WO2012158028A1 - Drague pourvue d'un véhicule de dragage actionnable à distance, et procédé de dragage utilisant un tel système drague - Google Patents

Drague pourvue d'un véhicule de dragage actionnable à distance, et procédé de dragage utilisant un tel système drague Download PDF

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Publication number
WO2012158028A1
WO2012158028A1 PCT/NL2012/050333 NL2012050333W WO2012158028A1 WO 2012158028 A1 WO2012158028 A1 WO 2012158028A1 NL 2012050333 W NL2012050333 W NL 2012050333W WO 2012158028 A1 WO2012158028 A1 WO 2012158028A1
Authority
WO
WIPO (PCT)
Prior art keywords
riser
dredging
suction
dredger
vessel
Prior art date
Application number
PCT/NL2012/050333
Other languages
English (en)
Inventor
Emile Arthur Henri Marie RUPERT
Pieter Abraham LUCIEER
Harmen Derk STOFFERS
Laurens Jan De Jonge
Original Assignee
Ihc Holland Ie B.V.
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 Ihc Holland Ie B.V. filed Critical Ihc Holland Ie B.V.
Priority to NZ617636A priority Critical patent/NZ617636B2/en
Priority to EP12724764.1A priority patent/EP2707548B1/fr
Priority to AU2012256499A priority patent/AU2012256499B2/en
Priority to CN201280034769.4A priority patent/CN103649420B/zh
Publication of WO2012158028A1 publication Critical patent/WO2012158028A1/fr
Priority to ZA2013/08530A priority patent/ZA201308530B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8858—Submerged units
    • E02F3/8866—Submerged units self propelled
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8858—Submerged units
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/905—Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/006—Dredgers or soil-shifting machines for special purposes adapted for working ground under water not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/10—Pipelines for conveying excavated materials
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C50/00—Obtaining minerals from underwater, 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 
    • 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

Definitions

  • Dredger provided with a remotely operable dredging vehicle, and method for dredging using such a dredger system
  • the invention relates to a dredger system for collecting material from a bottom surface of a water column, comprising a dredging vessel with a hopper for storing the material, and a suction tube which at a first tube end is arranged for discharging the material into the hopper, the suction tube having a second end for receiving the material.
  • the invention relates to a method of collecting material from a bottom surface of a water column, comprising providing a dredging vessel with a hopper for storing the material, the dredging vessel comprising a suction tube which at a first tube end is arranged for discharging the material into the hopper, and which at a second tube end is arranged for receiving the material.
  • the dredger vessel comprises a suction tube which at one tube end has a suction dredging head for removing material from a bottom surface of a water column (e.g. a sea floor).
  • the other tube end is connected to the dredger hull through a hull pivot with a pivot axis that is transverse with respect to the hull.
  • the term “tube” refers herein to a fluid conveyance with an implied rigidity such that the shape of the suction tube sufficiently stable for controlled positioning of the suction dredging head at the sea floor during suction dredging operations.
  • the term “tube” is contrasted to the term "hose", which is considered a relatively flexible fluid conduit.
  • Common suction dredging vessels are provided with a hull wherein a hopper for storing the material is arranged.
  • the pivot joint (with rotation axis substantially horizontal to the water surface and transversely oriented with respect to the dredger hull) provides a mechanical connection between the suction tube and the hull, as well as a fluid aperture that facilitates in discharging the material conveyed through the suction tube into the hopper.
  • the "hopper" is construed herein as part of the vessel hull that is shaped as a receptacle to provide a reservoir for material collected from the sea floor.
  • the suction tube has considerable length and consists of several frame reinforced tube sections in order to increase the depth at which the dredging operations can be executed. Problems arise if the dredging operations are to be carried out in waters having considerably greater depths. Such greater depths may occur in several operations, such as mining operations, dredging operations, sand extraction, etc. But in general, an increase in the length of a frame reinforced suction tube inevitably leads to increased mechanical stress in the tube and the surrounding frame under deep mining or dredging operational conditions.
  • a dredger system according to the preamble of claim 1, characterized in that the dredger system comprises a remotely operable dredging vehicle with a suction head and a riser that is at a first riser end in fluid communication with the suction head for receiving the material from the suction head, wherein during use, the remotely operable dredging vehicle is situated on the bottom surface, and a second riser end of the riser is releasably connected to the second tube end, for guiding the material from the bottom surface to the hopper.
  • the proposed dredger system allows reaching a greater dredging depth of 150 - 400 meters or more, while using a common suction dredging vessel.
  • suction dredging vessels are ordinarily provided with a suction head on the second end of the suction tube.
  • the suction head is replaced by a remotely operable dredging vehicle with a riser connected with the second tube end of the dredging vessel's suction tube.
  • the suction dredging vessel comprises a bow coupling with a gland for connection to a flexible fluid conduit, wherein the bow coupling is in fluid communication with the hopper, wherein the remotely operable dredging vehicle is with the second riser end releasably connectable to the gland, and wherein the suction dredging vessel comprises a further pump for straining the material removed by the dredging vehicle from the bottom surface via the riser and the bow coupling into the hopper.
  • the remotely operable dredging vehicle is, in addition to connectivity between the second riser end and the second suction tube end, also connectable with its second riser end to the gland of the bow coupling.
  • the further pump required for transporting the collected material into the hopper may be formed by the pump that is already provided on the vessel for discharging the dredged material from the hopper via the bow coupling, but this pump should then also be operable in reverse.
  • the further pump may be formed by an additional pump provided on the dredger vessel.
  • connection between the second riser end of the remotely operable vehicle and the gland of the vessel's bow coupling provides an additional possibility for employing the already present dredging vessel's functionality for dredging at greater depths at any moment and within a minimal amount of time.
  • the dredger system comprises a coupling element that is with one end arranged to be coupled to the second tube end and with another end arranged to be coupled to the second riser end.
  • the second end of the suction tube of the dredging vessel is commonly suitable for connecting to a suction head, yielding a default dredging vessel combination.
  • the default dredging vessel combination is easily converted to the augmented dredging system of the dredging vessel with the remotely operable dredging vehicle, without requiring further adjustments or additions to the dredging vessel.
  • the suction tube may have a different diameter than the riser.
  • the coupling element may thus have a funnel shaped flow path to bridge the difference in diameter.
  • the dredger system comprises a further vessel, wherein the remotely operable dredging vehicle is provided with a communication cable connecting the remotely operable dredging vehicle to the further vessel for transmission of control or data signals.
  • the further vessel allows control of and/or data communication to and from the remotely operable dredging vehicle, without the need for installing communication facilities for operating the remotely operable dredging vehicle aboard the dredging vessel.
  • the communication cable provides a low maintenance, cost-efficient means of transmitting control and/or data signals between the further vessel and the remotely operable dredging vehicle, with transmission quality that is relatively independent of the dredging depth.
  • the communication cable is provided with an extended upper cable portion terminating in a communication coupling, wherein the extended upper cable portion extends to above a water surface of the water column during use.
  • the extended upper cable portion extending to above the water surface allows for the communication coupling to be kept at a location above the water surface during use of the dredger system. In this way, no expensive water resistive measures have to be taken for protecting the communication coupling against water induced wear.
  • the riser is at the second riser end provided with at least one floating body for retaining the second riser end substantially near the water surface, in an uncoupled state of the remotely operable dredging vehicle and the dredging vessel.
  • the floating body provides a means for retaining the riser end near the water surface while the remotely operable dredging vehicle is in an uncoupled state with respect to the dredging vessel.
  • the riser end is easily locatable, manageable, and connectable to the suction riser by operating personnel on board the dredging vessel.
  • the extended upper cable portion may be connected to the further vessel.
  • the remotely operable dredging vehicle is provided with a propulsion device.
  • a method of collecting material from a bottom surface of a water column characterized by:
  • a remotely operated dredging vehicle positioned on the bottom surface and comprising a suction head and a riser with a first riser end in fluid communication with the suction head for receiving the material;
  • FIG. 1 schematically shows a side view of an embodiment of the dredging system
  • FIG. 2 presents a side view of a remotely operable dredging vehicle
  • FIG.3 schematically shows a side view of another embodiment of the dredging system.
  • FIG. 1 schematically shows a side view of an embodiment of the dredging system 100 for collecting material 112 from a bottom surface 110 of a water column 106.
  • the material 112 is depicted as individual rock objects embedded in the bottom surface 110.
  • the term "material” is to be construed broadly as a collection of objects and/or a granulate volume situated in or on the bottom surface 110 or forming the bottom surface 110 itself, i.e. sludge, sand, clay, deposits, rocks, scraps of ore, etc.
  • the dredging vessel 102 has a dredger hull 114 provided with a hopper 116 for storing the material 112.
  • the suction tube 118 is at a first tube end 122 connected to the dredger hull 114 by means of a pivot connection 120 which is substantially horizontal to the water surface 108 and transversely oriented with respect to the dredger hull 114.
  • the pivot connection 120 has an aperture for guiding the material 112 flowing through the suction tube 118 into the hopper 116, so that the first tube end 122 is effectively arranged for discharging the material 112 into the hopper 116.
  • the suction tube 118 has a second end 124 for receiving the material 112.
  • the dredger combination 100 comprises a remotely operable dredging vehicle 130 with a suction head 132 and a riser 134 that is at a first riser end 136 in fluid communication with the suction head 132 for transporting the material 112 from the suction head 132 to a second riser end 138.
  • At least a portion of the riser 134 may be constructed from a flexible material e.g. rubber or the like.
  • the remotely operable dredging vehicle 130 is positioned on the bottom surface 110, and the second riser end 138 is connected to the second tube end 124.
  • the material 112 that is removed from the bottom surface 110 into the suction head 132 may be guided through the riser 134 and the suction tube 118 into the hopper 116.
  • the suction head 132 may for example be a suction drag head, or an excavation tool (not shown) provided with cutting means e.g. a drum cutter or dredging wheel.
  • the dredging vessel 102 may comprise a gantry 126 by means of which the suction tube 118 can be displaced between a substantially horizontal rest position and an inclined dredging position.
  • FIG. 2 presents a side view of a remotely operable dredging vehicle 130, according to an embodiment.
  • the remotely operable dredging vehicle may be a crawler, drone, or the like.
  • the dredger system 100 comprises a coupling element 212 that is with one end arranged to be coupled to the second tube end 124 and with another end arranged to be coupled to the second riser end 138.
  • the coupling element 212 may for instance comprise a known ball joint.
  • the second riser end 138 shown in FIG.2 is at least partially flexible.
  • the remotely operable dredging vehicle 130 shown in FIG.2 comprises the suction head 132, which is in fluid communication with the riser 134 at its first riser end 136.
  • the remotely operable dredging vehicle shown is provided with a pump 222 for generating a pressure difference required for transporting the material 112 from the bottom surface 110, into the suction head 132, through the riser 134, to the second riser end 138, and further toward the dredging vessel 102.
  • the pump 222 may also be operable in reverse, for depositing material 112 back onto the bottom surface 110.
  • the dredger system 100 shown in FIG.2 comprises a further vessel 204.
  • the further vessel 204 may be provided with means (not shown) for deploying and/or hauling up the remotely operable dredging vehicle 130 into and out of the water column 106.
  • the remotely operable dredging vehicle 130 is provided with a communication cable 214 connecting the remotely operable dredging vehicle 130 to the further vessel 204, for the purpose of transmitting control or data signals between the further vessel 204 and the remotely operable dredging vehicle 130.
  • the further vessel 204 is arranged to control the remotely operable dredging vehicle 130 and/or to maintain a data communication link between the further vessel 204 and the remotely operable dredging vehicle 130.
  • connection of the communication cable 214 to the further vessel 204 may be permanent.
  • the communication cable 214 may be provided with an extended upper cable portion 216 terminating in a communication coupling (not shown), for releasable connection between the remotely operable dredging vehicle 130 and the further vessel 204.
  • the extended upper cable portion 216 may extend to above a water surface 108 of the water column 106 during use, for protecting the
  • no further vessel 204 is present but control and/or data communication may instead be established between the dredging vessel 102 and the remotely operable dredging vehicle 130.
  • the riser 134 has several floating bodies 220 at the second riser end 138, for keeping the second riser end 138 near the water surface 108, while the remotely operable dredging vehicle 130 and the dredging vessel 102 are in an uncoupled state.
  • the floating bodies 220 may consist of individual buoyancy units connectable to the second riser end 138. Alternatively or in addition, one or more buoyancy structures may be integrated with the second riser end 138.
  • the floating bodies 220 may have coupling elements for supply of power and/or jet water for the remotely operable dredging vehicle 130.
  • communication coupling in a decoupled state may be connectable to or storable on or inside the floating body 220.
  • the remotely operable dredging vehicle 130 shown in FIG.2 is provided with a propulsion device 224.
  • the propulsion device 224 comprises caterpillar tracks 226 for driving the remotely operable dredging vehicle 130 along a direction of motion A during use.
  • the propulsion device 224 may comprise other means of propulsion e.g. Archimedes screws, thrusters, wheels, etc.
  • the caterpillar track based propulsion device 224 provides a robust low-maintenance means of propulsion. Consequently, the remotely operable dredging vehicle 130 may remain under water for a relatively long time, both during use in combination with the dredging vessel 102, and in an uncoupled state in which it may rest idle on the bottom 110 of the water column 106.
  • an embodiment of the suction dredger vessel 102 may have a bow coupling 228 to which a high-pressure conduit (e.g. a flexible hose or floating pipeline) is connectable, and wherein the bow coupling 228 is in fluid communication with the hopper 116 via suitable fluid channels in such a way that dredged material can be discharged via the bow coupling 228 from the hopper 116 by means of a centrifugal pump 232 provided on the vessel 102.
  • the bow coupling 228 may be used for attaching the high-pressure conduit to the dredger vessel 102 without needing assistance of a further vessel.
  • the powerful pump 232 on board the dredger vessel 102 can pump the material via the high-pressure conduit over a distance of several kilometers.
  • a bow coupling 228 may furthermore be provided with an inclined jet for spraying discharge of dredged material from the hopper 116 to a shore ("rainbowing").
  • the bow coupling 228 comprises a frame 234, which is mounted on the bow 229 of the dredger vessel 102.
  • the bow coupling 228 further comprises a turning gland or swiveling body 230 (for example a swiveling body described in patent document EP2148120) for fluid tight connection of the high pressure-conduit to the bow coupling 228, and a hoisting winch 236 for lifting or lowering the conduit.
  • the remotely operable dredging vehicle 130 is provided at the second riser end 138 with coupling means for releasable connection to the gland 230.
  • the suction dredging vessel 102 may have a further pump, which is needed for straining the dredged material removed by the dredging vehicle 130 via the riser 134 and via the bow coupling 228 into the hopper 116.
  • This further pump may be formed by the centrifugal pump 232 that is provided for discharging the dredged material from the hopper 116 via the bow coupling 228. If this is the case, then the further pump 232 needs to be suitable for both forward and reversed pumping action (even though the reversed pumping i.e.
  • the method for collecting material 112 from a bottom surface 110 of a water column 106 comprises the actions of providing a dredging vessel 102 with a hopper 116 for storing the material 112, and a suction tube 118 which at a first tube end 122 is arranged for discharging the material 112 into the hopper 116.
  • the method involves providing a remotely operated dredging vehicle 130 positioned on the bottom surface 110 and comprising a suction head 132 and a riser 134 with a first riser end 136 in fluid communication with the suction head 132.
  • a second riser end 138 of the riser 134 is connected to a second tube end 124 of the suction tube 118.
  • the suction dredging vessel 102 comprises a bow coupling 228 with a gland 230 for connection to a flexible fluid conduit, wherein the bow coupling 228 is in fluid communication with the hopper 116, as was described herein with reference to Fig.3.
  • This method comprises the actions of selectively establishing a releasable connection between the second riser end 138 of the remotely operated dredging vehicle 130, and the second tube end 124 or the gland 230 of the suction dredging vessel 102. Once connection is established, the material 112 is removed from the sea floor 110 by means of the suction head 132. This material is conveyed 112 through the riser 134.
  • the dredged material is conveyed through the suction tube 118 or the bow coupling 228 into the hopper 116.
  • the suction dredging vessel 102 may have a further pump 232, which is needed for straining the dredged material removed by the dredging vehicle 130 via the riser 134 via the bow coupling 228 into the hopper 116.
  • the remotely operable dredging vehicle 130 can be deployed on the bottom 110 of the water 106 by a further vessel 204, e.g. a crane barge or the like.
  • the further vessel 204 may be part of the dredger system 100.
  • the further vessel 204 may be provided with means (not shown) for deploying and/or hauling up the remotely operable dredging vehicle 130 into and out of the water column 106.
  • the further vessel 204 may be arranged for controlling the remotely operable dredging vehicle 130 and/or maintaining a data communication link during use.
  • the remotely operable dredging vehicle 130 may be provided with a communication cable 214 that is connected to the further vessel 204 during use.
  • the remotely operable dredging vehicle 130 is sufficiently durable for staying under water on the bottom 110 for a considerable period.
  • the dredging vessel 102 is allowed to connect to the remotely operable dredging vehicle 130 at will, by establishing a releasable connection between the second riser end 138 of the suction tube 118 of the remotely operable dredging vehicle 130, and the second tube end 124 of the suction tube 118 of the dredging vessel 102. If by the use of the dredger system 100 a sufficient amount of material 112 has been collected in the hopper 116 of the dredging vessel 102, then the dredging vessel 102 may be disconnected from the remotely operable dredging vehicle 130.
  • the remotely operable dredging vehicle 130 may remain on the bottom surface 110. After the return of the emptied dredging vessel 102 or the arrival of another dredging vessel, the releasable connection between the remotely operable dredging vehicle 130 and the dredging vessel 102 may again be established.
  • the floating bodies 220 attached to the riser 134 of the remotely operable dredging vehicle 130 facilitate the localization and (re)connection to the remotely operable dredging vehicle 130. Repeated disconnection and reconnection of the emptied dredging vessel 102 or another dredging vessel to the remotely operable dredging vehicle 130 allows for continuous use of the remotely operable dredging vehicle 130 without redeployment.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sewage (AREA)
  • Earth Drilling (AREA)
  • Treatment Of Sludge (AREA)

Abstract

La présente invention concerne un système drague (100) pour collecter un matériau (112) à partir d'un fond marin (110). Ledit système drague comprend un navire de dragage (102) qui comporte une trémie (116) pour stocker le matériau (112), et un tube d'aspiration (118) qui, à une première extrémité de tube (122), est agencé pour décharger le matériau (112) dans la trémie (116), le tube d'aspiration (118) possédant une seconde extrémité de tube (124) pour recevoir le matériau (112). Le système drague (100) comprend un véhicule de dragage actionnable à distance (130) qui comporte une tête d'aspiration (132) et une colonne montante (134) qui est, à une première extrémité de colonne montante (136), raccordée à la tête d'aspiration (132). Durant l'utilisation, le véhicule de dragage actionnable à distance (130) est situé sur le fond marin (110), et une seconde extrémité de colonne montante (138) de la colonne montante (134) est raccordée de façon libérable à la seconde extrémité de tube (124), pour guider le matériau (112) de la surface de fond (110) à la trémie (116).
PCT/NL2012/050333 2011-05-13 2012-05-14 Drague pourvue d'un véhicule de dragage actionnable à distance, et procédé de dragage utilisant un tel système drague WO2012158028A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NZ617636A NZ617636B2 (en) 2011-05-13 2012-05-14 Dredger provided with a remotely operable dredging vehicle, and method for dredging using such a dredger system
EP12724764.1A EP2707548B1 (fr) 2011-05-13 2012-05-14 Drague pourvue d'un véhicule de dragage actionnable à distance, et procédé de dragage utilisant un tel système drague
AU2012256499A AU2012256499B2 (en) 2011-05-13 2012-05-14 Dredger provided with a remotely operable dredging vehicle, and method for dredging using such a dredger system
CN201280034769.4A CN103649420B (zh) 2011-05-13 2012-05-14 带远程操作挖掘车的挖掘机及用该挖掘机系统挖掘的方法
ZA2013/08530A ZA201308530B (en) 2011-05-13 2013-11-13 Dredger provided with a remotely operable dredging vehicle, and method for dredging using such a dredger system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2006782 2011-05-13
NL2006782A NL2006782C2 (en) 2011-05-13 2011-05-13 Dredger provided with a remotely operable dredging vehicle, and method for dredging using such a dredger system.

Publications (1)

Publication Number Publication Date
WO2012158028A1 true WO2012158028A1 (fr) 2012-11-22

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PCT/NL2012/050333 WO2012158028A1 (fr) 2011-05-13 2012-05-14 Drague pourvue d'un véhicule de dragage actionnable à distance, et procédé de dragage utilisant un tel système drague

Country Status (6)

Country Link
EP (1) EP2707548B1 (fr)
CN (1) CN103649420B (fr)
AU (1) AU2012256499B2 (fr)
NL (1) NL2006782C2 (fr)
WO (1) WO2012158028A1 (fr)
ZA (1) ZA201308530B (fr)

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WO2014026670A1 (fr) * 2012-08-14 2014-02-20 Atlas Elektronik Gmbh Système et procédé d'extraction de solides au fond de l'océan
ITRN20130019A1 (it) * 2013-05-30 2014-12-01 Paolo Giglioli Apparecchiatura e metodo di dragaggio per fondali su cui sono presenti sostanze inquinanti e/o tossiche
NL2012579C2 (en) * 2013-12-02 2015-06-03 Oceanflore B V Subsurface mining vehicle and method for collecting mineral deposits from a sea bed at great depths and transporting said deposits to a floating vessel.
DE102014005737B3 (de) * 2014-04-16 2015-09-17 Georg Linner Vorrichtung zum Aufnehmen und Entfernen von auf Gewässerböden abgelagerten plastischen, schlammartigen Stoffen
CN105314411A (zh) * 2014-07-21 2016-02-10 辽宁正和船舶科技有限公司 船载散料的装卸设备
WO2016097380A1 (fr) * 2014-12-18 2016-06-23 Environnemental Sediments Treatment Système de prélèvement de sédiments sur un fond d'un milieu liquide
FR3030587A1 (fr) * 2014-12-18 2016-06-24 Environnemental Sediments Treat Systeme de prelevement de sediments sur un fond d'un milieu liquide
KR20180035891A (ko) * 2015-08-28 2018-04-06 데쓰조 나가타 양광 시스템 및 양광 방법
FR3065435A1 (fr) * 2017-04-25 2018-10-26 Smel Et Associes Plateforme navale et procede de collecte de dechets sous-marins
EP3889360A1 (fr) * 2020-04-02 2021-10-06 Soil Machine Dynamics Limited Appareil d'élimination de matériau à partir d'un plancher d'un corps d'eau

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AU2016259542B2 (en) * 2015-05-08 2020-09-03 Coolfish Robotics Llc Microdredging system and method of using the same
FR3073812B1 (fr) * 2017-11-20 2021-05-14 Panipa Dispositif pour pomper l'eau en grande profondeur
CN109610543A (zh) * 2018-11-14 2019-04-12 中交广州航道局有限公司 吸沙船及其吸沙臂结构
CN110685694B (zh) * 2019-09-30 2021-04-06 中国船舶工业集团公司第七0八研究所 一种适用于深水采矿的抽吸设备
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CN113446008A (zh) * 2021-08-04 2021-09-28 中铁工程装备集团有限公司 竖井挖掘装置及其施工方法

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JP2017516935A (ja) * 2014-04-16 2017-06-22 ゲオルク・リンナー 水底上に沈積した可塑性の泥状物質の収集および除去用装置
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FR3030587A1 (fr) * 2014-12-18 2016-06-24 Environnemental Sediments Treat Systeme de prelevement de sediments sur un fond d'un milieu liquide
US10508413B2 (en) 2014-12-18 2019-12-17 Environnemental Sediments Treatment System for sampling sediment on a bottom of a liquid medium
WO2016097380A1 (fr) * 2014-12-18 2016-06-23 Environnemental Sediments Treatment Système de prélèvement de sédiments sur un fond d'un milieu liquide
KR20180035891A (ko) * 2015-08-28 2018-04-06 데쓰조 나가타 양광 시스템 및 양광 방법
KR102019197B1 (ko) * 2015-08-28 2019-11-04 데쓰조 나가타 양광 시스템
FR3065435A1 (fr) * 2017-04-25 2018-10-26 Smel Et Associes Plateforme navale et procede de collecte de dechets sous-marins
EP3889360A1 (fr) * 2020-04-02 2021-10-06 Soil Machine Dynamics Limited Appareil d'élimination de matériau à partir d'un plancher d'un corps d'eau
WO2021197784A1 (fr) * 2020-04-02 2021-10-07 Soil Machine Dynamics Limited Appareil pour la séparation d'un matériau nodulaire d'un matériau non nodulaire et l'élimination d'un matériau du fond d'une masse d'eau

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CN103649420A (zh) 2014-03-19
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AU2012256499A1 (en) 2013-11-28
NZ617636A (en) 2015-06-26
CN103649420B (zh) 2015-08-12
EP2707548B1 (fr) 2015-03-04
NL2006782C2 (en) 2012-11-14
ZA201308530B (en) 2014-08-27

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