EP0046418A1 - Procédé d'ancrage et dispositif de fondation d'une plateforme en particulier mobile - Google Patents

Procédé d'ancrage et dispositif de fondation d'une plateforme en particulier mobile Download PDF

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Publication number
EP0046418A1
EP0046418A1 EP81401100A EP81401100A EP0046418A1 EP 0046418 A1 EP0046418 A1 EP 0046418A1 EP 81401100 A EP81401100 A EP 81401100A EP 81401100 A EP81401100 A EP 81401100A EP 0046418 A1 EP0046418 A1 EP 0046418A1
Authority
EP
European Patent Office
Prior art keywords
box
caisson
seabed
platform
passage
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.)
Ceased
Application number
EP81401100A
Other languages
German (de)
English (en)
French (fr)
Inventor
Francis Raymond Claude Cour
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tractebel Engineering SA
Original Assignee
Coyne et Bellier Bureau dIngenieurs Conseils SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Coyne et Bellier Bureau dIngenieurs Conseils SA filed Critical Coyne et Bellier Bureau dIngenieurs Conseils SA
Publication of EP0046418A1 publication Critical patent/EP0046418A1/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/52—Submerged foundations, i.e. submerged in open water
    • 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
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/006—Platforms with supporting legs with lattice style supporting legs
    • 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
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0078—Suction piles, suction cans
    • 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
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0086—Large footings connecting several legs or serving as a reservoir for the storage of oil or gas

Definitions

  • the subject of the present invention is a platform, in particular mobile, in particular of the "self-elevating" type, intended to rest on an underwater bottom, as well as a foundation device particularly suitable for equipping a such a platform, and also relates to a method for anchoring and releasing such a platform.
  • Platforms each resting on an underwater bottom by means of at least one pile secured to a foundation device, have been used for many years, in particular for the purposes of research, drilling and production on oil fields at sea, commonly known by the English term "off-shore”.
  • foundation devices Different types are currently used. Certain platforms rest on piles terminated by substantially cylindrical bases, or boxes, the underside of which is conical, these devices being usually designated by the English expression "spud cans”.
  • Another type of arrangement tif of foundation consists of a single sole or closed box of dimensions comparable to those of the platform, which is then usually qualified by the English terms of "mat-supported”.
  • these foundation devices either rest on the bottom, or are sunk into the seabed.
  • the raft box possibly partitioned, is provided with anchoring knives extending around the circumference of the raft and forming a continuous wall in extension or in the vicinity of the side walls of the caisson, the partitioning of the raft by internal knives, making a compartmentalization, which could possibly be provided.
  • the anchoring knives After transfer of the caisson by flotation to the site, then total immersion and descent of the caisson onto the seabed by ballasting, the anchoring knives cross the permeable sandy surface layer of the bottom, then penetrate into the clayey waterproof layer under adjacent, and cooperate with the raft or closed bottom of the caisson to provide an enclosed space between the raft, the knives and the clay impermeable layer, in which a depression is created to ensure the further sinking of the caisson and its anchoring by suction cup effect, obtained by suction and removal of water in the permeable surface sandy layer.
  • these foundation devices only allow anchoring on the seabed having layers of stratification of small thickness compared to the dimensions of the raft and comprising at least one sandy-permeable surface layer, resting on a layer waterproof clay. This constitutes a significant limitation in the use of these devices although it is proposed, in the aforementioned French patent, to remedy this drawback by depositing a layer of sand having the required surface on the bottom before immersion of the box.
  • the height of the knives much less than the thickness of the box, must be greater than the thickness of the surface sandy layer.
  • the dimensioning of the foundation device is therefore determined according to the thickness of the sandy layer on the site. For these two reasons, such devices cannot equip mobile platforms, in particular jack-ups, intended for changing sites, but only fixed platforms; except if one artificially reconstructs a suitable seabed on each of the successive sites, intended to receive a mobile platform, in particular self-elevating, and which would not be naturally suitable, which represents civil works important, long and expensive. It should be noted that this backfilling is not always possible, due to the depth on the chosen sites.
  • Such boxes can be released from the seabed and repositioned on the latter by reinjecting pressurized air, which supposes that the boxes are previously at least partially emptied of their solid materials.
  • pressurized air which supposes that the boxes are previously at least partially emptied of their solid materials.
  • a cover of its upper wall is opened and the bottom materials are removed from the structure, which fill it at least partially.
  • a chamber air is reconstituted air.
  • the cover is closed, and the vacuum is redone in the hollow structure to allow a new depression.
  • a subject of the invention is also mobile platforms, in particular of the self-elevating type, provided with a foundation device according to the invention, and capable of being anchored in the underwater ford or released from this bottom. by implementing methods which are also the subject of the invention.
  • the platform according to the invention intended to rest on a seabed via at least one integral stack of fo n device - dation is characterized in that it comprises at least one box with an open bottom, with substantially vertical side walls possibly compartmentalized by internal partitions which are also substantially vertical and the upper part of which has at least one passage orifice, if necessary for each compartment, to which a pipe preferably connected a valve for a liquid medium expelled from the caissons when the latter plunges through its side walls into the seabed to anchor the platform, or penetrating into the caisson when the latter emerges from the bottom submarine to ensure the release of the platform.
  • the foot of each pile, or the common foot affects the shape of a core barrel. This immediately results in a significant advantage.
  • the driving force depends only on the "pointed” surface of the vertical walls of the box and the friction along its vertical walls, since the liquid medium such as water from the surrounding aquatic medium, which has been trapped during the descent of the box, can escape through the hole (s) provided on its upper face.
  • the invention it is possible to provide a single valve on a single pipe into which open different branches connected to the different passage orifices, or even a pipe and a valve for each passage orifice.
  • a single valve on a single pipe into which open different branches connected to the different passage orifices, or even a pipe and a valve for each passage orifice.
  • Another advantage of the present invention is that it is possible to increase the penetration of a foundation device into the seabed, that is to say ser the depression.normally obtained under the simple effect of the weight of the structure, thanks to means, connected to the passage orifices via the pipes which are connected thereto, and making it possible to ensure in the box a relative depression relative to the hydrostatic pressure on the seabed.
  • the device according to the invention advantageously comprises means, also connected to the through orifices via the pipes which are connected to it, and making it possible to ensure in the box a relative overpressure relative to the hydrostatic pressure on the seabed.
  • the foundation device is thus released from the seabed by reaction on the latter.
  • the load which is applied on the piles can be of 100 tonnes for example, but the surface of the whole of the feet can itself be of the order of approximately 100 m 2 , so that overpressures or relatively low relative pressures make it possible to obtain significant operating forces.
  • a platform according to the invention is such that all of its piles are integral with a foundation device comprising a single box compartmentalized by vertical internal partitions, with open bottom, each compartment of which has a passage orifice 'to which a pipe fitted with a valve is connected.
  • a platform according to the invention is such that each stack corresponds to a box with an open bottom of a foundation device, the stack of which is integral, each box having at least one passage orifice to which a pipe fitted with a valve is connected.
  • an expandable hydraulic chamber delimited by an impermeable membrane retained on the internal face of the upper wall of the box, and / or on the vertical walls and partitions of the box, is provided inside the box or each of its compartments, and can be drained or filled, at least partially by the passage opening (s), in order to respectively control the insertion of the box into the seabed or its release from it.
  • mobile platforms in particular of self-elevating type, that is to say whose piles are intended to support a barge on which they are mounted movable in vertical direction, are characterized in that the valves are mounted on the barge.
  • these valves are preferably connected to a pumping group, also mounted on the barge, and acting as means ensuring a vacuum or an overpressure in the box or boxes.
  • the method of anchoring a platform according to the invention which consists, after having brought it on the site, to cause the immersion of its foundation device until the box or boxes which constitute come into contact with the seabed through the lower end of the vertical walls, is characterized in that it then consists in controlling the flow rate of passage through the orifices of the upper wall of the box or boxes and / or the pressure in this or these caissons to control the speed and / or the depth of the depression as well as the attitude of the caisson (s) in the seabed, then to close the passage openings when the desired depression is obtained.
  • the method according to the invention also consists in producing a relative depression inside the box or boxes.
  • the method according to the invention consists, before the penetration of the caisson (s) begins in the underwater bottom, in filling it or them with a muddy environment, then to control the exit of this muddy environment out of the box (es) through the passage orifices to control the sinking.
  • each caisson of the foundation device of a platform is provided with an expandable hydraulic chamber
  • the method according to the invention is characterized in that it further consists in filling each expandable hydraulic chamber with a liquid medium for immersion of the foundation device, then to control the exit of the liquid medium out of each chamber to control the sinking.
  • the method according to the invention consists in injecting a liquid medium through the orifices of passage of the caisson (s), in order to develop in this or these a relative hydraulic overpressure liable to raise the caisson (s) relative to the seabed, then to control this overpressure to control the speed and / or the amplitude of the clearance. of the box (es).
  • each caisson is equipped with an expandable hydraulic chamber, a liquid medium is injected into each chamber, the expansion of which is controlled to ensure controlled release of the caisson from the seabed.
  • a foundation device comprising an improved embodiment of an open bottom box, with vertical side walls, optionally compartmentalized by vertical partitions, and the upper wall of which has at least one passage orifice for a liquid medium expelled from the caisson (s) out of the depression in the seabed, or penetrating into the caisson (s) when the bottom is disengaged, at least one body with variable volume being according to the invention, retained in each box, if necessary in each of its compartments, and this body being compressed during insertion and / or expanded during release.
  • variable volume body is constituted by a expandable hydraulic chamber, delimited by an impermeable membrane fixed on the internal face of the upper wall and / or on the vertical walls and partitions of the box or boxes, and in communication with the through orifices.
  • FIG. 1 it can be seen that the barge 1 of the mobile platform, in particular self-elevating platform, is supported by piles 2 of lattice, which rest on a single box 3, open at its lower part, and which has at its upper wall, a set of passage orifices 3 ', to which pipes 7 are connected provided with valves 4, advantageously controlled from barge 1.
  • the barge 1 itself carries means 6 for drilling or production.
  • the box 3 arrives on the surface A, from the seabed, the vertical side walls 5 of the box 3 penetrate into it, and the initially trapped water escapes through the through holes 3 'and the pipes 7 , as long as they remain open.
  • the valves 4 are closed, the water, which is possibly still trapped in the box 3, remains blocked inside the latter, and a downward movement of the latter is immediately stopped.
  • the bearing capacity of the foundation is at this time equal to that of a sole of the same section, founded on the lower level reached by the caisson 3, and takes a value greater than the force necessary for the depression of the caisson in the case where the valves 4 are open.
  • FIG. 1 therefore represents either the caisson during its sinking into the seabed, or at the end of sinking into an intermediate position, the valves 4 being closed while the caisson has not completely sunk into the ground .
  • each of the stacks 2 of the platform is mounted on an individual box 3, the upper face of which has two passage orifices 3 ′, without any pipe or valve being provided.
  • valves 4 are arranged on the barge 1, and each connected on the one hand to several passage orifices 3 ′ of the upper wall of the box 3 , by pipes 7 and on the other hand, to a pumping group 12, which makes it possible either to produce a vacuum inside the box 3, to promote the insertion of the latter, or to produce an overpressure in the box 3 to allow its release from the seabed.
  • each stack 2 is supported by an individual box 3, the upper face of which is placed in communication, by the pipes 7 and 8, each connected to a passage orifice 3 ′, with the valves 4 carried by the barge 1.
  • these valves 4 are preferably connected, as before, to a pumping group (not shown).
  • FIG. 5 there is shown in Figure 5, in top view, a box according to the invention, circular and compartmentalized.
  • This box is divided into sectors by vertical solid edges 9 and 10, said sectors themselves being substantially divided into two parts by a vertical solid crown 11. This division is carried out for reasons of obvious mechanical resistance.
  • Each of the compartments thus formed is provided, as explained above, with a passage orifice 3 'to which is connected a pipe provided with a valve, advantageously controlled from the barge 1. This allows, by appropriate control of the valves, to ensure uniform penetration of the box.
  • the anchoring on the one hand, and the release or release on the other hand of the various platforms, the foundation devices of which have just been described with reference to FIGS. 1 to 5, are produced by the implementation of 'A method consisting respectively, for anchoring, immersing the foundation devices and then controlling the output flow through the passage orifices 3' and / or the pressure in the box (es) 3, which can be a vacuum, for control the speed and / or depth of the darkly (and if necessary favor the latter) as well as the altitude of the casing (s) 3, then to close the passage orifices 3 ', when the desired insertion is obtained, and, for the release, to inject a liquid medium, such as water from the ambient environment, in the caisson (s) 3, through the passage orifices 3 ', and to develop in each caisson 3 a hydraulic overpressure to lift the latter relative to the seabed, then to pilot this overpressure to control the speed and / or the amplitude of the clearance of the box 3 out of the bottom.
  • variable volume body is retained in the caisson 3 or inside each of the compartments of a caisson 3, and this body can contract at starting from an initial state given during the insertion of the box into the bottom, controlling its contraction or reduction in volume possibly allowing control of the insertion, in speed, depth and / or altitude.
  • This body can be consumable and, possibly, destroyed when the box is pushed in, the release of which can subsequently be ensured by injection of a liquid medium (water or mud), as explained above, but this body can also be of a structure allowing it to expand, or to increase in volume, from another given initial state, in order to allow the release of the box, controlled by the control of its increase in volume, this second initial state given may be the state in which the body is at the end of the previous depression.
  • a liquid medium water or mud
  • FIG 6 there is shown schematically a first embodiment of such a body of variable volume; this body is constituted by an expandable hydraulic chamber, delimited by a waterproof membrane 12, flexible and deformable, closed except at the level of an opening by which the chamber is in communication with the orifice 3 passage 3 'of a box 3.
  • the membrane is attached, for example by adhesion, vulcanization, bonding or any other known suitable means, to the lower or internal face, relative to the box 3, of the upper wall of the latter.
  • the sealed variable-volume chamber thus placed in the box can be filled with a liquid, which can be water pumped into the ambient environment or a different liquid to prevent corrosion of the pumping unit, for example, in order to cause the 'immersion of the box 3, when anchoring the platform, then the exit of this liquid through the passage orifice 3' can be controlled, when the side walls 5 of the box 3 are pushed into the bottom submarine, in order to control this sinking.
  • a liquid which can be water pumped into the ambient environment or a different liquid to prevent corrosion of the pumping unit, for example, in order to cause the 'immersion of the box 3, when anchoring the platform, then the exit of this liquid through the passage orifice 3' can be controlled, when the side walls 5 of the box 3 are pushed into the bottom submarine, in order to control this sinking.
  • the injection of this liquid into the chamber at least partially emptied on the occasion of a prior depression, to develop an overpressure relative to the hydrostatic pressure.
  • the chamber increases in volume by pressurizing the materials occupy
  • This embodiment has the advantages that the control circuit liquid is isolated by the membrane 12 from the ambient medium if the pipes 7 open into reservoirs provided for this purpose on the surface, on the barge 1 for example, and on the other hand, it is possible, by emptying this liquid and filling the chamber with a pressurized gas, to ensure the movements of the box 3 alone, or associated with a battery 2, or with the barge 1, by flotation if necessary.
  • FIG. 7 there is shown a box 3 compartmentalized by the cooperation of vertical partitions 11 with the side and vertical walls 5 of the box 3.
  • a pipe 7 opens, through a passage opening 3 'in.
  • the operation of this box 3 and its advantages are in all respects similar to those of the box shown in FIG.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Revetment (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
EP81401100A 1980-07-09 1981-07-08 Procédé d'ancrage et dispositif de fondation d'une plateforme en particulier mobile Ceased EP0046418A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8015241 1980-07-09
FR8015241A FR2486562A1 (fr) 1980-07-09 1980-07-09 Dispositif de fondation pour structure, telle qu'une plate-forme, notamment auto-elevatrice, reposant sur un fond sous-marin, et plates-formes de ce type

Publications (1)

Publication Number Publication Date
EP0046418A1 true EP0046418A1 (fr) 1982-02-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401100A Ceased EP0046418A1 (fr) 1980-07-09 1981-07-08 Procédé d'ancrage et dispositif de fondation d'une plateforme en particulier mobile

Country Status (7)

Country Link
EP (1) EP0046418A1 (enrdf_load_stackoverflow)
BR (1) BR8104399A (enrdf_load_stackoverflow)
ES (1) ES8302153A1 (enrdf_load_stackoverflow)
FR (1) FR2486562A1 (enrdf_load_stackoverflow)
GB (1) GB2079826A (enrdf_load_stackoverflow)
NO (1) NO812313L (enrdf_load_stackoverflow)
OA (1) OA06851A (enrdf_load_stackoverflow)

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WO2001071105A1 (en) * 2000-03-23 2001-09-27 Bruno Schakenda Method for establishing a foundation in a seabed for an offshore facility and the foundation according to the method
CN100432343C (zh) * 2005-11-28 2008-11-12 天津大学 横跨并保护海底管线的筒型基础海堤结构及安装方法
CN104164887A (zh) * 2013-05-17 2014-11-26 颜可仁 大型深水预制承台安装装置
CN104164890A (zh) * 2013-05-17 2014-11-26 颜可仁 大型深水预制承台安装装置
CN109056772A (zh) * 2018-08-29 2018-12-21 中国铁建港航局集团有限公司 一种应用于大型预制构件快速顶升装置及方法
CN109795636A (zh) * 2019-03-13 2019-05-24 美钻深海能源科技研发（上海）有限公司 一种沉箱式钻井平台
CN112267976A (zh) * 2020-11-27 2021-01-26 中国船舶重工集团海装风电股份有限公司 装配式风电塔筒基础及制作方法
CN115977137A (zh) * 2022-12-20 2023-04-18 重庆大学 适用于山地风机格构式塔架的装配式基础及其装配方法

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NL193498C (nl) * 1985-04-18 1999-12-03 Marine Structure Consul Fundatiepaal voor een hefeiland.
US4720214A (en) * 1986-05-21 1988-01-19 Shell Offshore Inc. Mudmat design
NO872007L (no) * 1987-05-14 1988-11-15 Norwegian Contractors Fremgangsmaate for aa fundamentere en oppjekkbar plattform,samt anordning for utfoerelse av fremgangsmaaten.
GB2233017A (en) * 1989-04-18 1991-01-02 Earl & Wright Ltd Mudmat for offshore structures has buoyant elements
NO176408B (no) * 1991-02-19 1994-12-19 Norwegian Contractors Fremgangsmåte og anlegg for fundamentering av elementer på havbunnen
NO176215B (no) * 1992-09-24 1994-11-14 Norske Stats Oljeselskap Anordning for fundamentering av en fagverkskonstruksjon eller undervannsinstallasjon til havs
GB2341409B (en) * 1998-09-08 2000-11-01 John Stephen Baross Mechanical pipeline span prop with suction anchor foundation
US6652192B1 (en) * 2000-10-10 2003-11-25 Cso Aker Maritime, Inc. Heave suppressed offshore drilling and production platform and method of installation
NO20092238L (no) * 2009-06-10 2010-12-13 Seatower As Anordning ved installasjon av undervannsstruktur
ES2387366B1 (es) * 2009-12-11 2013-04-26 Grupo De Ingenieria Oceanica S.L. Plataforma de medidas para su instalacion en el agua
DE102009055175B4 (de) * 2009-12-22 2011-11-10 Ed. Züblin Ag Nachjustierbare Flächengründung, bevorzugt aufgelöst, für Offshore-Windenergieanlagen
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WO2012054808A1 (en) * 2010-10-21 2012-04-26 Conocophillips Company Leg ice shields for ice worthy jack-up drilling unit
RU2571782C2 (ru) * 2010-10-21 2015-12-20 Конокофиллипс Компани Самоподъемное буровое морское основание ледового класса с предотвращением обледенения газовым перемешиванием
US8870497B2 (en) 2010-10-21 2014-10-28 Conocophillips Company Ice worthy jack-up drilling unit with conical piled monopod
CN103168136B (zh) * 2010-10-21 2015-11-25 科诺科菲利浦公司 带有锥形打桩单脚架的抗冰型自升式钻井单元
CA2813426C (en) * 2010-10-21 2016-02-23 Conocophillips Company Ice worthy jack-up drilling unit with pre-loading tension system
GB2486216B (en) * 2010-12-07 2013-05-01 Alstom Technology Ltd Bistable valve and use thereof in the controlled submergence of a foundation structure
ITUD20120027A1 (it) * 2012-02-17 2013-08-18 I Co P S P A Elemento di sostegno per una struttura edile, particolarmente per una struttura, o piattaforma, a mare
GB201407991D0 (en) 2014-05-06 2014-06-18 Renewable Hydrocarbons Ltd Sub-sea piling

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FR2048861A5 (enrdf_load_stackoverflow) * 1969-05-28 1971-03-19 Algers Knut Borge
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FR2225030A5 (en) * 1973-04-04 1974-10-31 Kleber Colombes Sea drilling rig positioning assembly - has platform at base of columns positioned on feet resting on seabed
US3863457A (en) * 1972-06-13 1975-02-04 Selmer As Ing F Submarine foundation and offshore working platform
US3911687A (en) * 1972-05-02 1975-10-14 Olav Mo Foundation method for caissons
FR2335133A5 (fr) * 1973-03-05 1977-07-08 Sea Tank Co Procede et dispositif de fondation par depression en site aquatique

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GB288077A (en) * 1927-08-05 1928-04-05 William Henry Anderson Method of and means for sinking caissons and like structures
US2938353A (en) * 1954-12-27 1960-05-31 Shell Oil Co Submersible drilling barge
GB1088804A (en) * 1965-10-29 1967-10-25 Christiani & Nielsen As Support for subaqueous bases for marine structures, and method for erecting the same
FR2048861A5 (enrdf_load_stackoverflow) * 1969-05-28 1971-03-19 Algers Knut Borge
US3640075A (en) * 1969-10-16 1972-02-08 James H La Peyre Method of installing breakwater caissons
US3911687A (en) * 1972-05-02 1975-10-14 Olav Mo Foundation method for caissons
US3863457A (en) * 1972-06-13 1975-02-04 Selmer As Ing F Submarine foundation and offshore working platform
FR2335133A5 (fr) * 1973-03-05 1977-07-08 Sea Tank Co Procede et dispositif de fondation par depression en site aquatique
FR2225030A5 (en) * 1973-04-04 1974-10-31 Kleber Colombes Sea drilling rig positioning assembly - has platform at base of columns positioned on feet resting on seabed

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001071105A1 (en) * 2000-03-23 2001-09-27 Bruno Schakenda Method for establishing a foundation in a seabed for an offshore facility and the foundation according to the method
CN100432343C (zh) * 2005-11-28 2008-11-12 天津大学 横跨并保护海底管线的筒型基础海堤结构及安装方法
CN104164887A (zh) * 2013-05-17 2014-11-26 颜可仁 大型深水预制承台安装装置
CN104164890A (zh) * 2013-05-17 2014-11-26 颜可仁 大型深水预制承台安装装置
CN109056772A (zh) * 2018-08-29 2018-12-21 中国铁建港航局集团有限公司 一种应用于大型预制构件快速顶升装置及方法
CN109795636A (zh) * 2019-03-13 2019-05-24 美钻深海能源科技研发（上海）有限公司 一种沉箱式钻井平台
CN112267976A (zh) * 2020-11-27 2021-01-26 中国船舶重工集团海装风电股份有限公司 装配式风电塔筒基础及制作方法
CN115977137A (zh) * 2022-12-20 2023-04-18 重庆大学 适用于山地风机格构式塔架的装配式基础及其装配方法
CN115977137B (zh) * 2022-12-20 2024-06-11 重庆大学 适用于山地风机格构式塔架的装配式基础及其装配方法

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NO812313L (no) 1982-01-11
GB2079826A (en) 1982-01-27
OA06851A (fr) 1983-02-28
BR8104399A (pt) 1982-03-30
FR2486562B1 (enrdf_load_stackoverflow) 1983-07-29
FR2486562A1 (fr) 1982-01-15
ES8302153A1 (es) 1983-02-01

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