-elevating maritime work platform has the advantages of reducing pile pulling force and increasing stability of the maritime work platform when the maritime work platform falls into water.
Description
Technical field:
The present invention relates to self lift type ocean engineering platform, be specifically related to the shoe of self lift type ocean engineering platform.
Background technology
Self lift type ocean engineering platform is lifted to platform more than the sea level through spud leg; Avoid the influence of oceanic winds in the operation process, wave, stream to platform; In order to increase the contact area of spud leg and sea bed, the big shoe of sectional area ratio spud leg sectional area is set below spud leg generally.The maritime platform own wt is generally all bigger; Spud leg is under the pressure of platform up to one's neck in the sea bed behind the pitching pile; Silt is piled up above shoe; During pile pulling because of the shoe sectional area much larger than the spud leg sectional area, therefore need bigger pile pulling power, the stability to platform when platform falls into water has a negative impact.
Summary of the invention:
The objective of the invention is to provide a kind of activity shoe, can increase the Area of bearing of spud leg, guarantee the stability of pitching pile, reduce a kind of self lift type maritime platform activity shoe of pile pulling power.
The object of the invention is realized through following technical scheme: a kind of self lift type maritime platform activity shoe; Comprise boots body, following boots body, ear seat, big boots plate, major axis, little boots plate, minor axis and obstruction bolt; The upper end of last boots body is connected with spud leg through ball-joint, and last boots body below links to each other with following boots body, and the said pressure head of going up the boots body passes down the middle square hole of boots body; Two blocks of big boots plates are arranged in down the left and right sides of boots body; Big boots plate links to each other with the ear seat of following boots body through major axis, and two blocks of little boots plates are arranged in down the front and back side of boots body, and each little boots plate links to each other with the ear seat of following boots body through minor axis; Stop up bolt and link to each other through being threaded with big boots plate, little boots plate, the gradient on shelves limit is identical with big boots plate outside gradient about following boots body; The gradient on following boots body front and back crosspiece limit is identical with little boots plate outside gradient; The gradient of the frustum front and back sides of pressure head below is identical with the inboard gradient of little boots plate, and the gradient of the frustum left and right side of pressure head below is identical with the inboard gradient of big boots plate; Big boots plate outwards overturns around major axis during pitching pile, and little boots plate outwards overturns around minor axis; Fit with the shelves limit in big boots plate and inclined-plane, the little boots plate outside; Fit in the conical surface of pressure head and big boots plate, the inboard inclined-plane of little boots plate, the last rib of big boots plate is arranged on the axis hole inboard of big boots plate, and the following rib of big boots plate is arranged on the axis hole outside of big boots plate; Rib is arranged on the outside of little boots plate on the little boots plate of little boots plate, and rib is arranged on the inboard of little boots plate under the little boots plate of little boots plate; During pitching pile when big boots plate, little boots plate when outwards upset puts in place; Little boots plate lower gear limit is pushed down on the big boots plate in the axis hole outside limit of performing; Simultaneously big boots plate lower gear limit is pushed down on the inboard little boots plate of the axis hole limit of performing, and through the laminating each other of big boots plate, little boots plate shelves limit, the restriction of boots body shelves limit and pressure head down, makes big boots plate, little boots plate form a stiffener plate; During pile pulling big boots plate around pitching pile inwardly overturn, little boots plate inwardly overturns around minor axis; And the upset earlier of little boots plate is inwardly packed up, and big subsequently boots plate inwardly upset is packed up, and the maximum secting area of the shoe after big boots plate and little boots plate are packed up is less than Area of bearing.
The sectional area of boots body, following boots body is less than big boots plate, little boots plate baseplane area sum in the activity shoe of the present invention; Large and small boots plate inwardly overturns and packs up during pile pulling; Sectional area that whole shoe is moved in silt and upper and lower boots body section are long-pending approaching, compare with fixed shoe, under equal Area of bearing condition; Pile pulling power significantly reduces, thereby has improved the drowning stability of platform.
Description of drawings
Fig. 1 activity shoe pitching pile state front view
Fig. 2 activity shoe A-A sectional view
Fig. 3 activity shoe pile pulling state front view
The big boots plate of Fig. 4 front view
The big boots plate of Fig. 5 B-B sectional view
The big boots plate of Fig. 6 vertical view
The little boots plate of Fig. 7 front view
The little boots plate of Fig. 8 C-C sectional view
The little boots plate of Fig. 9 vertical view
Label among the figure: 1-spud leg 2-ball-joint 3-goes up under the boots body 4-the little boots plate of boots body 5-ear seat 6-shelves limit 7-big boots plate 8-major axis 9-10-minor axis 11-pressure head 12-and stops up the big boots plate of the bolt 13-little boots plate of the little boots plate of the big boots plate of the limit 14-lower gear limit 15-lower gear limit 16-limit of performing of performing.
The specific embodiment
In order to deepen to understanding of the present invention, will combine embodiment and accompanying drawing that the present invention is made further detailed description below, this embodiment only is used to explain the present invention, does not constitute the qualification to protection domain of the present invention.
Be depicted as a kind of a kind of specific embodiment of self lift type maritime platform activity shoe like Fig. 1-9: comprise boots body 3, following boots body 4, ear seat 5, big boots plate 7, major axis 8, little boots plate 9, minor axis 10 and stop up bolt 12; The upper end of last boots body 3 is connected with spud leg 1 through ball-joint; Last boots body 3 belows link to each other with following boots body 4, and the pressure head of going up boots body 3 passes down the square hole of boots body 4 centres, and two blocks of big boots plates 7 are arranged in down the left and right sides of boots body 4; Big boots plate 7 links to each other with the ear seat 5 of following boots body 4 through major axis 8; Two blocks of little boots plates 9 are arranged in down the front and back side of boots body 4, and each little boots plate 9 links to each other with the ear seat 5 of following boots body 4 through minor axis 10, and obstruction bolt 12 links to each other through being threaded with big boots plate 7, little boots plate 9; Following boots body, the gradient on about 4 grades of limits 6 is identical with big boots plate 7 outside gradients; The gradient on following boots body 4 front and back crosspiece limits is identical with little boots plate 9 outside gradients; The gradient of the frustum front and back sides of pressure head 11 belows is identical with little boots plate 9 inboard gradients, and the gradient of the frustum left and right side of pressure head 11 belows is identical with big boots plate 7 inboard gradients; Big boots plate 7 outwards overturns around major axis 8 during pitching pile, and little boots plate 9 outwards overturns around minor axis 10; Big boots plate 7 is fitted with inclined-plane, little boots plate 9 outside and shelves limit; The conical surface of pressure head 11 is fitted with big boots plate 7, little boots plate 9 inboard inclined-planes, and big boots plate, 7 last rib 13 are arranged on the axis hole inboard of big boots plate 7, and the following rib 14 of big boots plate 7 is arranged on the axis hole outside of big boots plate 7; The last rib 16 of little boots plate 9 is arranged on the outside of little boots plate 9, and the following rib 15 of little boots plate 9 is arranged on the inboard of little boots plate 9; During pitching pile when big boots plate 7, little boots plate 9 when outwards upset puts in place; Little boots plate lower gear limit 15 is pushed down on the big boots plate in the axis hole outside limit 23 of performing; Simultaneously big boots plate lower gear limit 14 is pushed down on the inboard little boots plate of the axis hole limit 16 of performing; Through the laminating each other of big boots plate 7,9 grades of limits of little boots plate, the restriction of 7 grades of limits of boots body and pressure head 11 down; Make big boots plate 7, little boots plate 9 form a stiffener plate, big boots plate 7 pitching piles inwardly overturn during pile pulling, little boots plate 9 inwardly overturn around minor axis 10, and little boots plate 9 are overturn earlier inwardly pack up; Big subsequently boots plate 9 inwardly upset is packed up, and the maximum secting area of the shoe after big boots plate 7 is packed up with little boots plate 9 is less than Area of bearing.
In the present embodiment, last boots body 3, boots body 4, pressure head 11 are square structure down; Big boots plate 7 is two with little boots plate 9 quantity, 9 horizontal sections of big boots plate 7 and little boots plate, is triangle perpendicular to the vertical cross-section shape of axis hole; Shelves limit gradient and boots plate 7 greatly around the following boots body 4, little boots plate 9 axis hole outside vertical are identical in the vertical cross-section gradient of axis hole; The frustum gradient of pressure head 11 belows and big boots plate, little boots plate 9 axis hole inboards are identical perpendicular to the gradient in axis hole cross section.
Following steps are carried out in self lift type maritime platform activity shoe of the present invention when pitching pile:
1) spud leg 1 stretches into seawater with movable shoe and moves downward during pitching pile; When the big boots plate 7 of movable shoe, little boots plate 9 contact sea beds; Receive the big boots plate 7 of sea bed resistance around major axis 8 outwards overturn, little boots plate 9 outwards overturns around minor axis 10, go up boots body 3 simultaneously and continue to move downward with spud leg;
2) down boots body 4 is because of receiving sea bed drag effect movement velocity less than last boots body 3, and the pressure head 11 of last boots body 3 belows moves downward with boots plate 7, little boots plate 9 greatly and contacts, and promote big boots plate 7,9 continuation of little boots plate are overturn;
3) instantly during the plane contact of the plane of boots body 4 tops and last boots body 3 belows; Big boots plate 7, inclined-plane, little boots plate 9 outside contact on the inclined-plane on shelves limit 6 with following boots body 4 all around; Limit the further upset of big boots plate 7, little boots plate 9; Go up simultaneously four inclined-planes of the pressure head 11 of boots body 3 belows and fit with big boots plate 7, little boots plate 9 inboard inclined-planes respectively, limit the inside upset of big boots plate 7, little boots plate 9;
4) when big boots plate 7, little boots plate 9 when outwards upset puts (promptly contacting with grade limit 6 of following boots body 4) in place; The lower gear limit 15 in the little boots plate 9 axis holes outside is pushed down on the limit 13 of performing in the big boots plate 7 axis holes outside, and the limit of performing that simultaneously little boots plate 9 axis holes are inboard presses 16 to live the inboard lower gear limit 14 of big boots plate 7 axis holes; The laminating each other of shelves limit through big boots plate 7, little boots plate 9, the restriction of 4 grades of limits 6 of boots body and pressure head 11 down make two blocks of big boots plates 7, two blocks of little boots plates 9 form a stiffener plate;
5) support force of sea bed passes to spud leg 1 through following mode:
51) sea bed acts on the support force on the big boots plate 7, and a part passes to down boots body 4 through major axis 8, following 4 grades of limits 6 of boots body, and passes to boots body 3 by the plane of following boots body 4 tops, and last boots body 3 passes to spud leg 1 through ball-joint 2 with support force;
52) sea bed acts on the support force on the little boots plate 9, and a part passes to down boots body 4 through minor axis 10, following 4 grades of limits 6 of boots body, and passes to boots body 3 by the plane of following boots body 4 tops, and last boots body 3 passes to spud leg 1 through ball-joint 2 with support force;
53) sea bed acts on another part support force on big boots plate 7, the little boots plate 9, is directly passed to boots body 3 through pressure head 11, and passes to spud leg 1 through ball-joint 2;
6) if the active force that the active force that receives on a certain block of boots plate receives greater than other boots plates; Then pass to two blocks of boots plates that are adjacent through the perform effect on limit of boots plate; Thereby make the force balance of bearing on each piece boots plate; Stressed like the big boots plate 7 in left side among Fig. 2 greater than little boots plate 9; Then big boots plate 7 is through lower gear limit 15, the lower gear limit 14 of the limit 13 of performing-little boots plate 9---and the limit 16 of performing of little boots plate passes to two blocks of little boots plates 9 of upper and lower among Fig. 2 with power, and little boots plate 9 further passes to power through the shelves limit the big boots plate 7 on right side.
Following steps are carried out in a kind of self lift type maritime platform of the present invention activity shoe when pile pulling:
1) go up boots body 2 during pile pulling and move upward with spud leg 1, following boots body 4 keeps motionless with big boots plate 7, little boots plate 9 because of deadweight, and pressure head 11 leaves big boots plate 7 and little boots plate 9;
2) boots body 4 moves upward under the step of pressure head 11 tops drives when the step surface above the square holes contacts in the middle of following boots body 4;
3) big boots plate 7, little boots plate 9 are moving upward under 4 drives of boots body down; Because of the weight of the weekly Outboard Sections of big boots plate 7 and little boots plate 9 greater than the inboard weight of axis hole, the inwardly upset under silt drag effect above deadweight and big boots plate 7, the little boots plate 9 of big boots plate 7, little boots plate 9;
4) because the effect on big boots plate 7 and shelves limit, the interior outside of little boots plate 9 axis holes; The upset earlier of little boots plate 9 is inwardly packed up, and big subsequently boots plate 7 inwardly upset is packed up, and the little boots plate 9 after packing up is positioned at boots body below down fully; Big boots plate 7 has only sub-fraction to stretch out in following boots body 4 outsides; As shown in Figure 3, so pile pulling power effectively reduces, and guaranteed the drowning stability of platform.
The quantity and the configuration mode of the cross sectional shape of boots body 3, following boots body 4, pressure head 11, big boots plate 7, little boots plate 9 can be done corresponding change according to the shape of spud leg in the activity shoe of the present invention; Under equal Area of bearing condition; Pile pulling power significantly reduces, thereby has improved the drowning stability of platform.
Claims (5)
1. self lift type maritime platform activity shoe; Comprise boots body (3), following boots body (4), ear seat (5), big boots plate (7), major axis (8), little boots plate (9), minor axis (10) and stop up bolt (12); It is characterized in that: said upper end of going up boots body (3) is connected with spud leg (1) through ball-joint; Said boots body (3) below of going up links to each other with following boots body (4); And the said pressure head of going up boots body (3) passes down the square hole in the middle of the boots body (4); Two blocks of said big boots plates (7) are arranged in down the left and right sides of boots body (4), and said big boots plate (7) links to each other with the ear seat (5) of following boots body (4) through major axis (8), and two blocks of said little boots plates (9) are arranged in down the front and back side of boots body (4); Each said little boots plate (9) links to each other with the ear seat (5) of following boots body (4) through minor axis (10), and said obstruction bolt (12) links to each other through being threaded with big boots plate (7), little boots plate (9).
2. according to the said a kind of self lift type maritime platform activity shoe of claim 1, it is characterized in that: the gradient on shelves limit is identical with big boots plate (7) outside gradient about said following boots body (4); The gradient on following boots body (4) front and back crosspiece limit is identical with little boots plate (9) outside gradient; The gradient of the frustum front and back sides of said pressure head (11) below is identical with the inboard gradient of little boots plate (9), and the gradient of the frustum left and right side of pressure head (11) below is identical with the big inboard gradient of boots plate (7).
3. according to the said a kind of self lift type maritime platform activity shoe of claim 1, it is characterized in that: said big boots plate (7) is around outwards upset of major axis (8) during pitching pile, and said little boots plate (9) is around outwards upset of minor axis (10); Fit with shelves limits (6) in said big boots plate (7) and inclined-plane, little boots plate (9) outside; The conical surface of said pressure head (11) is fitted with big boots plate (7), the inboard inclined-plane of little boots plate (9).
4. according to the said a kind of self lift type maritime platform activity shoe of claim 1; It is characterized in that: the last rib (13) of big boots plate (7) is arranged on the axis hole inboard of big boots plate (7), and the following rib (14) of big boots plate (7) is arranged on the axis hole outside of big boots plate (7); Rib (16) is arranged on the outside of little boots plate (9) on the little boots plate of little boots plate (9), and rib (15) is arranged on the inboard of little boots plate (9) under the little boots plate of little boots plate (9); During pitching pile when said big boots plate (7), little boots plate (9) when outwards upset puts in place; Little boots plate lower gear limit (15) is pushed down on the said big boots plate in the axis hole outside limit (23) of performing; Simultaneously big boots plate lower gear limit (14) is pushed down on the inboard little boots plate of the axis hole limit (16) of performing; The restriction that laminates, descends boots body (7) shelves limit and pressure head (11) each other through said big boots plate (7), little boots plate (9) shelves limit makes said big boots plate (7), little boots plate (9) form a stiffener plate.
5. according to the said a kind of self lift type maritime platform activity shoe of claim 1; It is characterized in that: during pile pulling said big boots plate (7) around pitching pile inwardly overturn, said little boots plate (9) is around inwardly upset of minor axis (10); And little boots plate (9) upset is earlier inwardly packed up; Big subsequently boots plate (9) inwardly upset is packed up, and the maximum secting area of the shoe after said big boots plate (7) and little boots plate (9) are packed up is less than Area of bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210230474.6A CN102704475B (en) | 2012-07-05 | 2012-07-05 | Moving pile shoe of self-elevating maritime work platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210230474.6A CN102704475B (en) | 2012-07-05 | 2012-07-05 | Moving pile shoe of self-elevating maritime work platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102704475A true CN102704475A (en) | 2012-10-03 |
| CN102704475B CN102704475B (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210230474.6A Active CN102704475B (en) | 2012-07-05 | 2012-07-05 | Moving pile shoe of self-elevating maritime work platform |
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| CN (1) | CN102704475B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3479828A (en) * | 1967-04-28 | 1969-11-25 | Shell Oil Co | Platform leg |
| US3823563A (en) * | 1972-09-05 | 1974-07-16 | Eng Technology Analysts Inc | Spud tank for offshore drilling unit |
| US3916633A (en) * | 1973-08-24 | 1975-11-04 | Engineering Technology Analyst | Means for altering motion response of offshore drilling units |
| CN2863894Y (en) * | 2006-02-23 | 2007-01-31 | 杨安平 | Valve type pile shoe |
| CN201326174Y (en) * | 2008-11-19 | 2009-10-14 | 中国石油集团长城钻探工程有限公司 | Jack-up retractable fin pile shoe for drilling platform |
| CN102226344A (en) * | 2011-04-02 | 2011-10-26 | 中国石油大学(北京) | Pile shoe structure for retractable drilling platforms |
-
2012
- 2012-07-05 CN CN201210230474.6A patent/CN102704475B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3479828A (en) * | 1967-04-28 | 1969-11-25 | Shell Oil Co | Platform leg |
| US3823563A (en) * | 1972-09-05 | 1974-07-16 | Eng Technology Analysts Inc | Spud tank for offshore drilling unit |
| US3916633A (en) * | 1973-08-24 | 1975-11-04 | Engineering Technology Analyst | Means for altering motion response of offshore drilling units |
| CN2863894Y (en) * | 2006-02-23 | 2007-01-31 | 杨安平 | Valve type pile shoe |
| CN201326174Y (en) * | 2008-11-19 | 2009-10-14 | 中国石油集团长城钻探工程有限公司 | Jack-up retractable fin pile shoe for drilling platform |
| CN102226344A (en) * | 2011-04-02 | 2011-10-26 | 中国石油大学(北京) | Pile shoe structure for retractable drilling platforms |
Non-Patent Citations (2)
| Title |
|---|
| 付丽娜: "自升式钻井船桩靴承载能力研究", 《中国优秀硕士学位论文全文数据库》, 11 August 2009 (2009-08-11) * |
| 郭志彬等: "自升式平台桩靴强度分析", 《船舶工程》, vol. 34, no. 2, 30 April 2012 (2012-04-30) * |
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| Publication number | Publication date |
|---|---|
| CN102704475B (en) | 2014-11-26 |
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Address after: 226000 No. 1, COSCO Road, Jiangsu, Nantong Co-patentee after: jiangsu university Patentee after: Nantong COSCO Shipping Engineering Co., Ltd. Co-patentee after: Southeast University Address before: 226000 Jiangsu Province, Nantong City Chongchuan District COSCO Road No. 1 Co-patentee before: jiangsu university Patentee before: COSCO Shipyard Group Co., Ltd. Co-patentee before: Southeast University |
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