NZ592074A - Drag head for a trailing suction hopper dredger and method for dredging using this drag head - Google Patents

Drag head for a trailing suction hopper dredger and method for dredging using this drag head

Info

Publication number
NZ592074A
NZ592074A NZ592074A NZ59207409A NZ592074A NZ 592074 A NZ592074 A NZ 592074A NZ 592074 A NZ592074 A NZ 592074A NZ 59207409 A NZ59207409 A NZ 59207409A NZ 592074 A NZ592074 A NZ 592074A
Authority
NZ
New Zealand
Prior art keywords
drag head
visor
hopper dredger
suction hopper
dredging
Prior art date
Application number
NZ592074A
Inventor
Bruno Tack
Original Assignee
Dredging Int
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 Int filed Critical Dredging Int
Publication of NZ592074A publication Critical patent/NZ592074A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—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
    • E02F3/9268—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
    • E02F3/9281—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements with axis of rotation in horizontal and transverse direction of the suction pipe
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Treatment Of Sludge (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Earth Drilling (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Revetment (AREA)
  • Catching Or Destruction (AREA)
  • Floor Finish (AREA)

Abstract

A drag head (1) of a trailing suction hopper dredger is disclosed. The drag head comprises a visor (2) which is dragged over the bottom and herein loosens soil, and a suction pipe (3) which is connected to the visor (2) and which discharges the loosened soil. The visor (2) comprises at least two individually movable pressure elements (21, 22, 23, 24) transversely of the dragging direction which comprise a number of substantially disc-shaped penetrating bodies (51, 52, 53, 54). The penetrating bodies transmit forces to the bottom via their peripheral edge under the influence of the weight of the pressure element in which they are received, whereby the bottom is broken. The drag head is stated to have an improved efficiency.
NZ592074A 2008-09-29 2009-09-24 Drag head for a trailing suction hopper dredger and method for dredging using this drag head NZ592074A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2008/0544A BE1018312A3 (en) 2008-09-29 2008-09-29 Towing head for a towing hopper and method for dredging using this towing head.
PCT/EP2009/062388 WO2010034775A1 (en) 2008-09-29 2009-09-24 Drag head for a trailing suction hopper dredger and method for dredging using this drag head

Publications (1)

Publication Number Publication Date
NZ592074A true NZ592074A (en) 2012-08-31

Family

ID=40474174

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ592074A NZ592074A (en) 2008-09-29 2009-09-24 Drag head for a trailing suction hopper dredger and method for dredging using this drag head

Country Status (17)

Country Link
US (1) US20110239493A1 (en)
EP (1) EP2342385B1 (en)
JP (1) JP5346378B2 (en)
KR (1) KR101646632B1 (en)
AR (1) AR073698A1 (en)
AU (1) AU2009295885B2 (en)
BE (1) BE1018312A3 (en)
DK (1) DK2342385T3 (en)
ES (1) ES2391881T3 (en)
HK (1) HK1155496A1 (en)
MY (1) MY157476A (en)
NZ (1) NZ592074A (en)
PA (1) PA8844001A1 (en)
PT (1) PT2342385E (en)
TW (1) TWI541409B (en)
WO (1) WO2010034775A1 (en)
ZA (1) ZA201102455B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1019788A4 (en) * 2011-02-02 2012-12-04 Baggerwerken Decloedt & Zn N V SUCTION HEAD FOR A DREDGING SHIP AND METHOD FOR DRAGGING USING THIS SUCTION HEAD.
ES2694415T3 (en) * 2012-07-27 2018-12-20 Nautilus Minerals Pacific Pty Ltd Self-cleaning collection apparatus and procedure
US9303384B2 (en) * 2013-04-17 2016-04-05 Colorado School Of Mines Cavitating water jet hard rock dredge mining system
NL2011961C2 (en) * 2013-12-13 2015-06-16 Ihc Holland Ie Bv Modular visor for a drag head.
KR101499151B1 (en) * 2014-07-04 2015-03-06 (주)대우건설 System and method for flattening dredged sea-bed using plough
CN106836342A (en) * 2017-01-24 2017-06-13 黄河水利委员会黄河水利科学研究院 One kind break ground jet suction formula suction head
CN107630485B (en) * 2017-11-10 2023-04-21 上海振华重工(集团)股份有限公司 Open sea deep water is spread rubble foundation bed surface desilting system and desilting ship earlier
NL2020312B1 (en) * 2018-01-24 2018-11-09 Carpdredging Ip B V EXCAVATOR
EP3902393A4 (en) * 2018-12-26 2022-11-02 Cashman Dredging & Marine Contracting Co., Llc Dragging apparatus with ripper shank
CN111395434B (en) * 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 Trailing suction dredger
CN113306673A (en) * 2021-05-20 2021-08-27 湖南湘船重工有限公司 Ship drag mud measuring and early warning method and system

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US724501A (en) * 1903-01-02 1903-04-07 Jesse W Reno Hydraulic dredge.
US1068934A (en) * 1912-08-30 1913-07-29 John Warren Sackett Oscillatory-grating drag.
US1840606A (en) * 1929-02-27 1932-01-12 Scheffauer Frederick Carl Self-adjusting draghead
US1939389A (en) * 1932-12-31 1933-12-12 Mark M Condron Drag-head for dredging machines
US3305950A (en) * 1964-04-14 1967-02-28 Newport News Shipbuilding Underwater mining
NL175211C (en) * 1973-10-15 1984-10-01 Bos Kalis Westminster DEVICE AND METHOD FOR VACING A GROUND SUSPENSION WITH A TRANSPORT MEDIUM.
NL161222C (en) * 1975-08-25 1980-01-15 Ballast Nedam Groep Nv VACUUM CLEANER.
NL165249C (en) * 1975-12-19 1981-03-16 Ballast Nedam Groep Nv METHOD AND APPARATUS FOR BREAKING HARD SOIL CONTAINED UNDERWATER
US4141159A (en) * 1977-03-18 1979-02-27 Summa Corporation Method and apparatus for deep sea mining
NL166514C (en) * 1977-12-27 1981-08-17 Volker Groep Nv Towing head for a dredger.
NL169764C (en) * 1978-07-18 1982-08-16 Ihc Holland Nv TOWING HEAD WITH SPRING-SUPPORTED CUTTERS FOR A SUCTION DREDGER.
NL8005126A (en) * 1980-09-11 1980-12-31 Ballast Nedam Groep Nv Underwater rock loosening system - thrusts tools in from above to disturb structure in uppermost layer of bed
NL193220C (en) * 1987-10-07 1999-03-03 Bos Kalis Bv Suction dredging method and apparatus, in particular for suction of sludge.
RU1796002C (en) * 1990-01-18 1993-02-15 Ростовское центральное проектно-конструкторское бюро "Стапель" Drag soil intake device of suction tube dredge
JP3197718B2 (en) * 1993-11-18 2001-08-13 三井造船株式会社 Oat collection equipment
DE4405451A1 (en) * 1994-02-21 1995-08-31 Krupp Foerdertechnik Gmbh Method and device for suctioning off the bottom of water
BE1009262A3 (en) * 1995-03-30 1997-01-07 Dredging Int Dredging FOR BY SLEEP OR pushing movement DREDGING SLUDGE.
GB0301660D0 (en) * 2003-01-24 2003-02-26 Redding John Dredging scouring & excavation
BE1016291A3 (en) * 2004-09-10 2006-07-04 Dredging Int Towing head for a towing hopper and method for dredging using this towing head.
BE1017861A3 (en) * 2007-11-29 2009-09-01 Dredging Int Towing head of a towing hopper and method for dredging using this towing head.

Also Published As

Publication number Publication date
ES2391881T3 (en) 2012-11-30
TWI541409B (en) 2016-07-11
PA8844001A1 (en) 2010-05-26
JP2012504196A (en) 2012-02-16
BE1018312A3 (en) 2010-08-03
WO2010034775A1 (en) 2010-04-01
AU2009295885B2 (en) 2016-02-11
JP5346378B2 (en) 2013-11-20
EP2342385B1 (en) 2012-08-22
AR073698A1 (en) 2010-11-24
EP2342385A1 (en) 2011-07-13
MY157476A (en) 2016-06-15
HK1155496A1 (en) 2012-05-18
TW201020375A (en) 2010-06-01
KR20110079703A (en) 2011-07-07
DK2342385T3 (en) 2012-10-22
KR101646632B1 (en) 2016-08-08
ZA201102455B (en) 2011-12-28
US20110239493A1 (en) 2011-10-06
AU2009295885A1 (en) 2010-04-01
PT2342385E (en) 2012-11-13

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