WO2003023152A3 - Apparatus and methods for trenching - Google Patents

Apparatus and methods for trenching Download PDF

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Publication number
WO2003023152A3
WO2003023152A3 PCT/US2002/028917 US0228917W WO03023152A3 WO 2003023152 A3 WO2003023152 A3 WO 2003023152A3 US 0228917 W US0228917 W US 0228917W WO 03023152 A3 WO03023152 A3 WO 03023152A3
Authority
WO
WIPO (PCT)
Prior art keywords
flushing
chain
water
sled
bar assembly
Prior art date
Application number
PCT/US2002/028917
Other languages
French (fr)
Other versions
WO2003023152A2 (en
Inventor
Franck K Bonar
Original Assignee
Rocksaw Technology Inc
Franck K Bonar
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 Rocksaw Technology Inc, Franck K Bonar filed Critical Rocksaw Technology Inc
Priority to AU2002324960A priority Critical patent/AU2002324960A1/en
Publication of WO2003023152A2 publication Critical patent/WO2003023152A2/en
Publication of WO2003023152A3 publication Critical patent/WO2003023152A3/en

Links

Classifications

    • 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
    • E02F5/102—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 operatively associated with mole-ploughs, coulters
    • 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
    • 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
    • E02F5/107—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 blowing-effect devices, e.g. jets

Abstract

A trenching apparatus (1) adapted for underwater trenching that includes a flushing (11) device and a mechanical loosening device (31). The flushing device of the underwater trencher is provided with two sets of nozzles (25f, 25b), one set being oriented in a direction toward a flushable cover layer for flushing the flushable material from the cover layer to allow the flushing device to move downwardly onto a base layer and the other set of nozzles being oriented in the direction the flushing device is moved once it rests on the base layer. One or more riser sections are provided for conveying water, air, or a combination of water and air to the flushing device from a pump located on the surface of the water and for positioning the flushing device in the water. The mechanical loosening device (31) for use with both an underwater trencher and on dry land is a chain-milling device (35) that is provided with adjustable chain tensioning. A sled (69) is provided that is pivotable to maintain close contact with the surface of the stratum/strata being trenched and a tool bar assembly is pivotable with respect to the sled for maintaining the optimum cutting angle of the chain tool comprising the chain-milling device. Depth of cut is adjusted by moving the chain tool up and down relative to the tool bar assembly and by pivoting the tool bar assembly relative to the sled.
PCT/US2002/028917 2001-09-11 2002-09-11 Apparatus and methods for trenching WO2003023152A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002324960A AU2002324960A1 (en) 2001-09-11 2002-09-11 Apparatus and methods for trenching

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31895701P 2001-09-11 2001-09-11
US60/318,957 2001-09-11

Publications (2)

Publication Number Publication Date
WO2003023152A2 WO2003023152A2 (en) 2003-03-20
WO2003023152A3 true WO2003023152A3 (en) 2004-03-11

Family

ID=23240274

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/028917 WO2003023152A2 (en) 2001-09-11 2002-09-11 Apparatus and methods for trenching

Country Status (2)

Country Link
AU (1) AU2002324960A1 (en)
WO (1) WO2003023152A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2462435B (en) * 2008-08-06 2012-08-08 Ihc Engineering Business Ltd Trench excavating apparatus
NL2003800C2 (en) * 2009-11-13 2011-05-16 Baggerwerken Decloedt & Zn N V Device for dredging soil material under water.
CN104314128A (en) * 2014-09-28 2015-01-28 中国海洋石油总公司 Suction mud-raising device for trencher
NL2019360B1 (en) 2017-07-27 2019-02-19 Ihc Engineering Business Ltd Trench cutting apparatus and method
CN109826264B (en) * 2019-03-28 2023-11-14 安徽中标环境科技有限公司 Water bottom channeling device suitable for salvaging underwater waste
CN113536459B (en) * 2021-07-15 2022-11-18 一汽奔腾轿车有限公司 Power assembly parameterization setting method in automobile digital design process
CN116632725B (en) * 2023-07-25 2023-09-29 宇杰照明工程(山东)有限公司 Cable laying device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222876A (en) * 1962-08-22 1965-12-14 Harmstorf Rudolf Joachim System and apparatus to place flexible pipes and cables under ground below water
US3688511A (en) * 1969-08-18 1972-09-05 Rudolf Harmstrof Method of and apparatus for flush-jet embedding structural elements and for sucking off ground material
GB1348487A (en) * 1970-05-19 1974-03-20 Nederlandse Offshore Co Method of and apparatus for burying sub-sea pipelines
US4114390A (en) * 1976-06-28 1978-09-19 Shell Oil Company Burying a conduit in the bottom of a body of water
DE3922349C1 (en) * 1989-07-07 1990-09-13 Rudolf 2000 Hamburg De Harmstorf

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222876A (en) * 1962-08-22 1965-12-14 Harmstorf Rudolf Joachim System and apparatus to place flexible pipes and cables under ground below water
US3688511A (en) * 1969-08-18 1972-09-05 Rudolf Harmstrof Method of and apparatus for flush-jet embedding structural elements and for sucking off ground material
GB1348487A (en) * 1970-05-19 1974-03-20 Nederlandse Offshore Co Method of and apparatus for burying sub-sea pipelines
US4114390A (en) * 1976-06-28 1978-09-19 Shell Oil Company Burying a conduit in the bottom of a body of water
DE3922349C1 (en) * 1989-07-07 1990-09-13 Rudolf 2000 Hamburg De Harmstorf

Also Published As

Publication number Publication date
AU2002324960A1 (en) 2003-03-24
WO2003023152A2 (en) 2003-03-20

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