GB1492151A - Apparatus and method for digging a trench below a submerged pipeline or cable - Google Patents

Apparatus and method for digging a trench below a submerged pipeline or cable

Info

Publication number
GB1492151A
GB1492151A GB5468/76A GB546876A GB1492151A GB 1492151 A GB1492151 A GB 1492151A GB 5468/76 A GB5468/76 A GB 5468/76A GB 546876 A GB546876 A GB 546876A GB 1492151 A GB1492151 A GB 1492151A
Authority
GB
United Kingdom
Prior art keywords
members
hood
carried
arcuate
sleeve
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.)
Expired
Application number
GB5468/76A
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.)
Saipem SpA
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 GB1492151A publication Critical patent/GB1492151A/en
Expired legal-status Critical Current

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.
GB5468/76A 1975-02-11 1976-02-11 Apparatus and method for digging a trench below a submerged pipeline or cable Expired GB1492151A (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 (1)

Publication Number Publication Date
GB1492151A true GB1492151A (en) 1977-11-16

Family

ID=11163575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5468/76A Expired GB1492151A (en) 1975-02-11 1976-02-11 Apparatus and method for digging a trench below a submerged pipeline 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005005736A2 (en) * 2003-07-04 2005-01-20 Saipem S.P.A. Trenching apparatus and method
WO2011061605A1 (en) * 2009-11-20 2011-05-26 Saipem S.P.A. Digging method and assembly for laying a pipeline in the bed of a body of water

Families Citing this family (1)

* 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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005005736A2 (en) * 2003-07-04 2005-01-20 Saipem S.P.A. Trenching apparatus and method
WO2005005736A3 (en) * 2003-07-04 2005-08-25 Saipem Spa Trenching apparatus and method
EA007692B1 (en) * 2003-07-04 2006-12-29 САЙПЕМ С.п.А. A mobile apparatus for trenching a pipeline or a connection laid under water and method therefor
WO2011061605A1 (en) * 2009-11-20 2011-05-26 Saipem S.P.A. Digging method and assembly for laying a pipeline in the bed of a body of water
EA022638B1 (en) * 2009-11-20 2016-02-29 САИПЕМ С.п.А. Digging method and assembly for laying a pipeline in the bed of a body of water
US10240320B2 (en) 2009-11-20 2019-03-26 Saipem S.P.A. Digging method and assembly for laying a pipeline in the bed of a body of water

Also Published As

Publication number Publication date
IE42271L (en) 1976-08-11
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
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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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee