CA2078688A1 - Method and apparatus for laying undersea pipes or cables featuring rotating or oscillating jets and block removal - Google Patents

Method and apparatus for laying undersea pipes or cables featuring rotating or oscillating jets and block removal

Info

Publication number
CA2078688A1
CA2078688A1 CA2078688A CA2078688A CA2078688A1 CA 2078688 A1 CA2078688 A1 CA 2078688A1 CA 2078688 A CA2078688 A CA 2078688A CA 2078688 A CA2078688 A CA 2078688A CA 2078688 A1 CA2078688 A1 CA 2078688A1
Authority
CA
Canada
Prior art keywords
cables
block removal
oscillating jets
undersea pipes
pipes
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
CA2078688A
Other languages
French (fr)
Other versions
CA2078688C (en
Inventor
Trevor John Smith
William Preston Croager
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.)
Cable and Wireless PLC
Original Assignee
Individual
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
Priority claimed from GB909006429A external-priority patent/GB9006429D0/en
Priority claimed from GB909017397A external-priority patent/GB9017397D0/en
Application filed by Individual filed Critical Individual
Publication of CA2078688A1 publication Critical patent/CA2078688A1/en
Application granted granted Critical
Publication of CA2078688C publication Critical patent/CA2078688C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E02F3/88—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
    • E02F3/9206—Digging devices using blowing effect only, like jets or propellers
    • 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
    • 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

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)
  • Ceramic Products (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Earth Drilling (AREA)
  • Ink Jet (AREA)
  • Electric Cable Installation (AREA)

Abstract

A method and apparatus for excavating cohesive material comprises directing a jet of fluid (12), for example water, at a cutting face (13) of the material and along spaced apart tracks to cut spaced apart slots and thereby to create a kerf between the two slots. The invention is particularly applicable to the excavating trenches for sub-sea cables and pipes to be laid in.
CA002078688A 1990-03-22 1991-03-14 Method and apparatus for laying undersea pipes or cables featuring rotating or oscillating jets and block removal Expired - Fee Related CA2078688C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB909006429A GB9006429D0 (en) 1990-03-22 1990-03-22 Improvements in fluid-based excavating
GB9006429.6 1990-03-22
GB9017397.2 1990-08-08
GB909017397A GB9017397D0 (en) 1990-08-08 1990-08-08 Improvements in fluid-based excavating

Publications (2)

Publication Number Publication Date
CA2078688A1 true CA2078688A1 (en) 1991-09-23
CA2078688C CA2078688C (en) 1996-07-23

Family

ID=26296827

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002078688A Expired - Fee Related CA2078688C (en) 1990-03-22 1991-03-14 Method and apparatus for laying undersea pipes or cables featuring rotating or oscillating jets and block removal

Country Status (7)

Country Link
EP (1) EP0521032B1 (en)
JP (1) JPH05505222A (en)
AT (1) ATE137833T1 (en)
CA (1) CA2078688C (en)
DE (1) DE69119411T2 (en)
ES (1) ES2089200T3 (en)
WO (1) WO1991014834A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1016635C2 (en) * 2000-08-28 2002-03-01 Hollandsche Betongroep Nv Sea=bed trenching device for laying cable or pipeline comprises a ship=towed carriage or sledge fitted with arrangement of pivotable pressure spray angled arms on each side of the pipe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1653027A (en) * 1927-04-11 1927-12-20 Frederic L Ward Hydraulic excavating apparatus
US1688109A (en) * 1927-05-10 1928-10-16 Berry Fred Forrest Metallic-value recoverer
US2956354A (en) * 1956-06-14 1960-10-18 Charles W Varner Dredging apparatus
FR1242432A (en) * 1958-11-03 1960-09-30 Acrow Eng Ltd Suction dredge
US3019535A (en) * 1960-07-25 1962-02-06 David R Talbott Apparatus for removing matter from the bottom of waterways
IT1138764B (en) * 1981-05-04 1986-09-17 Snam Progetti UNDERGROUND DEVICE FOR UNDERGROUND OR UNDERGROUND

Also Published As

Publication number Publication date
ES2089200T3 (en) 1996-10-01
CA2078688C (en) 1996-07-23
DE69119411T2 (en) 1996-11-21
DE69119411D1 (en) 1996-06-13
EP0521032A1 (en) 1993-01-07
WO1991014834A1 (en) 1991-10-03
JPH05505222A (en) 1993-08-05
ATE137833T1 (en) 1996-05-15
EP0521032B1 (en) 1996-05-08

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed