CN105346677B - A kind of folding plate anchor and its application method - Google Patents
A kind of folding plate anchor and its application method Download PDFInfo
- Publication number
- CN105346677B CN105346677B CN201510762474.4A CN201510762474A CN105346677B CN 105346677 B CN105346677 B CN 105346677B CN 201510762474 A CN201510762474 A CN 201510762474A CN 105346677 B CN105346677 B CN 105346677B
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- China
- Prior art keywords
- anchor
- slabs
- mooring
- tie
- folding plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/30—Anchors rigid when in use
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Revetment (AREA)
Abstract
The present invention relates to a kind of folding plate anchor and its application method, it is characterised in that：It includes two anchor slabs, and one is sequentially hinged the triangular framing formed between two anchor slabs and by three tie-beam head and the tail, and multigroup support bar for being used to connect the triangular framing and two anchor slabs；Each anchor slab is respectively provided with echelon, support bar arranged for interval described in each group is on the triangular framing one of them described tie-beam, support bar described in every group includes two support bars, one end of each support bar is rotatablely connected with the tie-beam, the other end is fastenedly connected the inner side of an anchor slab wherein, and the common end of two other tie-beam is fastenedly connected a mooring anchor chain one end on the triangular framing.
Description
Technical field
The present invention relates to a kind of plate anchor and its application method, especially with regard to a kind of folding plate anchor and its application method.
Background technology
Floating platform is the important engineer equipment for developing ocean deepwater petroleum resources, is implemented mostly using mooring system at present
Positioning.With the increase of operating water depth, traditional towing anchor is because holding power to weight ratio is relatively low, the reason such as positioning precision difference, so not
Practical Project demand can be met.Various new type of deep-water mooring systems continue to bring out in recent years, and wherein plate anchor bearing capacity is strong, reliability
It is high and uplift force can be born, obtained in more deep water semi-submersible drilling platforms and FPSO (floating type production, storage and offloading device)
It must be applied successfully.
But because the main body of plate anchor is one flat plate, therefore stability is poor during mud is entered, and causes installation to be made
The distance that dragged of anchor during industry is unmanageable, so as to influence positioning precision.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of good and easy for installation folding plate anchor of stability and its
Application method.
To achieve the above object, the present invention takes following technical scheme：A kind of folding plate anchor, it is characterised in that：It is wrapped
Two anchor slabs are included, one is sequentially hinged the triangular framing formed between two anchor slabs and by three tie-beam head and the tail,
And multigroup support bar for being used to connect the triangular framing and two anchor slabs；Each anchor slab is respectively provided with echelon,
On the triangular framing one of them described tie-beam, support bar described in every group wraps support bar arranged for interval described in each group
Two support bars are included, one end of each support bar is rotatablely connected with the tie-beam, and the other end is fastenedly connected wherein
The inner side of one anchor slab, the common end of two other tie-beam is fastenedly connected a system on the triangular framing
Moor anchor chain one end.
The tie point of each support bar and the tie-beam is close to the short base of two anchor slabs.
The triangular framing is right angled triangle.
Two anchor slabs are respectively adopted steel and are made.
Each tie-beam is made of metal.
A kind of application method of folding plate anchor, it comprises the following steps：1) fastened first on the long base of two anchor slabs
The rope body of connection one, makes two anchor slabs be in almost parallel state, and a retracting device is set on two anchor slabs, and retracting device includes two
Anchor chain, a cable and the connector of two anchor chains of connection and cable, one end of each anchor chain is fastenedly connected an anchor slab wherein
The top on upper close short base；2) mooring anchor chain is dragged to floating drilling platform using tugboat or workboat, makes two anchor slabs embedding
Enter to seabed soil desired depth, one ball float is set in the free end of cable；3) continue to pull mooring using tugboat or workboat
Anchor chain, in the presence of the soil drag of seabed, the rope body fracture between two anchor slabs, soil and mooring pulling force collective effect in seabed
Under, two support bars of every group of support bar constantly open, and realize two anchor slabs from installment state successively to intermediateness, load condition
Transition；4) two anchor slabs are controlled to open and be in same plane completely, mooring force increases suddenly, continues to increase tugboat or workboat
Dilatory force make two anchor slabs in the soil of seabed in more stable position；5) set in the free end of mooring anchor chain another
One ball float, after floating drilling platform is in place, salvages the ball float of mooring anchor chain free end using loop wheel machine and carry out mooring anchor chain company
Connect, tighten up mooring anchor chain afterwards, into job state.
Rope body used in the step 1) is made of nylon.
When anchoring into row recovery after fulfiling assignment to plate, the floating of cable ends is salvaged using another tugboat or workboat
Ball, and cable is drawn to the direction away from floating platform, plate anchor is pulled out seabed mud face, completes recovery.
For the present invention due to taking above technical scheme, it has advantages below：1st, the present invention is due to setting two anchor slabs, and one
It is individual to be located between two anchor slabs and be sequentially hinged the triangular framing formed by three tie-beam head and the tail and multigroup for connecting three
The support bar of angular framework and two anchor slabs, therefore stability is good during use, it is simple in construction and easy for installation.2nd, this hair
Bright two anchor slab is arranged respectively to trapezoidal, is embedded into beneficial to two anchor slabs along its bottom wedge angle in the soil of seabed.3rd, triangle of the present invention
Framework is right angled triangle, is embedded into beneficial to by the present invention in the soil of seabed.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention
Fig. 2 is the structural representation that the present invention is in installment state
Fig. 3 is the structural representation that the present invention is in intermediateness
Fig. 4 is the structural representation that the present invention is in load condition
Fig. 5 is that the present invention completes structural representation in place after installing
Fig. 6 is structural representation when connected floating drilling platforms of the present invention carries out operation
Fig. 7 is the structural representation when present invention is reclaimed
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the present invention proposes a kind of folding plate anchor, it includes two anchor slabs 1, and one is located at two anchor slabs 1
Between and by the head and the tail of three tie-beams 2,3,4 be sequentially hinged the triangular framing formed, it is and multigroup for connecting triangle frame
The support bar 5 of frame and two anchor slabs 1.Wherein, each anchor slab 1 is respectively provided with echelon, is embedded into beneficial to two anchor slabs 1 along its bottom wedge angle
In the soil of seabed.The arranged for interval of each group support bar 5 is on the one of tie-beam 3 of triangular framing.Every group of support bar 5 includes
Two support bars 5, one end of each support bar 5 are rotatablely connected with tie-beam 3, and the other end is fastenedly connected an anchor slab 1 wherein
Inner side.The common end of other two tie-beam 2,4 is fastenedly connected the one end of a mooring anchor chain 6 on the triangular framing.
In above-described embodiment, the tie point of each support bar 51 and tie-beam 3 is close to the short base of two anchor slabs 1.
In above-described embodiment, triangular framing can be right angled triangle, be embedded into beneficial to by plate anchor in the soil of seabed.
In above-described embodiment, two anchor slabs 1 are respectively adopted steel and are made.
In above-described embodiment, each tie-beam 2,3,4 is made of metal.
The invention also provides a kind of application method of folding plate anchor, it comprises the following steps：
1) a rope body 7 is fastenedly connected on the long base of two anchor slabs 1 first, so that two anchor slabs 1 are in almost parallel shape
State, as shown in figs. 2 to 4, a retracting device 8 is set on two anchor slabs 1, retracting device 8 includes two anchor chains 81, a cable 82 and one
Connect the connector 83 of two anchor chains 81 and cable 82, one end of each anchor chain 81 is fastenedly connected close on an anchor slab 1 wherein
The top on short base；
2) present invention is pre-installed, mooring anchor chain 6 is dragged to floating drilling platform 9 using tugboat or workboat, made
Two anchor slabs 1 are embedded into seabed soil desired depth, and a ball float is set in the free end of cable 82；
3) continue to pull mooring anchor chain 6 using tugboat or workboat, make in the presence of the soil drag of seabed two anchor slabs 1 it
Between the fracture of rope body, under seabed soil and mooring pulling force effect, two support bars 5 of every group of support bar 5 constantly open, two anchors
Plate 1 constantly opens, and realizes two anchor slabs 1 from installment state successively to intermediateness, load condition transition (as shown in figs. 2 to 4)；
4) anchor slab 1 of control two is opened completely and in same plane, mooring force increases suddenly, continues to increase tugboat or work
Making the dilatory force of ship makes two anchor slabs 1 in the soil of seabed in more stable position (as shown in Figure 5)；
5) another ball float is set in the free end of mooring anchor chain 6, after floating drilling platform 9 is in place, salvaged using loop wheel machine
The ball float of the free end of mooring anchor chain 6 simultaneously carries out mooring anchor chain 6 and connected, and mooring anchor chain 6 is tightened up afterwards, into job state (such as Fig. 6
It is shown)；
6) when being reclaimed to the present invention, the ball float of the free end of cable 82 is salvaged using another tugboat or workboat 10, and
Cable 82 is drawn to the direction away from floating drilling platform 9, the present invention is pulled out mud face, completes recovery (as shown in Figure 7).
In above-described embodiment, rope body 7 is made of nylon in step 1).
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each part, connected mode etc. are all can be
Change, every equivalents carried out on the basis of technical solution of the present invention and improvement, it should not exclude the present invention's
Outside protection domain.
Claims (9)
- A kind of 1. folding plate anchor, it is characterised in that：It includes two anchor slabs, and one between two anchor slabs and by three Tie-beam head and the tail are sequentially hinged the triangular framing formed, and multigroup for connecting the triangular framing and two anchor slabs Support bar；Each anchor slab is respectively provided with echelon, support bar arranged for interval described in each group in the triangular framing wherein On one tie-beam, support bar described in every group includes two support bars, one end of each support bar with the company Beam rotation connection is connect, the other end is fastenedly connected the inner side of an anchor slab wherein, on the triangular framing in addition The common end of two tie-beams is fastenedly connected a mooring anchor chain one end；The plate anchor when in use, comprises the following steps：1) a rope body is fastenedly connected on the long base of two anchor slabs first, two anchor slabs is in almost parallel state, in two anchors One retracting device is set on plate, and retracting device includes two anchor chains, a cable and the connector of two anchor chains of connection and cable, each One end of anchor chain is fastenedly connected wherein on an anchor slab close to the top on short base；2) mooring anchor chain is dragged to floating drilling platform using tugboat or workboat, two anchor slabs is embedded into seabed soil and make a reservation for Depth, one ball float is set in the free end of cable；3) continue to pull mooring anchor chain, in the presence of the soil drag of seabed, the rope between two anchor slabs using tugboat or workboat Body is broken, and under seabed soil and mooring pulling force collective effect, two support bars of every group of support bar constantly open, and realize two anchors Plate is from installment state successively to intermediateness, load condition transition；4) two anchor slabs are controlled to open and be in same plane completely, mooring force increases suddenly, continues to increase tugboat or workboat Dilatory force make two anchor slabs in the soil of seabed in more stable position；5) another ball float is set in the free end of mooring anchor chain, after floating drilling platform is in place, mooring anchor is salvaged using loop wheel machine The ball float of chain free end simultaneously carries out mooring anchor chain link, mooring anchor chain is tightened up afterwards, into job state.
- A kind of 2. folding plate anchor as claimed in claim 1, it is characterised in that：The company of each support bar and the tie-beam Contact is close to the short base of two anchor slabs.
- A kind of 3. folding plate anchor as claimed in claim 1, it is characterised in that：The triangular framing is right angled triangle.
- A kind of 4. folding plate anchor as claimed in claim 2, it is characterised in that：The triangular framing is right angled triangle.
- A kind of 5. folding plate anchor as claimed in claim 1 or 2 or 3 or 4, it is characterised in that：Two anchor slabs are respectively adopted Steel are made.
- A kind of 6. folding plate anchor as claimed in claim 1 or 2 or 3 or 4, it is characterised in that：Each tie-beam is adopted It is made of metal.
- A kind of 7. folding plate anchor as claimed in claim 5, it is characterised in that：Each tie-beam uses metal system Into.
- A kind of 8. folding plate anchor as claimed in claim 1, it is characterised in that：Capable recovery is anchored into plate after fulfiling assignment When, the ball float of cable ends is salvaged using another tugboat or workboat, and cable is drawn to the direction away from floating drilling platform Line, plate anchor are pulled out seabed mud face, complete recovery.
- A kind of 9. folding plate anchor as claimed in claim 1, it is characterised in that：The rope body is made of nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762474.4A CN105346677B (en) | 2015-11-10 | 2015-11-10 | A kind of folding plate anchor and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762474.4A CN105346677B (en) | 2015-11-10 | 2015-11-10 | A kind of folding plate anchor and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105346677A CN105346677A (en) | 2016-02-24 |
| CN105346677B true CN105346677B (en) | 2018-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510762474.4A Active CN105346677B (en) | 2015-11-10 | 2015-11-10 | A kind of folding plate anchor and its application method |
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| Country | Link |
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| CN (1) | CN105346677B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237308A (en) * | 2017-05-03 | 2017-10-10 | 浙江大学 | A kind of folded form new type of plate anchor and its installation method |
| CN109374418B (en) * | 2018-09-20 | 2020-05-12 | 浙江大学 | Method for testing tangential and normal resistance of anchor chain and soil under equivalent elastic boundary |
| CN110510067B (en) * | 2019-09-19 | 2024-08-02 | 上海交通大学 | Double-anchor-plate suction penetration type normal bearing anchor and installation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5829379A (en) * | 1994-07-21 | 1998-11-03 | Von Spies; Rudiger | Plate anchor |
| CN101596927A (en) * | 2009-07-01 | 2009-12-09 | 天津大学 | A kind of embedded type drag plate anchor that is applicable to mooring system in deep water |
| CN102556284A (en) * | 2012-03-02 | 2012-07-11 | 中国石油大学(华东) | Suction penetrating arc-shaped plate anchor, mounting tool for same and construction method for same |
| CN203996788U (en) * | 2014-06-12 | 2014-12-10 | 江苏扬远船舶设备铸造有限公司 | A kind of novel danforth anchor of high holding power |
| CN104417714A (en) * | 2013-08-19 | 2015-03-18 | 天津骏帆船舶工程有限公司 | Folded gravity anchor for ship |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150077559A (en) * | 2013-12-27 | 2015-07-08 | 대우조선해양 주식회사 | pile input plate type anchor and installing method thereof |
-
2015
- 2015-11-10 CN CN201510762474.4A patent/CN105346677B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5829379A (en) * | 1994-07-21 | 1998-11-03 | Von Spies; Rudiger | Plate anchor |
| CN101596927A (en) * | 2009-07-01 | 2009-12-09 | 天津大学 | A kind of embedded type drag plate anchor that is applicable to mooring system in deep water |
| CN102556284A (en) * | 2012-03-02 | 2012-07-11 | 中国石油大学(华东) | Suction penetrating arc-shaped plate anchor, mounting tool for same and construction method for same |
| CN104417714A (en) * | 2013-08-19 | 2015-03-18 | 天津骏帆船舶工程有限公司 | Folded gravity anchor for ship |
| CN203996788U (en) * | 2014-06-12 | 2014-12-10 | 江苏扬远船舶设备铸造有限公司 | A kind of novel danforth anchor of high holding power |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105346677A (en) | 2016-02-24 |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |