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WO1995020076A1 - Charue fossoyeuse pour pose de pipelines - Google Patents

Charue fossoyeuse pour pose de pipelines Download PDF

Info

Publication number
WO1995020076A1
WO1995020076A1 PCT/GB1995/000096 GB9500096W WO9520076A1 WO 1995020076 A1 WO1995020076 A1 WO 1995020076A1 GB 9500096 W GB9500096 W GB 9500096W WO 9520076 A1 WO9520076 A1 WO 9520076A1
Authority
WO
WIPO (PCT)
Prior art keywords
share
plough
mouldboard
trenching
trenching plough
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.)
Ceased
Application number
PCT/GB1995/000096
Other languages
English (en)
Inventor
Alan Richard Reece
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.)
Soil Machine Dynamics Ltd
Original Assignee
Soil Machine Dynamics Ltd
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 Soil Machine Dynamics Ltd filed Critical Soil Machine Dynamics Ltd
Priority to AU14226/95A priority Critical patent/AU1422695A/en
Publication of WO1995020076A1 publication Critical patent/WO1995020076A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E02F5/104—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
    • E02F5/106—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 ploughs, coulters, rippers

Definitions

  • the present invention is concerned with ploughs of the type which are used for making trenches in which pipelines may be installed. It is part- icularly, but not. exclusively, concerned with such ploughs for use in laying pipelines underwater.
  • ploughs of the type which are used for making trenches in which pipelines may be installed. It is part- icularly, but not. exclusively, concerned with such ploughs for use in laying pipelines underwater.
  • pipelines of large diameter When pipelines of large diameter are to be installed, it may be required to make a trench of significant depth, for example of the order of 3m.
  • the making of so deep a trench in a single pass of a trenching plough requires a plough of great size and weight, which in turn requires a large force to pull it through the ground. It has been suggested to use a smaller plough and to form the trench in two or more success ⁇ ive passes but to date that approach has proved impracticable .
  • the trenching plough comprises a share for cutting and lifting the soil, a ground-based share support means mounted forward of the share and adjustable relative to the share to vary the depth of cut of the share, and a mouldboard mounted rearward of the share to divert lifted soil laterally, the mouldboard also being adjustable in a generally upward direction relative to the share.
  • the trenching plough according to the present invention may comprise a single share or two or more shares and may be designed to operate asymmet ⁇ rically, depositing most of the spoil to one side only of the trench, or symmetrically.
  • An asymmetrical plough will usually be provided with a single mouldboard and a symmetrical plough will usually have two mouldboards.
  • the ground-based share support means are preferably in the form of skids. As the skids are raised relative to the plough share or shares, so the plough cuts into the ground to a greater depth.
  • the share support means are adjustable without raising the plough from its working location, more preferably without even halting the plough. Such adjustment may advant ⁇ ageously be effected hydraulically, for example by means of one or more hydraulic rams disposed between the share support means and the share or shares, or a beam or beams upon which the share or shares is/are mounted.
  • the or each mouldboard is so shaped and posi ⁇ tioned as to move to the side of the trench, at ground level, spoil excavated to the ground surface by the share or shares.
  • the mouldboard is adjustable, in a generally upward direction relative to the share, so that the mouldboard always operates at ground level. Again adjustment is preferably possible at the working location of the plough, more preferably without stopping the plough.
  • the adjustment is preferably made hydraulically. for example by means of one or more hydraulic rams.
  • the mouldboard(s ) may be attachable to the plough share(s) in two or more alternative attachment positions, adjustment of the mouldboard then being made by removal and reattachment of the mouldboard in different positions.
  • the mouldboard may be mounted to slide along plane inclined slides, or to move up and down about a suitably-positioned pivot, or upon a linkage connected directly or indirectly to the share.
  • the or each mouldboard is of adjustable width, that is, in a direction transverse to the line of movement of the plough.
  • This is advantageously achieved by providing one or more extensions to each mouldboard.
  • Such extensions may simply be attachable to the mouldboard and removable as required but it is preferred to mount the extensions pivotally on the mouldboard, so that they may readily be swung into and out of operating position, for example by means of hydraulic rams, about generally vertical pivots.
  • the plough may be designed to divide, for example by pivoting about a generally horizontal axis, to enable a pipe to be loaded into the plough, or to enable the plough to support a pipe above the shares while the plough is in operation.
  • Fig. 1 is an elevation from the side of a symmetrical plough
  • Fig. 2 is a plan view of the plough of Fig. 1 ;
  • Fig. 3 is an elevation from the front of the plough of
  • Fig. 4 is an elevation from the side of an asymmetrical second form of plough
  • Fig. 5 is a plan view of the plough of Fig. 4;
  • Fig. 6 illustrates a symmetrical further form of plough, in an open configuration to take up a pipe
  • Fig. 7 illustrates an asymmetrical further form of plough, in the process of carrying out a third trenching pass.
  • 1 to 3 comprises two shares 10, 11, set in tandem behind each other, the share 10 being somewhat smaller than, forward of and set higher than the share 11.
  • the shares are set at a fixed height relative to the body of the plough.
  • the plough body and the shares are supported upon skids 12, set forward of the share 10.
  • the skids are mounted upon arms 13, which are pivoted at 14 to the body of the plough.
  • the skids 12 may be raised or lowered relative to the plough body and in this way the depth at which the shares 10, 11 operate may be modified.
  • mouldboards 16, 17 are mounted upon the plough body.
  • the mouldboards 16 are relatively smaller and are mounted in a fixed position.
  • the mouldboards 17 are mounted about pivots and may be raised or lowered relative to the plough body by operation of hydraulic rams 18.
  • the broken lines A-A and B-B indicate the axes of pivoting of the mouldboards.
  • the plough of Figs. 1 to 3 can open up longitudinally to enable it to embrace and support a length of cable or pipeline 19 (shown in Fig. 1 only).
  • the plough is illustrated in a typical first-pass setting, as determined by the positions of the skids 12 and mouldboards 16, 17 relative to the plough body.
  • the trenching plough of Figs. 4 and 5 is asymmetrical and comprises a beam 42 to which is attached a single plough share 41. At the forward end of the beam are mounted two skids 43, the positions of which in a vertical direction relative to the share 41 are adjustable by rams
  • a mouldboard 45 is mounted upon the share
  • the mouldboard 45 When the plough is operated in its first pass configuration, the mouldboard 45, with its extensions 48 and 49, is at its maximum width and spoil raised from the trench by the share 41 is deposited by the mouldboard at the maximum distance from the trench.
  • the mouldboards and skids are both raised relative to the plough share 41, which cuts a deeper trench where the first trench was cut.
  • the skids 43 run along the original ground surface, between the trench and the spoil heaps from the first pass.
  • the mouldboard extension 49 is retracted to position 49a and spoil from the trench is deposited nearer to the trench than the first pass spoil.
  • the skids and mouldboards are raised further relative to the share 41, which therefore cuts an even deeper trench.
  • the mouldboard extension 48 is also retracted and spoil is deposited along a line inward of the two earlier spoil heaps.
  • the plough illustrated in Figs. 4 and 5 is a symmetrical plough comprising two beams 60, 60, two shares 61, 61 supported by the beams, two depth control skids 62, 62 and two mouldboards 63, 63, all of which rotate together about a pivot 64 under control of ram 65.
  • the plough is shown in an open configuration, in which configuration a pipe 67 can be loaded into the plough.
  • a pipe 67 can be loaded into the plough.
  • the operator may close the plough and take up the pipe 67.
  • the plough may now carry out an excavating operation while supporting the pipe upon rollers 68, the mouldboards 63 being set at the desired height above the shares 61.
  • the plough of Fig. 7 is an asymmetrical plough, in which a beam 70 carries a share 71 and is supported at its front end upon skids 72 and has a single mouldboard 73 mounted rearwardly of the share.
  • a beam 70 carries a share 71 and is supported at its front end upon skids 72 and has a single mouldboard 73 mounted rearwardly of the share.
  • two lateral extensions of the mouldboard 73 were fully extended and spoil was deposited in the form of a linear heap 74.
  • the outermost extension was retracted and a second spoil heap 75 was formed.
  • both mouldboard extensions are retracted, the share 71 is set at its deepest level and a third spoil heap 76 is deposited, generally parallel to the spoil heaps 74 and 75.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

Charrue fossoyeuse appropriée pour former une tranchée en deux ou plusieurs passages successifs, qui comprend un soc (10, 11; 41; 61; 71) servant à couper et à soulever le sol, un dispositif de support ( 12; 43; 62; 72) du soc posé sur le sol, monté à l'avant du soc et réglable de manière à modifier la profondeur de coupe du soc, et un versoir (17; 45; 63; 73) monté à l'arrière du soc pour dévier latéralement le sol excavé, le versoir étant également réglable en hauteur.
PCT/GB1995/000096 1994-01-25 1995-01-19 Charue fossoyeuse pour pose de pipelines Ceased WO1995020076A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU14226/95A AU1422695A (en) 1994-01-25 1995-01-19 Pipeline trenching plough

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9401351.3 1994-01-25
GB9401351A GB9401351D0 (en) 1994-01-25 1994-01-25 Trenching plough

Publications (1)

Publication Number Publication Date
WO1995020076A1 true WO1995020076A1 (fr) 1995-07-27

Family

ID=10749253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/000096 Ceased WO1995020076A1 (fr) 1994-01-25 1995-01-19 Charue fossoyeuse pour pose de pipelines

Country Status (3)

Country Link
AU (1) AU1422695A (fr)
GB (2) GB9401351D0 (fr)
WO (1) WO1995020076A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353305A (en) * 1999-07-22 2001-02-21 Engineering Business Ltd Plough with vibrating member positioned forward of the share
CN105201032A (zh) * 2015-11-11 2015-12-30 中国石油大学(华东) 双犁体悬跨海底管道挖沟及填埋设备
CN114987699A (zh) * 2022-06-23 2022-09-02 中交广州航道局有限公司 一种犁钩遥控船及其控制系统

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5988948A (en) * 1997-09-04 1999-11-23 Cable And Wireless Plc Underwater plough and method for varying ploughing depth
US6050009A (en) * 1997-11-04 2000-04-18 Coflexip, S.A. Steerable underwater plow
US6061932A (en) * 1998-04-29 2000-05-16 Coflexip Stena Offshore Steerable underwater plow with movable body member
GB9922247D0 (en) 1999-09-21 1999-11-17 Engineering Business Ltd Improvements to submarine ploughs
WO2008106710A1 (fr) * 2007-03-07 2008-09-12 Darren Leslie Murdoch Dispositif servant à creuser des tranchées
US9422690B2 (en) 2012-11-30 2016-08-23 Michael W. N. Wilson Method and apparatus for performing burial assessment surveys
US10323383B2 (en) * 2012-11-30 2019-06-18 Oceaneering International, Inc. Seabed plow capable of over-the-stern release and retrieval in any of boulder clearing, trenching and backfill configurations
EP2840187A1 (fr) * 2013-08-22 2015-02-25 Soil Machine Dynamics Limited Procédé et appareil de formation d'une tranchée dans un fond marin
US9657455B2 (en) * 2015-06-24 2017-05-23 Michael W. N. Wilson Over-the-stern deep digging trenching plow with instrumentation for assessing the protective capabilities of a seabed trench
CN117552490A (zh) * 2023-11-10 2024-02-13 深海智人(广州)技术有限公司 一种水下冲射式挖沟犁刀及应用其的挖沟铺缆机器人

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464499A (en) * 1965-08-23 1969-09-02 Samuel B Mckell Adjustable blade device
EP0144099A1 (fr) * 1983-11-30 1985-06-12 Soil Machine Dynamics Limited Charrue pour la pose de conduites
EP0221581A2 (fr) * 1985-10-03 1987-05-13 Soil Machine Dynamics Limited Charrue pour enterrer des tuyaux ou câbles
EP0296783A1 (fr) * 1987-06-20 1988-12-28 LAND & MARINE ENGINEERING LIMITED Dispositif pour creuser dans le sol marin

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141667A (en) * 1977-10-11 1979-02-27 R. J. Brown And Associates Ag Underwater pipeline laying method and apparatus
GB9007959D0 (en) * 1990-04-07 1990-06-06 Northern Ocean Services Ltd A method of and apparatus for trenching

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464499A (en) * 1965-08-23 1969-09-02 Samuel B Mckell Adjustable blade device
EP0144099A1 (fr) * 1983-11-30 1985-06-12 Soil Machine Dynamics Limited Charrue pour la pose de conduites
EP0221581A2 (fr) * 1985-10-03 1987-05-13 Soil Machine Dynamics Limited Charrue pour enterrer des tuyaux ou câbles
EP0296783A1 (fr) * 1987-06-20 1988-12-28 LAND & MARINE ENGINEERING LIMITED Dispositif pour creuser dans le sol marin

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353305A (en) * 1999-07-22 2001-02-21 Engineering Business Ltd Plough with vibrating member positioned forward of the share
GB2353305B (en) * 1999-07-22 2003-09-17 Engineering Business Ltd Improvements to ploughs
CN105201032A (zh) * 2015-11-11 2015-12-30 中国石油大学(华东) 双犁体悬跨海底管道挖沟及填埋设备
CN114987699A (zh) * 2022-06-23 2022-09-02 中交广州航道局有限公司 一种犁钩遥控船及其控制系统

Also Published As

Publication number Publication date
GB2285821A (en) 1995-07-26
GB9500865D0 (en) 1995-03-08
AU1422695A (en) 1995-08-08
GB9401351D0 (en) 1994-03-23

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