EP0892116A1 - Tête de draguage pour une drague suceuse à trémie entraínée et procédé de draguage utilisant cette tête de draguage - Google Patents

Tête de draguage pour une drague suceuse à trémie entraínée et procédé de draguage utilisant cette tête de draguage Download PDF

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Publication number
EP0892116A1
EP0892116A1 EP98870161A EP98870161A EP0892116A1 EP 0892116 A1 EP0892116 A1 EP 0892116A1 EP 98870161 A EP98870161 A EP 98870161A EP 98870161 A EP98870161 A EP 98870161A EP 0892116 A1 EP0892116 A1 EP 0892116A1
Authority
EP
European Patent Office
Prior art keywords
drag head
teeth
jet pipes
visor
series
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.)
Granted
Application number
EP98870161A
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German (de)
English (en)
Other versions
EP0892116B1 (fr
Inventor
Stefaan Vandycke
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.)
Dredging International NV
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Dredging International NV
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 Dredging International NV filed Critical Dredging International NV
Priority to EP05016382A priority Critical patent/EP1609916B1/fr
Publication of EP0892116A1 publication Critical patent/EP0892116A1/fr
Application granted granted Critical
Publication of EP0892116B1 publication Critical patent/EP0892116B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • E02F3/9262—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with jets
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
    • E02F5/108—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water using suction-effect devices

Definitions

  • This invention relates to a drag head for a trailing suction hopper dredger which essentially consists of a structure connected to a suction pipe, with a visor rotating around an horizontal axis, in which a series of teeth are applied for breaking up the sand, which are fitted on a toothed beam extending perpendicularly with reference to the direction of motion of the drag head, and a series of jet pipes for injecting water under high pressure, extending parallel to said toothed beam and in front of these teeth, always when considering the direction of motion of the drag head.
  • a trailing suction hopper dredger consists of a structure connected to a suction pipe, which is open at the bottom side and is dragged over the ground during dredging.
  • the drag head itself consists of two parts: a cap which is directly connected to the suction pipe of the ship, and a visor which is hingingly connected to the cap by means of an horizontal axis.
  • a series of teeth 4 are applied on an horizontal beam in order to break up the ground.
  • Such a beam is known as a toothed beam.
  • a series of wear heel pieces are applied. These form the heel plate. In these wear heel pieces a number of nozzles are provided.
  • the sand to be dredged consists of piled up grains. By their own weight, these are pressed onto each other. This pressure is transferred between the grains by the mutual points of support, being the points of contact between the grains.
  • this equilibrium has to be disturbed. This may be achieved by using the jets: by feeding water under high pressure, the mutual pressure between the grains may be removed. By this, the force which keeps the grains on each other is removed, causing the grains to start moving. These grains try to reach another state of equilibrium, and this is called the fluidisation of the sand. Now, only this sand has yet to be sucked up, which may be achieved by the underpressure built up in the drag head.
  • the jets serve to loosen up the sand and that the suction force of the dredging pump serves for the transport of the loosened up sand.
  • Trailing hoppers which correspond to the above given description are known.
  • At least one second series of jet pipes is provided behind the above said teeth.
  • the above said second series of jet pipes is subdivided in jet pipes directed at the inside of the visor, more particularly at above said teeth, and in jet pipes which are directed vertically or substantially vertically downwards.
  • Figure 1 is a schematic side view of the dredge head according to the invention.
  • Figure 2 is, at a bigger scale, a perspective representation of the dredge head according to the invention.
  • Figure 3 schematically illustrates the operational depth of a drag head of the known type.
  • Figure 4 in the same way illustrates the possible operational depth of a drag head according to the invention.
  • the drag head for a trailing suction hopper dredger according to the invention is moved over the bottom in the direction of arrow P which is shown in figure 1.
  • the drag head according to the invention is found at the end of a suction pipe 1 which is equipped with a visor 2 consisting a.o. of side walls 3, a back wall 3', a top plate 4 with an arc-shaped section 5, which upon rotation of the visor 2 around its axis 6 remains in close contact with the sealing strip 7 belonging to the fixed parts which are fitted to the suction pipe.
  • a visor 2 consisting a.o. of side walls 3, a back wall 3', a top plate 4 with an arc-shaped section 5, which upon rotation of the visor 2 around its axis 6 remains in close contact with the sealing strip 7 belonging to the fixed parts which are fitted to the suction pipe.
  • a second series of jet pipes is now provided. These jet pipes are subdivided into a first series of jet pipes 12 which are directed towards the teeth 10, and a second series of jet pipes 12' which are directed vertically or substantially vertically downwards.
  • the jets injected through jet pipes 12 are directed towards the inside of the visor.
  • the jet pipes 12' are aimed at fluidising the bottom better, i.e. deeper at the height of the back wall 3'.
  • the different jet pipes 12, 12' immediately link up with a water valve 11 which may be moved, and this according to a translation which occurs in a plane that runs parallel to the back wall 3' of the visor.
  • This water valve 11 is designed in the shape of a water chamber 13. In case of hydraulic operation, this is carried out from the bridge of the trailing suction hopper dredger.
  • the fitting of the water valve which is adjustable in the height direction, increases the efficiency of the new drag head, because the water gap may be optimally adjusted as a function of the soil conditions and totally independent from the penetration of the bottom by the visor.
  • the efficiency of the trailing suction hopper dredger is further increased by applying at the bottom of the side walls 3 of the visor, one or a series of several lateral knife-shaped wear strips 14. These wear strips are sufficiently thin to penetrate into the sand in order to realise the desired sealing, so that the ratio sand/water of the sucked off mixture is further optimised.
  • the drag head In order to prevent feed water from being fed along the relatively unproductive sides of the visor, the drag head has to be well sealed at these sites.
  • the side walls of the visor should well penetrate into the bottom.
  • the visor By the presence of thinly walled wear strips 14, the visor is laterally perfectly sealed, so that the required transport water is integrally sucked up at the back through the water gap and the agitated soil.
  • This new layout forms a second important feature of the invention.
  • a further improvement of the drag head should be seen in the presence at the back side of the drag head of the feet 15 hinging with respect to the visor, the useful surface of which, i.e. the base 15', is sufficiently great to guarantee a fixed support on the bottom.
  • the depth of the feet 15, which are mutually connected by a plate 17 (figure 2) By regulating the depth of the feet 15, which are mutually connected by a plate 17 (figure 2), the penetration of the visor and thus of the teeth into the soil is regulated. This allows to regulate the cutting thickness of the teeth and this independently from the water gap.
  • feet 15, with their widened bases 15' are rotatably fitted around hinge point 18. The rotation is effectuated by the action of the hydraulic cylinder 16, with hinge point 18 with respect to the feet 15 and hinge point 19 with respect to the visor.
  • the visor itself is lifted or lowered by the action of hydraulic cylinder 20.
  • the cylinder 20 is rigidly fastened with respect to the suction pipe 1 and is in 21 hingingly connected to fixed parts belonging to the structure of the visor, in order to lift or lower the back wall 3' thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Earth Drilling (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Manipulator (AREA)
  • Nozzles (AREA)
  • Soil Working Implements (AREA)
  • Coating Apparatus (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Casting Devices For Molds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Shovels (AREA)
  • Hydraulic Turbines (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP98870161A 1997-07-17 1998-07-17 Tête de draguage pour une drague suceuse à trémie entraînée et procédé de draguage utilisant cette tête de draguage Expired - Lifetime EP0892116B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05016382A EP1609916B1 (fr) 1997-07-17 1998-07-17 Tête de dragage pour une drague suceuse à trémie entraînée et procédé de dragage utilisant cette tête de dragage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9700625A BE1011285A3 (nl) 1997-07-17 1997-07-17 Sleepkop voor een sleephopperzuiger en werkwijze voor het baggeren met behulp van deze sleepkop.
BE9700625 1997-07-17

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP05016382A Division EP1609916B1 (fr) 1997-07-17 1998-07-17 Tête de dragage pour une drague suceuse à trémie entraînée et procédé de dragage utilisant cette tête de dragage.

Publications (2)

Publication Number Publication Date
EP0892116A1 true EP0892116A1 (fr) 1999-01-20
EP0892116B1 EP0892116B1 (fr) 2006-01-18

Family

ID=3890649

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05016382A Expired - Lifetime EP1609916B1 (fr) 1997-07-17 1998-07-17 Tête de dragage pour une drague suceuse à trémie entraînée et procédé de dragage utilisant cette tête de dragage.
EP98870161A Expired - Lifetime EP0892116B1 (fr) 1997-07-17 1998-07-17 Tête de draguage pour une drague suceuse à trémie entraînée et procédé de draguage utilisant cette tête de draguage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05016382A Expired - Lifetime EP1609916B1 (fr) 1997-07-17 1998-07-17 Tête de dragage pour une drague suceuse à trémie entraînée et procédé de dragage utilisant cette tête de dragage.

Country Status (9)

Country Link
EP (2) EP1609916B1 (fr)
AT (1) ATE415524T1 (fr)
BE (1) BE1011285A3 (fr)
CY (1) CY1110897T1 (fr)
DE (2) DE69833248T2 (fr)
DK (2) DK1609916T3 (fr)
ES (2) ES2319781T3 (fr)
HK (1) HK1090398A1 (fr)
PT (2) PT892116E (fr)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19960361A1 (de) * 1999-12-14 2001-06-21 Krupp Foerdertechnik Gmbh Schleppkopf für Saugbagger
NL1020521C2 (nl) * 2002-05-02 2003-11-04 Bos & Kalis Baggermaatsch Sleepzuiger en sleepkop daarvoor.
BE1015911A3 (nl) * 2004-02-19 2005-11-08 Dredeco Pty Ltd Sleepkop en hopperzuiger.
BE1016085A5 (nl) * 2004-06-23 2006-02-07 Dredging Int Sleepkop voor een sleephopperzuiger en werkwijze voor het baggeren met behulp van deze sleepkop.
EP1653010A1 (fr) * 2004-10-26 2006-05-03 Ihc Holland N.V. Procédé sous-marin de dragage et dispositif pour celui-ci
WO2009068412A1 (fr) * 2007-11-29 2009-06-04 Dredging International Bec d'élinde d'une drague aspiratrice traînante et procédé pour le dragage à l'aide de ce bec d'élinde
WO2010066757A1 (fr) * 2008-12-12 2010-06-17 Dredging International N.V. Tête de dragage pour drague à trémie aspiratrice arrière et procédé de dragage utilisant cette tête de dragage
WO2010079193A1 (fr) 2009-01-10 2010-07-15 Dredging International N.V. Dispositif excavateur pour creuser le sol sous l'eau, et procédé pour creuser le sol
WO2012104314A1 (fr) * 2011-02-02 2012-08-09 Baggerwerken Decloedt En Zoon Tête d'aspiration pour un navire de dragage et procédé pour le dragage à l'aide de ladite tête d'aspiration
WO2013108131A1 (fr) 2012-01-16 2013-07-25 Baggerwerken Decloedt En Zoon Embout de dragage pour un engin de dragage et procédé associé
BE1020438A4 (nl) * 2012-05-21 2013-10-01 Baggerwerken Decloedt En Zoon Zuigkop voor een baggerschip en werkwijze voor het baggeren met behulp van deze zuigkop.
WO2013174932A1 (fr) 2012-05-25 2013-11-28 Baggerwerken Decloedt En Zoon Bec d'élinde d'une drague aspiratrice en marche et procédé pour le dragage à l'aide de ledit bec d'élinde
NL2011961C2 (en) * 2013-12-13 2015-06-16 Ihc Holland Ie Bv Modular visor for a drag head.
CN104818739A (zh) * 2015-05-05 2015-08-05 明光市留香泵业有限公司 海底吸沙作业专用抽吸盾头
BE1022377B1 (nl) * 2015-02-18 2016-03-18 Baggerwerken Decloedt En Zoon N.V. Zuigkop van een baggerschip en werkwijze voor het baggeren met behulp van deze zuigkop
CN106193157A (zh) * 2016-08-31 2016-12-07 中交烟台环保疏浚有限公司 耙吸挖泥船用耙头
CN106836342A (zh) * 2017-01-24 2017-06-13 黄河水利委员会黄河水利科学研究院 一种破土射流冲吸式吸泥头
CN108265767A (zh) * 2018-04-04 2018-07-10 长江南京航道工程局 挖泥船破碎耙头装置
CN108331060A (zh) * 2018-04-04 2018-07-27 长江南京航道工程局 挖泥船水刀耙头装置
CN108396807A (zh) * 2018-04-04 2018-08-14 长江南京航道工程局 挖泥船水翼耙头装置
CN108824532A (zh) * 2018-07-05 2018-11-16 长江南京航道工程局 一种自动调节转动角的自航耙吸式挖泥船耙头
WO2018236213A2 (fr) 2017-06-22 2018-12-27 Baggermaatschappij Boskalis B.V. Drague à trémie à aspiration arrière dotée d'un système de recyclage pour effluent et procédé de dragage par aspiration
CN109629622A (zh) * 2019-01-10 2019-04-16 中交上海航道局有限公司 一种耙吸式挖泥船耙头
CN109914505A (zh) * 2019-04-12 2019-06-21 中交天航滨海环保浚航工程有限公司 带有可拆卸格栅的耙吸挖泥船耙头结构
CN113638457A (zh) * 2021-07-28 2021-11-12 唐丽铭 一种耙吸式挖泥船用耙头

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CN102330443A (zh) * 2011-07-14 2012-01-25 中交天津港航勘察设计研究院有限公司 一种耙吸挖泥船用粘土耙头
CN103195119A (zh) * 2013-03-29 2013-07-10 武汉武船海洋工程船舶设计有限公司 一种小型主动耙头
CN106677240A (zh) * 2016-11-22 2017-05-17 中交疏浚技术装备国家工程研究中心有限公司 一种用于疏浚饱和密实粉细砂与粉土的方法
CN107165216A (zh) * 2017-07-18 2017-09-15 中港疏浚有限公司 高压冲水耙头
CN110056031A (zh) * 2019-03-05 2019-07-26 中船第九设计研究院工程有限公司 一种耙吸挖泥船高压冲水系统
CN111395433B (zh) * 2020-04-20 2022-04-26 中交疏浚技术装备国家工程研究中心有限公司 新型一体式高效耙头
CN111395434B (zh) * 2020-04-20 2022-03-18 中交疏浚技术装备国家工程研究中心有限公司 耙吸挖泥船
CN111472405B (zh) * 2020-05-11 2020-11-24 日照市东港区水务集团有限公司 一种用于河床底部清理淤泥的机头
CN112575836A (zh) * 2020-12-03 2021-03-30 浙江理工大学 空化射流淤泥清理装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1312032A (en) * 1970-01-19 1973-04-04 Koninkl Mij Tot Het Uitvoeren Hopper suction dredges
EP0075358A1 (fr) * 1981-09-17 1983-03-30 Ihc Holland N.V. Procédé pour aspirer de la terre ou de la vase par une drague suceuse à trémie et une drague suceuse pour la mise en oeuvre de ce procédé
JPS6055133A (ja) * 1983-09-02 1985-03-30 Kokusai Denshin Denwa Co Ltd <Kdd> 水底溝掘削機
EP0142881A1 (fr) * 1983-10-28 1985-05-29 Ihc Holland N.V. Dispositif pour raccorder une tête de draguage à une conduite aspirante
DE3817213C1 (en) * 1988-05-20 1989-01-12 Peter 2244 Suederdeich De Pautz Hydraulic harrow
EP0668406A1 (fr) * 1994-02-21 1995-08-23 Krupp Fördertechnik GmbH Procédé et dispositif pour l'aspiration du sol sous-marin

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB355005A (en) * 1930-08-06 1931-08-20 John Reid Improvements in suction dredge heads
CA1142692A (fr) 1978-02-24 1983-03-08 Union Carbide Corporation Dispositifs, materiaux et methodes appliques a l'orthopedie
SU1573101A1 (ru) * 1987-12-01 1990-06-23 Предприятие П/Я В-2522 Волочащийс грунтоприемник землесосного снар да
DE3810932A1 (de) * 1988-03-31 1989-10-19 Alexander Muehlstaedter Saugbagger-mundstueck
DE4226492A1 (de) * 1991-12-24 1993-07-01 Muesing Anton Gmbh Co Kg Verfahren und vorrichtung zum vergroessern der wassertiefe eines gewaessers
CA2162029C (fr) * 1993-05-03 2003-04-08 Bruce L. Bruso Methode et appareil pour la regeneration du sol in situ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1312032A (en) * 1970-01-19 1973-04-04 Koninkl Mij Tot Het Uitvoeren Hopper suction dredges
EP0075358A1 (fr) * 1981-09-17 1983-03-30 Ihc Holland N.V. Procédé pour aspirer de la terre ou de la vase par une drague suceuse à trémie et une drague suceuse pour la mise en oeuvre de ce procédé
JPS6055133A (ja) * 1983-09-02 1985-03-30 Kokusai Denshin Denwa Co Ltd <Kdd> 水底溝掘削機
EP0142881A1 (fr) * 1983-10-28 1985-05-29 Ihc Holland N.V. Dispositif pour raccorder une tête de draguage à une conduite aspirante
DE3817213C1 (en) * 1988-05-20 1989-01-12 Peter 2244 Suederdeich De Pautz Hydraulic harrow
EP0668406A1 (fr) * 1994-02-21 1995-08-23 Krupp Fördertechnik GmbH Procédé et dispositif pour l'aspiration du sol sous-marin

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 191 (M - 402) 7 August 1985 (1985-08-07) *

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19960361A1 (de) * 1999-12-14 2001-06-21 Krupp Foerdertechnik Gmbh Schleppkopf für Saugbagger
NL1020521C2 (nl) * 2002-05-02 2003-11-04 Bos & Kalis Baggermaatsch Sleepzuiger en sleepkop daarvoor.
BE1015911A3 (nl) * 2004-02-19 2005-11-08 Dredeco Pty Ltd Sleepkop en hopperzuiger.
BE1016085A5 (nl) * 2004-06-23 2006-02-07 Dredging Int Sleepkop voor een sleephopperzuiger en werkwijze voor het baggeren met behulp van deze sleepkop.
CN1766241B (zh) * 2004-10-26 2011-09-14 Ihc荷兰公司 实施水下挖泥作业的方法和挖泥设备
EP1653010A1 (fr) * 2004-10-26 2006-05-03 Ihc Holland N.V. Procédé sous-marin de dragage et dispositif pour celui-ci
AU2008328990B2 (en) * 2007-11-29 2015-03-26 Dredging International Drag head of a trailing suction hopper dredger and method for dredging using this drag head
WO2009068412A1 (fr) * 2007-11-29 2009-06-04 Dredging International Bec d'élinde d'une drague aspiratrice traînante et procédé pour le dragage à l'aide de ce bec d'élinde
JP2011504975A (ja) * 2007-11-29 2011-02-17 ドレッジング・インターナショナル・ナムローゼ・フエンノートシャップ トレーリングサクションホッパー浚渫船のドラッグヘッド、および当該ドラッグヘッドを用いて浚渫する方法
BE1017861A3 (nl) * 2007-11-29 2009-09-01 Dredging Int Sleepkop van een sleephopperzuiger en werkwijze voor het baggeren met behulp van deze sleepkop.
US8286375B2 (en) 2007-11-29 2012-10-16 Dredging International N.V. Drag head of a trailing suction hopper dredger and method for dredging using this drag head
BE1018378A3 (nl) * 2008-12-12 2010-09-07 Dredging Int Sleepkop voor een sleephopperzuiger en werkwijze voor het baggeren met behulp van deze sleepkop.
JP2012511644A (ja) * 2008-12-12 2012-05-24 ドレッジング・インターナショナル・ナムローゼ・フエンノートシャップ トレーリング吸引ホッパー浚渫船用のドラッグヘッド、および当該ドラッグヘッドを用いて浚渫する方法
WO2010066757A1 (fr) * 2008-12-12 2010-06-17 Dredging International N.V. Tête de dragage pour drague à trémie aspiratrice arrière et procédé de dragage utilisant cette tête de dragage
US9476181B2 (en) 2008-12-12 2016-10-25 Dredging International N.V. Drag head for a trailing suction hopper dredger and method for dredging using this drag head
WO2010079193A1 (fr) 2009-01-10 2010-07-15 Dredging International N.V. Dispositif excavateur pour creuser le sol sous l'eau, et procédé pour creuser le sol
BE1019788A4 (nl) * 2011-02-02 2012-12-04 Baggerwerken Decloedt & Zn N V Zuigkop voor een baggerschip en werkwijze voor het baggeren met behulp van deze zuigkop.
AU2012213492B2 (en) * 2011-02-02 2017-03-16 Baggerwerken Decloedt En Zoon Suction head for a dredging vessel and method for dredging using said suction head
WO2012104314A1 (fr) * 2011-02-02 2012-08-09 Baggerwerken Decloedt En Zoon Tête d'aspiration pour un navire de dragage et procédé pour le dragage à l'aide de ladite tête d'aspiration
WO2013108131A1 (fr) 2012-01-16 2013-07-25 Baggerwerken Decloedt En Zoon Embout de dragage pour un engin de dragage et procédé associé
BE1020438A4 (nl) * 2012-05-21 2013-10-01 Baggerwerken Decloedt En Zoon Zuigkop voor een baggerschip en werkwijze voor het baggeren met behulp van deze zuigkop.
WO2013175366A1 (fr) 2012-05-21 2013-11-28 Baggerwerken Decloedt En Zoon Tête d'aspiration pour un navire de dragage et procédé pour le dragage utilisant cette tête d'aspiration
WO2013174932A1 (fr) 2012-05-25 2013-11-28 Baggerwerken Decloedt En Zoon Bec d'élinde d'une drague aspiratrice en marche et procédé pour le dragage à l'aide de ledit bec d'élinde
NL2011961C2 (en) * 2013-12-13 2015-06-16 Ihc Holland Ie Bv Modular visor for a drag head.
BE1022377B1 (nl) * 2015-02-18 2016-03-18 Baggerwerken Decloedt En Zoon N.V. Zuigkop van een baggerschip en werkwijze voor het baggeren met behulp van deze zuigkop
WO2016132299A1 (fr) 2015-02-18 2016-08-25 Baggerwerken Decloedt En Zoon N.V. Tête d'aspiration d'un navire de dragage et procédé de dragage utilisant ladite tête d'aspiration
CN104818739A (zh) * 2015-05-05 2015-08-05 明光市留香泵业有限公司 海底吸沙作业专用抽吸盾头
CN106193157A (zh) * 2016-08-31 2016-12-07 中交烟台环保疏浚有限公司 耙吸挖泥船用耙头
CN106193157B (zh) * 2016-08-31 2018-08-28 中交烟台环保疏浚有限公司 耙吸挖泥船用耙头
CN106836342A (zh) * 2017-01-24 2017-06-13 黄河水利委员会黄河水利科学研究院 一种破土射流冲吸式吸泥头
WO2018236213A2 (fr) 2017-06-22 2018-12-27 Baggermaatschappij Boskalis B.V. Drague à trémie à aspiration arrière dotée d'un système de recyclage pour effluent et procédé de dragage par aspiration
CN108265767A (zh) * 2018-04-04 2018-07-10 长江南京航道工程局 挖泥船破碎耙头装置
CN108331060A (zh) * 2018-04-04 2018-07-27 长江南京航道工程局 挖泥船水刀耙头装置
CN108396807A (zh) * 2018-04-04 2018-08-14 长江南京航道工程局 挖泥船水翼耙头装置
CN108824532A (zh) * 2018-07-05 2018-11-16 长江南京航道工程局 一种自动调节转动角的自航耙吸式挖泥船耙头
CN108824532B (zh) * 2018-07-05 2023-07-11 长江南京航道工程局 一种自动调节转动角的自航耙吸式挖泥船耙头
CN109629622A (zh) * 2019-01-10 2019-04-16 中交上海航道局有限公司 一种耙吸式挖泥船耙头
CN109629622B (zh) * 2019-01-10 2023-12-08 中交上海航道局有限公司 一种耙吸式挖泥船耙头
CN109914505A (zh) * 2019-04-12 2019-06-21 中交天航滨海环保浚航工程有限公司 带有可拆卸格栅的耙吸挖泥船耙头结构
CN113638457A (zh) * 2021-07-28 2021-11-12 唐丽铭 一种耙吸式挖泥船用耙头
CN113638457B (zh) * 2021-07-28 2022-09-16 江苏佳佩环保机械设备有限公司 一种耙吸式挖泥船用耙头

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BE1011285A3 (nl) 1999-07-06
DE69833248T2 (de) 2006-11-02
ES2319781T3 (es) 2009-05-12
DK0892116T3 (da) 2006-05-22
ES2256926T3 (es) 2006-07-16
PT1609916E (pt) 2009-03-05
PT892116E (pt) 2006-06-30
EP1609916A2 (fr) 2005-12-28
HK1090398A1 (en) 2006-12-22
CY1110897T1 (el) 2015-06-10
EP1609916B1 (fr) 2008-11-26
DE69833248D1 (de) 2006-04-06
ATE415524T1 (de) 2008-12-15
EP1609916A3 (fr) 2006-04-05
EP0892116B1 (fr) 2006-01-18
DE69840281D1 (de) 2009-01-08
DK1609916T3 (da) 2009-03-16

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