WO2021096368A4 - Floating construction with mooring system and mooring method - Google Patents
Floating construction with mooring system and mooring method Download PDFInfo
- Publication number
- WO2021096368A4 WO2021096368A4 PCT/NO2020/050277 NO2020050277W WO2021096368A4 WO 2021096368 A4 WO2021096368 A4 WO 2021096368A4 NO 2020050277 W NO2020050277 W NO 2020050277W WO 2021096368 A4 WO2021096368 A4 WO 2021096368A4
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anchor
- floating construction
- lines
- anchors
- construction
- Prior art date
Links
Classifications
-
- 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
- B63B21/22—Handling or lashing of anchors
-
- 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
- B63B21/22—Handling or lashing of anchors
- B63B21/227—Stowing the anchor inside the vessel by hauling-in through an aperture in the side walls, stern or bottom
-
- 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
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- 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
- B63B2021/003—Mooring or anchoring equipment, not otherwise provided for
-
- 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
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B2021/505—Methods for installation or mooring of floating offshore platforms on site
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/34—Pontoons
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Artificial Fish Reefs (AREA)
- Revetment (AREA)
Abstract
Floating construction (10) with a mooring system, the mooring system comprising at least two anchors (20) peripherally arranged on the floating construction (10) and configured to be submerged to the seabed soil. The anchors (20) are provided with one or more anchor-lines (40) extending towards an opposite peripheral part of the floating construction (10) and connected to a fastening point (41) on the floating construction (10). Each anchor-line (40), when moored, comprises a catenary configuration substantially lying within the footprint of the floating construction (10). It is also described a mooring method for a floating construction (10).
Claims
1
AMENDED CLAIMS received by the International Bureau on 11 May 2021 (11.05.2021)
1. Floating construction (10) with a mooring system, the mooring system comprising at least two anchors (20) peripherally arranged on the floating construction (10) and configured to be lowered to the seabed soil by a lowering means, wherein the at least two anchors (20) are provided with one or more anchor lines (40) extending towards an opposite peripheral part of the floating construction (10), and connected to a fastening point (41) on the floating construction (10), characterized in that the floating construction (10) further comprises wells (30) arranged in a hull of the floating construction (10) configured to accommodate the anchors (20) when the floating construction (10) is unmoored, and wherein each anchor (20) is provided with anchor-lines (40) extending in two different directions towards a well (30) on an opposite peripheral part of the floating construction (10).
2. Floating construction (10) according to claim 1, wherein the wells (30) are configured as recesses in the floating construction (10) configured to at least partially surround an anchor in an unmoored configuration and thus shield the anchor (20) and the corresponding anchor-lines (40) from contact with another vessel in an area adjacent the floating construction (10) to be used as a quay area.
3. Floating construction (10) according to claim 1, wherein the wells (30) are configured as vertical holes through the hull of the floating construction (10), such that the well surrounds the anchor (20) on all sides when the anchor is within the well.
4. Floating construction (10) according to any of the preceding claims, wherein the anchor-lines (40) are arranged such that they pass through a well (30) arranged on an opposite peripheral part of the floating construction (10) relative to the anchor location, and is attached to a fastening point (41) arranged on the deck of the floating construction (10), the anchor-lines (40) running along the bottom of or a side part of the floating construction (10) when the anchors (20) are contained in the wells (30).
2
5. Floating construction (10) according to any of the preceding claims, wherein said wells (30) comprise one or more guideways (31) preferably inclined and/or curved, for positioning and guiding the anchor-line(s) through the well and towards the anchor located on an opposite peripheral part of the floating construction, the guideways (31) being arranged with an offset relative to the guideways (31) in an opposite well (30).
6. Floating construction (10) according to any of the preceding claims, wherein the fastening point (41) is a winch arrangement for controlling the length and tension of the anchor-line (40).
8. Floating construction (10) according to any of the preceding claims, comprising four wells (30) and four corresponding anchors (20), each anchor (20) being provided with two anchor-lines (40), one of said two anchor-lines (40) extending towards an opposite well (30) in one direction, the other of said two anchor-lines (40) extending towards an opposite well (30) in another direction.
9. Floating construction (10) according to claim 8, each anchor (20) being provided with four anchor-lines (40), two of said four anchor-lines (40) extending in parallel towards an opposite well (30) in one direction, the other two of said four anchor-lines (40) extending in parallel towards an opposite well (30) in another direction.
10. Floating construction (10) according to claim 8 or 9, comprising a rectangular or square shape wherein the wells (30) are located near the corners of the floating construction (10), the anchor-lines (40) extending substantially in the transverse or longitudinal direction of the floating construction (10).
11. Floating construction (10) according to any of the preceding claims, wherein the mooring system comprises a centrally arranged anchor (20), the centrally
3 arranged anchor (20) provided with anchor-lines (40) extending towards at least two peripherally arranged anchors (20).
12. Floating construction (10) according to any of the preceding claims wherein the hull shape of the floating construction (10) comprises an upwards inclined end towards an end part of the construction (10) intended to face the shore, such that the depth of the floating construction (10) in the water at said part is reduced.
13. Floating construction (10) according to any of the preceding claims, wherein one or more of the anchor-lines (40) are provided with a shock absorber (60) at the fastening point (41) of said one or more anchor-lines (40) on the floating construction (10).
14. Method for mooring a floating construction according to any of the claims 1-13, the floating construction (10) being located in position for mooring, comprising:
- lowering each of the peripherally arranged anchors (20) on the floating construction (10) by use of a lowering means from a position within a well (30) in the floating construction (10) to the seabed (100), wherein the anchors (20) may be lowered one by one or simultaneously, while
- allowing the anchor-lines (40) attached to said anchors (20) to be released in order to allow the anchor (20) to be at least partly submerged in the seabed (100), the anchor-lines (40) extending towards an opposite peripheral part of the floating construction (10), and being connected to a fastening point (41) on the floating construction,
- disconnecting the lowering means from the anchors (20),
- tightening the anchor-lines (40) and adjusting the tension in the anchor-lines (40), such that the anchor-lines (40) obtain a catenary configuration substantially lying within the footprint of the floating construction (10).
15. Method according to claim 14, wherein the floating construction (10) comprises four anchors (20) and wherein two of said four anchors (20) are peripherally arranged and spaced apart at a first end part of the construction (10)
4 and the other two anchors (20) are peripherally arranged and spaced apart at a second end part of the floating construction (10) being opposite the first end part, and wherein the following steps are performed in sequence so as to increase the spread of the anchors (20) at the second end part of the floating construction (10), the floating construction being positioned in an initial position at 0°:
- submerging a first of the anchors (20) located at the first end part of the floating construction (10), said first anchor (20) serving as a pivot point, and preferably having a hoisting rope (22) fastened to said first anchor (20),
- rotating the floating construction (10) to approximately 0° to 25° in counter clockwise direction about said pivot point such that the other three peripheral anchors (20) are shifted sideways,
- submerging a second anchor (20) and detaching the corresponding hoisting rope (22), said second anchor (20) being located at the second end part of the floating construction (10) and being in front of the rotation,
- rotating the floating construction (10) in the opposite direction about the pivot point to approximately 0° to 25° relative to the initial position,
- submerging the other one of the anchors (20) located at the second end part of the floating construction (10) and detaching the corresponding hoisting rope (22),
- rotating the floating construction (10) back to approximately its initial position and preferably at this stage, tightening the anchor-lines (40) connected to the anchors (20) submerged from the second end part,
- submerging the last of the four anchors (20) and detaching the remaining hoisting ropes (22),
- tightening the remaining anchor-lines (40), wherein the rotation may also be performed first in a clockwise direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20191360 | 2019-11-15 | ||
| NO20191360A NO346197B1 (en) | 2019-11-15 | 2019-11-15 | Floating construction with mooring system and mooring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2021096368A1 WO2021096368A1 (en) | 2021-05-20 |
| WO2021096368A4 true WO2021096368A4 (en) | 2021-07-08 |
Family
ID=73699375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/NO2020/050277 WO2021096368A1 (en) | 2019-11-15 | 2020-11-11 | Floating construction with mooring system and mooring method |
Country Status (2)
| Country | Link |
|---|---|
| NO (1) | NO346197B1 (en) |
| WO (1) | WO2021096368A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51151985A (en) * | 1975-06-20 | 1976-12-27 | Mitsubishi Heavy Ind Ltd | Flo ating structure mooring method |
| JPS5853628B2 (en) * | 1979-07-20 | 1983-11-30 | 五洋建設株式会社 | Marine floating structure mooring device and mooring method |
| JPS5932579A (en) * | 1982-08-17 | 1984-02-22 | Yorigami Kensetsu Kk | Transport base ship holdable at fixed position |
| SE469068B (en) * | 1989-03-22 | 1993-05-10 | Carl Thomas Melin | SYSTEM FOR FIXED VEHICLES AND MARINE ANCHORES |
| FR2720999A1 (en) * | 1994-06-13 | 1995-12-15 | Michel Ebersolt | Anchoring system for ship |
| JPH10264881A (en) * | 1997-03-27 | 1998-10-06 | Hitachi Zosen Corp | Anchoring device for catamaran |
| JP4221182B2 (en) * | 2002-02-12 | 2009-02-12 | 三菱重工鉄構エンジニアリング株式会社 | Floating structure mooring device |
| NO320252B1 (en) * | 2003-05-21 | 2005-11-14 | Hydra Tidal Energy Technology | Device for anchoring a floating structure |
| KR101171441B1 (en) * | 2009-12-02 | 2012-08-08 | 조영철 | Mooring system |
| NL2014835B1 (en) * | 2015-05-21 | 2017-01-31 | Boskalis Bv Baggermaatschappij | Sheerleg crane with motion reduction device. |
| CN206634159U (en) * | 2017-03-30 | 2017-11-14 | 羲和太阳能电力有限公司 | A kind of floating on water surface photovoltaic plant fixing device |
-
2019
- 2019-11-15 NO NO20191360A patent/NO346197B1/en unknown
-
2020
- 2020-11-11 WO PCT/NO2020/050277 patent/WO2021096368A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| NO346197B1 (en) | 2022-04-19 |
| WO2021096368A1 (en) | 2021-05-20 |
| NO20191360A1 (en) | 2021-05-17 |
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