NO782743L - SUBSIDIARY LINE, SUCH AS A CABLE OR RUBBER, AND A WEIGHT LOADING DEVICE FOR USE OF SUCH PIPES - Google Patents

SUBSIDIARY LINE, SUCH AS A CABLE OR RUBBER, AND A WEIGHT LOADING DEVICE FOR USE OF SUCH PIPES

Info

Publication number
NO782743L
NO782743L NO782743A NO782743A NO782743L NO 782743 L NO782743 L NO 782743L NO 782743 A NO782743 A NO 782743A NO 782743 A NO782743 A NO 782743A NO 782743 L NO782743 L NO 782743L
Authority
NO
Norway
Prior art keywords
line
cable
concrete
concrete elements
spacers
Prior art date
Application number
NO782743A
Other languages
Norwegian (no)
Inventor
Henning Vestbo
Original Assignee
Nordiske Kabel Traad
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 Nordiske Kabel Traad filed Critical Nordiske Kabel Traad
Publication of NO782743L publication Critical patent/NO782743L/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/12Laying or reclaiming pipes on or under water
    • F16L1/20Accessories therefor, e.g. floats, weights
    • F16L1/24Floats; Weights

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Scissors And Nippers (AREA)
  • Clamps And Clips (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Cable Accessories (AREA)

Description

Oppfinnelsen angår en undervannsledning,såsom en kabel eller et rør, hvor det for stabilisering av ledningens posisjon, utvendig er anbrakt vektbelastningsorganer i form av to eller flere betongelementer som tilsammen omslutter ledningen. Slike undervanns ledninger anvendes f.eks. som kloakkrør hvor man skal føre avfall, ut til passende havdyp eller til transport under vann over korte avstander av væsker av den ene eller annen art. Kabler som anbringes under vann må i mange tilfeller også belastes for å sikre at de ligger stabilt på havbunnen. The invention relates to an underwater line, such as a cable or a pipe, where, to stabilize the line's position, weight-loading means in the form of two or more concrete elements which together enclose the line are placed on the outside. Such underwater lines are used e.g. as sewer pipes where waste is to be conveyed, out to suitable sea depths or for underwater transport over short distances of liquids of one kind or another. Cables that are placed under water must in many cases also be loaded to ensure that they lie stably on the seabed.

Ved anbringelse av vektbelastningsanordninger på slike ledninger har man hittil anvendt betongklosser som spennes rundt selve ledningen, men det har vist seg å være forbundet forskjellige ulemper ved denne fremgangsmåte. For det første vil en betongkloss lett kunne beskadige overflaten av røret eller kabelen hvilket er av stor betydning, fordi man derved nedsetter ledningens styrkeegenskaper eller øde-legger armering eller annet ytre belegg. For det annet har det vist seg at samspenning av slike betongklosser ikke i det lange løp er helt effektivt, fordi det ikke kan unngås at ledningen beveger seg lett under innvirkning av strøm, slik at det skjer en beskadigelse av de betongoverflater som støter mot hverandre eller ligger an mot sammenspenningsor-ganene slik at sammenspenningen etter hvert løsner. Dermed følger at betonglegemene ikke sitter fast på ledningen og kan forskyve seg, slik at det kan skje ytterligere beskadiga else av ledningens overflate og vektfordelingen endres slik at undervannledningen ikke lenger ligger fast og sikkert på det ønskede sted. Det har vært foreslått å anbringe elastiske pakninger mellom ledningen og betongelementene, men det er i dette tilfellet likevel ikke oppnådd den sikre fast-r-holdelse med sikker avstand mellom ledningen og betongele--mentene. When placing weight-loading devices on such cables, concrete blocks have been used up to now that are clamped around the cable itself, but various disadvantages have been found to be associated with this method. Firstly, a concrete block can easily damage the surface of the pipe or cable, which is of great importance, because this reduces the strength of the cable or destroys reinforcement or other outer coating. Secondly, it has been shown that the tensioning of such concrete blocks is not completely effective in the long run, because it cannot be avoided that the wire moves easily under the influence of current, so that damage occurs to the concrete surfaces that collide with each other or rests against the tensioning means so that the tension gradually loosens. This means that the concrete bodies are not fixed to the cable and can shift, so that further damage to the cable's surface can occur and the weight distribution changes so that the underwater cable is no longer fixed and secure in the desired location. It has been proposed to place elastic gaskets between the cable and the concrete elements, but in this case the secure hold with a safe distance between the cable and the concrete elements has not been achieved.

Hensikten med oppfinnelsen er 'å tilveiebringe en undervannsledning av den innledningsvis nevnte art hvor de nevnte ulemper unngåes. The purpose of the invention is to provide an underwater line of the type mentioned at the outset where the aforementioned disadvantages are avoided.

Dette oppnås ifølge oppfinnelsen ved at betongelementene er holdt på plass mellom tor eller flerdelte, rundt ledningen fastspente spennringer som har inn over betongelementene gripende holdeorganer ogoer innrettet til å tjene som avstandsstykker mellom ledningen og betongelementene. Da fastspenningen på denne måte er tilveiebragt bare ved befest^igelse avvspennringen rundt selve ledningen, hvilken fast-spenning kan justeres fullstendig sikker, og som ikke endrer seg, oppnår man at det ikke blir mulig med forskyvning eller andre endringer i vektbelastningen, selv etter lang tids for-løp og samtidig er selve befestigelsen av vektbelastningsan-ordningene meget enkel og hurtig å utføre. According to the invention, this is achieved by the concrete elements being held in place between cables or multi-part tension rings clamped around the cable, which have holding devices that grip over the concrete elements and are arranged to serve as spacers between the cable and the concrete elements. As the fixed tension is provided in this way only by attaching the release ring around the wire itself, which fixed tension can be adjusted completely safely and which does not change, it is achieved that no displacement or other changes in the weight load become possible, even after a long passage of time and at the same time the attachment of the weight load devices itself is very simple and quick to carry out.

Den omstendighet at det finnes de angitte avstandsstykker medfører dessuten at man kan tillate seg å legge rør-ledningen ut med en viss krumning uten at rørets overflate be-røres av betongelementene, idet tykkelsen av avstands stykkene, er bestemmende for hvilken krumning man kan tillate seg, The fact that there are the specified spacers also means that you can allow yourself to lay out the pipeline with a certain curvature without the pipe's surface being touched by the concrete elements, as the thickness of the spacers determines what curvature you can allow ,

Oppfinnelsen går videre ut på en vektbelastningsanordning for anvendelse i forbindelse med en undervannsledning av den ovenfor angitte art,karakterisert vedat den består av to spennringer som hver er dannet av to eller flere spennringseksjoner med som avstandsstykker mellom ledningen og to*- eller flerdelte delsylindriske betonglegemer tjenende flensformede deler, hvilke spennringseksjoner har radialt utragende, for innbyrdes sammenspenning av seksjonene tjenende fliker, og hvor hver seksjon er forsynt med minst en som holdeorgan for betongs legemene tjenende hake. The invention further relates to a weight loading device for use in connection with an underwater pipeline of the above type, characterized in that it consists of two clamping rings each of which is formed by two or more clamping ring sections with as spacers between the cable and two*- or multi-part semi-cylindrical concrete bodies serving flange-shaped parts, which clamping ring sections have radially protruding, for mutually clamping the sections serving tabs, and where each section is provided with at least one hook serving as a holding device for the concrete bodies.

Slike vektbelastningsanordninger kan hurtig og lett monteres på en kabel eller et rør, idet man først fastspenner en spennring rundt ledningen og derpå anbringer betongelementene på plass i inngrep med spennringseksjonenes haker,hvor^etter den andre spennring anbringes rundt ledningen og skyves på plass, slik at hakene på spennringseksjonene på den andre spennring griper inn over betongelementene. I denne stilling fastspennes deretter den andre spennring og hele vektbelast^ningsanordningen er dermed anbrakt sikkert på plass med de flensformede deler av spennringseksjonene beliggende som avstandsstykker mellom ledningen og betongelementene. Such weight load devices can be quickly and easily mounted on a cable or a pipe, by first clamping a tension ring around the wire and then placing the concrete elements in place in engagement with the hooks of the tension ring sections, after which the second tension ring is placed around the wire and pushed into place, so that the hooks on the clamping ring sections on the other clamping ring engage over the concrete elements. In this position, the second clamping ring is then clamped and the entire weight loading device is thus placed securely in place with the flange-shaped parts of the clamping ring sections located as spacers between the wire and the concrete elements.

Oppfinnelsen skal nedenfor forklares nærmere under henvisning til tegningen. Fig".. 1'..viser et tverrsnitt gjennom en undervannsledning ifølge oppfinnelsen. Fig, 2 viser et snitt langs linjen II^II på fig. 1. Fig. 3 viser i mindre målestokk et lengre stykke av en slik undervannsledning forsynt med vektbelastningslegemer. The invention will be explained in more detail below with reference to the drawing. Fig".. 1'..shows a cross-section through an underwater line according to the invention. Fig, 2 shows a section along the line II^II in Fig. 1. Fig. 3 shows on a smaller scale a longer piece of such an underwater line provided with weight load bodies .

På fig. 1 og 2 er undervannsledningen 1 som her f.eks. er et rør av plastmateriale, f.eks. polyvinylklorid eller polyetylen, forsynt med i innbyrdes avstand fastspent to av halvsirkelformede deler bestående spennringer 2 og 3 hvor hver ringhalvdel har utragende flik 4, og som er spent mot hverandre ved hjelp av bolter 5. Til hver ringhalvdel er det fastsveiset to holdeorganer 6,7 som har mot hverandre rettede fliker 8,9, og mellom disse holdeorganer er innskutt delsylindriske betonglégemer 10 som således er holdt full^stendig på plass av holdeorganene. Ringdelene 2 og 3 rager inn mellom røret 1 og betongelementene 10 og danner således avstandsstykker 11,12 mellom disse deler, slik at betongele^-mentene 10 ikke kan beskadige overflaten av røret 1. -Av fig. 3 fremgår videre at det er mulig ved en slik utforming av ledningen å anbringe denne i en viss krumning' uten at det skjer en berøring mellom overflaten og betongele-^-mentene, idet det kan tillates en krumning hvis pilhøyde i betonglegemets lengde er mindre enn tykkelsen av avstands-legemene 11,12. Ved den her viste ut f ørelsesf orm er avstands^-stykkene en integrerende del av spennringene, men kan også være utført som separate avstandsstykker som enten kan strekke seg helt rundt røret eller understøtte dett.e på et passende antall steder. In fig. 1 and 2 are the underwater line 1 which here e.g. is a tube of plastic material, e.g. polyvinyl chloride or polyethylene, provided with two semi-circular parts clamped at a distance from each other, consisting of clamping rings 2 and 3, where each ring half has a protruding tab 4, and which are clamped against each other by means of bolts 5. Two holding members 6,7 are welded to each ring half which have mutually directed tabs 8,9, and between these holding members are inserted semi-cylindrical concrete bodies 10 which are thus held completely in place by the holding members. The ring parts 2 and 3 project between the pipe 1 and the concrete elements 10 and thus form spacers 11,12 between these parts, so that the concrete elements 10 cannot damage the surface of the pipe 1. - From fig. 3 further shows that it is possible with such a design of the line to place it in a certain curvature without contact between the surface and the concrete elements, since a curvature can be permitted if the height of the arrow in the length of the concrete body is less than the thickness of the spacer bodies 11,12. In the embodiment shown here, the spacers are an integral part of the clamping rings, but can also be made as separate spacers that can either extend completely around the pipe or support it in a suitable number of places.

Claims (2)

1. Undervannsledning, såsom en kabel eller et rør, hvor det for stabilisering av ledningens posisjon, utvendig er anbrakt vektbelastningsorganer i form av to eller flere betongelementer som tilsammen omslutter ledningen,karakterisert vedat betongelementene er holdt på plass mellom to to- eller flerdelte, rundt ledning fastspente spennringer som har inn over betongelementene gripende holdeorganer og er innrettet til å tjene som avstandsstykker mellom ledningen og betongelementene.1. Underwater line, such as a cable or a pipe, where, to stabilize the line's position, weight-loading devices are placed on the outside in the form of two or more concrete elements that together enclose the line, characterized by the fact that the concrete elements are held in place between two two- or multi-part, around wire clamped clamping rings that have holding devices gripping over the concrete elements and are designed to serve as spacers between the wire and the concrete elements. 2. Vektbelastningsanordning for anvendelse i forbind-élse med en undervannsledning ifølge krav 1,karakterisert vedat den består av to spennringer som hver er dannet av to eller flere spennringseksjoner med som avstandsstykker mellom ledningen og to- eller flerdelte delsylindriske betonglegemer tjenende flensformede deler, hvilke spennring-seksj oner har radialt utragende, for innbyrdes sammenspenning av seksjoner tjenende fliker, og hvor hver seksjon er forsynt med minst em-som holdeorgan for betonglegemené tjenende hake.2. Weight loading device for use in connection with an underwater line according to claim 1, characterized in that it consists of two clamping rings each of which is formed by two or more clamping ring sections with as spacers between the line and two- or multi-part semi-cylindrical concrete bodies serving as flange-shaped parts, which clamping ring -sections have radially projecting tabs that serve to clamp sections together, and where each section is provided with at least a hook that serves as a holding device for the concrete body.
NO782743A 1977-08-19 1978-08-11 SUBSIDIARY LINE, SUCH AS A CABLE OR RUBBER, AND A WEIGHT LOADING DEVICE FOR USE OF SUCH PIPES NO782743L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK370977A DK370977A (en) 1977-08-19 1977-08-19 SUBSIDIARY LINE AS A CABLE OR PIPE AND WEIGHT LOADING DEVICE FOR USE OF SUCH PIPES

Publications (1)

Publication Number Publication Date
NO782743L true NO782743L (en) 1979-02-20

Family

ID=8125914

Family Applications (1)

Application Number Title Priority Date Filing Date
NO782743A NO782743L (en) 1977-08-19 1978-08-11 SUBSIDIARY LINE, SUCH AS A CABLE OR RUBBER, AND A WEIGHT LOADING DEVICE FOR USE OF SUCH PIPES

Country Status (9)

Country Link
DK (1) DK370977A (en)
ES (1) ES472693A1 (en)
FI (1) FI782528A (en)
FR (1) FR2400657A1 (en)
GB (1) GB2002870A (en)
GR (1) GR64960B (en)
IT (2) IT7868935A0 (en)
NO (1) NO782743L (en)
SE (1) SE7808738L (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1214959B (en) * 1985-10-29 1990-01-31 Oma Di Baratella Paolo TUBULAR COMPOSITE STRUCTURE FOR UNDERWATER CONVEYANCE OF FLUIDS.
NO311054B1 (en) * 1997-04-29 2001-10-01 Kvaerner Oilfield Prod As Underwater control cable
NO312541B1 (en) * 1999-11-03 2002-05-27 Gto Subsea As Method and apparatus for moving rocks and loose masses under water
FR2945098B1 (en) 2009-04-30 2011-05-27 Technip France DEVICE FOR PROTECTING AT LEAST ONE CONDUIT LOCATED AT THE BOTTOM OF A WATER EXTEND AND ASSOCIATED FLUID TRANSPORT ASSEMBLY
CN102022585B (en) * 2010-11-17 2012-09-26 中国海洋石油总公司 Submarine pipeline buckling preventing device, and manufacturing method and mounting method thereof
CN102359661B (en) * 2011-08-22 2013-04-24 天津大学 Method for manufacturing and fixing submarine pipeline buckle arrestor on basis of morphological energy adsorption
DE102013112914A1 (en) * 2013-11-22 2015-05-28 Egeplast International Gmbh Plastic profile, in particular plastic pipe
CN104455728B (en) * 2014-11-25 2016-06-29 天津大学 A kind of submarine pipeline lateral displacement control method
CN108679304A (en) * 2018-06-22 2018-10-19 中国石油大学(华东) A kind of tortoise shape flexibility submerged pipeline clump weight
CN111878627B (en) * 2020-07-20 2021-09-17 浙江海洋大学 Shock-resistant and vibration-resistant submarine pipeline protection device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662552A (en) * 1952-10-06 1953-12-15 Edgar A Rowe River weight for pipe lines
US3240512A (en) * 1964-10-26 1966-03-15 Reynolds Metals Co Weight means for underwater pipe lines

Also Published As

Publication number Publication date
FR2400657A1 (en) 1979-03-16
IT7853631V0 (en) 1978-08-21
GR64960B (en) 1980-06-10
GB2002870A (en) 1979-02-28
DK370977A (en) 1979-02-20
ES472693A1 (en) 1979-03-16
SE7808738L (en) 1979-02-20
FI782528A (en) 1979-02-20
IT7868935A0 (en) 1978-08-21

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