NO790487L - GROEFTEGRAVER. - Google Patents

GROEFTEGRAVER.

Info

Publication number
NO790487L
NO790487L NO790487A NO790487A NO790487L NO 790487 L NO790487 L NO 790487L NO 790487 A NO790487 A NO 790487A NO 790487 A NO790487 A NO 790487A NO 790487 L NO790487 L NO 790487L
Authority
NO
Norway
Prior art keywords
pipeline
drive
frame
trench
drive screw
Prior art date
Application number
NO790487A
Other languages
Norwegian (no)
Inventor
Colin Ewart Gibson
John Spencer Seamans
John Michael Reynolds
Anton Rudolf Frits Van D Steen
Original Assignee
Land & Marine Eng 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 Land & Marine Eng Ltd filed Critical Land & Marine Eng Ltd
Publication of NO790487L publication Critical patent/NO790487L/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/02Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10Dredgers 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
    • E02F5/104Dredgers 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
    • E02F5/108Dredgers 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D57/00Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track
    • B62D57/02Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members
    • B62D57/036Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members screw type, e.g. Archimedian screw
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/02Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/08Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/02Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10Dredgers 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
    • E02F5/104Dredgers 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
    • E02F5/105Dredgers 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
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/02Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10Dredgers 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
    • E02F5/104Dredgers 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
    • E02F5/109Dredgers 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
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/02Travelling-gear, e.g. associated with slewing gears
    • E02F9/026Travelling-gear, e.g. associated with slewing gears for moving on the underwater bottom

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Glass Compositions (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Description

Innretning for graving av grøfter.Device for digging ditches.

Oppfinnelsen vedrører en innretning for graving av grøfter i forbindelse med nedgraving av en rørledning eller en kabel. The invention relates to a device for digging ditches in connection with burying a pipeline or a cable.

Det er kjent grøftegravinnretninger som kan benyttes på land eller som kan modifiseres for bruk under vann. Ved bruk på land kan en slik innretning eksempelvis taues langs rørledningen eller kabelen ved hjelp av egnet kjøretøy eller annen anordning, eller innretningen kan ha drivanordninger som ved hjelp av hjul eller belter samvirker med terrenget eller selve rørledningen eller kabelen. Når slike innretninger benyttes under vann, eksempelvis for nedgraving av en rørledning på sjøbunnen, kan innretningen enten slepes langs rørledningen ved hjelp av en overflate-lekter eller det kan benyttes drivanordninger som ved hjelp av hjul, belter eller andre friksjonsgripeanordninger samvirker med rørledningen eller havbunnen. Trench digging devices are known which can be used on land or which can be modified for use under water. When used on land, such a device can, for example, be towed along the pipeline or cable using a suitable vehicle or other device, or the device can have drive devices that interact with the terrain or the pipeline or cable itself by means of wheels or belts. When such devices are used underwater, for example for burying a pipeline on the seabed, the device can either be towed along the pipeline using a surface barge or drive devices can be used which interact with the pipeline or the seabed by means of wheels, belts or other friction gripping devices.

Den type graveinnretning som har drivanordninger hvormed rørledningen selv påvirkes, har den ulempe at grepssamvirke med rørledningen kan gi store strekk- og trykkspenninger. Det fore-trekkes derfor at innretningen bare styres langs rørledningen. Der-som innretningen slepes så byr dette på ulemper, særlig under vann. Eksempelvis kan slepelekteren i sin kurs avvike fra rørled-ningens retning, og/eller vær og vind kan medføre at arbeidet må stanses. En foretrukken form for drift er derfor den hvor innretningen er selvdrevet derved at den har kontakt med grunnen. Denne type arbeider tilfredsstillende på land, hvor man har faste grunnforhold. Bærestyrken til grunnen og grunnens skjærstyrke, som gir den nødvendige motstand for drift av innretningen, blir imidlertid raskt dårligere når fuktighetsinnholdet i grunnen øker. For å bekjempe slike problemer under sneforhold eller mer sump-aktige forhold har man vanligvis forsøkt å øke innretningens mobilitet ved å bruke store hjul, ved å øke antall hjul eller, når det dreier seg om beltekjøretøy, øke beltets markkontakt-område. Man når imidlertid før eller senere et punkt hvor grunnen er så lite bæredyktig at den ikke lenger kan bære innretningen eller gi tilstrekkelig motstand, slik at innretningen kan bevege seg fremover. The type of digging device that has drive devices with which the pipeline itself is affected has the disadvantage that grip interaction with the pipeline can produce large tensile and compressive stresses. It is therefore preferred that the device is only controlled along the pipeline. Where the device is towed, this presents disadvantages, especially under water. For example, the tow barge's course may deviate from the direction of the pipeline, and/or weather and wind may cause the work to have to be stopped. A preferred form of operation is therefore that where the device is self-powered by having contact with the ground. This type works satisfactorily on land, where you have fixed ground conditions. However, the load-bearing strength of the ground and the shear strength of the ground, which provide the necessary resistance for operation of the device, quickly deteriorate when the moisture content in the ground increases. To combat such problems in snowy conditions or more swamp-like conditions, attempts have usually been made to increase the device's mobility by using large wheels, by increasing the number of wheels or, in the case of tracked vehicles, increasing the track's ground contact area. However, sooner or later a point is reached where the ground is so weak that it can no longer support the device or provide sufficient resistance, so that the device can move forward.

Det er en hensikt med foreliggende oppfinnelse å til-veiebringe en graveinnretning som er selvdrevet og som kan arbeide tilfredsstillende i forbindelse med alle grunnforhold. It is an aim of the present invention to provide an excavating device which is self-propelled and which can work satisfactorily in connection with all ground conditions.

Ifølge foreliggende oppfinnelse foreslås det derfor en grøftegraveinnretning for bruk ved nedgraving av rørledninger eller kabler, hvilken grøftegravinnretning innbefatter en grøfte-utgravende anordning, minst en skruedrivanordning som under-støtter utgravingsanordningen og en styreanordning, og som ved bruk gir den nødvendige fremdrift for innretningen langs en rør-ledning eller kabel. According to the present invention, a trench digging device is therefore proposed for use when burying pipelines or cables, which trench digging device includes a trench-excavating device, at least one screw drive device which supports the excavation device and a control device, and which, when used, provides the necessary propulsion for the device along a pipe-line or cable.

I en foretrukket utførelsesform av grøftegravinnretningen ifølge oppfinnelsen benyttes en ramme hvori utgravingsanordningen anordnes i form av roterende skovelhjul. Skovelhjulene er anordnet i V-form sett i innretningens bevegelsesretning. Anordningen for styring av innretningen langs rørledningen eller kabelen er i form av styrefuller som også er montert i rammen. På hver side av rammen er en skruedrivanordning som strekker seg i innretningens bevegelsesretning. Hver skruedrivanordning har fortrinnsvis sin egen motor og virker når den settes i rotasjonsbevegelse om sin lengdeakse. Innretningen kan således snus ved å variere de relative hastigheter for skruene. Ved å variere rotasjonsretningen til skruene kan innretningen også bringes til å bevege seg side-veis. Alternativt kan det bentyttes en enkelt motor for begge skruer, med en variabel transmisjon som vil gi den nødvendige styring. I tillegg til at den gir en driwirkning vil skruedriv-anordningen også gi en viss grad av oppdrift til innretningen. In a preferred embodiment of the trench digging device according to the invention, a frame is used in which the excavation device is arranged in the form of rotating shovel wheels. The paddle wheels are arranged in a V-shape seen in the direction of movement of the device. The device for controlling the device along the pipeline or cable is in the form of guide rods which are also mounted in the frame. On each side of the frame is a screw drive device which extends in the direction of movement of the device. Each screw drive device preferably has its own motor and works when it is set in rotational motion about its longitudinal axis. The device can thus be turned by varying the relative speeds of the screws. By varying the direction of rotation of the screws, the device can also be made to move sideways. Alternatively, a single motor can be used for both screws, with a variable transmission that will provide the necessary control. In addition to providing a driving effect, the screw drive device will also provide a certain degree of buoyancy to the device.

En alternativ utførelse av foreliggende oppfinnelse kan utgravingsanordningen være i form av skjæranordninger og/eller stråleanordninger, eksempelvis anordninger som tilveiebringer kraftige vannstråler. Den sistnevnte utførelse egner seg bare for bruk under vann. In an alternative embodiment of the present invention, the excavation device can be in the form of cutting devices and/or jet devices, for example devices that provide powerful water jets. The latter design is only suitable for use under water.

Oppfinnelsen skal beskrives nærmere under henvisning til tegningen hvor: Fig. 1 viser et grunnriss av en foretrukket utførelse av foreliggende oppfinnelse, beregnet for bruk under vann, The invention shall be described in more detail with reference to the drawing where: Fig. 1 shows a ground plan of a preferred embodiment of the present invention, intended for use under water,

fig. 2 viser et sideriss av innretningen i fig. 1, ogfig. 2 shows a side view of the device in fig. 1, and

fig. 3 viser et frontriss av en annen utførelsesform avfig. 3 shows a front view of another embodiment of

en graveinnretning ifølge oppfinnelsen.a digging device according to the invention.

Graveinnretningene i fig. 1 og 2 består i hovedsaken avThe digging devices in fig. 1 and 2 mainly consist of

en ramme 1 hvori det er montert to skovlehjul 2 og 3. Disse skovelhjul kan bringes til å rotere og vil da grave ut en grøft. Skovelhjulene danner således grøfteutgravingsanordningen. Sett i innretningens bevegelsesretning (pilen A) er skovelhjulenes rotasjonsakse skråttstilt i forhold til horisontalen og skovelhjulene danner sammen et V-formet arrangement for utgraving av en V-formet grøft. Innretningen har styrerullegrupper :4 og 5 for styring av innretningen langs en rørledning 6 og, da innretningen er beregnet for bruk under vann, er det også anordnet sugerør 7 a frame 1 in which two paddle wheels 2 and 3 are mounted. These paddle wheels can be made to rotate and will then excavate a trench. The shovel wheels thus form the trench excavation device. Seen in the direction of movement of the device (arrow A), the axis of rotation of the bucket wheels is inclined in relation to the horizontal and the bucket wheels together form a V-shaped arrangement for excavating a V-shaped trench. The device has guide roller groups: 4 and 5 for controlling the device along a pipeline 6 and, as the device is intended for use under water, suction pipes 7 are also provided

og 8 for fjerning av flytendegjort materiale ifra bunnen av grøften. På hver side av rammen 1 er det et avlangt sideelement 9 som strekker seg aksialt i retning av pilen A. Hvert sideelement 9 er tilknyttet en drivskrue 10. Drivskruene 10 gir den nødvendige fremdrift for innretningen langs havbunnen. Ved å variere drivskruenes relative hastigheter kan innretningen svinges. En ikke vist motor er anordnet for hver drivskrue og er anordnet for rotasjon av' drivskruen om dennes lengdeakse. Alternativt kan det benyttes en enkelt motor for drift av begge drivskruer, idet det da benyttes en variabel transmisjon som gir den ønskede Styring. For styring av innretningen langs en rørledning eller and 8 for removing liquefied material from the bottom of the trench. On each side of the frame 1 there is an elongated side element 9 which extends axially in the direction of arrow A. Each side element 9 is connected to a drive screw 10. The drive screws 10 provide the necessary propulsion for the device along the seabed. By varying the relative speeds of the drive screws, the device can be swung. A motor, not shown, is arranged for each drive screw and is arranged for rotation of the drive screw about its longitudinal axis. Alternatively, a single motor can be used to operate both drive screws, as a variable transmission is then used which provides the desired control. For controlling the device along a pipeline or

en kabel kan .styrerullegruppene 4 og 5 eller andre ruller anordnes slik at de er trykkfølsomme og ma,n kan sørge for en styring av drivskruenes relative hastigheter i avhengighet av de trykk som utøves på motliggende sider av rørledningen eller kabelen. a cable, the guide roller groups 4 and 5 or other rollers can be arranged so that they are pressure-sensitive and ma,n can ensure a control of the relative speeds of the drive screws depending on the pressures exerted on opposite sides of the pipeline or cable.

En ytterligere utførelsesform av oppfinnelsen er vist i fig, 3, hvor det er benyttet de samme henvisningstall for de komponenter som er felles med utførelsene i fig. 1 og 2. Hoved-forskjellen er at .utgravingsanordningen i utførelsen i fig. 3 er i form av strålerørarmer 11. Disse strålerørarmer vil rette varinstrømmer mot grunnen, hvorved bunnmaterialet brytes istykker. Bunnmaterialet kan så suges opp ved hjelp av pumpen 12 og legges ut på siden av grøften gjennom utløpet 13. A further embodiment of the invention is shown in fig. 3, where the same reference numbers are used for the components that are common to the embodiments in fig. 1 and 2. The main difference is that the excavation device in the embodiment in fig. 3 is in the form of jet pipe arms 11. These jet pipe arms will direct water currents towards the ground, whereby the bottom material is broken into pieces. The bottom material can then be sucked up using the pump 12 and laid out on the side of the trench through the outlet 13.

Foreliggende oppfinnelse tilveiebringer således en grøfte- graveinnretning som er selvdrevet og som kan arbeide tilfredsstillende for alle grunnforhold. The present invention thus provides a trench-digging device which is self-propelled and which can work satisfactorily for all ground conditions.

Claims (4)

1. Innretning for graving av grøfter for bruk ved nedgraving av rørledninger eller kabler, karakterisert ved minst en drivskrue (10) som understøtter en grøfteutgrav-ingsanordning (2,3) og en styreanordning (4,5) for styring av innretningen langs en rørledning, hvilken drivskrue (10) også gir den nødvendige fremdrift for innretningen langs rørledningen.1. Device for digging trenches for use when burying pipelines or cables, characterized by at least one drive screw (10) which supports a trench excavation device (2,3) and a control device (4,5) for controlling the device along a pipeline , which drive screw (10) also provides the necessary propulsion for the device along the pipeline. 2. Innretning ifølge krav 1, karakterisert ved at utgravingsanordningen (2,3) er montert i en ramme (1), idet rammen (1) bæres av to drivskruer (10), med en drivskrue anordnet på hver lengdeside av rammen (1).2. Device according to claim 1, characterized in that the excavation device (2,3) is mounted in a frame (1), the frame (1) being supported by two drive screws (10), with a drive screw arranged on each longitudinal side of the frame (1) . 3. Innretning ifølge krav 2, karakterisert ved at hver drivskrue (10) har sin egen motor (M).3. Device according to claim 2, characterized in that each drive screw (10) has its own motor (M). 4. Innretning ifølge et av de foregående krav, karakterisert ved at utgravingsanordningen innbefatter to roterende hjul (2,3) med skovler anordnet rundt omkretsene.4. Device according to one of the preceding claims, characterized in that the excavation device includes two rotating wheels (2,3) with vanes arranged around the circumferences.
NO790487A 1978-02-16 1979-02-14 GROEFTEGRAVER. NO790487L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB610278 1978-02-16

Publications (1)

Publication Number Publication Date
NO790487L true NO790487L (en) 1979-08-17

Family

ID=9808419

Family Applications (1)

Application Number Title Priority Date Filing Date
NO790487A NO790487L (en) 1978-02-16 1979-02-14 GROEFTEGRAVER.

Country Status (6)

Country Link
BE (1) BE874192A (en)
DE (1) DE2905540A1 (en)
FR (1) FR2417704A1 (en)
GB (1) GB2015619A (en)
NL (1) NL7901212A (en)
NO (1) NO790487L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7906840A (en) * 1979-09-13 1981-03-17 Panama Overseas Shipping Corp EXCAVATOR.
FR2473228A1 (en) * 1980-01-08 1981-07-10 Tim Tech Ind Minieres DEVICE FOR LAYING UNDERWATER CABLES
FR2475681B1 (en) * 1980-02-11 1985-06-28 Coflexip DEVICE FOR BURIKING FLEXIBLE TUBULAR CABLES OR PIPES IN THE SUBSEA
US6022173A (en) * 1994-01-13 2000-02-08 Saxon; Saint E. Underwater trenching system
CN103867509B (en) * 2014-03-26 2016-06-22 上海电气液压气动有限公司 A kind of Double-wheel milling hydraulic power system

Also Published As

Publication number Publication date
BE874192A (en) 1979-08-16
FR2417704B3 (en) 1981-11-27
GB2015619A (en) 1979-09-12
FR2417704A1 (en) 1979-09-14
NL7901212A (en) 1979-08-20
DE2905540A1 (en) 1979-08-23

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