IE42271L - Apparatus for digging a trench - Google Patents

Apparatus for digging a trench

Info

Publication number
IE42271L
IE42271L IE760247A IE24776A IE42271L IE 42271 L IE42271 L IE 42271L IE 760247 A IE760247 A IE 760247A IE 24776 A IE24776 A IE 24776A IE 42271 L IE42271 L IE 42271L
Authority
IE
Ireland
Prior art keywords
members
hood
carried
arcuate
sleeve
Prior art date
Application number
IE760247A
Other versions
IE42271B1 (en
Original Assignee
Saipem Spa
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 Saipem Spa filed Critical Saipem Spa
Publication of IE42271L publication Critical patent/IE42271L/en
Publication of IE42271B1 publication Critical patent/IE42271B1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/02—Travelling-gear, e.g. associated with slewing gears
    • E02F9/04—Walking gears moving the dredger forward step-by-step
    • E02F9/045—Walking gears moving the dredger forward step-by-step for moving on the underwater bottom
    • 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
    • E02F5/105—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 self-propulsed units moving on the underwater bottom
    • 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
    • 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
    • E02F5/109—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 rotating digging elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

1492151 Sub sea trench excavators SAIPEM SpA 11 Feb 1976 [11 Feb 1975] 05468/76 Heading E1F Submersible apparatus 1 that is advanceable stepwise in either direction along a submerbed pipeline 49 or like elongate member to dig a trench beneath the member comprises at least two longitudinally extending support members 31; two hoods 5 carried at opposite end regions of the support members and each having an open downward facing region; two sleeves carried one on each hood and each being formable from two arcuate elements, e.g. sectors 2, 3, capable of undegoing relative movement between a first position in which the sleeve is completed and second position in which the arcuate elements do not obstruct entry of the elongate member into the downward facing region of the hood on the apparatus descending onto the elongate member; two annular members each carried by a sleeve and each being formable from two arcuate cutter-carrying members e.g. sectors 4, 7, corresponding to and capable of being carried by the two arcuate elements respectively; first means 8, 29 for causing relative movement of the arcuate elements and arcuate members to complete full sleeves; second means 30 for causing rotation of the completed annular members with respect to the completed sleeves; and at least two clamping devices carried by the supporting members and capable of causing the apparatus to clamp on to the elongate element 49 or to move along the element. As shown one of the sleeve-forming arcuate elements 2, 3 is rotatably mounted on the hood 5 and can be rotated through 180‹ around the hood whilst the other element 3 is longitudinally slidable of the hood and can be so moved by ram 8 to enter the jaws of the element 2, when the element is covering the downwardly directed opening of the hood 5, to complete the sleeve and circumferentially align the arcuate, cuttercarrying members 4, 7, which can then be rotated around the sleeve by a motor 30 and a pinion 64 and gear ring associated with the members 4, 7. In a second embodiment the members 4, 7, comprise two half sleeves pivoted together in a region atop the hood 5. Material cut out of the trench by cutters e.g. roller cutters 27, 28 carried by the members 4, 7 is removed from the trench by suction pipes 52. [GB1492151A]
IE247/76A 1975-02-11 1976-02-09 Apparatus and method for digging a trench below a submerged pileline or cable IE42271B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT20072/75A IT1031567B (en) 1975-02-11 1975-02-11 EQUIPMENT FOR EXCAVING A TRENCH UNDER A SUBMERSIBLE PIPE AND RELEVANT METHOD OF USE

Publications (2)

Publication Number Publication Date
IE42271L true IE42271L (en) 1976-08-11
IE42271B1 IE42271B1 (en) 1980-07-02

Family

ID=11163575

Family Applications (1)

Application Number Title Priority Date Filing Date
IE247/76A IE42271B1 (en) 1975-02-11 1976-02-09 Apparatus and method for digging a trench below a submerged pileline or cable

Country Status (21)

Country Link
JP (1) JPS5856771B2 (en)
AR (1) AR208354A1 (en)
AU (1) AU497719B2 (en)
BE (1) BE838377A (en)
BR (1) BR7600883A (en)
CA (1) CA1028513A (en)
DE (1) DE2605373C3 (en)
DK (1) DK149138C (en)
EG (1) EG12341A (en)
ES (1) ES445233A1 (en)
FI (1) FI62886C (en)
FR (1) FR2300854A1 (en)
GB (1) GB1492151A (en)
IE (1) IE42271B1 (en)
IT (1) IT1031567B (en)
NL (1) NL163287C (en)
NO (1) NO140863C (en)
NZ (1) NZ179923A (en)
OA (1) OA05245A (en)
PT (1) PT64788B (en)
SE (1) SE415586B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998015165A2 (en) * 1996-09-25 1998-04-16 Obschestvo S Ogranichennoi Otvetstvennostju Nauchno-Issledovatelsky I Tekhnichesky Tsentr 'rotor' Machine for digging under pipes and caterpillar traction device
GB0413601D0 (en) * 2003-07-04 2004-07-21 Saipem Spa Trenching apparatus and method
ITMI20092044A1 (en) * 2009-11-20 2011-05-21 Saipem Spa METHOD AND EXCAVATION GROUP TO HAVE A PIPE IN A BED OF A WATER BODY

Also Published As

Publication number Publication date
NL163287C (en) 1980-08-15
IT1031567B (en) 1979-05-10
NL7601410A (en) 1976-08-13
DE2605373B2 (en) 1978-03-23
ES445233A1 (en) 1977-06-01
AU497719B2 (en) 1979-01-04
PT64788B (en) 1977-07-07
FR2300854A1 (en) 1976-09-10
FI62886C (en) 1983-03-10
FI62886B (en) 1982-11-30
NZ179923A (en) 1978-04-28
SE415586B (en) 1980-10-13
DK149138C (en) 1986-07-14
OA05245A (en) 1981-02-28
JPS51105101A (en) 1976-09-17
AR208354A1 (en) 1976-12-20
GB1492151A (en) 1977-11-16
DK52276A (en) 1976-08-12
NO140863C (en) 1979-11-28
JPS5856771B2 (en) 1983-12-16
AU1081076A (en) 1977-08-11
DK149138B (en) 1986-02-10
FI760319A (en) 1976-08-12
DE2605373A1 (en) 1976-08-26
IE42271B1 (en) 1980-07-02
PT64788A (en) 1976-03-01
BR7600883A (en) 1976-08-31
DE2605373C3 (en) 1978-11-16
FR2300854B1 (en) 1979-04-06
NL163287B (en) 1980-03-17
EG12341A (en) 1978-12-31
SE7601333L (en) 1976-08-12
NO760427L (en) 1976-09-27
CA1028513A (en) 1978-03-28
NO140863B (en) 1979-08-20
BE838377A (en) 1976-08-09

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