EP3635180B1 - Startverfahren - Google Patents

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Publication number
EP3635180B1
EP3635180B1 EP18737658.7A EP18737658A EP3635180B1 EP 3635180 B1 EP3635180 B1 EP 3635180B1 EP 18737658 A EP18737658 A EP 18737658A EP 3635180 B1 EP3635180 B1 EP 3635180B1
Authority
EP
European Patent Office
Prior art keywords
pontoon
water
support pillar
lowering
launching
Prior art date
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.)
Active
Application number
EP18737658.7A
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English (en)
French (fr)
Other versions
EP3635180A1 (de
Inventor
Thomas CHOISNET
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IDEOL
Original Assignee
IDEOL
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Filing date
Publication date
Application filed by IDEOL filed Critical IDEOL
Priority to HRP20220395TT priority Critical patent/HRP20220395T1/hr
Priority to PL18737658T priority patent/PL3635180T3/pl
Publication of EP3635180A1 publication Critical patent/EP3635180A1/de
Application granted granted Critical
Publication of EP3635180B1 publication Critical patent/EP3635180B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C1/00—Dry-docking of vessels or flying-boats
    • B63C1/02—Floating docks
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated

Definitions

  • the present invention relates to the field of shipbuilding and more specifically that of the launching of structures intended to float in water.
  • Launching is a critical step after the construction or repair, on dry ground, of a structure intended to float in water, such as for example a ship or a floating platform. This transition from solid support on land to floating in the water normally needs to be carefully managed to avoid damage to the lowered structure.
  • the person skilled in the art thus knows, for example, launching from an inclined plane, as described in the Japanese patent application publication JP S55-59226 , vertical launching using cranes or lifts, as described in publications KR 2009 0011697 , KR 10 0642343 , FR 1 385 516 , GS 181 576 Where US 7,419,329 , and launching in a flood-prone dry dock.
  • these methods generally require heavy, costly and relatively infrequent infrastructures.
  • Russian inventor's certificates SU 1030299 A and SU 1273293 A1 have disclosed methods for launching a floating platform which may comprise the steps of loading the platform onto a pontoon floating in the water, placing pillars of supports connected to the platform, while the latter rests on the pontoon floating in the water, lifting the platform on the support pillars, withdrawing the pontoon and lowering the platform, still supported by the support pillars, until that the platform floats in the water.
  • the present invention aims to remedy these drawbacks, in particular by proposing a method for launching a structure intended to float in water, which makes it possible to overcome local conditions, as well as powerful lifting means. .
  • this method comprises the steps of loading the structure on a floating pontoon in the water, placing at least one support pillar under water, connected to the structure, while the structure rests on the pontoon floating in the water, withdrawing the pontoon while the structure is supported by the at least one support pillar supported underwater, and lowering the structure, supported still by the at least one support pillar, until the structure floats in the water, may further comprise a stage of lowering the pontoon, vertically separating the pontoon from the structure, while the structure is supported by the at least one support pillar bearing under water and before the step of removing the pontoon.
  • the at least one support pillar is removably connected to the structure, and the method then also includes a step of separating the at least one support pillar from the structure once the structure is floating in the water. It may thus be possible to reuse the at least one support pillar for launching other structures.
  • the at least one support pillar can be connected to the structure through a location for fixing an anchor line on the structure. Thus, this location can offer a dual use, for launching and for the subsequent anchoring of the structure after it has been launched.
  • the method can also comprise a step of connecting the at least one support pillar to the structure before the underwater bearing of the at least one support pillar.
  • the pontoon is lowered relative to its waterline during the step of lowering the pontoon.
  • the pontoon can be ballasted to perform the step of lowering the pontoon.
  • the water level can drop during the step of lowering the pontoon.
  • the water level can be lowered by the tide during the lowering of the pontoon. It is thus possible to make use of the natural phenomenon of the tides, rather than complex devices or installations, to vertically separate the pontoon from the structure supported by the at least one support pillar, so as to allow its subsequent withdrawal.
  • a hydraulic and/or mechanical cylinder for vertical actuation can be interposed between the au at least one support pillar and the structure to thereby actuate a relative vertical displacement of the support pillar with respect to the structure.
  • the structure may be a floating platform, such as for example a floating drilling or exploration platform or a floating platform for exploiting renewable energies with at least one wind or tidal turbine.
  • the steps of a method for launching a structure 1 are illustrated in the figures 1 to 8
  • the structure 1 can be, as in the example illustrated, a floating platform like the one disclosed in FR 2 970 696 B1 , but could alternatively be for example a ship. It may have been assembled and/or built on site, for example from modules prefabricated elsewhere and transported on site.
  • a first step illustrated on the figure 1 one can proceed to the loading of the structure 1 on a pontoon 10. Its loading can proceed, as illustrated, on wheels or rollers 11, possibly placed on rails.
  • a loading surface 12 of the pontoon 10 can be at substantially the same level, in this first step, as the surface 13 of the ground at the adjacent shore 14, from which the structure 1 is loaded.
  • support pillars 2 can be connected to the structure 1 by fixings 3, which can be removably fixed on, for example, slots 5 for fixing anchor lines on this structure 1.
  • the support pillars 2 can be movable at least vertically relative to the bindings 3.
  • cylinders 4 can be interposed between the bindings 3 and the support pillars 2.
  • the cylinders 4 can be hydraulic cylinders, and in particular water cylinders, as illustrated for example in the figure 10A , with a piston 41 secured to the attachment 3 received in a sliding manner in a cylinder 42 formed in the support pillar 2 and able to receive and evacuate pressurized water through a pipe 43, with possibly restricted flow and able to be equipped a valve 44 which can be opened to allow the passage of water in either direction in order to raise or lower the support pillar 2 relative to the attachment 3 or closed to fix the position of the pillar of support 2 with respect to the fixing.
  • the cylinders 4 can be mechanical cylinders, each comprising for example, as illustrated in the figure 10B , one or more pinions 45, associated with one of the binding 3 and the support pillar 2, and a rack 46, associated with the other of the binding 3 and the support pillar 2.
  • the pinions 45 can be coupled to at least one motor 47 and a brake 48 for, respectively, actuating or braking, or even blocking a relative vertical movement of the support pillar 2 with respect to the binding.
  • a third step illustrated in the picture 3 , one can proceed to lower the support pillars 2 until they rest, underwater 15, on the seabed 16.
  • This lowering can be simply driven by gravity, or actuated by the cylinders 4, but in any case its speed can be restricted through these cylinders 4.
  • Once the support pillars 2 bear under water 15, their relative position with respect to the fixings 3 and therefore with respect to the structure 1 can be fixed, for example by blocking the cylinders 4, so that the support of the support pillars 2 under water 15 can support the structure 1.
  • the pontoon 10 can be lowered under the structure 1, now supported, through the fixings 3, by the support pillars 2 resting under water 15, so as to vertically separate the pontoon 10 from the structure.
  • the pontoon 10 can be lowered relative to its waterline 17. This can be done for example by ballasting the pontoon 10, with solid or liquid ballast, so as to increase its displacement.
  • the water level 15 descends, so as to lower the pontoon 10 even if its level relative to its waterline 17 is maintained.
  • This lowering of the water level can be obtained by a set of locks, but also, in a simpler way and without calling on particular infrastructures, it can be the effect of the tides: the support pillars 2 could therefore be lowered and bear under water 15 during high tide, and the pontoon 10 descend and deviate vertically from the structure 1 at low tide.
  • the support pillars 2 could therefore be lowered and bear under water 15 during high tide, and the pontoon 10 descend and deviate vertically from the structure 1 at low tide.
  • these two aspects are not mutually exclusive, and it would also be possible to combine them, for example by ballasting the pontoon 10 to amplify its descent due to the tide.
  • a sufficient vertical gap has been obtained between the pontoon 10 and the structure 1, now supported by the support pillars 2, one can proceed to a fifth step, as in the example illustrated in the figure 5 , in which the pontoon 10 is removed. The space under the pontoon 10 being thus freed, it is then possible to proceed to a sixth step, as in the example illustrated in the figure 6 , in which the structure 1 is lowered until it floats in the water 15. Like the lowering of the support pillars 2, this lowering of the structure 1 can be at least partially driven by gravity, or actuated by jacks 4, but in any case its speed can be restricted through these jacks 4.
  • this sixth step can be followed by a seventh step, as in the example illustrated in the Figure 7A , in which the support pillars 2 can still be raised higher relative to the structure 1, for example by using the jacks 4, so as to disengage the support pillars 2 from the seabed 16 and thus allow the free flotation of the structure 1 while facilitating a subsequent separation of the support pillars 2 from the structure 1.
  • a rise in the level of the water 15, for example by the return of the high tide can also be used to effect this disengagement of the support pillars 2 with respect to the seabed 16, as in the example illustrated in the figure 7B .
  • an eighth step can be carried out, as in the example illustrated in the figure 8 , in which the fasteners 3 can be detached from the structure 1, and the support pillars 2 thus be separated from the structure 1.
  • the structure 1 can thus float freely in the water, and be moved, for example by towing, towards the wide, where it can be anchored by anchor lines 20 fixed on the locations 5 for fixing anchor lines, as in the example illustrated in the figure 9 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Ocean & Marine Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Foundations (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Claims (9)

  1. Stapellaufverfahren einer Struktur (1), die zum Schwimmen im Wasser (15) bestimmt ist, aufweisend die folgenden Schritte:
    Laden der Struktur (1) auf einen im Wasser schwimmenden Ponton (10),
    Abstützen, unter dem Wasser (15), mindestens eines mit der Struktur (1) verbundenen Stützpfeilers (2), während die Struktur (1) auf dem im Wasser (15) schwimmenden Ponton (10) ruht,
    Entfernen des Pontons (10), während die Struktur (1) von dem mindestens einen Stützpfeiler (2) gestützt wird, der sich unter dem Wasser (15) abstützt, und
    Absenken der Struktur (1), die noch von dem mindestens einen Stützpfeiler (2) gestützt wird, bis die Struktur (1) im Wasser (15) schwimmt, und
    dadurch gekennzeichnet, dass der mindestens einen Stützpfeiler (2) lösbar mit der Struktur (1) verbunden ist und dass das Verfahren ferner umfasst:
    einen Schritt des Absenkens des Pontons (10), bei dem der Ponton (10) vertikal zur Struktur (1) freigegeben wird, während die Struktur (1) von dem mindestens einen Stützpfeiler (2), der sich unter dem Wasser (15) abstützt, vor dem Entfernen des Pontons (10) gestützt wird, und
    einen Schritt des Trennens des mindestens einen Stützpfeilers (2) von der Struktur (1), sobald die Struktur (1) im Wasser schwimmt.
  2. Stapellaufverfahren nach Anspruch 1, wobei der mindestens einen Stützpfeiler (2) über eine Stelle (5) zur Befestigung einer Verankerungsleine an der Struktur (1) mit der Struktur (1) verbunden ist.
  3. Stapellaufverfahren nach einem der vorangehenden Ansprüche, umfassend ferner einen Schritt des Verbindens des mindestens einen Stützpfeilers (2) an der Struktur (1) vor der Abstützung des mindestens einen Stützpfeilers (2) unter dem Wasser (15).
  4. Stapellaufverfahren nach einem der vorangehenden Ansprüche, wobei der Ponton (10) im Verhältnis zu seiner Wasserlinie (17) beim Schritt des Absenkens des Pontons (10) abgesenkt wird.
  5. Stapellaufverfahren nach Anspruch 4, wobei der Ponton (10) ballastiert wird, um den Schritt des Absenkens des Pontons (10) durchzuführen.
  6. Stapellaufverfahren nach einem der vorangehenden Ansprüche, wobei der Stand des Wassers (15) während des Schritts des Absenkens des Pontons (10) sinkt.
  7. Stapellaufverfahren nach Anspruch 6, wobei die Gezeiten den Stand des Wassers (15) während des Absenkens des Pontons (10) senken.
  8. Stapellaufverfahren nach einem der vorangehenden Ansprüche, wobei mindestens ein Hydraulik- und/oder mechanischer Heber (4) zur vertikalen Betätigung zwischen dem mindestens einen Stützpfeiler (2) und der Struktur (1) zwischengestellt ist.
  9. Stapellaufverfahren nach einem der vorangehenden Ansprüche, wobei die Struktur (1) eine schwimmende Plattform ist.
EP18737658.7A 2017-06-06 2018-06-06 Startverfahren Active EP3635180B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
HRP20220395TT HRP20220395T1 (hr) 2017-06-06 2018-06-06 Postupak porinuća
PL18737658T PL3635180T3 (pl) 2017-06-06 2018-06-06 Sposób wodowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1754994A FR3067047B1 (fr) 2017-06-06 2017-06-06 Procede de mise a l'eau
PCT/FR2018/051301 WO2018224770A1 (fr) 2017-06-06 2018-06-06 Procede de mise a l'eau

Publications (2)

Publication Number Publication Date
EP3635180A1 EP3635180A1 (de) 2020-04-15
EP3635180B1 true EP3635180B1 (de) 2022-01-12

Family

ID=59930476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18737658.7A Active EP3635180B1 (de) 2017-06-06 2018-06-06 Startverfahren

Country Status (12)

Country Link
US (1) US10967942B2 (de)
EP (1) EP3635180B1 (de)
JP (1) JP7164551B2 (de)
KR (1) KR102630564B1 (de)
CN (1) CN110719981B (de)
ES (1) ES2910189T3 (de)
FR (1) FR3067047B1 (de)
HR (1) HRP20220395T1 (de)
PL (1) PL3635180T3 (de)
PT (1) PT3635180T (de)
SG (1) SG11201911651YA (de)
WO (1) WO2018224770A1 (de)

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FR3067047B1 (fr) * 2017-06-06 2019-07-26 Ideol Procede de mise a l'eau
CN111663512A (zh) * 2020-06-24 2020-09-15 包景全 一种基于齿轮的节能环保型船舶提升设备
KR102573064B1 (ko) * 2021-12-24 2023-09-01 현대건설주식회사 딥러닝을 이용한 플로팅 도크가 필요 없는 케이슨 진수 장치 및 방법
CN114148483B (zh) * 2021-12-30 2023-07-18 武昌船舶重工集团有限公司 一种用于设备进舱的辅助工装

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Also Published As

Publication number Publication date
SG11201911651YA (en) 2020-01-30
CN110719981B (zh) 2022-04-19
FR3067047A1 (fr) 2018-12-07
PL3635180T3 (pl) 2022-05-02
PT3635180T (pt) 2022-04-07
KR102630564B1 (ko) 2024-01-29
ES2910189T3 (es) 2022-05-11
HRP20220395T1 (hr) 2022-05-13
US10967942B2 (en) 2021-04-06
US20200115014A1 (en) 2020-04-16
FR3067047B1 (fr) 2019-07-26
EP3635180A1 (de) 2020-04-15
JP2020522429A (ja) 2020-07-30
CN110719981A (zh) 2020-01-21
WO2018224770A1 (fr) 2018-12-13
KR20200015935A (ko) 2020-02-13
JP7164551B2 (ja) 2022-11-01

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