ATE452249T1 - UNDERWATER SUCTION DRAGING METHOD AND APPARATUS THEREOF - Google Patents
UNDERWATER SUCTION DRAGING METHOD AND APPARATUS THEREOFInfo
- Publication number
- ATE452249T1 ATE452249T1 AT04077955T AT04077955T ATE452249T1 AT E452249 T1 ATE452249 T1 AT E452249T1 AT 04077955 T AT04077955 T AT 04077955T AT 04077955 T AT04077955 T AT 04077955T AT E452249 T1 ATE452249 T1 AT E452249T1
- Authority
- AT
- Austria
- Prior art keywords
- bottom material
- draging
- cutting
- parcel
- pores
- Prior art date
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
- E02F3/9262—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)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Treatment Of Sludge (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
In a dredging operation, a cutting member (8) exerts a cutting force on a parcel (34) of pack bottom material. Thereby, in increase of the mutual distance of the bottom material particles (33) is generated, leading to a pore pressure decrease in the water field pores between said particles. By directing a water jet (30) towards said parcel of bottom material, a water flow is introduced into said pores thereby at least partly eliminating the pressure decrease and enabling a cutting operation with a decreased cutting force.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04077955A EP1653010B1 (en) | 2004-10-26 | 2004-10-26 | Method for performing an underwater dredging operation, and dredging installation |
CN200410095142.7A CN1766241B (en) | 2004-10-26 | 2004-10-26 | Underwater dredging application method and dredging apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE452249T1 true ATE452249T1 (en) | 2010-01-15 |
Family
ID=37770994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT04077955T ATE452249T1 (en) | 2004-10-26 | 2004-10-26 | UNDERWATER SUCTION DRAGING METHOD AND APPARATUS THEREOF |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1653010B1 (en) |
CN (1) | CN1766241B (en) |
AT (1) | ATE452249T1 (en) |
DE (1) | DE602004024685D1 (en) |
ES (1) | ES2337897T3 (en) |
PT (1) | PT1653010E (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1018378A3 (en) * | 2008-12-12 | 2010-09-07 | Dredging Int | Towing head for a towing hopper and method for dredging using this towing head. |
BE1020372A5 (en) | 2012-01-16 | 2013-08-06 | Baggerwerken Decloedt En Zoon | SUCTION HEAD FOR A DREDGING SHIP AND METHOD FOR DRAGGING USING THE SUCTION HEAD. |
BE1020438A4 (en) | 2012-05-21 | 2013-10-01 | Baggerwerken Decloedt En Zoon | SUCTION HEAD FOR A DREDGING SHIP AND METHOD FOR DRAGGING USING THIS SUCTION HEAD. |
CN106193157B (en) * | 2016-08-31 | 2018-08-28 | 中交烟台环保疏浚有限公司 | Trailing suction hopper dredger drag head |
NL2018070B1 (en) * | 2016-12-23 | 2018-07-02 | Carpdredging Ip B V | Dredger |
ES2684359B1 (en) | 2017-03-31 | 2019-07-09 | Nodosa S L | SUBMERGED AUTONOMOUS DRAGING EQUIPMENT |
CN109208675B (en) * | 2018-09-11 | 2024-02-13 | 中交广州航道局有限公司 | Dredger and drag head structure thereof |
CN109629622B (en) * | 2019-01-10 | 2023-12-08 | 中交上海航道局有限公司 | Drag head of drag suction dredger |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL158875B (en) * | 1973-06-04 | 1978-12-15 | Stichting Speurwerk Baggertech | METHOD AND EQUIPMENT FOR Dredging. |
NL7709227A (en) * | 1977-08-19 | 1979-02-21 | Stichting Speurwerk Baggertech | Floating suction dredger unit - delivers auxiliary water supply to different points on cutter blade |
BE1011285A3 (en) * | 1997-07-17 | 1999-07-06 | Dredging Int | TOWING HEAD FOR A TOWING PISTON AND METHOD FOR DREDGING USING THIS TOWING HEAD. |
BE1011744A4 (en) * | 1998-02-13 | 1999-12-07 | Dredging Int | Method for through ground and rock layers using or-dredging excavators and by this method operating systems. |
NL1008503C2 (en) * | 1998-03-05 | 1999-09-07 | Dredging Int | Device for moving soil material under water and method for this. |
CN2474596Y (en) * | 2001-05-08 | 2002-01-30 | 宋建农 | Novel harrow teeth of harrow suction type dredge boat |
-
2004
- 2004-10-26 EP EP04077955A patent/EP1653010B1/en active Active
- 2004-10-26 DE DE602004024685T patent/DE602004024685D1/en active Active
- 2004-10-26 CN CN200410095142.7A patent/CN1766241B/en active Active
- 2004-10-26 AT AT04077955T patent/ATE452249T1/en not_active IP Right Cessation
- 2004-10-26 PT PT04077955T patent/PT1653010E/en unknown
- 2004-10-26 ES ES04077955T patent/ES2337897T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
PT1653010E (en) | 2010-03-22 |
ES2337897T3 (en) | 2010-04-30 |
EP1653010B1 (en) | 2009-12-16 |
DE602004024685D1 (en) | 2010-01-28 |
CN1766241A (en) | 2006-05-03 |
CN1766241B (en) | 2011-09-14 |
EP1653010A1 (en) | 2006-05-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |