CN203544312U - Suction anchor with attached skirt - Google Patents
Suction anchor with attached skirt Download PDFInfo
- Publication number
- CN203544312U CN203544312U CN201320716536.4U CN201320716536U CN203544312U CN 203544312 U CN203544312 U CN 203544312U CN 201320716536 U CN201320716536 U CN 201320716536U CN 203544312 U CN203544312 U CN 203544312U
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- Prior art keywords
- anchor
- attached
- pulling force
- skirt
- attached skirts
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000013459 approach Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004873 anchoring Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a suction anchor with an attached skirt, and belongs to the technical field of suction anchors. The suction anchor with the attached skirt comprises an anchor tube, an attached skirt, a plurality of tension chains and a guide ring, wherein the attached skirt comprises a plurality of skirt pieces whose radial cross section is an arc segment, the skirt pieces are formed into a cylinder when the skirt pieces close up, the inner diameter of the cylinder is close to or equal to the outer diameter of the anchor tube. The guide ring is arranged at the lower end of the anchor tube in a sleeved mode, one side of each skirt piece is connected with the guide ring through a hinging mechanism, the other side of the skirt piece is connected with one end of a piece of tension chain through the hinging mechanism, the other end of the tension chain is connected with the outer wall of the anchor tube through the hinging mechanism. The suction anchor with the attached skirt has a good vertical limit carrying capacity.
Description
Technical field
The utility model relates to a kind of suction anchor with attached skirts, belongs to suction anchor technical field.
Background technology
Suction anchor is the unlimited inversion tubbiness in top closure, lower end or inversion cup-shaped, and it is more special that sinking is installed, and dominant mechanism is principle of negative pressure." negative pressure " that suction anchor relies on only realizes in sinker process, and after sinker completes, " negative pressure " disappears.At this moment suction anchor, in fact just as conventional flush type stub, relies on the drag of surrounding soil that anchoring ability is provided, and this is the principle of work of general suction anchor.And along with Offshore Oil Industry is gradually to the development of waters, He Chao deep-sea, deep-sea, the novel sea structures such as tension leg platform (TLP) and basis are widely applied in engineering.Compare with offshore platform, these deep water platforms be that anchored loading significantly increases.And tension leg platform is still used a formula anchor mostly, main because the veritcal limit load-carrying capacity of suction anchor is limited.Therefore, be necessary to research and develop a kind of improved suction anchor, can have good veritcal limit load-carrying capacity and horizontal limeit load-carrying capacity simultaneously.
Summary of the invention
The limited shortcoming of veritcal limit load-carrying capacity existing for overcoming existing suction anchor, goal of the invention of the present utility model is to provide a kind of suction anchor with attached skirts, and described suction anchor has good veritcal limit load-carrying capacity.
For realizing described goal of the invention, the utility model provides a kind of suction anchor with attached skirts, it comprises anchor cylinder, attached skirts, many pulling force chains and guide ring, wherein, the skirt sheet that attached skirts is arc section by multi-disc radial section forms, during gathering, form cylinder, the internal diameter of cylinder approaches with the external diameter of anchor cylinder or is identical; Guide ring is enclosed within the lower end of anchor cylinder; One side of every panel skirt sheet connects by hinge joint mechanism guide ring, and another side is connected with one end of a pulling force chain by hinge joint mechanism; The other end of pulling force chain is connected with anchor drum outer wall by hinge joint mechanism.
External diameter when preferably, the external diameter of guide ring is transitioned into gradually attached skirts and draws in from the external diameter of anchor cylinder.
Preferably, attached skirts is positioned at middle part or the lower part of anchor drum outer wall, half of the anchor tube length degree that the length of attached skirts is no more than.
Preferably, when attached skirts is opened, cross each skirt sheet relevant with pulling force chain contour length to the maximum angle of the tangent line of the skirt sheet of the anchor point of guide ring and the tangent line of anchor drum outer wall, maximum angle at 30 degree between 120 degree.
Preferably, after every pulling force chain is tightened, pulling force chain and cross pulling force chain and the angle of the tangent line of the anchor drum outer wall of the anchor point of anchor drum outer wall at 5 degree between 120 degree.
Compared with prior art, the suction anchor with attached skirts that the utility model provides, on traditional suction anchor basis, increase can unidirectionally be opened adheres to skirt sheet, these adhere to skirt sheet downward movement due to suction anchor in suction anchor installation process, all the time be close to anchor drum outer wall, keep vertical rounding state.At suction anchor, arrive after projected depth, anchor cylinder top negative pressure is converted to malleation, anchor cylinder is returned and pulls out a segment distance, this opens under the tangential forces with soil making to adhere to skirt sheet.Suction anchor adheres to after the unlatching of skirt sheet, and the horizontal projection sectional area of suction anchor significantly increases, and adhering to skirt sheet provides vertical bearing ability by relying on the positive pressure of soil, and this positive pressure more can provide vertical bearing ability effectively than friction force.
Accompanying drawing explanation
Fig. 1 is the front schematic view of the suction anchor with attached skirts that provides of the utility model;
Fig. 2 is the attached skirts enlarged diagram of the suction anchor with attached skirts that provides of the utility model;
Fig. 3 is the pulling force chain enlarged diagram of the suction anchor with attached skirts that provides of the utility model;
Fig. 4 is the attitude schematic perspective view after installing of the suction anchor with attached skirts that provides of the utility model;
Fig. 5 be the suction anchor with attached skirts that provides of the utility model install after attached skirts enlarged diagram.
The specific embodiment
Below in conjunction with accompanying drawing, describe the utility model in detail, identical Reference numeral represents identical parts.
Fig. 1 is the front schematic view of the suction anchor with attached skirts that provides of the utility model.As shown in Figure 1, the utility model provides the suction anchor with attached skirts to comprise anchor cylinder 1, attached skirts 2, many pulling force chains 3 and guide ring 7, wherein, the skirt sheet that attached skirts is arc section by multi-disc radial section forms, during gathering, form cylinder, the internal diameter of cylinder approaches with the external diameter of anchor cylinder or is identical; Guide ring is enclosed within the lower end of anchor cylinder; One side of every panel skirt sheet is connected with guide ring 7 by hinge joint mechanism 6, and another side is connected with one end of a pulling force chain 3 by hinge joint mechanism 6; The other end of pulling force chain 3 is connected with anchor drum outer wall by hinge joint mechanism 4.More particularly, in the following central authorities of every sheet with in the outside of skirt sheet, centre on the upper side arranges hinge joint mechanism, and in skirt sheet top central authorities, notch is set, by hinge joint mechanism, be connected with guide ring below, the hinge joint mechanism that is arranged on outside centre is on the upper side connected with one end of an anchor chain, and anchor chain is connected with anchor drum outer wall by hinge joint mechanism 4 through notch.The external diameter when external diameter of guide ring 7 is transitioned into gradually attached skirts 2 and draws in from the external diameter of anchor cylinder 1, avoids contacting with soil is positive for the protection of the bottom of adhering to skirt sheet, and reduces the soil resistance force that suction anchor will overcome when mounted.Attached skirts is positioned at middle part or the lower part of anchor drum outer wall, half of the anchor tube length degree that the length of attached skirts position is no more than.
Fig. 2 is the attached skirts enlarged diagram of the suction anchor with attached skirts that provides of the utility model.As shown in Figure 2, the skirt sheet that attached skirts 2 is arc section by multi-disc radial section forms, multi-disc skirt sheet is ordered in middle part or the latter half of suction anchor outer wall, one side of every panel skirt sheet connects by hinge joint machine 6 structure guide rings 7, and another side is connected with one end of a pulling force chain 3 by hinge joint mechanism 6; The other end of pulling force chain 3 is connected with anchor drum outer wall by hinge joint mechanism 4.When attached skirts is during in rounding state, pulling force chain relaxes.
Fig. 3 is the pulling force chain enlarged diagram of the suction anchor with attached skirts that provides of the utility model.As shown in Figure 3, the bottom of every pulling force chain 3 is connected in one by hinge joint mechanism 5 and adheres on skirt sheet, hinge joint mechanism 5 is the position near edge at skirt sheet, when adhering to the gathering of skirt sheet, pulling force chain passes through from adhering to Qun Pian center short slot, can make like this attached skirts layout compacter, be convenient to transportation and install.
Fig. 4 is the attitude schematic perspective view after installing of the suction anchor with attached skirts that provides of the utility model.As shown in Figure 4, when attached skirts is opened to design attitude, every pulling force chain 3 is tightened.Every is adhered to the soil resistance force part that skirt sheet bears and is delivered to anchor cylinder by a pulling force chain, and remainder is delivered to anchor cylinder by adhering to skirt sheet bottom hinge joint mechanism 6.
Fig. 5 be the suction anchor with attached skirts that provides of the utility model install after attached skirts enlarged diagram.As shown in Figure 5, the position of skirt sheet near edge adhered to the connecting portion that adheres to skirt sheet in the bottom of pulling force chain 3.When attached skirts is opened, cross each skirt sheet relevant with pulling force chain contour length to the maximum angle of the tangent line of the skirt sheet of the anchor point of guide ring and the tangent line of anchor drum outer wall, maximum angle at 30 degree between 120 degree.After every pulling force chain is tightened, pulling force chain and cross pulling force chain and the angle of the tangent line of the anchor drum outer wall of the anchor point of anchor drum outer wall at 5 degree between 120 degree.
The utility model provides vertical bearing ability after providing power anchor to open by attached skirts with the positive pressure of soil, this positive pressure more can provide vertical bearing ability effectively than friction force, thereby significantly increases the vertical bearing ability of suction anchor.
More than being described with reference to the accompanying drawings the utility model, is only for explaining claims but those of ordinary skills it should be known that specification sheets.But protection domain of the present utility model is not limited to specification sheets.In the technical scope that any those skilled in the art of being familiar with disclose at the utility model, the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (5)
1. with a suction anchor for attached skirts, it is characterized in that, it comprises anchor cylinder, attached skirts, many pulling force chains and guide ring, wherein, the skirt sheet that attached skirts is arc section by multi-disc radial section forms, and forms cylinder during gathering, and the internal diameter of cylinder approaches with the external diameter of anchor cylinder or be identical; Guide ring is enclosed within the lower end of anchor cylinder; One side of every panel skirt sheet connects by hinge joint mechanism guide ring, and another side is connected with one end of a pulling force chain by hinge joint mechanism; The other end of pulling force chain is connected with anchor drum outer wall by hinge joint mechanism.
2. the suction anchor with attached skirts according to claim 1, is characterized in that, the external diameter when external diameter of guide ring is transitioned into gradually attached skirts and draws in from the external diameter of anchor cylinder.
3. according to the described suction anchor with attached skirts of claim 2, it is characterized in that, attached skirts is positioned at middle part or the lower part of anchor drum outer wall, half of the anchor tube length degree that the length of attached skirts is no more than.
4. according to the described suction anchor with attached skirts of claim 3, it is characterized in that, when attached skirts is opened, cross each skirt sheet relevant with pulling force chain contour length to the maximum angle of the tangent line of the skirt sheet of the anchor point of guide ring and the tangent line of anchor drum outer wall, maximum angle at 30 degree between 120 degree.
5. according to the described suction anchor with attached skirts of claim 4, it is characterized in that, after every pulling force chain is tightened, pulling force chain and cross pulling force chain and the angle of the tangent line of the anchor drum outer wall of the anchor point of anchor drum outer wall at 5 degree between 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320716536.4U CN203544312U (en) | 2013-11-13 | 2013-11-13 | Suction anchor with attached skirt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320716536.4U CN203544312U (en) | 2013-11-13 | 2013-11-13 | Suction anchor with attached skirt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203544312U true CN203544312U (en) | 2014-04-16 |
Family
ID=50462466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320716536.4U Expired - Lifetime CN203544312U (en) | 2013-11-13 | 2013-11-13 | Suction anchor with attached skirt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203544312U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600812A (en) * | 2013-11-13 | 2014-02-26 | 青岛迪玛尔海洋工程有限公司 | Suction anchor with attached skirt |
| CN109736999A (en) * | 2018-11-22 | 2019-05-10 | 中国船舶重工集团公司第七一九研究所 | A kind of removable fold-playing wave energy generating set |
| CN112092979A (en) * | 2020-09-14 | 2020-12-18 | 大连理工大学 | Combined type fish-thunder anchor based on bionics and installation method thereof |
-
2013
- 2013-11-13 CN CN201320716536.4U patent/CN203544312U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600812A (en) * | 2013-11-13 | 2014-02-26 | 青岛迪玛尔海洋工程有限公司 | Suction anchor with attached skirt |
| CN103600812B (en) * | 2013-11-13 | 2015-10-07 | 青岛迪玛尔海洋工程有限公司 | With the suction anchor of attached skirts |
| CN109736999A (en) * | 2018-11-22 | 2019-05-10 | 中国船舶重工集团公司第七一九研究所 | A kind of removable fold-playing wave energy generating set |
| CN109736999B (en) * | 2018-11-22 | 2020-12-01 | 中国船舶重工集团公司第七一九研究所 | Movable folding and unfolding type wave energy power generation device |
| CN112092979A (en) * | 2020-09-14 | 2020-12-18 | 大连理工大学 | Combined type fish-thunder anchor based on bionics and installation method thereof |
| CN112092979B (en) * | 2020-09-14 | 2021-07-02 | 大连理工大学 | Combined type fish-thunder anchor based on bionics and installation method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |