EP0054498B1 - Vorrichtung zum Baggern eines Meeresbodens, insbesondere für grosse Tiefen - Google Patents

Vorrichtung zum Baggern eines Meeresbodens, insbesondere für grosse Tiefen Download PDF

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Publication number
EP0054498B1
EP0054498B1 EP81402003A EP81402003A EP0054498B1 EP 0054498 B1 EP0054498 B1 EP 0054498B1 EP 81402003 A EP81402003 A EP 81402003A EP 81402003 A EP81402003 A EP 81402003A EP 0054498 B1 EP0054498 B1 EP 0054498B1
Authority
EP
European Patent Office
Prior art keywords
working head
arm
dredging
anchoring device
plant according
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.)
Expired
Application number
EP81402003A
Other languages
English (en)
French (fr)
Other versions
EP0054498A1 (de
Inventor
Jacques Oules
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.)
Hydroconsult SA
Original Assignee
Hydroconsult 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 Hydroconsult SA filed Critical Hydroconsult SA
Publication of EP0054498A1 publication Critical patent/EP0054498A1/de
Application granted granted Critical
Publication of EP0054498B1 publication Critical patent/EP0054498B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/06—Floating substructures as supports
    • E02F9/062—Advancing equipment, e.g. spuds for floating dredgers
    • E02F9/065—Advancing equipment, e.g. spuds for floating dredgers characterised by the use of lines with anchors and winches
    • 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
    • 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
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
    • E02F3/9237—Suction wheels with axis of rotation in transverse direction of the longitudinal axis of the suction pipe

Definitions

  • the present invention relates to an installation for dredging an underwater bottom, for example for carrying out underwater earthworks or for extracting ores at great depths.
  • One of these known installations comprises a working head, in contact with the seabed mounted on one end of a rigid arm whose other end is articulated to the hull a floating body, pivotally about a horizontal axis.
  • the working head is able to carry out dredging passes on the seabed having a trajectory in the form of an arc of a circle, under the control of two butterfly cables which are anchored to the seabed in places located on either side of the working head and pass through means fixed to the working head to come and wind on two winches mounted on the floating body and actuable in the opposite direction of rotation.
  • the positioning and advancement of the installation are generally carried out using two vertical anchoring piles mounted vertically mobile at the ends of the floating body. The advancement of the installation is done by pivoting the floating body around one of the two piles which is driven into the seabed, while the other pile is raised.
  • the present invention aims to eliminate the aforementioned drawbacks by providing a solution which allows both dredging at great depth over a large area of the ground without the need to change the position of the floating body.
  • this solution consists of a dredging installation, in particular for dredging at great depth, by which an arm carrying a working head is articulated to a support so as to pivot about a horizontal axis and two butterfly cables are provided for the control of each dredging pass movement in the form of a circular arc, which are respectively anchored to the seabed at places located on either side of the working head, outside of the sweep pass trajectory and pass by means fixed to the working head to come and wind on two winches mounted on the floating body, the latter comprising at least one device for anchoring the floating body to the seabed in a fixed working position, which is mounted on the vertically movable floating body between an anchoring position pressed into the seabed and a raised position out of this bottom, characterized in that said arm carrying the head work is mounted on a support which is vertically movable on the anchoring device, at least in the lower part thereof, between a working position in which the arm forms a relatively small angle with the anchoring device and another working position in which it
  • auxiliary anchoring device vertically movable between a position pressed into the seabed and a position released from this bottom, the auxiliary device being located offset in the direction of widening of the aforementioned annular sector, of the aforementioned anchoring device, along a variable distance.
  • the dredging installation comprises a floating body 1, such as a ship in the shape of a catamaran, an anchoring device for the ship, produced in the form a vertical stake 2 and a rigid arm 3 which carries at one end a working head 4 and is articulated by its other end to a support in the form of a carriage 5 mounted vertically movable along the anchoring stake 2.
  • a floating body 1 such as a ship in the shape of a catamaran
  • an anchoring device for the ship produced in the form a vertical stake 2 and a rigid arm 3 which carries at one end a working head 4 and is articulated by its other end to a support in the form of a carriage 5 mounted vertically movable along the anchoring stake 2.
  • the arm 3 is connected to the support carriage 5 by an articulation having a horizontal axis 7.
  • the carriage is provided with a set of pinions 8 driven by a motor 9 and each meshing with a rack 10 extending along the stake 2.
  • the latter may be provided with laterally projecting flanges 11 behind which engage appropriate retaining members 12 associated with the carriage and which for example comprise rollers intended to come into rolling contact with the rear face of the flanges 11.
  • the dredging installation comprises an auxiliary vertical pile 13 which is connected by a connecting device in the form of a parallelogram 14 to a carriage 15 mounted vertically movable along the pile 2 in the same manner as the carriage 5 In the figures, only the carriage drive motor 15 and the rack are shown at 9 'and 10'.
  • This auxiliary pile 13 is further equipped with means allowing a pivoting movement in a vertical plane around the articulation connection of the parallelogram 14 to the carriage 15.
  • the means for controlling the pivoting movement of the pile 13 are formed by a cable 17 fixed at one end to the pile and winding at its other end on a winch 18 mounted on the ship 1.
  • the auxiliary pile 13 is situated substantially in the vertical plane in which the anchor pile 2 and the arm 3 are located with the work head 4, but, with respect to the pile 2, on the side opposite to that of the work head 4.
  • the installation comprises a cable 19 which is wound on a winch 20 on board the ship 1 and is fixed at 21 to the end of the arm 3, on which the working head is mounted 4. Thanks to this cable 19, the arm 3 can pivot vertically about its horizontal pivot axis 7 of its articulation to the support carriage 5.
  • the device ensuring the pivoting of the arm 3 around the vertical axis comprises two butterfly cables 22 anchored at 23 to the seabed 16 on either side of the arm 3. Each cable22 passes over a pulley 24 fixed to the lower or free end of the arm 3 and is wound on a winch 25 mounted on the vessel 1, passing over another deflection pulley 26 provided in the upper part of arm 3.
  • the anchor pile 2 is mounted at 34 on the ship 1, vertically sliding between an anchor position in which its lower end is pressed into the seabed (FIG. 1) and a raised underwater bottom release position (Figure 3).
  • the auxiliary pile 13 is also likely to be driven into the seabed or to assume a raised position.
  • the working head 4 can be produced in the form of a suction head whether or not equipped with a cutting tool such as a shovel wheel 27 which can be held in position by a jack 28.
  • a suction pump 29 mounted inside the arm 3 and which delivers the materials sucked through a transfer pipe 30 of these materials to a storage location, not shown.
  • the motors 9 and 9 'intended for the movement of the carriages 5 and 15 and the suction and discharge pump 29 as well as the actuator 28 can be remote-controlled, for example from the vessel 1, in any case appropriate and known.
  • the shovel wheel 27 of the working head 4 can be advanced to line 32 representing the trajectory of the next dredging pass, without it being necessary to move the vessel 1
  • the working head 4 can thus sweep by successive parallel passes an annular sector 33 (FIG. 2).
  • the limit of scanning by successive parallel passes without changing the position of the vessel 1 is reached when the carriage 5 is in the position shown in phantom lines in FIG. 1, in which the arm 3 extends horizontally.
  • the exact position of the shovel wheel 27 can be adjusted by means of its jack 28.
  • the upward movement of the carriage 5 causes the desired advancement of the ship 1.
  • the throttle cables 22 are kept taut to prevent the working head 4 from skids on the bottom and moves backwards. Since the auxiliary pile 13 remains in its depressed position in the bottom 16 during the whole operation of advancing the ship 1, the latter is always anchored to the seabed and the advancement operation is perfectly controllable.
  • the dredging installation according to the invention makes it possible to work on the seabed at depths up to 100 meters and even more and scanning by successive parallel passes without changing the working position of the installation, and this in particular thanks to the articulation of the carrier arm of the working head to a motor carriage movable along the anchoring stake 2 to the seabed 16.
  • the embodiment which has just been described and which is shown in the figures has been given only by way of example. Of course, many variants can be made to this embodiment.
  • the configuration and mounting of the two carriages on the main anchor pile 2 can be different and of any suitable nature known to those skilled in the art.
  • the working head is also not limited to the structure described and shown.
  • the ship can be equipped with an autonomous or additional propellant device to facilitate the advancement maneuver.
  • the anchoring stake can be produced in any suitable form and have a cross section of any suitable form.
  • the extreme part of the pile which is intended to be inserted into the seabed, is advantageously made in the form of a separate body mounted to rotate and, if necessary, vertically movable in the pile.
  • the pile can be made up of a multitude of assemblable sections so that it is adaptable to the depth of the seabed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Earth Drilling (AREA)

Claims (9)

1. Nassbaggerungsanlage, insbesondere zur Grosstiefen-Baggerung, durch welche ein einen Arbeitskopf (4) tragender Arm (3) um eine waagerechte Achse (7) drehbar an einer Halterung angelenkt ist und zwei Schwungseile (22) zur Steuerung jeder kreisbogenförmigen Baggerungsdurchlaufsgangsbewegung vorgesehen sind, die jeweils am Meeresboden, an beiderseits der Arbeitskopfes ausserhalb der Durchlaufschwenkungsbahn verankert sind und durch an dem Arbeitskopf befestigten Mittel (21) führen, um sich auf zwei an dem Schwimmkörper (1) angeordneten Winden (25) aufzuwickeln, wobei dieser letztere wenigstens eine Vorrichtung (2) zur Verankerung des Schwimmkörpers in einer festen Arbeitslage am Unterwasserboden aufweist, welche am Schwimmkörper zwischen einer in den Meeresboden eingetriebenen Verankerungsstellung und einer aus diesem Boden herausgehobenen Stellung senkrecht bewegbar angeordnet ist, dadurch gekennzeichnet, dass der den Arbeitskopf (4) tragende Arm (3) an einer Halterung (5) angeordnet ist, welche an der Verankerungsvorrichtung (2) wenigstens in dem unteren Teil derselben zwischen einer Arbeitsstellung in welcher der Arm einen verhältnismässig schwachen Winkel (a) mit der Verankerungsvorrichtung einschliesst und einer anderen Arbeitsstellung, in welcher er im wesentlichen mit dem Boden gleichgerichtet ist, senkrecht verschiebbar ist, wobei die senkrechte Verschiebung der Halterung (5) zwischen den beiden Arbeitsstellungen eine, je nach der Richtung der Verschiebung der Halterung von vorne nach hinten gerichtete Bewegung des Arbeitskopfes auf dem Meeresboden veranlasst.
2. Anlage gemäss Anspruch 1, dadurch gekennzeichnet, dass die Halterung (5) des den Arbeitskopf (4) tragenden Armes (3) als, mittels einer Antriebsvorrichtung mit Ritzeln (8) und Zahnstange (10) verschiebbarer Schlitten ausgebildet ist, wobei die Zahnstange vorzugsweise der gegebenenfalls als senkrechter Pfahl ausgebildeten Verankerungsvorrichtung zugeordnet ist.
3. Anlage gemäss Anspruch 1, dadurch gekennzeichnet, dass sie eine zwischen einer Verankerungsstellung um Unterwasserboden (16) und einer abgehobenen Stellung, senkrecht bewegbare Hilfsverankerungsvorrichtung (13) wie einen Pfahl aufweist, wobei die Hilfsverankerungsvorrichtung (13) gegenüber der Verankerungsvorrichtung (2) in der Vorwärtsbewegungsrichtung des Schwimmkörpers (1) in einem veränderlichen Abstand versetzt gelegen ist.
4. Anlage gemäss Anspruch 3, dadurch gekennzeichnet, dass die Hilfsverankerungsvorrichtung (13) mit einem senkrecht bewegbar, an der Verankerungsvorrichtung (2) angeordneten, Schlitten (15) verbunden ist.
5. Anlage gemäss Anspruch 4, dadurch gekennzeichnet, dass der Schlitten (15) eine Antriebsvorrichtung mit Zahnrädern und Zahnstange (10') umfasst.
6. Anlage nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass die Hilfsverankerungsvorrichtung (13) mit dem Schlitten (15) in einer senkrechten Ebene unter der Wirkung von Betätigungsmitteln wie eines Seiles (17) und einer am Schwimmkörper angeordneten Winde (18) schwenkbar durch eine Parallelführungsvorrichtung (14) veränderlicher Gesetalt verbunden ist.
7. Anlage nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass die Zahnstangen (10,10') für die Verschiebung der Schlitten (5, 15) an der Verankerungsvorrichtung (2) vorgesehen sind und dass die Schlitten (5, 15) Zahnräder und Motoren für deren Antrieb tragen.
8. Anlage nach einem der Ansprüche 1 bis 7, bei welcher der Arbeitskopf ein Saugkopf ist, dadurch gekennzeichnet, dass eine Saugpumpe (29) in dem den Arbeitskopf (4) tragenden Arm (3) angebracht und bestimmt ist, das angesaugte Gut in eine sich ebenfalls teilweise in dem Arm (3) erstreckende Uebertragungsleitung (30) zu fördern.
9. Anlage nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Lage des gegebenenfalls mit einem Schneidwerkzeug wie einem Schaufelrad (27) ausgerüsteten Arbeitskopfes (4) über einen fernsteuerbaren Kraftzylinder (28), der zwischen den Enden des Armes (3) und des Arbeitskopfes (4) angeordnet ist, einstellbar ist.
EP81402003A 1980-12-16 1981-12-15 Vorrichtung zum Baggern eines Meeresbodens, insbesondere für grosse Tiefen Expired EP0054498B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8026683A FR2500868A1 (fr) 1980-12-16 1980-12-16 Procede de dragage d'un fond sous-marin, notamment en grande profondeur, et installation pour la mise en oeuvre de ce procede
FR8026683 1980-12-16

Publications (2)

Publication Number Publication Date
EP0054498A1 EP0054498A1 (de) 1982-06-23
EP0054498B1 true EP0054498B1 (de) 1985-05-29

Family

ID=9249151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81402003A Expired EP0054498B1 (de) 1980-12-16 1981-12-15 Vorrichtung zum Baggern eines Meeresbodens, insbesondere für grosse Tiefen

Country Status (5)

Country Link
US (2) US4445290A (de)
EP (1) EP0054498B1 (de)
CA (2) CA1167074A (de)
DE (1) DE3170778D1 (de)
FR (1) FR2500868A1 (de)

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FR2536439B1 (fr) * 1982-11-19 1985-08-09 Valeo Drague a stabilite amelioree
US4485569A (en) * 1983-05-06 1984-12-04 Mitsubishi Jukogyo Kabushiki Kaisha Spud arrangement for a dredge
US5791074A (en) * 1993-07-15 1998-08-11 Minpro Australia N.L. Dredge
AU674599B2 (en) * 1993-07-15 1997-01-02 Minpro Australia N.L. Dredge
US5421109A (en) * 1994-01-31 1995-06-06 American Oilfield Divers, Inc. Underwater site clearance sweep apparatus and method
GB2315787B (en) * 1996-03-01 1999-07-21 Seabed Impeller Levelling And Dredging apparatus
EP0826836A1 (de) * 1996-09-03 1998-03-04 Ballast Nedam Grond en Wegen B.V. Wasserfahrzeug ausgestattet mit einer aufrechten Leiter mit Werkzeugen für Unterwasserarbeiten
US20050194367A1 (en) * 2004-03-02 2005-09-08 Fredrick William G.Jr. System and method for remote controlled actuation of laser processing head
US20060123671A1 (en) * 2004-12-14 2006-06-15 Cornelis Heuvelman Cutter suction dredge
WO2012021813A1 (en) * 2010-08-13 2012-02-16 Deep Reach Technology Inc. Subsea excavation systems and methods
NL2007694C2 (en) * 2011-11-01 2013-05-07 Ihc Holland Ie Bv Anchoring system.
US10287746B1 (en) 2015-12-14 2019-05-14 Dsc Dredge, Llc Wide-format swinging ladder dredge
US10526050B1 (en) 2018-09-18 2020-01-07 Johnson Outdoors Inc. Shallow water anchor with hydraulic actuation
GB2622764A (en) * 2022-06-15 2024-04-03 Atureliya Senake Subterranean space creation and utilisation solutions
CN118081368B (zh) * 2024-04-23 2024-06-25 江苏惠泽润尔能源科技有限公司 一种疏水阀组装机

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NL129899C (de) * 1968-03-12
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FR2453945A1 (fr) * 1979-04-10 1980-11-07 Bibaut Gilbert Engin pour le curage des etangs, marais ou canaux

Also Published As

Publication number Publication date
USRE32297E (en) 1986-12-02
EP0054498A1 (de) 1982-06-23
CA1167074A (en) 1984-05-08
DE3170778D1 (en) 1985-07-04
US4445290A (en) 1984-05-01
CA1224815B (en) 1987-07-28
FR2500868B1 (de) 1984-12-28
FR2500868A1 (fr) 1982-09-03

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