EP2596178A1 - Niveleuse destinée à traiter une surface sur le fond de la mer et procédé de traitement de la surface - Google Patents

Niveleuse destinée à traiter une surface sur le fond de la mer et procédé de traitement de la surface

Info

Publication number
EP2596178A1
EP2596178A1 EP11746448.7A EP11746448A EP2596178A1 EP 2596178 A1 EP2596178 A1 EP 2596178A1 EP 11746448 A EP11746448 A EP 11746448A EP 2596178 A1 EP2596178 A1 EP 2596178A1
Authority
EP
European Patent Office
Prior art keywords
pivoting
seabed
conveying direction
boom
arm
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Withdrawn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
EP11746448.7A
Other languages
German (de)
English (en)
Inventor
Klaus Weber
Bernd Breyer
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.)
STRABAG OFFSHORE WIND GMBH
Original Assignee
STRABAG Offshore Wind GmbH
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 STRABAG Offshore Wind GmbH filed Critical STRABAG Offshore Wind GmbH
Publication of EP2596178A1 publication Critical patent/EP2596178A1/fr
Withdrawn legal-status Critical Current

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
    • E02F3/08—Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain
    • E02F3/081—Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain mounted on floating substructures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • 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
    • E02F3/06—Dredgers; Soil-shifting machines mechanically-driven with digging screws
    • 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
    • E02F3/92—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 invention relates to a grading device for processing a surface on
  • Such foundations or even entire wind turbines are installed in the coastal area or offshore area with a sea depth of 20 m to 60 m.
  • This device consists of an annular guide with attached feet, by means of which the guide on the seabed is deposited.
  • a vertical pipe is provided, which projects beyond the water level and wings, which are rotatably mounted on the tube and guided at one end to the guide. Through the tube material is filled, which is distributed by means of the wings on the seabed.
  • the material of the seabed is essentially sand, which is loosely to moderately dense in the upper area and dense to very dense at greater depths.
  • the soil In the upper part of the sandy bottom but also has variable silt portions, which can be up to 30% (very silty sand).
  • the soil In places, the soil is also interspersed with silt, clay and peat layers.
  • On the load-bearing material On the load-bearing material is usually a soft top layer of various sediments such as silt or the like.,
  • the carrying capacity for the installation of the wind turbine by means of the flat foundation is not sufficient.
  • it has also been proposed to produce an excavation pit on the seabed, the bottom or sole of which is made of viable material of the seabed. For the wind turbine to meet the requirements of the accuracy of the alignment, a corresponding level surface plan at the bottom of the pit is required.
  • the invention is therefore an object of the invention to provide a suitable for the processing of an area of the seabed in the offshore area of the grading specified in the preamble of claim 1 genus, with a simple way very precisely a horizontal level surface can be made.
  • a leveling device having the features of claim 1 and by a method having the features of claim 10.
  • a horizontal, flat plane surface of about 45 m in diameter can be produced in a simple manner, without the introduction of hard material such as gravel is required.
  • a level accuracy with deviations from the nominal height of approx. ⁇ 5 cm is achieved.
  • the level surface is preferably formed in a previously excavated excavation.
  • the pivoting boom comprises offset by 180 ° arranged floor conveyor, wherein preferably the floor conveyor are each provided with a trailing blade arranged in the direction of rotation of the pivot boom.
  • the two floor conveyors transport the material on the shortest path, so that a high removal rate is achieved.
  • Fine grading serve in the direction of rotation of the pivot boom trailing arranged bulldozer.
  • a first embodiment variant is designed so that the floor conveyor have a conveying direction radially to the outer end of the pivoting arm.
  • This procedure is particularly suitable for the removal of the loosened sediment, which must be removed before working soil removed or the excavation is leveled.
  • This discharge direction is also supported by the rotation of the pivoting jib.
  • Around the excavation around or on the embankment is given sufficient space to deposit eroded material.
  • the excavation is in this variant according to the expected removal, which must be deposited, created slightly larger. There may be provided additional conveyors that carry the material over the embankment of the excavation, so that no material again
  • Slope can slide down.
  • a pumping line is arranged and this is associated with a delivery unit, wherein the bottom conveyor have a conveying direction radially to the center of the pivot boom and the funded by the bottom conveyors material is discharged through the pumping line.
  • the carrying device comprises a
  • Central structure and the lattice boom to form a support structure are advantageous taking into account the weight and the required stability.
  • central, vertical opening preferably extends the pumping line, and also it is expedient to arrange the delivery unit in this opening.
  • the support structure comprises three lattice beams, at the outer ends of which outer supports are provided, under which the feet are mounted in the form of foot plates.
  • outer supports devices for height adjustment are provided so that an exactly horizontal adjustment of the support structure is possible.
  • Lattice boom are pivotally mounted on the central structure. As a result, the lattice outriggers can be brought into a position suitable for transporting the planing device or placing it on a civil engineering vessel.
  • Fig. 2 is a top view of the arrangement of FIG. 1, wherein the
  • 3 is a plan view of the grading device in the excavation
  • FIG. 4 is a schematic representation of a section through a support structure and underneath arranged pivoting arm of the planing device
  • Fig. 5 is a plan view of the support structure in the lowered position
  • Fig. 6 is an enlarged view of the section of FIG. 4 with
  • Fig. 7 shows a variant of FIG. 6, wherein the pivot arm
  • FIG. 8 is a view according to FIG. 5, wherein two lattice beams of
  • Support structure are placed in a transport position of the dozer.
  • a civil construction ship 1 is shown in the offshore area on a seabed 2, wherein based on a water surface 5, the depth of the seabed 2, for example, 20 m to 60 m.
  • a pit 3 with an embankment 4.
  • the pit 3 is preferably produced by gripper dredge and may for example have a depth of three meters to five meters relative to the level of the seabed 2.
  • Greifrungshub comes also a suction of the material of the seabed into consideration.
  • the civil engineering vessel 1 is arranged with a crane 6 and with one at the stern of the civil engineering ship 1
  • Carrying device 7 is equipped, which optionally serve to lower a scraper 8 from the civil engineering ship 1 in the excavation 3 or lift again after the grading and turn off on the foundation craft 1. From the planing device 8, a pumping line 9 leads upwards beyond the water surface 5 to the civil engineering ship 1, in which the solid material conveyed through the pumping line 9 is received.
  • planing device 8 Before the planing device 8, as shown in Fig. 1, is lowered into the excavation, the planing device 8 is stationed on the aft of the civil engineering ship 1 and by means of the pivotally mounted on the civil engineering vessel 1 carrying device 7, the of
  • Hydraulic cylinders 12 is actuated, lifted and pivoted about the water surface 5. Alternatively, this can also be done by means of the crane 6. Thereafter, the grading device 8, when it is located above the pit 3, lowered into this.
  • the positioning within the excavation 3 via a leveling device 8 installed position measuring system which allows the correction of a drift in the lowering process by means of position correction of the civil engineering ship 1 by a dynamic positioning system and / or Krarmach entry.
  • a hydroacoustic reference system between the civil engineering vessel 1 and the planing device 8 is used for measuring the position of the leveling device 8.
  • the civil engineering vessel 1 is a preferably extendable transmitting and Receiving unit provided. On the dozer 8 permanently installed transponder can be attached.
  • a GPS reference station is installed, which provides a correction signal, taking into account the position reference.
  • the transmitting and receiving unit makes it possible to send signals from the civil engineering vessel 1 to the GPS reference station on the transformer station, as well as transmitted signals z. B. with respect to the position of the dozer 8 for civil engineering ship 1 to receive.
  • the carrying device 7 essentially consists of two longitudinal members 10 arranged at the stern of the civil engineering ship 1 and a cross member 11 fastened at the ends remote from the stern.
  • Civil engineering boats 1 are mounted.
  • the position of the carrying device 7 in FIG. 2 corresponds to that in FIG. 1, which is suitable for depositing the leveling device 8 into the excavation 3 on the seabed 2.
  • the excavation 3 is circular and is surrounded by the embankment 4 in an annular manner.
  • Fig. 3 shows an enlarged view of a plan view of the dozer 8 in the pit 3, at the bottom or sole of the required planum is to produce.
  • the grader 8 comprises a support structure 13 and a pivoting arm 14 rotatable about a vertical axis.
  • the support structure 13 consists of a grid-shaped central structure 15 which has a vertical central opening 16 and the outer shape of which in plan view forms an essentially equilateral triangle.
  • three lattice beams 17 are arranged at a uniform angular distance at the free ends of outer supports 18 are provided with foot plates 19.
  • the foot plates 19 prevent sinking of the dozer 8 in the ground.
  • the pivoting boom 14 comprises two offset by 180 ° arranged bottom conveyor 20 with a trailing in the direction of rotation 21 skimmer blade 22.
  • the bottom conveyor 20 are designed so that they have a linear conveying direction to the outer end or center of the pivot arm 14.
  • One possible embodiment provides that the Conveying capacity of the bottom conveyor 20 toward the center increases in order to absorb the additional material from the circumference and can be transported on.
  • Such a configuration allows a faster rotation of the pivot arm 14.
  • Under the central structure 15, a turntable 23 is attached to this, wherein on the turntable of the pivoting boom 14 and its drive units are mounted for movement along the turntable. The to be processed by the pivoting boom 14
  • the excavation surface of excavation pit 3 has a diameter of approximately 45 meters. Therefore, the lattice beams 17 must have such a length, through which the
  • Outer supports 18 with the foot plates 19 are outside the flat surface and are located at the foot of the slope 4.
  • a section through the support structure 13 is schematically shown, along a line IV / l in Fig. 3 by two lattice beams 17 and along a line IV / 2 in Fig. 3 by the pivoting arm 14.
  • the central opening 16 is formed through which the lower end of the pumping line 9 extends.
  • the pumping line 9 runs coaxially to a vertical axis A, which forms the axis of rotation for the pivoting boom 14.
  • a delivery unit 24 preferably a
  • the drive units are preferably arranged diametrically.
  • the swing boom 14 consists of the two floor conveyors 20, remove the material at the bottom of the excavation and promote the lower end of the pump line 9. From Fig. 4 it is also clear that the Conveying direction of the floor conveyor 20 is linear to the outer end or the center of the pivot arm 14.
  • FIG. 5 shows a plan view of the leveling device 8 with the support structure 13 and the pivoting arm 14. It can be seen that preferably two puncture cones 25 are provided on each foot plate 19.
  • the pivoting arm 14 is rotated by the drive units 26 shown in FIG. 4 for machining the bottom of the excavation pit 3 in the direction of the arrow 21, so that the leveling blades 22 are arranged trailing the floor conveyors 20. Incidentally agree for the same parts
  • Fig. 6 shows an enlarged view of the section of FIG. 4, wherein the bottom conveyor are designed as a chain conveyor 27.
  • These chain conveyors 27 carry an upper layer of the material at the bottom of the excavation and promote it in the conveying direction of the arrows 28 to the lower end of the pump line 9.
  • devices for height adjustment are provided, preferably hydraulic cylinders, so that the grading device can be adjusted in a horizontal position.
  • the same reference numerals agree with those of FIG. 4 for the same parts.
  • FIG. 7 shows an alternative embodiment to FIG. 6, in which the bottom conveyors are designed as screw conveyors 29.
  • the screw conveyors 29 are associated with drive means 30 which set the worm in rotation about its longitudinal axis and thus the worm conveyors 29 ablate an upper layer of the material at the bottom of the excavation and promote in the conveying direction according to arrows 28 * to the outer end of the pivot boom 14.
  • a reversal of the conveying direction is possible.
  • the reference numerals for the same parts with those of FIG. 6 match.
  • Fig. 8 shows the planing device 8 in a transport position, which occupies the dozer, to be deposited on the civil engineering ship 1 shown in Fig.
  • two lattice beams 17 are pivoted such that they extend at least approximately parallel to one another with respect to their longitudinal central axes.
  • the pivoting arm 14 is approximately in the longitudinal direction of the non-pivoted
  • Lattice boom 17 * aligned As can be seen from Fig. 8, the lattice beams 17 are attached to the central structure 15 by means of a pivot bearing 31 to which the
  • the lattice booms 17 have further attachment points 32, which are for connection to the central structure 17
  • Receivers 33 are provided.
  • pivoting pivot cylinder serve 34, which are hinged on the one hand to the lattice boom 17 and on the other hand attached to the central structure 15.
  • the reference numerals correspond to like parts with those of the other figures.
  • the dozer 8 is lifted for example by means of the support device 7 from the deck of the civil engineering ship 1 and swung over the stern of the civil construction ship until the dozer 8 completely floats above the water surface 5. Then, the lattice beams 17 are moved by the swing cylinders 34 in a position in which the attachment points 32 are in the receptacles 33. This position can be secured with locking means. The grader 8 is lowered, wherein the positioning relative to the excavation 3 via an installed on the planer 8 position measuring system that allows the correction of a lettering during lowering. When placing the foot plates 19, the puncture cones 25 penetrate into the bottom at the bottom of the
  • Embankment 4 whereby the support structure 13 is secured against rotation during operation of the dozer 8.
  • puncture cones can also also be used.
  • Adjustment by the devices for height adjustment in the outer supports 18 takes place.
  • These devices are preferably hydraulic cylinders.
  • a measuring rotation of the pivot arm 14 is performed to detect the actual situation, with distance sensors (multi-channel sounder) the distance to the excavation bottom is measured. Subsequently, the swing arm 14 is rotated back to the starting position, ie forward or backward. Then the grading device 8 is lowered by height adjustment of the outer supports 18, so that the bottom conveyor 20 can pierce into the material of Baugrubensohle. The floor conveyors 20 are put into action, and there is a rotation of the pivot arm 14 in the direction of arrow 21.
  • the floor conveyor 20 promote the removed material either to the outer ends of the pivot boom 14 or in the central region of the dozer 8, the material there as a mixture is received with seawater from the pumping line 9 and conveyed by the delivery unit 24 through the pumping line 9 upwards.
  • the solids are separated from the seawater and then fed to the civil engineering vessel 1.
  • the bottom conveyors 20 trailing arranged bulldozer 22 cause a particularly fine leveling of the processed from the bottom conveyors 20 excavation pit bottom.
  • Schwenkauslegers should be at least 360 °, advantageous are rotational movements of about 380 °. Of course, rotary movements that are even larger, possible. In this working cycle, for example, about 380 °, a layer of about 300 mm is removed.
  • the planer 8 works fully automatically, Wegemesstechnisch and sensory. In the course of the grading work, it is additionally possible to observe the device functions and the progress of work within the visual limits by means of an underwater camera or a high-resolution sonar.
  • Control unit and the associated monitors are the associated monitors.
  • the grader is equipped with an emergency system that allows the supply lines (power cables, control cables) to be knocked off, the pumping line and the rope to raise the grader in a set-down position.
  • the cable ends are kept in a buoy and can be resumed at a later date.
  • the grader 8 may be designed, for example, for the following characteristics:
  • the support structure 13 comprises the latticed central structure 15 and the lattice beams 17, 17 *, the turntable 23 being mounted below the central structure 15.
  • the turntable 23 being mounted below the central structure 15.
  • Slewing ring 23 mounted pivoting arm 14 two drive units 26 are provided. These drive units 26 are preferably arranged diametrically in order to bring the torque as evenly as possible on the pivoting boom 14.
  • the ground conveyors 20 provided on the pivoting boom 14 are in particular as
  • Screw conveyor 29 or chain conveyor 27 is formed.
  • the foot plates 19 are provided on their underside preferably with two puncture cones 25 or penetrating into the ground metal aprons.
  • the delivery unit 24 is advantageously received in the central opening 16 of the central structure 15, because in this way the delivery unit with simple
  • Fasteners are held mechanically fixed in the central structure 15.
  • a delivery unit 24 is preferably provided at least one solid pump.
  • the support structure 13 Due to the large dimensions of the support structure 13, which is at least about 50 m in diameter because of the length of the pivot arm 14 of about 45 m, it is advantageous to provide a way to the support structure 13 in a
  • pivotally mounted on the central structure 15 lattice boom 17 are suitably secured by means of pivot bearings on the central structure 15, and for pivotal movement in each case a pivoting cylinder 34 is provided.
  • the pivoting means With regard to the method for processing the surface on the seabed or in the excavation, it is advantageous before the operation of the pivoting means an adjustment of the Carrying support structure 13 in an exactly horizontal position.
  • the floor conveyors should be put into operation to convey material to the center of the pivoting boom 14, and at the same time the pivoting boom 14 are rotated about the vertical axis A.
  • Another advantage is given when, after the work cycle, ie reaching the maximum rotational movement or the rotational angle, a return or further rotation of the pivot arm 14 with simultaneous control measurement of the machined surface. It is considered appropriate that per working cycle a removal of the material of about 300 mm takes place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Shovels (AREA)

Abstract

L'invention concerne une niveleuse (8) destinée à traiter une surface sur le fond de la mer (2) dans le domaine offshore, comprenant un dispositif porteur muni de pieds pour s'appuyer sur le fond de la mer (2) et un dispositif pivotant monté sur le dispositif porteur. Le dispositif pivotant peut pivoter autour d'un axe vertical (A). Pour réaliser une surface plane précise de manière simple, la niveleuse (8) est configurée de telle sorte que le dispositif pivotant est réalisé sous la forme d'une flèche orientable (14) et sur la flèche orientable (14) est installé au moins un engin de déplacement du sol (20) dont le sens de convoyage est linéaire et qui enlève le matériau du fond de la mer. Selon l'invention, le matériau est transporté horizontalement dans le sens radial le long de la flèche orientable (14).
EP11746448.7A 2010-07-21 2011-07-16 Niveleuse destinée à traiter une surface sur le fond de la mer et procédé de traitement de la surface Withdrawn EP2596178A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010031781A DE102010031781A1 (de) 2010-07-21 2010-07-21 Planiergerät zur Bearbeitung einer Fläche am Meeresboden und Verfahren zur Bearbeitung der Fläche
PCT/EP2011/003557 WO2012022403A1 (fr) 2010-07-21 2011-07-16 Niveleuse destinée à traiter une surface sur le fond de la mer et procédé de traitement de la surface

Publications (1)

Publication Number Publication Date
EP2596178A1 true EP2596178A1 (fr) 2013-05-29

Family

ID=44503698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11746448.7A Withdrawn EP2596178A1 (fr) 2010-07-21 2011-07-16 Niveleuse destinée à traiter une surface sur le fond de la mer et procédé de traitement de la surface

Country Status (3)

Country Link
EP (1) EP2596178A1 (fr)
DE (1) DE102010031781A1 (fr)
WO (1) WO2012022403A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019245503A2 (fr) * 2018-04-26 2019-12-26 Aras Deniz Insaat Anonim Sirketi Équipement sous-marin modulaire et polyvalent pouvant effectuer un dragage et un nivellement à une sensibilité et une vitesse élevées avec commande à distance
CN114293604B (zh) * 2022-02-21 2024-04-09 兰州农之品生态科技有限公司 一种沙土平整设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD92878A (fr) *
US3675348A (en) * 1971-06-01 1972-07-11 Ernest Blaney Dane Jr Scraper bucket apparatus for deep sea mining systems
IT1071930B (it) * 1977-04-01 1985-04-10 Tecnomare Spa Sistema di raccolto di minerali dal fondo marino
DE2924364A1 (de) * 1979-06-16 1980-12-18 Krupp Gmbh Mit einem hauptfahrzeug verbundenes geraet zum abbauen von auf dem meeresboden befindlichen materialien
DE3525725A1 (de) * 1985-07-18 1987-01-22 Dyckerhoff & Widmann Ag Verfahren und vorrichtung zur herstellung eines unterbaus und eines darauf zu verlegenden fundaments unter wasser
DE102005006988A1 (de) 2005-02-15 2006-08-17 Ed. Züblin Ag Flächengründung, bevorzugt aufgelöst, für Offshore-Windenergieanlage
DE102006034461B4 (de) * 2005-08-31 2008-12-11 Josef Möbius Bau-Aktiengesellschaft Vorrichtung zum Planieren und Einbringen und Verteilen von Schüttmaterial auf einer planierten Fläche auf dem Meeresboden sowie Verfahren zur Herstellung eines planen Schotterbettes auf dem Meeresboden

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2012022403A1 *

Also Published As

Publication number Publication date
DE102010031781A1 (de) 2012-01-26
WO2012022403A1 (fr) 2012-02-23

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