EP2106997A1 - Verfahren und Gerät zur Bergung eines Wracks mit umweltschädlichem Material - Google Patents

Verfahren und Gerät zur Bergung eines Wracks mit umweltschädlichem Material Download PDF

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Publication number
EP2106997A1
EP2106997A1 EP08425214A EP08425214A EP2106997A1 EP 2106997 A1 EP2106997 A1 EP 2106997A1 EP 08425214 A EP08425214 A EP 08425214A EP 08425214 A EP08425214 A EP 08425214A EP 2106997 A1 EP2106997 A1 EP 2106997A1
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EP
European Patent Office
Prior art keywords
wreck
salvaging
hook
wall
section
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.)
Withdrawn
Application number
EP08425214A
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English (en)
French (fr)
Inventor
Diego c/o SAIPEM S.p.A. Lazzarin
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Saipem SpA
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Saipem SpA
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Filing date
Publication date
Application filed by Saipem SpA filed Critical Saipem SpA
Priority to EP08425214A priority Critical patent/EP2106997A1/de
Publication of EP2106997A1 publication Critical patent/EP2106997A1/de
Withdrawn legal-status Critical Current

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    • 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
    • B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
    • B63C7/16—Apparatus engaging vessels or objects

Definitions

  • the present invention refers to a method for salvaging a wreck containing an environmental hazardous material.
  • the present invention refers to a method for salvaging a wreck, which comprises at least a wreck section resting on a bed of a body of water and including a double-walled hull, which has an outer wall; an inner wall; and a plurality of stiffening ribs.
  • a method for salvaging a wreck of a sunken vessel is known from patent GB 140,040 .
  • the method disclosed in the above-identified patent includes the steps of making holes in the outer wall of the hull; fixing a numbers of taps to the outer wall by screwing bolts into the outer wall; and raising the wreck by means of lifting lines such as cables, ropes, chains connected to the taps.
  • patent application WO 03/009960 teaches to saw a submarine wreck in small sections by a cable saw operated by two cranes installed on respective vessels.
  • the cable saw is partially wound about the wreck, in particular the cable saw is in contact with the keel and the sides of the wreck.
  • the sawing of the wreck and the separation of wreck sections can determine sudden displacements of the wreck sections that are sometime unstably laid on the bed.
  • the environmental hazardous material can leak or loose into the surrounding and contaminate the water and the bed of the body of water.
  • One of the objects of the present invention consists in salvaging the wreck by reducing the risk of loosening the hazardous material onboard of the wreck.
  • Another object of the present invention consists in avoiding the collapse of the wreck during the lifting step.
  • a further object consists in avoiding or limiting to very localised and shallow areas of the bed the works for the preparation to elevation. This mitigates risks of slope soil sliding and undesired displacements of the wreck.
  • Another object consists in preventing a further pollution risk determined by parts falling down from wreck during lifting and hazardous material leaking from the wreck.
  • a method for salvaging a wreck containing an environmental hazardous material comprising at least a wreck section resting on a bed of a body of water and including a double-walled hull, which has an outer wall; an inner wall; and a plurality of stiffening ribs; the method comprising the steps of forming a number of recesses into the hull; hooking a number of hook assemblies to the hull at said recesses; and lifting the wreck section from the bed of the body of water through said hook assemblies.
  • the method according to the present invention does not require the use of bolts, which determine concentrated stresses and calls for a time consuming work to screw them into the outer wall.
  • the method according to the present invention does not require particular work on the bed of the body of water.
  • the present invention further relates to equipment for salvaging a wreck containing environmental hazardous material.
  • an equipment for salvaging a wreck containing an environmental hazardous material comprising at least a wreck section resting on a bed of a body of water and including a double-walled hull, which has an outer wall; an inner wall; and a plurality of stiffening ribs; the equipment comprising means for forming a number of recesses into the hull; means for hooking a number of hook assemblies to the hull at said recesses; and means for lifting the wreck section from the bed of the body of water through said hook assemblies.
  • FIG 1 with reference numeral 1 is indicated a wreck resting on a bed of a body of water, in particular on a sandy seabed.
  • the wreck 1 comprises two wreck sections 2 and 3 extending along respective axis A1 and A2.
  • the body of water is the sea and reference SL indicates the sea level.
  • Each one of the wreck sections 2 and 3 comprises a hull 4 comprising, in turn, a keel 5, and two sides 6.
  • the hull 4 is double-walled and comprises an outer wall 7, an inner wall 8; and a plurality of ring-shaped stiffening ribs 9.
  • Stiffening ribs 9 are evenly distributed about and along axis A1 respectively A2 and are arranged transversely to axis A1 respectively A2.
  • the wreck sections 2 and 3 contain an environmental hazardous material that could contaminate the water and the bed of the body of water.
  • the equipment for implementing the method for salvaging the wreck 1 comprises a vessel fleet 10; lifting equipment 11; an antipollution bag 12; and a number of operational apparatuses.
  • the vessel fleet 10 comprises a crane vessel 13; a floating dock barge 14; and a dredged sediments disposal barge 15.
  • the vessel fleet 10 may additional includes support vessel equipped with crane and not shown in the enclosed figures.
  • the crane vessel 13 is a large vessel, for example the SAIPEM 7000 or CASTORO 8 of company Saipem S.p.A., and has the purposes of lifting the wreck 1 by means of the lifting assembly 11 and remotely controlling the operational apparatuses.
  • the crane vessel is provided a high tonnage crane 16.
  • the floating dock barge 14 is a semisubmersible barge comprising a dock 17 for housing the wreck 1 without the need of pulling the wreck 1 out from the body water, and a crane 18.
  • the dredged soil disposal barge 15 is an ordinary disposal barge for disposing sediments dredged from the bed.
  • the lifting equipment 11 is operated mainly by crane 16 and its lifting line, preferably a cable, a chain or a rope, and comprises a spreader beam 19 having substantially the length of the wreck sections 2 and 3 to be lifted; a number of hook assemblies 20 ( figure 8 ); and a number of slings 21.
  • the spreader beam 19 comprises a pipe 22 provided with two end plates 23, each supporting two opposite sheaves 24 as better shown in figure 10 (only two sheaves 24 out of four are shown).
  • each hook assembly 20 comprises a hook 25, a buoyancy block 26, and a flexible elongated element, such as a cable or a rope or a chain, connecting the hook 25 to the buoyancy block 26.
  • the hook 25 is foldable and comprises two expandable clamps 27 and 28.
  • the lifting equipment includes height lifting assemblies 20.
  • the hook 25 is made in high strength steel and comprises two articulated portions to let the hook 25 to be folded and reduce its overall size.
  • the two portions are articulated trough a universal joint or a two swivel joint.
  • Clamps 27 and 28 are forced apart one from the other by mechanical or hydraulic springs so as to selectively allow them expanding from a rest position when the springs are released.
  • each sling 21 is wound to a respective sheave 24 and has two free ends suitable to be connected to two respective hook assemblies 20, in particular to two flexible elongated elements of the hook assemblies 20.
  • the spreader beam 19 is then connected to the lifting line of the crane 16 of the crane vessel 13 by four line sections, such as chain, cable, or ropes for joining the crane lifting line to the opposite ends of plates 23.
  • line sections such as chain, cable, or ropes for joining the crane lifting line to the opposite ends of plates 23.
  • the spreader beam 19 is used to elevate each wreck section 3, 4.
  • Each sling 21 is connected to the two adjacent hook assemblies 20 on the same side 4 spreading equally the load on them.
  • the spreader beam 19 is launched by the crane 16 with the four slings 21.
  • the antipollution bag 12 avoids or mitigates the risk of loosing debris during the wreck 1 lifting.
  • the antipollution bag 12 comprises a sheet 29, preferably a sheet of thick geotextile reinforced with steel wire mesh; a tubular sealed frame 30, preferably of steel having a rectangular shape (50 m x 10 m); and clump chains 31.
  • the peripheral edges of the sheet 29 are joined to the tubular sealed frame 30 and the clump chains 31 are attached to sheet 29 underneath the sheet 29 so as to confer to the sheet 29 a pocket configuration when the antipollution bag 12 is deployed into the body of water.
  • the tubular sealed frame 30 provides a positive buoyant pull of about 200kN to the antipollution bag 12 so that the antipollution bag 12 needs to be deployed on the seabed by clump weights 32 connected to the tubular sealed frame 30 by cables.
  • the operational apparatuses include a pair remotely operated vehicle (ROV) 33; an abrasive water jetting machine (AWJM) 34; a pneumatic dredger 35; a hook installation tool (HIT) 36 ( figure 6 ); and an interface skid (IS) 37 ( figure 6 ).
  • ROV remotely operated vehicle
  • AJAM abrasive water jetting machine
  • HPT hook installation tool
  • IS interface skid
  • the operational apparatuses includes also additional apparatuses and tools of know type and not shown in the enclosed figure.
  • additional apparatuses are ordinarily used in underwater operations and includes among others a positioning system.
  • the lifting points along the wreck 1 shall be identified with an indicative accuracy of about 0.2-0.5 m; this value ensures for a safe handling.
  • the position system is based on an underwater LBL array. In alternative, a ROV positioning equipment may be used.
  • Additional apparatuses and tools include grinders, cable cutters, saw disc cutters, brushes and hydraulic scissors; all the above mentioned tools are hydraulically powered through the ROV hot stab (not shown) and deployed in a basket (not shown).
  • Further auxiliary equipment includes ROV manipulator camera mounted on a bracket that can be easily handled by the ROV 33. This allows performing visual inspection far forward the ROV 33.
  • the ROV 33 is an underwater vehicle for example like the model Innovator of the company Saipem S.p.A.
  • the ROV 33 comprises a frame 38, an engine (not shown), and plurality of thrusters (not shown) to control the position of the vehicle into the body of water.
  • the ROV 33 is tethered to the crane vessel 13 ( figure 1 ) that controls the position and the operations of the ROV 33.
  • the frame 38 of the ROV is fitted with a multi-functions grabber (not shown) and a multi-functions manipulator 40.
  • the ROV 33 can be equipped with a plurality of tools and is provided with a male hot stab, and hoses bundle (both not shown), to power the tools with electric current and pressurized fluids.
  • the ROV 33 further includes a camera (not shown), to provide a visual inspection of the underwater scenario.
  • the abrasive water jetting machine 34 comprises an onboard station 41 arranged on the crane vessel 13; an abrasive water jetting tool 42; a buoyancy block 43; and a ballast chain 44 in order to allow having the tool 42 neutrally buoyant in water by adjusting the ballast chain 44.
  • the ROV 33 can precisely guide the tool 42 on the target points.
  • the abrasive water jetting tool 42 comprises a frame 45; a number of electromagnets 46 mounted on the frame for securing the tool to the outer wall 7; a nozzle 47 mounted on the frame 45 with three degree of freedom: the nozzle 47 can be remotely moved in a circle and can be adjusted both the circle radius and the depth. The position of the nozzle 47 is controlled through the ROV 33, which is stabbed on the abrasive water jetting tool 42.
  • the abrasive water jetting tool 42 is also provided with sensors and a camera, not shown, arranged on the nozzle 47.
  • the onboard station 41 includes substantially a pumping station for delivering the pressurised abrasive water to the abrasive water jetting tool 42 through a dedicated umbilical 48.
  • the umbilical 48 is fitted with an electric cable to power and carry signals to sensors and the camera, not shown, and mounted on the abrasive water jetting tool 42.
  • the pneumatic dredger 35 is, for example, of the type known under the commercial name of PNEUMA ® of the company Pneuma S.r.l. Via di Varlungo 59A - 50136 Firenze - Italy.
  • the pneumatic dredger 35 comprises a compressor 49 arranged on the disposal barge 15; a container 50 arranged at approximately at 70 m depth; and a suction hose 51 connected to the container 50.
  • the pneumatic dredger 35 makes use of the difference of pressure between the container 50 and the seabed to fill the container 60.
  • the compressor 49 pumps air into the container 50 for pushing the sediment up on the disposal barge 15.
  • a valve system governs the connection between the suction hose 51 and the container 50 and conduits connecting the compressor 49 and the disposal barge 15 to the container 50.
  • the pneumatic dredger 35 allows dredging sediments at very high density and it is suitable for environmental dredging where low turbidity and low spreading of contaminants are required.
  • the container 50 can be connected to more than one suction hose 51.
  • the final dredging solid concentration is defined by the minimum suctions dredging speed required to drag the soil eventually contaminated by heavy metals.
  • the dredging suction hose 51 is designed to be manoeuvred by using the ROV 33 ( figure 10 ) and includes a large mesh (not shown) on the intake (not shown) to prevent any clogging of the suction hose 51.
  • the hook installation tool 36 is operated by the remotely operated vehicle 33 and has the function of hooking the hook assemblies 20 to the hull 4.
  • the hook installation tool 36 is connected to the ROV 33 by means of the interface skid 37.
  • the ROV 33 needs to be fitted with an interface skid 37 to allow the mechanical connection to the hook installation tool 36.
  • the interface skid 37 is attached underneath the ROV 33 and is fitted with a docking probe, not shown, to mate with the hook installation tool 36.
  • the hook installation tool 36 comprises a clamp operating tool 52; a buoyancy block retainer 53, and a camera (not shown).
  • the main operational steps of the salvaging method includes the ordinary preparatory steps like the inspections; structural studies based on the cross checks between the information retrieved from inspections and the design data in many cases still available; FEM analyses; and laboratories analyses of samples of the structure of the wreck 1.
  • the current method is based on the principle of lifting separately each wreck section 2, 3 by anchoring the lifting equipment 11 at given lifting points along the structure of one of the wreck sections 2, 3 and lifting the wreck section 2, 3 as shown with reference to figure 10 .
  • the intervention procedure makes use of the equipment disclosed in the present descriptions and comprises the following main steps:
  • the selection of the lifting points depends on the size of the wreck 2. in general, the lifting points are selected along the hull 4 and, preferably along each side 6. In accordance with the preferred embodiment of the present invention, each side 6 has a number of lifting points equal to the number of lifting points of the of the opposite side 6.
  • the lifting points are evenly distributed along each side 6, and the lifting points are in an even number along each side 6.
  • the lifting points are eight for each wreck section 2 (four lifting points for each side 6).
  • each recess is formed by a first opening 54 into the outer wall 7; a second opening 55 into the inner wall 8; and a slit 56 along the outer wall 8.
  • the first and a second opening 54 and 55 are substantially aligned and the first opening 54 is larger than the second opening 55.
  • the first opening is a circular opening having a diameter of 400 m.
  • the slit 56 is directed upwardly and extends from the first opening 54 above the first opening 54.
  • the abrasive water jetting tool 42 is operated by a ROV 33 and positioned in a given lifting point.
  • the ballast chain 44 is adjusted to make the abrasive water jetting tool 42 neutral, then, the ROV 33 grabs and guides the abrasive water jetting tool 42 on the target. With reference to figure 2 , electromagnets 46 are then energised to secure it to the outer wall 8 of the wreck section 2.
  • the abrasive water jetting tool 42 is operated by feeding pressured water from the remote station 41 ( figure 1 ) and controlling the nozzle 47 position by using the ROV 33.
  • the tool 42 cuts the outer wall 7 along a circle (400 mm diameter) just in between two adjacent stiffening ribs 9 ( figure 5 ) and along a number of vertical and horizontal cuts (not shown) within the circle.
  • the electromagnets 46 are first de-energised, and, then, the tool 42 is recovered.
  • the ROV 33 with the aid of the auxiliary tools, not shown, tears up and cuts patches and removes all steel works between the outer wall 7 and the inner wall 8 to expose the inner wall 8.
  • the abrasive water jetting tool 42 is launched again, as before is installed on the lifting point location, and is operated by the ROV 33 to cut the inner wall 8 along a circle and a number of vertical and horizontal cuts (not shown) within the circle. Once the second opening 55 is cut the abrasive water jetting tool 42 is recovered. ROV 33 inspects the second opening 55 by using the ROV manipulator camera and eventually inserts the manipulator 40 into the second openings 55 to clean it. The above sequence is repeated for the remaining seven lifting points.
  • the nozzle 47 of the abrasive water jetting tool 42 is guided along a rectilinear path in order to cut a slit 56 into the outer wall 7 so as to complete the recess and determine the configuration show in figure 5 .
  • other ordinary cutting tools (not shown) can be used by the manipulator 40 to cut slit 56.
  • Two hook assemblies 20 are deployed on the bed by the crane vessel 13 together with a hook deployment frame not shown in the enclosed figures.
  • the ROV 33 docks on a hook assembly 20 and moves to install the hook assembly 20 in one of the recesses.
  • the insertion of the hook assembly 20 into a recess is assisted by a camera, not shown so as to arrange clamp 27 about an edge of the inner wall 8 at the opening 55.
  • the clamp operating tool 52 which is remotely controlled through ROV 33, releases the clamps 27 and 28 that are spaced apart and expand against opposite edges of the opening 55 in the inner wall 8 ( figure 7 ).
  • the ROV 33 provides also for operating the buoyancy block retainer 53 so as to release the buoyancy block 26.
  • the flexible elongated element connecting the buoyancy block 26 and the hook 25 has the tendency to assume a vertical configuration.
  • the ROV 33 provides for inserting each flexible elongated element into a respective slit 56. The operation is repeated for the insertion of the remaining hook assemblies 20 into the remaining seven recesses. Once all the hook assemblies 20 are hooked to the hull 4 of wreck section 2, two ROVs 33 are coupled to the suction nozzles of respective suction hoses 51 of the pneumatic dredger 35 for cleaning a target area for landing the antipollution bag 12.
  • the antipollution bag 12 is positioned by crane 16 with the sheet 29 in a folded configuration.
  • the clump weights 32 rest on the bed the antipollution bag 12 is released from the crane 16, the sheet 29 is unfolded, and the clump chain 31 arranged underneath the sheet 29 draws the sheet 29 so as to let the sheet 29 to assume a pocket configuration.
  • the next step consists in positioning the spreader beam 19 by means of crane 16 over the wreck section 2 and joining each lifting assembly 20 to a free end of a sling 21.
  • two adjacent hook assemblies 20 hooked on the same side 6 of the hull 4 are joined to the two opposite ends of a same sling 21.
  • the wreck section 2 can be lifted as shown in figure 9 .
  • the ROVs 33 operate the suction hose 51 so as to suck the soil in proximity of the wreck section 2, as shown in figure 10 , in order to ease the lifting and avoid a possible contamination determined by an eventual leakage of the hazardous material.
  • the wreck section 2 is lifted and positioned over the antipollution bag 12 and, thus, is inserted into the antipollution bag 12.
  • the two ROVs 33 are fitted with the wire cutters, not shown, so as to cut cables connecting clump weights 32 to the tubular sealed frame 30, which is provided with a positive buoyancy pull.
  • the sheet 29 wraps about the keel 5 and the sides 6 of hull 4.
  • the wreck section 2 is lifted below the sea level, and the antipollution bag 12 follows the wreck 2; the lifting is assisted by two ROVs 33.
  • the wreck section 2 and the antipollution bag 12 are moved into the dock 17 of the floating dock barge 14 in a configuration not shown in the enclosed drawing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)
EP08425214A 2008-04-02 2008-04-02 Verfahren und Gerät zur Bergung eines Wracks mit umweltschädlichem Material Withdrawn EP2106997A1 (de)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20091949A1 (it) * 2009-11-06 2011-05-07 Saipem Spa Metodo e impianto per supportare temporaneamente una massa di suolo suscettibile di franare
BE1022588B1 (nl) * 2015-04-02 2016-06-10 D.E.C.O. Nv Werkwijze en systeem voor het overbrengen van een fluïdum uit een onderwatercontainer
WO2020122735A1 (en) * 2018-12-14 2020-06-18 Bernt HELLESØE A shipwreck salvaging floating service base and a method of salvaging a shipwreck
CN114771773A (zh) * 2022-04-12 2022-07-22 交通运输部上海打捞局 大吨位沉船整体打捞方法
CN114889772A (zh) * 2022-04-12 2022-08-12 上海隧道工程有限公司 用于弧形梁顶管的发射架结构及其安装方法
CN114889775A (zh) * 2022-04-12 2022-08-12 交通运输部上海打捞局 弧形梁无接触整体打捞装置等比例试验用顶梁结构
CN114889777A (zh) * 2022-04-12 2022-08-12 交通运输部上海打捞局 弧形梁无接触整体打捞装置端板结构
CN114889774A (zh) * 2022-04-12 2022-08-12 交通运输部上海打捞局 无接触管幕法打捞装置
CN114889771A (zh) * 2022-04-12 2022-08-12 上海隧道工程有限公司 泥垫式弧形梁锁扣监控系统
CN115140273A (zh) * 2022-09-05 2022-10-04 中国海洋大学 一种用于辅助人员打捞的仪表装置
CN115180097A (zh) * 2022-07-25 2022-10-14 西南科技大学 一种水下无人航行器的捕获装置
CN117227936A (zh) * 2023-11-13 2023-12-15 自然资源部第一海洋研究所 一种基于rov海底打捞装置及打捞方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1328434A (en) * 1919-04-21 1920-01-20 Charles O Knudsen Ship-salvaging
GB146063A (en) * 1920-02-25 1920-07-08 Jesse Wilford Reno Improvements in apparatus for raising sunken ships and the like
GB140040A (en) 1919-03-07 1920-11-02 William Joseph Hagman Improved means to be employed in connection with the raising, or moving, of sunken vessels, or other submerged objects and for analogous purposes
GB154957A (en) * 1919-07-21 1920-11-22 Henry Deam Deam Method of and apparatus for salvaging ships
US1491984A (en) * 1923-02-01 1924-04-29 Sophia E Cowles Salvage device for sunken ships
EP0312619A1 (de) * 1987-10-17 1989-04-26 Menck Gmbh Trennvorrichtung zum Durchtrennen von rohrförmigen Bauwerksteilen
WO2003009960A1 (en) 2001-07-26 2003-02-06 Smit Engineering B.V. Saw, sawing installation and use of a saw
DE10345295A1 (de) * 2003-02-25 2004-09-09 Schulz, Günter Verfahren und Anordnung zum Heben und Bergen eines Schiffswracks, insbesondere eines großen, schweren Schiffswracks
FR2878226A1 (fr) * 2004-11-25 2006-05-26 Jean Claude Massal Procede et dispositif de recuperation de fluide contenu dans une cuve immergee

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB140040A (en) 1919-03-07 1920-11-02 William Joseph Hagman Improved means to be employed in connection with the raising, or moving, of sunken vessels, or other submerged objects and for analogous purposes
US1328434A (en) * 1919-04-21 1920-01-20 Charles O Knudsen Ship-salvaging
GB154957A (en) * 1919-07-21 1920-11-22 Henry Deam Deam Method of and apparatus for salvaging ships
GB146063A (en) * 1920-02-25 1920-07-08 Jesse Wilford Reno Improvements in apparatus for raising sunken ships and the like
US1491984A (en) * 1923-02-01 1924-04-29 Sophia E Cowles Salvage device for sunken ships
EP0312619A1 (de) * 1987-10-17 1989-04-26 Menck Gmbh Trennvorrichtung zum Durchtrennen von rohrförmigen Bauwerksteilen
WO2003009960A1 (en) 2001-07-26 2003-02-06 Smit Engineering B.V. Saw, sawing installation and use of a saw
DE10345295A1 (de) * 2003-02-25 2004-09-09 Schulz, Günter Verfahren und Anordnung zum Heben und Bergen eines Schiffswracks, insbesondere eines großen, schweren Schiffswracks
FR2878226A1 (fr) * 2004-11-25 2006-05-26 Jean Claude Massal Procede et dispositif de recuperation de fluide contenu dans une cuve immergee

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20091949A1 (it) * 2009-11-06 2011-05-07 Saipem Spa Metodo e impianto per supportare temporaneamente una massa di suolo suscettibile di franare
BE1022588B1 (nl) * 2015-04-02 2016-06-10 D.E.C.O. Nv Werkwijze en systeem voor het overbrengen van een fluïdum uit een onderwatercontainer
WO2020122735A1 (en) * 2018-12-14 2020-06-18 Bernt HELLESØE A shipwreck salvaging floating service base and a method of salvaging a shipwreck
CN114889771A (zh) * 2022-04-12 2022-08-12 上海隧道工程有限公司 泥垫式弧形梁锁扣监控系统
CN114889774B (zh) * 2022-04-12 2023-06-20 交通运输部上海打捞局 无接触管幕法打捞装置
CN114889775A (zh) * 2022-04-12 2022-08-12 交通运输部上海打捞局 弧形梁无接触整体打捞装置等比例试验用顶梁结构
CN114889777A (zh) * 2022-04-12 2022-08-12 交通运输部上海打捞局 弧形梁无接触整体打捞装置端板结构
CN114889774A (zh) * 2022-04-12 2022-08-12 交通运输部上海打捞局 无接触管幕法打捞装置
CN114771773A (zh) * 2022-04-12 2022-07-22 交通运输部上海打捞局 大吨位沉船整体打捞方法
CN114889777B (zh) * 2022-04-12 2023-07-21 交通运输部上海打捞局 弧形梁无接触整体打捞装置端板结构
CN114889772B (zh) * 2022-04-12 2023-07-21 上海隧道工程有限公司 用于弧形梁顶管的发射架结构及其安装方法
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CN114889775B (zh) * 2022-04-12 2023-06-16 交通运输部上海打捞局 弧形梁无接触整体打捞装置等比例试验用顶梁结构
CN114889772A (zh) * 2022-04-12 2022-08-12 上海隧道工程有限公司 用于弧形梁顶管的发射架结构及其安装方法
CN114771773B (zh) * 2022-04-12 2023-06-30 交通运输部上海打捞局 大吨位沉船整体打捞方法
CN115180097A (zh) * 2022-07-25 2022-10-14 西南科技大学 一种水下无人航行器的捕获装置
CN115140273A (zh) * 2022-09-05 2022-10-04 中国海洋大学 一种用于辅助人员打捞的仪表装置
CN117227936A (zh) * 2023-11-13 2023-12-15 自然资源部第一海洋研究所 一种基于rov海底打捞装置及打捞方法
CN117227936B (zh) * 2023-11-13 2024-02-20 自然资源部第一海洋研究所 一种基于rov海底打捞装置及打捞方法

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