EP3341530B1 - Bagger zur dispersion von wassersedimenten - Google Patents

Bagger zur dispersion von wassersedimenten Download PDF

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Publication number
EP3341530B1
EP3341530B1 EP16760118.6A EP16760118A EP3341530B1 EP 3341530 B1 EP3341530 B1 EP 3341530B1 EP 16760118 A EP16760118 A EP 16760118A EP 3341530 B1 EP3341530 B1 EP 3341530B1
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EP
European Patent Office
Prior art keywords
legs
machine
leg
stern
bow
Prior art date
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Application number
EP16760118.6A
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English (en)
French (fr)
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EP3341530A1 (de
Inventor
Sébastien CAPITAINE
Stéphane AUDOYNAUD
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.)
Port Adhoc Paimpol
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Port Adhoc Paimpol
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Publication date
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Publication of EP3341530A1 publication Critical patent/EP3341530A1/de
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Publication of EP3341530B1 publication Critical patent/EP3341530B1/de
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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
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9206—Digging devices using blowing effect only, like jets or propellers
    • 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
    • E02F3/8833—Floating installations
    • E02F3/8841—Floating installations wherein at least a part of the soil-shifting equipment is mounted on a ladder or boom
    • 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

Definitions

  • the invention relates to the field of dredging of aquatic bottoms and in particular dredging in ports.
  • Dredging is a port engineering operation that involves the extraction of materials, such as sediments, from an aquatic bottom.
  • dredging is carried out in ports to limit siltation of the aquatic bottom or in the channels to ensure a minimum draft to allow navigation.
  • Mechanical dredging involves excavating the aquatic bottom by means of a mechanical shovel; Hydraulic dredging consists of breaking up, vacuuming and then rejecting the sediments by means of a pump equipped with a rotary cutter. The sediments are then recycled or simply discharged by sea, for example during operations of clapage (that is to say of rejection at sea).
  • local residents may object to the issuance of administrative authorizations due to noise and aesthetic disturbances caused by traditional dredging operations (presence of cranes, excavators, suction pipes, treatment units, transport trucks). extracted sediments, palisades).
  • Another technique is to periodically resuspend sediment in the water that accumulates on the aquatic bottom. This technique replaces traditional techniques because it is less expensive, which makes it possible to reduce the intervals between two dredging operations.
  • an agitator mixes the aquatic bottom by taking advantage of the natural hydrodynamics of the harbor basins (eg the tide) to drain sediments: the ebb tide draws suspended sediments out of the sea. which limits their accumulation and allows for regular dredging without the need for excavation or removal of sediments.
  • Resuspension also uses essentially submarine means, whose visibility, clutter and noise are low, which residents do not have to complain about.
  • the document US 4,073,078 (LEITZ ) describes a machine for dispersing sediments accumulated on an aquatic background, this machine comprising a floating vessel having a bow and a stern, and an underwater structure having at least one leg and a rotary agitator mounted on the leg, the leg being hingedly mounted relative to the building between a working position in which the leg is deployed to anchor in the aquatic bottom, and a rest position in which the leg is retracted to the building.
  • This machine has a big problem of stability.
  • the current created by the agitator can carry objects likely to block or even damage its propeller, to the detriment of its efficiency, hence frequent (and expensive) maintenance operations.
  • the main object of the present invention is to meet the disadvantages of the known techniques.
  • a first objective is to propose an autonomous sediment dispersion machine, which is perfectly stable during dredging.
  • a second objective is to propose a sediment dispersion machine ensuring precise and constant quality dredging.
  • a third objective is to propose a sediment dispersion machine that is easy to use and can be quickly moved during a dredging operation.
  • a fourth objective is to provide a sediment dispersing machine compact enough to be easily transported, for example from one port to another, by sea or even land.
  • FIG. 1 shows a machine 1 dispersion of sediment 2, hereinafter simply referred to dredge 1, used for dredging funds aquatic 3.
  • Dredge 1 includes a floating building 4 (the water is represented by a dashed line on the figures 2 and 3 ) having a bow 5 and a stern 6, and an underwater structure 7 comprising a set of legs 8 bow, a set of stern legs 9 and a stirrer 10 for ensuring the dispersion of sediment 2 aquatic background 3 .
  • Footwork 8 bow comprises two legs 8 of bow each positioned on an edge of the building 4 floating at the bow 5 thereof, and the set of legs 9 of Stern comprises two 9 stern legs each positioned on a floating building edge 4 , at the stern 6 of it.
  • the floating vessel 4 comprises a hull 11 defining a bridge 12 on which mooring bollards 13 are mounted, at least one engine 14 (two in the example shown in the figures), and a wheelhouse 15 in which are located controls steering of the dredge 1 both for the displacement of it as for the dredging operations themselves.
  • the motors 14 are for example outboard motors that can be raised to allow the transport of the dredge 1 or its loading on a trailer.
  • the engines 14 could be of the inboard type to facilitate the movements on the deck 12 of the dredge 1 and accessibility thereto.
  • the floating building 4 may comprise a crane for loading and unloading objects on the dredge 1, and additional floats that are positioned on the port and starboard edges of the hull 11, these floats used to increase the floatation surface (and hence the stability) of the dredge 1.
  • the floating building 4 has a width strictly less than 3m and a height less than about 3m. These dimensional characteristics allow the transport of the dredge 1 by land without having recourse to an exceptional transport of accompanied convoy type.
  • the floating building 4 as well as the bow legs 8 , the stern legs 9 and the stirrer 10 are made of a metallic material and preferably an aluminum alloy which, while being rigid , limits the weight of the dredge 1 and thus facilitates its transport and its movements.
  • the bow legs 8 and the stern legs 9 comprise a number of common elements, which, in the remainder of this description, are given the same names and the same numerical references.
  • Each leg 8, 9 comprises a base 16 and is articulated relative to the building 4 floating between a working position in which the leg 8, 9 is deployed to anchor its base 16 in the aquatic floor 3 , and a rest position wherein the leg 8, 9 is retracted to the floating building 4 .
  • the articulation of the legs 8, 9 with respect to the floating building 4 is carried out using actuators, in this case a cylinder 17 for folding and an extension cylinder 18 .
  • the actuators could be of any other type such as, for example, a pinion and rack assembly.
  • Each leg 8 bow comprises a pair of legs 19 in the form of long bars and a deformable parallelogram mechanism comprising a pair of upper connecting rods 20, a pair lower rods 21 substantially parallel to the upper rods 20 and a pair of latches 22, each member of one pair being spaced from the other by spacers 23.
  • the upper rods 20 of the same pair are separated from each other by spacers 23 fixed at a first end 24 and at a second end 25 of the upper rods 20 , these spacers 23 forming axes of rotation allowing the passage legs 8, 9 from their working position to their rest position v (and reciprocally), as we shall see below.
  • the lower rods 21 of the same pair are spaced apart from each other by other spacers 23 fixed at a first end 24 and at a second end 25 of the lower links 21 , these spacers 23 also forming rotation axes allowing the legs 8, 9 to move from their working position to their rest position.
  • the pairs of rods 20, 21 are rotatably mounted relative to the pair of legs 19, the axis of rotation of each pair of rods 20, 21 relative to the pair of legs 19 being formed by the spacers 23.
  • the pairs of rods 20, 21 are rotatably mounted on a pair of latches 22, the axis of rotation of each pair of rods 20, 21 relative to the pair of latches 22 being also formed by the spacers 23.
  • Flip-flops 22 are flat pieces of substantially triangular shape which comprise, at each of their vertices, a hole to allow the rotation of flip-flops 22 relative to another element. Two of the holes rotate the flip-flops 22 relative to the connecting rods 20, 21, the third hole serving to rotate the flip-flops 22 on a pair of plates 26.
  • the plates 26 are integral with the hull 11 of the floating building 4 , being fixed there for example by welding.
  • a cylinder 17 for folding is rotatably mounted on the plates 26 and the pair of connecting rods 21 below. More precisely, the body of the folding ram 17 is articulated on the plates 26 and the rod of the folding cylinder 17 is articulated on the spacer 23 connecting the two lower links 21 at their second end 25.
  • An extension cylinder 18 is rotatably mounted on the pair of upper connecting rods 20 and on the pair of legs 19. Specifically, the body of the extension cylinder 18 is rotatably mounted via a new spacer 23 on the connecting rods. 20 , and the rod of the extension cylinder 18 is rotatably mounted, also via a new spacer 23, on the feet 19.
  • the bow legs 8 are synchronized in their displacement and connected to one another by the stirrer 10.
  • the cylinder 17 for folding makes it possible to move the bow legs 8 from their rest position to their working position and vice versa, the extension cylinder 18 allowing, in addition to the cylinder 17 for folding, to maintain the feet 19 of the bow legs 8 substantially vertical in their working position, that is to say substantially perpendicular to the deck 12 of the floating building 4 , this orientation of the bow legs 8 improving the efficiency of the agitator 10 as we see below.
  • each leg 9 of Stern comprises a pair of legs 19 in the form of long bars and a deformable parallelogram mechanism comprising a pair of connecting rods 20 above, a pair of connecting rods 21 lower substantially parallel to the connecting rods 20 upper and a pair of rods 27, each element of the same pair being separated from the other by spacers 23.
  • the upper rods 20 of the same pair are separated from each other by spacers 23 fixed at a first end 24 and at a second end 25 of the upper rods 20 , these spacers 23 forming axes of rotation allowing the passage 9 stern legs from their working position to their rest position (and vice versa), as we will see below.
  • the lower rods 21 of the same pair are spaced apart from each other by other spacers 23 fixed at a first end 24 and at a second end 25 of the lower links 21 , these spacers 23 also forming rotation axes allowing the passage of the stern legs 9 from their working position to their rest position (and vice versa).
  • the pairs of rods 20, 21 are mounted in rotation to the pair of feet 19, the axis of rotation of each pair of connecting rods 20, 21 with respect to the pair of feet 19 being formed by the spacers 23.
  • the pairs of rods 20, 21 are rotatably mounted on a pair of rods 27, the axis of rotation of each pair of rods 20, 21 with respect to the pair of links 27 being also formed by the rods 27. spacers 23.
  • the upper links 20 are, in line with their assembly with the rods 27, rotatably mounted on a pair of plates 26.
  • the plates 26 are connected to each other by a shaft, which is rotatably mounted about a vertical axis, on an arm integral with the hull 11 of the floating vessel 4 .
  • This rotational assembly of the stern legs 9 on the floating building 4 allows the stern legs 9 to be oriented by an angle A (measured in a horizontal plane) of approximately 45 ° with respect to the building edge 4 floating, in a direction opposite the floating building 4 , as is visible on the figure 6 .
  • This orientation of the stern legs 9 improves the stability of the dredge 1, as explained below.
  • a cylinder 17 for folding is rotatably mounted on the plates 26 and the pair of connecting rods 21 below. More precisely, the body of the folding ram 17 is articulated on the plates 26 and the rod of the folding cylinder 17 is articulated on the spacer 23 connecting the two lower links 21 at their second end 25.
  • an extension jack 18 is rotatably mounted on the pair of upper rods 20 and on the pair of legs 19.
  • the body of the extension cylinder 18 is rotatably mounted via a spacer 23, on the upper rods 20
  • the rod of the extension cylinder 18 is mounted in rotation, also via a spacer 23, on the feet 19.
  • the cylinder 17 for folding allows the passage of the legs 9 stern from their rest position to their working position and vice versa, the cylinder 18 extension allowing, in addition to the cylinder 17 folding, the deployment more 9 stern legs 19 feet far to improve the stability of dredge 1 during dredging operations.
  • the stirrer 10 clearly visible on the figures 5 and 8 , comprises a frame 28, a concentrator 29, a propeller 30 and a motor 31.
  • the frame 28 is made by an assembly of tubes, preferably of square profile, welded to each other so as to form a substantially parallelepipedal structure.
  • the ends of the tubes are not plugged so as to facilitate the entry and exit of water into the tubes, this movement of water in the tubes having the effect of facilitating the descent of the stirrer 10 at the bottom of the tube. the water without the air trapped in the tubes opposes the downward movement.
  • the frame 28 is rotatably mounted between the pairs of legs 19 of the two bow legs 8 , by means of blocks 32.
  • the rotation, which can then be performed by the frame 28, is a rotation about an axis substantially perpendicular to the extension of the feet 19 of the legs 8 of bow.
  • the concentrator 29 is in the form of a ring, it is rotatably mounted on the frame 28 of the stirrer by means of opposed fingers forming an axis of rotation of the concentrator 29 substantially perpendicular to the axis of rotation of the frame 28 compared to the feet 19 of the legs 8 of bow.
  • Agitator 10 admits a rotation around a horizontal axis H (lower detail medallion on the figure 5 ) and a rotation around a vertical V axis (upper detail medallion on the figure 5 ). These rotations can be combined, that is to say performed simultaneously.
  • the propeller 30 is for example of Kaplan type, the angle of inclination of the blades of the propeller 30 can be modified during use.
  • the hub 29 has an inner diameter slightly greater than the overall diameter of the propeller 30 so that the hub 29 acts as a fluid accelerator to generate a strong current to resuspend sediment 2 present in the water bottom 3 .
  • the stirrer 10 is advantageously provided with a rear grill 33 , fixed for example on the concentrator 29, or directly on the frame 28.
  • the motor 31, which drives the propeller 30 in rotation, is mounted for example on the gate 33 rear.
  • the dredge 1 further comprises a calculator 34 and sensors 35 attitude, heel and water level, to determine and control the movement of the legs 8, 9 automatically.
  • the sensors 35 detect heel, a plate or a lack of water, they return the information to the computer 34 which controls the cylinders 17, 18 to change the position of the legs 8, 9 to maintain the building 4 floating in. waterline.
  • connection between the computer 34, the sensors 35 and the legs 8, 9 is performed by a wireless link.
  • the dredge 1 can either move on the water thanks to its motors 14, or be transported, by land, on a truck, thanks to its reduced dimensions.
  • the feet 19 of the bow legs 8 and the stern legs 9 are substantially parallel to the deck 12, and the folding jack 17 and the extension jack 18 are respectively substantially in the maximum stroke position, c that is, the cylinder rod is out of the body, and in the minimum stroke position, i.e., the cylinder rod is retracted into the cylinder body.
  • the kinematics of deployment of the leg games 8, 9 is partially represented on the figure 9 , which more precisely represents the bow step 8 , equipped with the stirrer 10.
  • the rod of the cylinder 17 folding gradually enters his body, causing the rotation of the latches 22 relative to the floating building 4 .
  • the feet 19 are substantially vertical, that is to say substantially perpendicular to the deck 12 of the floating building 4
  • the rod of the extension jack 18 protrudes from its body in order to keep the legs 19 substantially vertical until the agitator 10 is in the dredged position.
  • the dredging position represented in figure 4 , is obtained when the stirrer 10 is close to the aquatic bottom 3 and the base 16 of the bow legs 8 is anchored in the aquatic bottom 3 .
  • the angle of inclination of the stirrer 10 can then be adjusted by rotating the frame 28 relative to the feet 19 on the one hand, then by rotation of the concentrator 29 relative to the frame 28 on the other hand.
  • the stirrer 10 is positioned so as to achieve effective remission of sediment 2 in suspension.
  • the rod of the cylinder 17 folding enters slightly in his body, causing the tilting of the rods 27 relative to the building 4 floating and directing the feet 19 of the legs 9 stern to the water.
  • the stern legs 9 can be pivoted up to 45 ° with respect to the floating building 4 , in the aim to increase the stability of the dredge 1.
  • the rod of the cylinder 17 folding can continue its entry into the body to direct the pairs of rods 20, 21 to the water.
  • the stem of the extension cylinder 18 can out of the body to separate the feet 19 of the pairs of rods 20, 21 until the feet 19 are anchored in the aquatic floor 3 .
  • the figure 3 represents the dredge 1 in a high position of dredging. In this position, the bow legs 8 and the stern legs 9 are both substantially submerged.
  • the sea level falls after the ebb tide.
  • they can be folded back to their rest position, on the control of the computer 34, so as to keep the building 4.
  • the figure 2 shows the drag 1 in an intermediate dredging position in which the bow legs 8 and the stern legs 9 are partially immersed, the base 16 of the legs 8, 9 still being anchored in the aquatic bottom 3 .
  • the figure 4 represents a dredging operation, and more precisely illustrates the effect of the agitator 10 on the aquatic background 3 .
  • the stirrer 10 When the base 16 of the bow legs 8 is anchored in the aquatic bottom 3 and the agitator 10 is actuated, the stirrer 10 generates a current which mixes the aquatic bottom 3 and causes the resuspension of the sediments packed in the bottom. 3 aquatic.
  • the current generated by the agitator 10 produces a sediment cloud 2, which is driven offshore by the sea currents accompanying the ebb tide.
  • the legs 8, 9 are folded back to their rest position, the retraction of the rod of the extension cylinder 18 in its body combined with the outlet of the rod of the cylinder 17 of folding its body causing the withdrawal of the base 16 of the legs 8, 9 out of the aquatic bottom 3 .
  • the legs 8, 9 are no longer anchored in the aquatic floor 3 , they are folded back to their rest position, in which the dredge 1 can be moved to another dredging site by land or sea, or be moored to a dock pending next use or displacement.
  • the dredge 1 includes only one leg 9 stern.
  • the single leg 9 is positioned in a central portion of the stern 6 of the dredge 1.
  • the single stern leg 9 is for example steerable +/- 20 ° with respect to the main direction of extension of the dredge 1, in order to maintain the stability of the latter, especially when the movement of the tide is perpendicular to the main direction of extension of the dredge 1.
  • the dredge 1 which has just been described has several advantages.
  • the dredge 1 is autonomous and can be used in any aquatic environment (sea, port, lake, river, ).
  • the dredge 1 With its legs 8, 9, the dredge 1 can stabilize, safely, in a dredging zone, even if it is away from a fixed anchor point.
  • the presence of the motors 14 makes it possible to move the dredge 1 without using an external element such as a tugboat or a boat for example.
  • the transport of the drag 1 is easy thanks to its small size.
  • the dredge 1 can be moved by sea with its engines 14 or by land using a simple truck, without having recourse to an exceptional transport convoy accompanied.
  • the drag 1 is reliable since it comprises protection elements of the propeller 30 of the stirrer 10 and that it limits the forces applied to the legs 8, 9 by following the level of the water when of a falling tide.
  • the building 4 is still floating, which limits the effort to be provided by the legs 8, 9 to support it.
  • the swiveling nature of the stern legs 9 makes it possible to move the support points away from each other, which increases the stability of the dredge 1 during the dredging operations, in particular in the face of the thrust generated by the agitator 10 .
  • the dredge 1 is relatively discreet and compact in situation. It does not present a nuisance or discomfort or inconvenience to the operation of a port, for the benefit of users who can navigate without difficulty in the port even during a dredging operation. Thanks to the exploitation of the tidal phenomenon, the systems of decontamination or the trucks for the transport of the evacuated sediments 2 are not necessary, for the benefit of the tranquility and the quality of life of possible residents.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Claims (10)

  1. Maschine (1) zur Dispersion von Sedimenten (2), die sich am Boden (3) eines Gewässers angesammelt haben, wobei diese Maschine (1) umfasst:
    - ein schwimmendes Schiff (4), das einen Bug (5) und ein Heck (6) aufweist,
    - eine Unterwasserstruktur (7), die mindestens einen Schenkel (8) und ein drehendes Rührwerk (10) aufweist, das auf dem Schenkel (8) montiert ist, wobei der Schenkel (8) im Verhältnis zu dem Schiff (4) zwischen einer Arbeitsposition, in der der Schenkel (8) ausgefahren ist, um sich am Boden (3) eines Gewässers zu verankern, und einer Ruheposition gelenkig montiert ist, in der der Schenkel (8) zu dem Schiff (4) hin eingefahren ist;
    wobei die Maschine (1) dadurch gekennzeichnet ist, dass:
    - die Unterwasserstruktur (7) mindestens ein Paar an Bugschenkeln (8) umfasst, die auf Seiten des Bugs (5) des Schiffes (4) montiert sind, und mindestens einen Heckschenkel (9), der auf Seiten des Hecks (6) des Schiffs (4) montiert ist;
    - das Rührwerk (10) zwischen den Bugschenkeln (8) montiert ist;
    - jeder Schenkel (8, 9) durch einen verformbaren Parallelogramm-Mechanismus gelenkig ist.
  2. Maschine (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass die Unterwasserstruktur (7) zwei voneinander unabhängige Heckschenkel (9) umfasst.
  3. Maschine (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der oder jeder Heckschenkel (9) im Verhältnis zu dem schwimmenden Schiff (4) ausrichtbar ist.
  4. Maschine (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass der oder jeder Heckschenkel (9) um einen Winkel ausrichtbar ist, der im Verhältnis zum schwimmenden Schiff (4) zwischen 0° und 45° enthalten ist.
  5. Maschine (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Rührwerk (10) einen Rahmen (28), einen Konzentrator (29), der in dem Rahmen (28) motiert ist, umfasst, und in dem ein Propeller (30) montiert ist.
  6. Maschine (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass der Rahmen (28) des Rührwerks (10) im Verhältnis zu einer im Wesentlichen senkrechten Achse zur Fußerweiterung (19) der Bugschenkel (8) schwenkbar ist.
  7. Maschine (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass der Konzentrator (29) im Verhältnis zu einer im Wesentlichen senkrechen Achse zur Achse, um die der Rahmen (28) im Verhältnis zu den Füßen (19) schwenkt, drehend auf dem Rahmen (28) montiert ist.
  8. Maschine (1) nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass das Rührwerk (10) ein hinteres Gitter (33) zum Schützen des Propellers (30) vor allen Festkörpern umfasst.
  9. Maschine (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass sie einen Rechner (34) und Sensoren (35) für Längsneigungswinkel, Schlagseite und Meeresspiegel besitzt, um die Bewegung der Schenkel (8, 9) automatisch zu bestimmen und zu steuern.
  10. Maschine (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass die Verbindung zwischen dem Rechner (34), den Sensoren (35) und den Schenkeln (8, 9) eine drahtlose Verbindung ist.
EP16760118.6A 2015-08-14 2016-07-22 Bagger zur dispersion von wassersedimenten Active EP3341530B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1557738A FR3040062B1 (fr) 2015-08-14 2015-08-14 Drague pour la dispersion de sediments aquatiques
PCT/FR2016/000125 WO2017029438A1 (fr) 2015-08-14 2016-07-22 Drague pour la dispersion de sédiments aquatiques

Publications (2)

Publication Number Publication Date
EP3341530A1 EP3341530A1 (de) 2018-07-04
EP3341530B1 true EP3341530B1 (de) 2019-11-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16760118.6A Active EP3341530B1 (de) 2015-08-14 2016-07-22 Bagger zur dispersion von wassersedimenten

Country Status (3)

Country Link
EP (1) EP3341530B1 (de)
FR (1) FR3040062B1 (de)
WO (1) WO2017029438A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107700568A (zh) * 2017-09-26 2018-02-16 中蓝（厦门）实业有限公司 海龟式挖泥船

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL144011B (nl) * 1971-04-15 1974-11-15 Konijn Machinebouw Nv Baggervaartuig dat een kraan draagt en over land verrijdbaar is.
US4073078A (en) * 1975-11-03 1978-02-14 Leitz Julius H Adjustable dredging and trenching apparatus
FR2631359A1 (fr) * 1988-05-11 1989-11-17 Weldon Thomas Dispositif pour le dragage de fonds aquatiques
US5249378A (en) * 1992-09-17 1993-10-05 Frame James A Hydraulic thrust producing implement
US5311682A (en) * 1993-01-07 1994-05-17 Sturdivant Charles N Hybrid dredge
GB2491571A (en) * 2011-05-28 2012-12-12 John Simon Blight Dredging system with internal water channels

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3040062B1 (fr) 2017-08-25
FR3040062A1 (fr) 2017-02-17
EP3341530A1 (de) 2018-07-04
WO2017029438A1 (fr) 2017-02-23

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