CS238509B1 - Thin-walled pipe with protective coating - Google Patents

Thin-walled pipe with protective coating Download PDF

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Publication number
CS238509B1
CS238509B1 CS833319A CS331983A CS238509B1 CS 238509 B1 CS238509 B1 CS 238509B1 CS 833319 A CS833319 A CS 833319A CS 331983 A CS331983 A CS 331983A CS 238509 B1 CS238509 B1 CS 238509B1
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Czechoslovakia
Prior art keywords
foil
thin
pipe
protective
pipeline
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CS833319A
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Czech (cs)
Slovak (sk)
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CS331983A1 (en
Inventor
Manfred H Olbertz
Pavol Kabina
Dusan Huska
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Manfred H Olbertz
Pavol Kabina
Dusan Huska
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Application filed by Manfred H Olbertz, Pavol Kabina, Dusan Huska filed Critical Manfred H Olbertz
Priority to CS833319A priority Critical patent/CS238509B1/en
Publication of CS331983A1 publication Critical patent/CS331983A1/en
Publication of CS238509B1 publication Critical patent/CS238509B1/en

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Abstract

Vynález spadá do odboru stavebníetva a slúži pre tlakový rozvod vody najma v závlahách a vo vodnom hospodárstve. Rieši konštrukciu potrubia, ktorá pozostáva z rúry z fólie, ktorá je obalená vrstvou z ochrannéj textilie vzájomne cez seba přeloženou. Vrstva ochrannéj textilie moze byf na okrajoch spojená a v časti nad fóliou poskládaná z oboch stráň ku středu, alebo v časti nad i pod fóliou poskládaná z oboch stran ku středu. Vrstva ochrannéj textilie može byl aj dvojitá, vzájomne cez seba přeložená, Jeho podstata je v tom, že obvod pružnej folie v nenaplnenom stave je 1,6 až 5 krát menší obvod ochrannéj vrstvy.The invention belongs to the field of construction and is used for pressure water distribution, especially in irrigation and water management. It solves the construction of a pipeline, which consists of a tube made of foil, which is wrapped with a layer of protective fabric, folded over each other. The layer of protective fabric can be connected at the edges and folded from both sides to the center in the part above the foil, or folded from both sides to the center in the part above and below the foil. The layer of protective fabric can also be double, folded over each other. Its essence is that the circumference of the flexible foil in the unfilled state is 1.6 to 5 times smaller than the circumference of the protective layer.

Description

Vynález sa týká tenkostenného potrubia s ochrannou vrstvou.The invention relates to a thin-walled pipe with a protective layer.

Doteraz vyrábané tlakové rúry pre transport tekutin sú schopné odolávat vnútornému tlaku vyvolanému transportovanou tekutinou v závislosti od hrůbky steny rúry a druhu materiálu, z ktorého sú rúry zhotovené. To znamená, že u rovnakého druhu materiálu rúry, schopnost odolávat vnútornému tlaku bude stupat s hrubkou jej dteny. Nevýhodou týchto, ináč najviac rozšířených rúr v stavebnéj praxi, je ich vysoká hmotnost a s tým súvisiaca vysoká cena. Shnot nosťou stúpajú Sálej i nároky na mechanizačně prostriedky pri ich transporte a montáži. Tlakové rúry zabudované v určitéj híbke v zemi je možné budovat aj z tenkostennej, velmi pružnéj a roztažné j fólie, ktorá následkom vnútorného tlaku sa v zemine rozpíná, t.j. zváčšuje svoj objem dovtedy, kým sa vnútorný tlak transportovanej tekutiny v potrubí nevyrovná s pasivným a aktívnym tlakom okolitej zeminy. Ich nevýhodou je nutnost vyhotovenia jemného piesočnatého obsypu okolo celého potrubia, ktorý zabraňuje priamemu dotyku fóliovéj steny rúry s rastlou a zásypovou zeminou a ktorý takto zabraňuje jej případnému mechanickému poškodeniu pri zvačšovaní priemeru rúry. Výstavba pieskového obsypu je náročná na transport materiálu a ručnú prácu, ktorá podstatné zdražuje vlastnú výstavbu ináč lačného potrubia.The fluid transport pressure tubes produced hitherto are able to withstand the internal pressure exerted by the transported fluid, depending on the pipe wall depth and the type of material from which the tubes are made. That is, for the same kind of pipe material, the ability to withstand internal pressure will rise with the thickness of its core. The disadvantage of these, otherwise the most widespread pipes in construction practice, is their high weight and the associated high cost. Due to this fact, the requirements of the mechanical means for their transport and assembly are increasing. Pressure pipes built in a certain depth in the ground can also be constructed of a thin-walled, very flexible and stretchable foil which expands in the ground due to internal pressure, i.e. it increases its volume until the internal pressure of the transported fluid in the pipeline is equal to the passive and active pressure of the surrounding soil. Their disadvantage is the necessity of making a fine sand fill around the whole pipeline, which prevents direct contact of the foil wall of the pipe with the growing and backfill soil and thus prevents its possible mechanical damage while increasing the diameter of the pipe. The construction of the sand fill is demanding for material transport and manual work, which significantly increases the cost of the construction of the other pipe.

Uvedené nevýhody odstraňuje tenkostenne potrubie s ochrannou vrstvou proti poškodeniu pre tlakový rozvod tekutin uložené v zemine vyrobené z pružnéj fólie obalenej ochrannou textíliou vzájomne přeloženou alebo poskládanou nad aj pod fóliou z oboch stráň ku středu podlá vynálezu, ktorého podstata je v tom, že obvod *· 2 *·These disadvantages are overcome by the thin-walled pipe with an anti-damage coating for the pressure distribution of ground-based fluids made of a flexible foil wrapped with a protective fabric interleaved or folded above and below the foil from both sides to the center according to the invention. 2 * ·

238 509 pružnéj fólie v nenaplnenom stave je 1,6 až 3 krát menší ako obvod ochrannéj vrstvy. Ochranná textília musí byť dostatočně hrubá, aby zaručovala ochranu fóliovej steny rúry voči poškodeniu náhodnými kameňami alebo inými ostrými predmetmi, najmá pri zasypávaní ryhy. Ylastná fóliová rúra sa može obalovat výnimoČne i na stavbě pri ukládání do ryhy, ale najefektívnejší sposob je ukladanie už továrensky obalenej foliovej rúry ochrannou textilnou vrstvou.238 509 of the flexible film in the unfilled state is 1.6 to 3 times smaller than the circumference of the protective layer. The protective fabric must be sufficiently thick to ensure that the foil wall of the oven is protected against damage by accidental stones or other sharp objects, especially when filling the trenches. The plastic foil tube can be wrapped exceptionally on the construction site when folded, but the most effective way is to store the factory-coated foil tube with a protective textile layer.

Výhodou tenkostenného potrubia s ochrannou vrstvou podlá vynálezu je, že jeho použitie umožňuje zjednodušit technológiu výstavby tlakového podzemného potrubia kontinuálnym ukládáním potrubia priamo za ryhovačom, tedy s použitím kolmého výkopu ryhy bez nutnosti paženia ryhy a výstavby pieskového obsypu. Po naplnění potrubia vodou pri minimálnom tlaku je možné toto potrubie ihneň zasypat póvodným výkopkom. Pri továrenskom obalovaní potrubia je potřebné vziať do úvahy, že rozťažnost fólie je podstatné vyššia ako je roztažnost ochrannej textilie. Z uvedeného dovodu je potřebné usporiadanie ochrannej vrstvy podía vynálezu, ktoré umožňuje ochrannej- vrstvě prisposobit sa zvácšovaniu priemeru fóliového potrubia v zemine.The advantage of the thin-walled pipeline with the protective layer according to the invention is that its use makes it possible to simplify the technology of construction of the pressure underground pipeline by continuously placing the pipeline directly behind the trench, thus using perpendicular trench excavation After filling the pipeline with water at minimum pressure, the pipeline can be covered with the original excavation. In the factory coating of pipelines, it should be taken into account that the stretch of the film is substantially higher than that of the protective fabric. From these reasons, the arrangement of the protective layer of the present invention, which allows the protection - to adapt the layer by increasing the diameter of the pipe in the soil of the film.

Na priloženom výkrese je na obr. 1 znázorněný rez tenkostenným potrubím s ochrannou vrstvou - dvojitou vzájomne cez seba přeloženou. Na obr. 2 je ochranná vrstva v časti nad fóliou poskla daná z oboch stráň ku středu a na obr. 3 je takto poskládaná aj v časti pod fóliou. Na obr. 4 je znázorněný rez ryhy, v ktorej je uložené a zasypané naplněné potrubie podía vynálezu. Na obr.5 je znázorněný příklad uloženia potrubia do ryhy užšej ako je předpokládaný priemer kruhového potrubia. Na obr. 6 znázorněný příklad uloženia potrubia bezvýkopovou technológiou. Na obr. 7 znázorněný rez rýhou, v ktorej je uložené a zasypané potrubie s eliptickým prierezom á na obr. 8 je znázorněný rez rýhou s uloženým potrubím s nepravidelným priečnym profilom.In the accompanying drawing, FIG. 1 shows a cross-section through a thin-walled pipe with a protective layer - double folded over one another. In FIG. 2, the protective layer in the portion above the foil has been folded from both sides to the center, and in FIG. 3 is thus folded also in the part under the foil. In FIG. 4 is a cross-sectional view of a groove in which the filled conduit of the present invention is stored and buried. Fig. 5 shows an example of grooving the pipe narrower than the expected diameter of the circular pipe. In FIG. 6 shows an example of pipe laying by trenchless technology. In FIG. 7 is a cross-sectional view of a groove in which the elliptical cross-sectional pipe a of FIG. 8 is a cross-sectional view of a grooved pipe with an irregular cross-section.

Tenkostenné potrubie s ochrannou vrstvou znázorněné na obrázkoch pozostáva z pružnéj fólie 1 a ochrannej vrstvy 2.The thin-walled pipe with protective layer shown in the figures consists of a flexible film 1 and a protective layer 2.

- 3 238 509- 3 238 509

Výrobok znázorněny na obr· 1 je vhodný na budovanie potrubí do 0 400 mm rýhovou technológiou, pri ktorej je šířka ryhy rovná alebo váčšia než předpokládaný priemer kruhového potrubia. Vlastně potrubie je dodávané na stavbu strčené v kotúči po 50, respektive po 100 m a odmotávané z ryhovača a behom výkopu ukládané na dno ryhy· Pri napínaní potrubia vodou sa jeho priečny profil zváčšuje a jednotlivé pásy ochrannej textilie sa po sebe posúvajú a umožňujú zaujať fóliovému potrubiu kruhový prierez pri čom mu zabezpečujú dokonalá ochranu. Po naplnění potrubia vodou pri kludovom tlaku sa rýha zasype - obr· 4·The product shown in Fig. 1 is suitable for building pipes up to 0 400 mm with groove technology where the groove width is equal to or greater than the expected diameter of the circular pipe. In fact, the piping is delivered to the building in a 50 or 100 m reel, and unwound from the trench and laid on the bottom of the trench during excavation. · When the pipeline is stretched with water, its cross-section is enlarged and individual strips of protective fabric move a circular cross-section, providing perfect protection. After filling the pipeline with water at rest pressure, the groove is covered - fig · 4 ·

Výrobok znázorněný na obr. 2 je vhodný na výstavbu potrubí do 0 400 mm, ktoré sa z technologických dovodov ukladajú do rýh užších ako je předpokládaný priemer kruhového potrubia - obr. 5, v ktorých potrubie nadobudne eliptický priečny profil dlhšia os elipsy bude zvislá, preto celý posun ochrannej textilie sa bude drať smerom nahor. Uvedený výrobok je taktiež vhodný pri budovaní potrubí bezvýkopovou technológiou - obr. 6, kde vzhl’adom na stavebná technológiu je možné zváčšovanie profilu napínaného potrubia len smerom nahor.The product shown in FIG. 2 is suitable for the construction of pipelines up to 0 400 mm, which are put into technological grooves narrower than the expected diameter of the circular pipeline - fig. 5, in which the pipeline acquires an elliptical cross-section, the longer axis of the ellipse will be vertical, therefore the entire displacement of the protective fabric will be upward. Said product is also suitable for pipeline construction by trenchless technology - fig. 6, where due to the construction technology it is possible to increase the profile of the stretched pipe only upwards.

Výrobok znázorněný na obr. 3 je vhodný pre budovanie potrubí nad 0 400 mm rýhovou technológiou, pri ktorej je šířka ryhy rovná alebo váčšia ako priemer předpokládaného kruhového prierezu potrubia. V tomto případe sa bude potrubie pri napínaní vodou roztláčať do stráň a zaujme eliptický prierez - obr. 7, ktorého dlh·» šia os bude vodorovná. Ďalej je uvedený výrobok vhodný pre budovanie potrubí bez ohladu na ich priemer pri ukládání do rýh s neúnosným rozbahneným dnom, kedy potrubie po naplnění vodou bude mať nepravidelný priečny profil - obr. 8.The product shown in FIG. 3 is suitable for building pipelines above 0 400 mm by creasing technology in which the crease width is equal to or greater than the diameter of the projected circular cross-section of the pipeline. In this case, the pipeline will be pushed into the hillside by tensioning with water and will take an elliptical cross-section - fig. 7, whose longer axis will be horizontal. Furthermore, the product is suitable for building pipes regardless of their diameter when laying in trenches with unbearable sloping bottom, when the pipe after filling with water will have an irregular cross-section - fig. 8th

Po naplnění vodou je možné tenkostenné potrubie s ochrannou vrstvou ihneň zasypať póvodným výkopkom. Vo všetkých uvedených prí padoch je ochranná vrstva vyrobená buň z jedného alebo dvoch pásov vpichovanej textilie z druhotných surovin z polypropylénových póly esterových alebo polyethylénových vlákien, dobré odolných voči hni tiu v zemine.After filling with water, thin-walled piping with protective layer can be covered with original excavation. In all cases, the protective layer is a cell made of one or two strips of needled fabric of secondary raw materials of polypropylene poles of ester or polyethylene fibers, well resistant to rotting in the ground.

Vynález spadá svojím využitím jednak do plastikářského priemyslu, jednak do stavebnicťva, najmá vodárenstva a výstavby závlahThe invention falls into the plastics industry, construction, water supply and irrigation

Claims (1)

- 4 - P R E D Μ B T V Y í JÍ L B Z U 238 509 Tenkostenné potrubie s ochrannou vrstvou proti poškodeniupre, tlakový rozvod tekutin ^uložené v zemine vyrobené z pružné jfólie obalenej ochrannou textíliou vzájomne přeloženou aleboposkládanou nad aj pod fóliou z oboch stran ku středu vyznačujú-ce sa tým, že obvod pružnej fólie (1) v nenaplnenom stave je 1,6 až 3 krát menší ako obvod ochrannej vrstvy (2). 1 výkres- 4 - PRESENTATION LBZU 238 509 Thin-walled duct with a protective coating, pressure distribution of liquids stored in a soil made of flexible foil wrapped with a protective fabric folded over and folded over and under the foil on both sides to the center of the that the circumference of the flexible film (1) in the unfilled state is 1.6 to 3 times smaller than the circumference of the protective layer (2). 1 drawing
CS833319A 1983-05-12 1983-05-12 Thin-walled pipe with protective coating CS238509B1 (en)

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CS238509B1 true CS238509B1 (en) 1985-11-13

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