WO1998052819A1 - Device for the implementation of an anchor into the sea bottom - Google Patents
Device for the implementation of an anchor into the sea bottom Download PDFInfo
- Publication number
- WO1998052819A1 WO1998052819A1 PCT/NO1998/000148 NO9800148W WO9852819A1 WO 1998052819 A1 WO1998052819 A1 WO 1998052819A1 NO 9800148 W NO9800148 W NO 9800148W WO 9852819 A1 WO9852819 A1 WO 9852819A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anchor
- designed
- accordance
- sea bed
- locking
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
-
- 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
- B63B21/26—Anchors securing to bed
- B63B21/27—Anchors securing to bed by suction
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0053—Production methods using suction or vacuum techniques
Definitions
- the present invention concerns an invention for lowering an anchor or similar into the sea bed.
- the present invention concerns a device for lowering the type of anchor described in the applicant's own Norwegian patent application no. 964139.
- the stated Norwegian patent application describes an anchor which comprises a polygon with concave side surfaces and which, in the lowered, "anchored” position, has very great anchoring capacity in relation to its weight.
- Anchors of this type can, as described in the application, be lowered into the sea bed as a pile anchor or as a suction anchor.
- a suction anchor As a suction anchor, the top of the anchor is closed with a lid or similar so that negative pressure relative to the surroundings can be applied in the cavity space of the anchor in order to pull the anchor down into the sea bed.
- One disadvantage of self-sucking anchors is that they cannot be pulled further down into the sea bed than to the top of the anchor (the lid).
- Another disadvantage concerning anchors with concave side surfaces is that they must be reinforced in order to withstand the internal negative pressure, which also increases the weight.
- the present invention represents a device for anchors, in particular anchors consisting of a polygon with concave side surfaces, which makes it possible to pull the anchor below the surface of the sea bed and in connection with which the need for reinforcement is eliminated, thus avoiding any increase in weight.
- the present invention is characterised by an implementation tool which can be removed from the anchor and which consists of one or more bodies which are closed at the top and preferably cylindrical and which are designed to have negative pressure applied to them and to lower the anchor into the sea bed as stated in the attached claim 1.
- the attached dependent claims 2-9 indicate the advantageous features of the present invention.
- Fig. 1 shows an implementation tool in accordance with the present invention seen from the side and above,
- Fig. 2 shows an alternative embodiment of an implementation tool in accordance with the present invention, also seen from the side and from above, and
- Fig. 3 shows, in a sequence of drawings from A to E, how an anchor is installed on/in the sea bed using the implementation tool in accordance with the present invention.
- Fig. 4 shows a further developed embodiment of the solution shown in Fig. 2.
- Fig. 1 shows, seen from the side and from above respectively, an implementation tool 1 in the form of a mainly cylindrical body 1 arranged inside a three-sided anchor body 2 with an anchor line 18.
- the cylindrical body is closed at the top but open at the bottom and extends expediently from the lower end of the anchor 2 to some distance above this.
- the body 1 is supported by three brackets 4 which are permanently connected to the anchor at each of its sides and which are arranged to absorb fully or partially the forces which arise in connection with lowering the anchor into the sea bed 28.
- brackets 4' may be arranged on the side of the body 1 which are designed to rest on the top of the sides of the anchor and which fully or partially transfer the forces in connection with lowering the anchor into the sea bed.
- a locking mechanism with a locking hook 5 is designed to fasten the cylinder body 1 to the anchor until the anchor has been lowered into the sea bed or to pull the anchor up again.
- the locking hook 5 is designed to be twisted out of the locked position (dotted line) to the free position (unbroken line) using, for example, an electrically or hydraulically driven motor 3 via a shaft 6 so that the implementation tool is freed from the anchor and can be pulled up.
- a pump 7, electrically or hydraulically driven is arranged on the top of the body 1 in order to pump water out of the body during the lowering operation.
- the pump 7 and the motor 3 are supplied with power via lines 8, 9.
- Fig. 2 shows, seen from the side and from above, an alternative embodiment in which the implementation tool 11 comprises three preferably cylindrical bodies 10 which are interconnected via a three-sided frame structure 12.
- the bodies 10 are closed at the top but open at the bottom and are strong enough to withstand the negative pressure and forces which arise while an anchor is lowered into the sea bed.
- the anchor 13 is fastened in, and can be removed from, the frame structure between the bodies 10 by means of a locking mechanism in the form of rotary hooks 14, one at each corner of the frame, which are designed to engage with a locking bracket 15 on the anchor and are released from this when the anchor is in place and the implementation tool is to be pulled up.
- the rotary hooks 14 may be driven by an electrical or a hydraulic motor (not shown).
- water is also pumped out of the bodies 10 using a pump 21 via a pipe system 27 with remote-controlled valves 26.
- the negative pressure in the bodies 10 can be controlled individually using valves 26 so that the direction of the anchor/implementation tool can be controlled during the lowering operation. This may be necessary, for example, in cases in which the sea bed conditions are uneven.
- Fig. 3 shows a sequence of drawings of how an anchor 2 is installed from a vessel 17 using the implementation tool 1 , in accordance with the present invention, which is of the same type as that shown in Fig. 1 in the case shown.
- Drawing A in Fig. 3 shows how the implementation tool 1 is lifted into place using a winch device 19, 20 on the vessel 17.
- the locking device is turned so that the locking hook 5 hooks in under the anchor 2, after which the anchor is lifted and lowered towards the sea bed as shown in drawing B.
- the present invention is not limited to the use of one or three cylindrical suction bodies. Both two or more than three such bodies may be used, depending on the design of the anchor.
- the present invention is not necessarily limited to the lowering of anchors but may also be used to lower piles of various designs.
- Fig. 4 shows a further developed embodiment of the invention shown in Fig. 2 in a sequence of three drawings in positions F, G and H.
- the frame 12, the suction elements 10, the locking mechanism 14, 15 and the pump and pipe system 26, 27 are the same as shown in Fig. 2.
- a passive jacking mechanism 22, 24 is added.
- the jacking mechanism comprises three jack bars 22 arranged in guides 24.
- the jack bars may expediently be of rack or sawtooth type and may be locked in the positions required using a locking mechanism 23 in the form of mobile tongues and/or remote-controlled locking wedges 25.
- the jack bars are expediently in contact with each of the corners of the anchor and will, when the anchor is lowered, absorb and transfer the forces to the frame structure via the locking mechanism 23 with the locking wedges 25.
- the implementation tool with the jacking mechanism functions as follows: the anchor 13, with the bars 22 in the upper position, is first lowered some distance into the sea bed by water being pumped out of the bodies 10, see drawing F. The locking mechanism 23 is then released and water is pumped into the bodies 10 to lift the frame and the bodies 10 to a level in relation to the bars 22 as shown in drawing G. The locking mechanism is reactivated and water is pumped out of the bodies 10, whereby the anchor is lowered further into the sea bed as shown in drawing H. This operation may be repeated until the anchor has been lowered into the sea bed by a distance equivalent to the length of the bars.
- the advantage of this solution is that small anchors may be used as the holding force increases with the penetration (depth) of the anchor in the sea bed.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Earth Drilling (AREA)
- Revetment (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU74578/98A AU734658B2 (en) | 1997-05-21 | 1998-05-15 | Device for the implementation of an anchor into the sea bottom |
EP98921926A EP0983187B1 (en) | 1997-05-21 | 1998-05-15 | Device for the implementation of an anchor into the sea bottom |
DK98921926T DK0983187T3 (en) | 1997-05-21 | 1998-05-15 | Device for implementing an anchor in the seabed |
BR9809847-0A BR9809847A (en) | 1997-05-21 | 1998-05-15 | Device to lower an anchor to the seabed |
CA002290564A CA2290564A1 (en) | 1997-05-21 | 1998-05-15 | Device for the implementation of an anchor into the sea bottom |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO972330 | 1997-05-21 | ||
NO19972330A NO311624B1 (en) | 1997-05-21 | 1997-05-21 | Device for anchor down of seabed |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998052819A1 true WO1998052819A1 (en) | 1998-11-26 |
Family
ID=19900730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1998/000148 WO1998052819A1 (en) | 1997-05-21 | 1998-05-15 | Device for the implementation of an anchor into the sea bottom |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0983187B1 (en) |
CN (1) | CN1203166A (en) |
AU (1) | AU734658B2 (en) |
BR (1) | BR9809847A (en) |
CA (1) | CA2290564A1 (en) |
DK (1) | DK0983187T3 (en) |
ID (1) | ID24342A (en) |
NO (1) | NO311624B1 (en) |
WO (1) | WO1998052819A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999057009A1 (en) | 1998-05-06 | 1999-11-11 | Suction Pile Technology B.V. | Sea anchor and method for its deployment |
EP1980746A1 (en) * | 2007-04-11 | 2008-10-15 | OpenHydro Group Limited | A method of installing a hydroelectric turbine |
US8690526B2 (en) | 2008-12-18 | 2014-04-08 | Openhydro Ip Limited | Hydroelectric turbine with passive braking |
US8864439B2 (en) | 2006-07-14 | 2014-10-21 | Openhydro Ip Limited | Tidal flow hydroelectric turbine |
US8872371B2 (en) | 2009-04-17 | 2014-10-28 | OpenHydro IP Liminted | Enhanced method of controlling the output of a hydroelectric turbine generator |
US8933598B2 (en) | 2009-09-29 | 2015-01-13 | Openhydro Ip Limited | Hydroelectric turbine with coil cooling |
KR101493330B1 (en) * | 2013-06-18 | 2015-02-13 | 한국해양과학기술원 | Multiple Embedded Suction Plate Anchor |
US9054512B2 (en) | 2008-12-19 | 2015-06-09 | Openhydro Ip Limited | Method of installing a hydroelectric turbine generator |
KR20150105080A (en) * | 2014-03-07 | 2015-09-16 | 한국해양과학기술원 | Plate Anchor Construction Apparatus using Suction Piles |
US9234492B2 (en) | 2010-12-23 | 2016-01-12 | Openhydro Ip Limited | Hydroelectric turbine testing method |
US9236725B2 (en) | 2009-09-29 | 2016-01-12 | Openhydro Ip Limited | Hydroelectric turbine cabling system |
US9473046B2 (en) | 2009-09-29 | 2016-10-18 | Openhydro Ip Limited | Electrical power conversion system and method |
US9765647B2 (en) | 2010-11-09 | 2017-09-19 | Openhydro Ip Limited | Hydroelectric turbine recovery system and a method therefor |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5992060A (en) * | 1997-11-17 | 1999-11-30 | Aker Marine, Inc. | Method of and apparatus for anchor installation |
NO332121B1 (en) * | 2010-11-09 | 2012-07-02 | Aker Subsea As | seabed Anker |
CN102673738B (en) * | 2012-05-22 | 2014-08-13 | 淮海工学院 | Automatic vertical tree root anchor |
WO2018021807A1 (en) * | 2016-07-27 | 2018-02-01 | 조병호 | Mooring apparatus |
CN108001623B (en) * | 2017-12-02 | 2019-05-17 | 中国海洋大学 | The hollow thread suction anchor passed through under itself can rotating |
CN108316338B (en) * | 2018-04-04 | 2020-01-24 | 合肥学院 | Suction injection type arc-shaped steel anchor |
CN108725701A (en) * | 2018-06-29 | 2018-11-02 | 合肥学院 | A kind of separable torpedo anchor of anchor body |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2104137A (en) * | 1981-08-22 | 1983-03-02 | Alastair Aitken Sinclair | Kentledge apparatus |
US4432671A (en) * | 1981-04-02 | 1984-02-21 | Shell Oil Company | Suction anchor and method of installing a suction anchor |
EP0260143A2 (en) * | 1986-09-10 | 1988-03-16 | LME Petroscope Limited | Method and apparatus for installing marine silos |
WO1995020075A1 (en) * | 1994-01-21 | 1995-07-27 | Johannes Rudolf Hogervorst | Method and apparatus for installing a hollow suction pile in the bottom of a body of water |
-
1997
- 1997-05-21 NO NO19972330A patent/NO311624B1/en not_active IP Right Cessation
-
1998
- 1998-05-15 BR BR9809847-0A patent/BR9809847A/en active Search and Examination
- 1998-05-15 WO PCT/NO1998/000148 patent/WO1998052819A1/en active IP Right Grant
- 1998-05-15 EP EP98921926A patent/EP0983187B1/en not_active Expired - Lifetime
- 1998-05-15 AU AU74578/98A patent/AU734658B2/en not_active Ceased
- 1998-05-15 CA CA002290564A patent/CA2290564A1/en not_active Abandoned
- 1998-05-15 DK DK98921926T patent/DK0983187T3/en active
- 1998-05-15 ID IDW991415A patent/ID24342A/en unknown
- 1998-05-21 CN CN 98108333 patent/CN1203166A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4432671A (en) * | 1981-04-02 | 1984-02-21 | Shell Oil Company | Suction anchor and method of installing a suction anchor |
GB2104137A (en) * | 1981-08-22 | 1983-03-02 | Alastair Aitken Sinclair | Kentledge apparatus |
EP0260143A2 (en) * | 1986-09-10 | 1988-03-16 | LME Petroscope Limited | Method and apparatus for installing marine silos |
WO1995020075A1 (en) * | 1994-01-21 | 1995-07-27 | Johannes Rudolf Hogervorst | Method and apparatus for installing a hollow suction pile in the bottom of a body of water |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6360682B1 (en) | 1998-05-06 | 2002-03-26 | Suction Pile Technology Bv | Sea anchor and method for its deployment |
WO1999057009A1 (en) | 1998-05-06 | 1999-11-11 | Suction Pile Technology B.V. | Sea anchor and method for its deployment |
US8864439B2 (en) | 2006-07-14 | 2014-10-21 | Openhydro Ip Limited | Tidal flow hydroelectric turbine |
EP1980746A1 (en) * | 2007-04-11 | 2008-10-15 | OpenHydro Group Limited | A method of installing a hydroelectric turbine |
JP2010523888A (en) * | 2007-04-11 | 2010-07-15 | オープンハイドロ グループ リミテッド | Installation method of tidal hydroelectric turbine installed in water |
US9284709B2 (en) | 2007-04-11 | 2016-03-15 | Openhydro Group Limited | Method of installing a hydroelectric turbine |
US8690526B2 (en) | 2008-12-18 | 2014-04-08 | Openhydro Ip Limited | Hydroelectric turbine with passive braking |
US9054512B2 (en) | 2008-12-19 | 2015-06-09 | Openhydro Ip Limited | Method of installing a hydroelectric turbine generator |
US8872371B2 (en) | 2009-04-17 | 2014-10-28 | OpenHydro IP Liminted | Enhanced method of controlling the output of a hydroelectric turbine generator |
US9236725B2 (en) | 2009-09-29 | 2016-01-12 | Openhydro Ip Limited | Hydroelectric turbine cabling system |
US8933598B2 (en) | 2009-09-29 | 2015-01-13 | Openhydro Ip Limited | Hydroelectric turbine with coil cooling |
US9473046B2 (en) | 2009-09-29 | 2016-10-18 | Openhydro Ip Limited | Electrical power conversion system and method |
US9765647B2 (en) | 2010-11-09 | 2017-09-19 | Openhydro Ip Limited | Hydroelectric turbine recovery system and a method therefor |
US9234492B2 (en) | 2010-12-23 | 2016-01-12 | Openhydro Ip Limited | Hydroelectric turbine testing method |
KR101493330B1 (en) * | 2013-06-18 | 2015-02-13 | 한국해양과학기술원 | Multiple Embedded Suction Plate Anchor |
KR20150105080A (en) * | 2014-03-07 | 2015-09-16 | 한국해양과학기술원 | Plate Anchor Construction Apparatus using Suction Piles |
KR101673152B1 (en) * | 2014-03-07 | 2016-11-08 | 한국해양과학기술원 | Plate Anchor Construction Apparatus using Suction Piles |
Also Published As
Publication number | Publication date |
---|---|
BR9809847A (en) | 2000-06-27 |
EP0983187A1 (en) | 2000-03-08 |
NO972330D0 (en) | 1997-05-21 |
CA2290564A1 (en) | 1998-11-26 |
AU734658B2 (en) | 2001-06-21 |
ID24342A (en) | 2000-07-13 |
NO972330L (en) | 1998-11-23 |
EP0983187B1 (en) | 2002-02-06 |
AU7457898A (en) | 1998-12-11 |
DK0983187T3 (en) | 2002-05-27 |
NO311624B1 (en) | 2001-12-17 |
CN1203166A (en) | 1998-12-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0983187B1 (en) | Device for the implementation of an anchor into the sea bottom | |
EP1101872B1 (en) | Marine structure | |
US4257721A (en) | System for placement of piles into the seafloor | |
US4432664A (en) | Boat hoist | |
EP1228310A1 (en) | Method and system for installing and transporting an offshore wind power station at sea | |
US4270480A (en) | Pinned suction anchors | |
WO2002079024A2 (en) | Systems and methods useful in stabilizing platforms and vessels having platforms and legs | |
US6273645B1 (en) | Position penetrated anchor system | |
US5915326A (en) | Subsea mooring | |
AU771609B2 (en) | Method for removing a jacket of a drilling or production rig and vessel provided with a device therefor | |
US4793739A (en) | Offshore structure | |
JPH04134538U (en) | Okihama drilling oil extraction structure | |
US3008691A (en) | Pile jacking apparatus | |
USH488H (en) | Hydraulic jacks for controlled load transfer | |
JPH0754391Y2 (en) | Tubing equipment | |
MXPA99010641A (en) | Device for the implementation of an anchor into the sea bottom | |
US7762744B2 (en) | Method and vessel for removing offshore structures | |
EP1257460A1 (en) | A semi-submersible offshore lifting structure, and a method for using the same | |
CN210341940U (en) | Steel sheet pile sinking construction device for foundation pit support | |
AU725166B2 (en) | Position penetrated anchor system | |
KR20220083685A (en) | A soft ground anchor for fixing one or more structures and a method for arranging the anchor in the soft ground | |
OA11409A (en) | Rov installed suction piles. | |
RU2024762C1 (en) | Device for materials handling in mine workings | |
JP2528437B2 (en) | Jack device | |
JPH04100994U (en) | Lifting thruster device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM GW HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1998921926 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 74578/98 Country of ref document: AU |
|
ENP | Entry into the national phase |
Ref document number: 2290564 Country of ref document: CA Ref document number: 2290564 Country of ref document: CA Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/1999/010641 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1199901095 Country of ref document: VN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09424351 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref document number: 1998550269 Country of ref document: JP |
|
WWP | Wipo information: published in national office |
Ref document number: 1998921926 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWG | Wipo information: grant in national office |
Ref document number: 74578/98 Country of ref document: AU |
|
WWG | Wipo information: grant in national office |
Ref document number: 1998921926 Country of ref document: EP |