SE451275B - System for concrete coating of pipes - Google Patents
System for concrete coating of pipesInfo
- Publication number
- SE451275B SE451275B SE8401689A SE8401689A SE451275B SE 451275 B SE451275 B SE 451275B SE 8401689 A SE8401689 A SE 8401689A SE 8401689 A SE8401689 A SE 8401689A SE 451275 B SE451275 B SE 451275B
- Authority
- SE
- Sweden
- Prior art keywords
- cladding
- reinforcement
- flexible
- inner tube
- concrete
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 5
- 239000011248 coating agent Substances 0.000 title claims abstract description 4
- 238000005253 cladding Methods 0.000 claims abstract description 39
- 239000004744 fabric Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 17
- 230000002787 reinforcement Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/06—Coatings characterised by the materials used by cement, concrete, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
- F16L58/1063—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being a sheet wrapped around the pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Pipe Accessories (AREA)
Abstract
Description
451 275 2 Detta år ett framför allt aktuellt problem vid reparation in situ av undervattensbaserade pipelines. 451 275 2 This is a particularly current problem in the in situ repair of underwater pipelines.
Unnfinninqens ändamål och viktiqaste kännetecken Uppfinningen har till ändamål att erbjuda ett sätt för be- klädnad av grova rörledningar med ett skikt av en härdbar kom- position. företrädesvis betong. på ett enkelt och. som det visat sig, effektivt sätt, varigenom ovannämnda problem löses. och detta har uppnåtts genom de i bifogade patentkrav 1 definierade delkännetecken.OBJECTS AND MOST IMPORTANT FEATURES OF THE INVENTION The object of the invention is to provide a method for cladding coarse pipelines with a layer of a curable composition. preferably concrete. in a simple and. as it turned out, effectively, thereby solving the above problems. and this has been achieved by the sub-characteristics defined in appended claim 1.
Beskrivning av ritninqarna Uppfinningen kommer i det Följande att närmare beskrivas under hänvisning till i bifogade ritning visade utföringsexempel.Description of the drawings The invention will be described in more detail below with reference to exemplary embodiments shown in the accompanying drawing.
Fig. 1-4 visar i schematiska sidovyer olika steg i sättet .|-;\ ln 451 275 enligt uppfinningen applicerat på ett parti av en pipe-line med ett mittre beklädnadsställe.Figures 1-4 show in schematic side views different steps in the method according to the invention applied to a portion of a pipe-line with a central cladding point.
Figur 5 är en sidovy motsvarande figur 1 av ett lätt modifierat utförande av sättet enligt uppfinningen. och Figur 6 visar ett tvärsnitt längs linjen VI-VI i figurß.Figure 5 is a side view corresponding to Figure 1 of a slightly modified embodiment of the method according to the invention. and Figure 6 shows a cross section along the line VI-VI in Figure.
., J Figur 1 visar i en planvy ett parti av en grov rörledning 1, vilken âr försedd med en beklädnad 2, företrädesvis av betong eller av något annat gjut- eller formbart och härdbart material. Vid det i figuren mittre partiet saknas beklâdnaden längs en sträcka 3. härefter benämnd beklådnadsstället. I figuren visas de mot beklädnadsstållet 3 vända kanterna på be- klådnadspartierna 2 vinkelråtta mot rörledningens långs- riktning. men dessa ytor kan också ha oregelbunden form.Figure 1 shows in a plan view a portion of a coarse pipeline 1, which is provided with a cladding 2, preferably of concrete or of some other castable or malleable and hardenable material. At the middle part in the figure, the cladding along a section 3, hereinafter referred to as the cladding place, is missing. The figure shows the edges of the cladding portions 2 facing the cladding steel 3 perpendicular to the longitudinal direction of the pipeline. but these surfaces can also have an irregular shape.
Figur 1 visar Första steget i sättet att återställa en skadad beläggning på en pipe-line eller att förse ett rör med en be- klâdnad för första gången. I detta utförande anbringas på ömse sidor om beklädnasstållet 3. och på relativt kort avstånd därifrån en upplagsyta 4 i form av en distansring. företrädes- vis av hårdgummi.Figure 1 shows the first step in the way to restore a damaged coating on a pipe line or to provide a pipe with a cladding for the first time. In this embodiment, a support surface 4 in the form of a spacer ring is applied on both sides of the cladding steel 3 and at a relatively short distance therefrom. preferably of hard rubber.
I figur 2 visas i en motsvarande vy hur en armering 5 placeras kring beklädnadsstâllet 3 mellan upplagsytorna 4, så att armeringen vilar mot beklådnadens 2 mantelytor på ömse sidor om beklädnadsstållet 3. Härigenom kommer armeringen att vara belägen på en nivå mellan rörledningen eller innertuben 1 och mantelytan på sagda upplagsytor 4. Armeringen år utförd som en prefabricerad. delad korg, som kan slås kring röret, och den är vid sin ena ända försedd en med en delbar ring S. som före- trädesvis nar samma ytterdimension som upplagsytorna 4. Ringen 6 är lämpligen tillverkad av rostfritt material och är dess- utom försedd med överlappsjårn. vilka gör det möjligt att på ett enkelt sätt sammanbinda flera armeringskorgar axiellt, varigenom man med standardiserade moduler av armeringskorgar saknar begränsning av beklädnadsstrâcka. 1 figur 3 visas nästa steg i sättet enligt uppfinningen, var- 451 275 4 vid man kring beklådnadsstållet applicerar en i och för sig känd textilduk 1. vilken är flexibel och våtskegenomsläpplig. och vilken vanligen användes som silduk. Denna duk 7 anbringas ovanpå de upplagsytor. som bildas av distansringarna 4 och 6. och ges ett visst överhång utanför varje distansring 4. Längs- kanterna på duken 7 är försedda med ej visade sammankopplings- organ i form av en dragkedja varmed lângskanterna sammanfogas. så att man härav erhåller en beklädnadsstället omgivande, vattengenomslâpplig hylsa.Figure 2 shows in a corresponding view how a reinforcement 5 is placed around the cladding frame 3 between the support surfaces 4, so that the reinforcement rests against the cladding surfaces of the cladding 2 on either side of the cladding steel 3. Hereby the reinforcement will be located at a level between the pipeline or inner tube 1 and the mantle surface on said bearing surfaces 4. The reinforcement is made as a prefabricated. divided basket, which can be wrapped around the tube, and it is provided at one end with a divisible ring S. which preferably reaches the same outer dimension as the support surfaces 4. The ring 6 is suitably made of stainless material and is also provided with overlap iron. which make it possible to easily connect several reinforcement baskets axially, whereby with standardized modules of reinforcement baskets there is no limitation of cladding distance. Figure 3 shows the next step in the method according to the invention, in which a textile fabric 1 which is known per se is applied around the cladding steel, which is flexible and liquid-permeable. and which is commonly used as a screen cloth. This fabric 7 is applied on top of the support surfaces. which are formed by the spacer rings 4 and 6. and are given a certain overhang outside each spacer ring 4. The longitudinal edges of the fabric 7 are provided with connecting means (not shown) in the form of a zipper with which the longitudinal edges are joined. so as to obtain a surrounding, water-permeable sleeve.
Utanpå denna duk 7 anbringas ett böjbart men i långsriktningen styvt materialskikt 8 med genomgående öppningar 9, vilket materialskikt lämpligen utgöres av en perforerad plåt. eller ett metallgaller. som svepes kring duken 7. Varje längssida på materialskiktet är försedd med var sin bârkonstruktion i form av till materialet anbragta fyrkantrör 10. vilka efter applicering av plåten runt den flexibla duken. med hjälp av sammankopplingsorgan lämpligen i form av bultar 11 samman- kopplas så att materialskiktet bildar ett sammanhållet men öppningsbart rör, som bildar utvändig stödyta för den flexibla duken 7.A flexible but longitudinally rigid material layer 8 with through-going openings 9 is applied to the outside of this fabric 7, which material layer suitably consists of a perforated sheet. or a metal grille. which is wrapped around the fabric 7. Each longitudinal side of the material layer is provided with its own support construction in the form of square tubes 10 arranged for the material, which after application of the plate around the flexible fabric. by means of interconnecting means suitably in the form of bolts 11 are interconnected so that the material layer forms a cohesive but openable tube, which forms an external support surface for the flexible fabric 7.
Efter att man sålunda byggt upp en gjutform kring beklâdnads- stället tillföres under tryck en hårdbar komposition. före- trädesvis pumpbetong genom en tillförselslang 12. Den till- förda massan kommer att fylla ut utrymmet mellan innertuben 1 och den flexibla duken 7. vilken därvid kommer att spännas utåt tills dess rörelse begränsas av materialskiktet B. Vatten eller andra rinnbarhetsbefrämjande vätskor kommer att avgå via den vâtskegenomslåppliga duken och genom öppningarna 9 i materialskiktet 8.After a mold has thus been built up around the cladding site, a curable composition is applied under pressure. preferably pumped concrete through a supply hose 12. The supplied mass will fill the space between the inner tube 1 and the flexible cloth 7. which will then be stretched outwards until its movement is limited by the material layer B. Water or other flow-promoting liquids will escape via the liquid-permeable cloth and through the openings 9 in the material layer 8.
Den gjutna kompositionen tillåtes eller bringas att hårda till stelning varpå man avlägsnar det yttre materialskiktet 8, duken 7 och distansringarna k.The cast composition is allowed or made to harden to solidify, after which the outer material layer 8, the cloth 7 and the spacer rings k are removed.
Som visas i figur 4 har man nu erhållit en ny beklädnad 13, som väl täcker beklädnadsstället. och som innefattar en armering anordnad på avstånd såväl från den nya beklädnadens yttre som inre mantelyta. Dessutom överlappar den nya w] 5 451 275 beklädnaden 13 väl den äldre beklådnaden 2, varigenom risken för sprickbildning eliminieras.As shown in Figure 4, a new cladding 13 has now been obtained, which well covers the cladding rack. and which comprises a reinforcement arranged at a distance from both the outer and inner mantle surface of the new cladding. In addition, the new cladding 13 well overlaps the older cladding 2, thereby eliminating the risk of cracking.
I figur 5 visas i en vy motsvarande figur 1 ett alternativ för första steget av sättet enligt uppfinningen. I detta fall utför man en nedarbetning av det gamla beklâdnadsmaterialet 2 på ömse sidor om beklädnadsstället 3. så att man erhåller en trappstegsformad upplagsyta 14. I detta fall bortfaller därför behovet av separata distansringar 4. eftersom armeringen kan placeras på den nedarbetningen formande upplagsytan 1k, medan formduken och dess plåthölje placeras med anliggning direkt på den gamla beklådnadens mantelyta. Vid detta utförande bortfaller I figur G visas beklädnadsstâllet i ett tvärsnitt längs linjen VI-VI i figur 3, och som framgår härav är armeringskorgens delbara ring 6 försedd med ett antal inåtriktade distans- element 15 som stöder mot innertuben 2 och därmed medverkar till att hålla armeringskorgen i rätt läge relativt inner- tuben.Figure 5 shows in a view corresponding to Figure 1 an alternative for the first step of the method according to the invention. In this case, the old cladding material 2 is worked down on both sides of the cladding rack 3. so as to obtain a step-shaped support surface 14. In this case, therefore, the need for separate spacer rings 4 is eliminated since the reinforcement can be placed on the support-forming support surface 1k. while the screen and its sheet metal casing are placed with abutment directly on the mantle surface of the old cladding. In this embodiment, Figure G shows the cladding frame in a cross section along the line VI-VI in Figure 3, and as can be seen from this, the divisible ring 6 of the reinforcing basket is provided with a number of inwardly directed spacer elements 15 which support the inner tube 2 and thus help to hold the reinforcement basket in the correct position relative to the inner tube.
Genom den utformning som sättet enligt uppfinningen erhållit år beklädnanden lätt att applicera såväl på land som under vatten. Möjligheterna att tillverka ingående formelement som moduler förbättrar också utnyttjandet i vatten. Sättet medför också att rörledningens runda form kan återställas vid reparation, och användande av en konstruktionsarmering med det noggrannt inställbara täckskiktet innebär att lagningen kan bli starkare än det ursprungliga beklädnadsskiktet.Due to the design obtained by the method according to the invention, coatings are easy to apply both on land and under water. The possibilities of manufacturing constituent elements as modules also improve the utilization in water. The method also means that the round shape of the pipeline can be restored during repair, and the use of a structural reinforcement with the accurately adjustable cover layer means that the repair can be stronger than the original cladding layer.
Uppfinningen är inte begränsad till de i figurerna visade och i anslutning därtill beskrivna utförandena utan modifikationer är möjliga inom ramen för efterföljande patentkrav.The invention is not limited to the embodiments shown in the figures and described in connection therewith, but modifications are possible within the scope of the appended claims.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8401689A SE451275B (en) | 1984-03-27 | 1984-03-27 | System for concrete coating of pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8401689A SE451275B (en) | 1984-03-27 | 1984-03-27 | System for concrete coating of pipes |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8401689D0 SE8401689D0 (en) | 1984-03-27 |
SE8401689L SE8401689L (en) | 1985-09-28 |
SE451275B true SE451275B (en) | 1987-09-21 |
Family
ID=20355313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8401689A SE451275B (en) | 1984-03-27 | 1984-03-27 | System for concrete coating of pipes |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE451275B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991011653A1 (en) * | 1990-01-29 | 1991-08-08 | Vibrodens A/S | A method and apparatus for coating the outer surface of an elongated body with a layer of concrete |
US5388317A (en) * | 1990-10-08 | 1995-02-14 | Elkem A/S | Method for reinforcing and repairing equipment parts and components subjected to heavy abrasive wear |
-
1984
- 1984-03-27 SE SE8401689A patent/SE451275B/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991011653A1 (en) * | 1990-01-29 | 1991-08-08 | Vibrodens A/S | A method and apparatus for coating the outer surface of an elongated body with a layer of concrete |
US5322656A (en) * | 1990-01-29 | 1994-06-21 | Vibrodens A/S | Method and apparatus for coating the outer surface of an elongated body with a layer of concrete |
US5388317A (en) * | 1990-10-08 | 1995-02-14 | Elkem A/S | Method for reinforcing and repairing equipment parts and components subjected to heavy abrasive wear |
Also Published As
Publication number | Publication date |
---|---|
SE8401689L (en) | 1985-09-28 |
SE8401689D0 (en) | 1984-03-27 |
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