NO770752L - FORM OF THE PILLAR "FJELLSTOE" FOR CABINS AND HOUSES - Google Patents
FORM OF THE PILLAR "FJELLSTOE" FOR CABINS AND HOUSESInfo
- Publication number
- NO770752L NO770752L NO770752A NO770752A NO770752L NO 770752 L NO770752 L NO 770752L NO 770752 A NO770752 A NO 770752A NO 770752 A NO770752 A NO 770752A NO 770752 L NO770752 L NO 770752L
- Authority
- NO
- Norway
- Prior art keywords
- sleeve
- pipe
- pillar
- pipes
- annular space
- Prior art date
Links
- 229920003023 plastic Polymers 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
- 238000009415 formwork Methods 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/60—Piles with protecting cases
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Foundations (AREA)
- Body Structure For Vehicles (AREA)
Description
Foreliggende oppfinnelse angår en anordning ved pilarer for oppsetting i grunnen, der det er gravet et hull til frostfri dybde, omfattende et prefabrikert plastrør som blivende forskaling for den b.etongstøpte pilaren, og der det koaksialt utenpå plastrøret er anordnet et andre rør på en slik måte at det blir dannet et ringrom mellom de to rørene. The present invention relates to a device for pillars for setting up in the ground, where a hole is dug to a frost-free depth, comprising a prefabricated plastic pipe as the permanent formwork for the concrete-cast pillar, and where a second pipe is arranged coaxially outside the plastic pipe on such in such a way that an annulus is formed between the two pipes.
Pilarer av den ovennevnte type benyttes til fundamentering av bygg og anlegg osv. Selv om pilarene er ført Pillars of the above type are used for foundations of buildings etc. Even if the pillars are led
ned til frostfri dybde, utøver allikevel telen en løftevirk-ning på pilarene om vinteren. Denne løftevirkning er velkjent, og beror på at fuktig grunnmasse utvider seg ved frysing og utvidelsen må foregå i retning oppover mot det fri. Under denne bevegelsen oppover trekker den frosne grunnmassen med seg pilarene oppover. På grunn av at massen raser innunder den nedre enden av pilaren, som står i frostfri dybde, får man en varig heving av pilarene. down to a frost-free depth, the wire nevertheless exerts a lifting effect on the pillars in winter. This lifting effect is well known, and is due to the fact that moist ground mass expands during freezing and the expansion must take place in an upward direction towards the open air. During this upward movement, the frozen ground mass pulls the pillars upwards with it. Due to the fact that the mass collapses under the lower end of the pillar, which is at a frost-free depth, a permanent elevation of the pillars is obtained.
Fra norsk utlegningsskrift nr. 115-378 er det kjentIt is known from Norwegian interpretation document no. 115-378
en fremgangsmåte til oppbygging av søyler for fundamentering av hus, hvor det benyttes en prefabrikert, blivende forskaling for en betongstøpt pilar, der materialet, f.eks. plast, i forskalingen har en slik egenskap at den ikke fester til den herdede betongen. Hensikten er at den frosne jorden kan ta tak i forskalingsrøret og heve dette uavhengig av betongpilaren. Det utvendige trykket på røret blir imidlertid av meget bety-delig størrelse, og røret må derfor være meget sterkt for å motstå trykket. a method for building up columns for the foundation of a house, where a prefabricated, permanent formwork is used for a concrete-cast pillar, where the material, e.g. plastic, in the formwork, has such a property that it does not stick to the hardened concrete. The purpose is that the frozen soil can take hold of the formwork pipe and raise it independently of the concrete pillar. However, the external pressure on the pipe is very significant, and the pipe must therefore be very strong to withstand the pressure.
Fra U.S.-patent nr. 3.630.037 er det kjent en pilar hvor man utenpå pilaren koaksialt har anordnet en elastisk sammentrykkbar hylse som har en slik diameter at det dannes et ringrom mellom pilaren og hylsen. Ringrommet er tettet i begge ender og er fylt med en frostfri væske. Hensikten er da at når jorden fryser, vil utvidelsen kunne skje i retning innover mot pilaren, idet den frysefrie væsken presses ut av ringrommet. Derved vil det ikke bli noe stort press mot den egentligeppilaren. En slik anordning vil imidlertid være meget kostbar, og vil være meget sårbar for lekkasjer i væske-systemet. From U.S. patent no. 3,630,037, a pillar is known where an elastically compressible sleeve has been arranged coaxially on the outside of the pillar and has such a diameter that an annular space is formed between the pillar and the sleeve. The annulus is sealed at both ends and is filled with a frost-free liquid. The purpose is then that when the earth freezes, the expansion will be able to take place inwards towards the pillar, as the freezing-free liquid is forced out of the annulus. There will therefore be no great pressure on the main pillar. However, such a device would be very expensive, and would be very vulnerable to leaks in the liquid system.
Hensikten med foreliggende oppfinnelse er derfor å fremskaffe en anordning ved pilarer for oppsetning i grunn, The purpose of the present invention is therefore to provide a device for pillars for installation in the ground,
der virkningen av telehiving søkes mest mulig eliminert og hvilken anordning er billig i produksjon og robust under bruken, slik at det ikke kreves noe spesielt vedlikehold eller tilsyn. where the effect of telelifting is sought to be eliminated as much as possible and which device is cheap to manufacture and robust during use, so that no special maintenance or supervision is required.
Dette oppnås ifølge oppfinnelsen ved en anordningAccording to the invention, this is achieved by a device
ved pilarer for oppsetting i grunn, der det er gravet et hull til frostfri dybde, omfattende et prefabrikert plastrør som blivende forskaling for den betongstøpte pilaren, og der det koaksialt utenpå plastrøret er anordnet et andre rør på en slik måte at det blir dannet et ringrom mellom de torp?ørene, in the case of pillars for installation in the ground, where a hole has been dug to a frost-free depth, comprising a prefabricated plastic pipe as the permanent formwork for the concrete-cast pillar, and where a second pipe is arranged coaxially outside the plastic pipe in such a way that an annular space is formed between those tor?ears,
og Mrør det karakteristiske består i at det i ringrommet mellom de to koaksiale rørene er anordnet en utfyllende hylse av elastisk materiale, fortrinnsvis skumplast (poreplast), hvilken hylse er glidbar i forhold til i det minste ett av de omgivende rørene, fortrinnsvis begge. and Mrør the characteristic consists in the fact that in the annular space between the two coaxial tubes there is arranged a complementary sleeve of elastic material, preferably foam plastic (porous plastic), which sleeve is slidable in relation to at least one of the surrounding tubes, preferably both.
Ved en■foretrukket utførelses form for oppfinnelsenIn a preferred embodiment of the invention
er den i ringrommet anordnede hylsen dimensjonert slik at den utøver et trykk mot rørveggene på de to omgivende rørene. the sleeve arranged in the annulus is dimensioned so that it exerts pressure against the pipe walls of the two surrounding pipes.
Ifølge oppfinnelsen oppnås det på en enkel måte en fot på pilaren ved at det ytre røret rager et stykke nedenfor den nedre ende av det indre røret, og at hylsen er avsluttet i samme dybde som det indre røret, slik at det ved støping fåes en fot med samme diameter som det ytre rørets innvendige diameter. Et hensiktsmessig materiale for hylsen er polyuretanskum. Et hensiktsmessig materiale for de to rørene er hård polyeten. According to the invention, a foot on the pillar is achieved in a simple way by the outer tube projecting a little below the lower end of the inner tube, and the sleeve being finished at the same depth as the inner tube, so that a foot is obtained by casting with the same diameter as the inner diameter of the outer tube. A suitable material for the sleeve is polyurethane foam. A suitable material for the two pipes is hard polyethylene.
Oppfinnelsen skal i det følgende beskrives nærmere under henvisning til tegningen, der In the following, the invention will be described in more detail with reference to the drawing, where
fig. 1 viser en konvensjonell pilar støpt ned til fig. 1 shows a conventional pillar cast down to
frostfri dybde, vist under sommerforhold,frost-free depth, shown in summer conditions,
fig. 2 viser den samme pelen som fig. 1, vist under vinterforhold. fig. 2 shows the same pile as fig. 1, shown in winter conditions.
Fig. 3 viser pilaren ifølge oppfinnelsen, vistFig. 3 shows the pillar according to the invention, shown
under sommerforhold, ogin summer conditions, and
fig. 4 viser pilaren ifølge oppfinnelsen, vistfig. 4 shows the pillar according to the invention, shown
under vinterforhold.in winter conditions.
I fig. 1 er en konvensjonell pilar 1 gravd ned eller støpt i grunnen 2 ned under frostfri dybde 3. I denne figuren er pilaren vist under sommerforhold og er ikke utsatt for noen hiving. In fig. 1 is a conventional pillar 1 buried or cast into the ground 2 below frost-free depth 3. In this figure the pillar is shown in summer conditions and is not subject to any heaving.
I fig. 2 er pilaren i fig. 1 utsatt for telehiving,In fig. 2 is the pillar in fig. 1 exposed to telehousing,
og man ser at massen i grunnen blir presset opp til en liten topp 4 omkring pilaren 1. Videre er kraftretningen vist ved hjelp av pilene 5. Etter at pilaren er hevet, vil grus og sand ha en tendens til å rase inn i rommet 6 under pilaren, slik at man får en permanent heving av pilaren. and you can see that the mass is basically pushed up to a small peak 4 around the pillar 1. Furthermore, the direction of force is shown with the help of the arrows 5. After the pillar is raised, gravel and sand will tend to rush into the space 6 below the pillar, so that you get a permanent elevation of the pillar.
I fig. 3 fremgår pilaren ifølge oppfinnelsen. Denne består av et forskalingsrør 7 av plastmateriale, f.eks. hård polyetylen. Koaksialt utenpå dette røret er det anbragt et andre plastrør 8, likeledes fortrinnsvis av hård polyetylen. Den innvendige diameteren på røret 8 er slik at det dannes et ringrom 9 mellom det indre røret 7 og det ytre rommet 8. Som det fremgår av tegningen er det ytre røret 8 trukket et stykke nedenfor den nedre enden av plastrøret 7. I ringrommet 9 mellom rørene 7 og 8 er det innskjøvet en hylse 10 av polyuretanskum. Denne hylsen er dimensjonert slik at den sitter med presspasning mot det utvendige av røret 7 og mot det innvendige av røret 8. Hylsen slutter nedentil i samme høyde som røret 7• Som det fremgår av tegningen kan røret 8 og hylsen 10 avsluttes et stykke nedenfor toppen av røret 7, slik at det fremkommer eh avtrapping 11. Denne avtrappingen anbringes i flukt med bakkenivået 12. Enheten, som består av røret 7, røret 8 og hylsen 10 plasseres i et i bakken begravd hull 13 In fig. 3 shows the pillar according to the invention. This consists of a formwork tube 7 made of plastic material, e.g. hard polyethylene. A second plastic pipe 8, also preferably made of hard polyethylene, is placed coaxially outside this pipe. The inner diameter of the tube 8 is such that an annular space 9 is formed between the inner tube 7 and the outer space 8. As can be seen from the drawing, the outer tube 8 is drawn a little below the lower end of the plastic tube 7. In the annular space 9 between tubes 7 and 8 a sleeve 10 of polyurethane foam is inserted. This sleeve is dimensioned so that it sits with a press fit against the outside of the pipe 7 and against the inside of the pipe 8. The sleeve ends at the bottom at the same height as the pipe 7• As can be seen from the drawing, the pipe 8 and the sleeve 10 can end a little below the top of the pipe 7, so that a taper 11 appears. This taper is placed flush with the ground level 12. The unit, which consists of the pipe 7, the pipe 8 and the sleeve 10, is placed in a hole 13 buried in the ground
og betong helles ned i den øvre åpningen på røret 7. På grunn av at røret 7 og hylsen 10 er avsluttet ovenfor den nedre enden av røret 8, vil det ved støpingen fremkomme en fot 14. and concrete is poured into the upper opening of the pipe 7. Due to the fact that the pipe 7 and the sleeve 10 are terminated above the lower end of the pipe 8, a foot 14 will appear during the casting.
I fig. 4 er pilaren ifølge oppfinnelsen vist under vinterforhold. Kreftene i den frosne bakken virker mere rett horisontalt (pilene 15), og forårsaker meget liten løfting 16 av bakken. Årsaken til dette er at ekspensjonen i jorden kan foregå i horisontal retning, idet den elastiske hylsen 10 og røret 8 komprimeres innover mot røret 7. På grunn av at bakken først fryser ved overflaten 12, blir den øvre delen av røret 8 presset noe konisk med den spisse enden vendende oppover. På den måten vil en eventuell løftevirkning bli ytterligere redu-sert, idet man får en nedoverrettet komponent. Betongpilaren 17 vil således forbli upåvirket av televirkningen. In fig. 4, the pillar according to the invention is shown under winter conditions. The forces in the frozen ground act more straight horizontally (arrows 15), and cause very little lifting 16 of the ground. The reason for this is that the expansion in the soil can take place in a horizontal direction, as the elastic sleeve 10 and the pipe 8 are compressed inwards against the pipe 7. Because the ground first freezes at the surface 12, the upper part of the pipe 8 is pressed somewhat conically with the pointed end facing upwards. In this way, any lifting effect will be further reduced, as you get a downwardly directed component. The concrete pillar 17 will thus remain unaffected by the teleeffect.
Claims (5)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO770752A NO770752L (en) | 1977-03-04 | 1977-03-04 | FORM OF THE PILLAR "FJELLSTOE" FOR CABINS AND HOUSES |
FI780714A FI64684C (en) | 1977-03-04 | 1978-03-03 | ANALYZING VIDEO |
SE7802422A SE7802422L (en) | 1977-03-04 | 1978-03-03 | PILLAR DEVICE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO770752A NO770752L (en) | 1977-03-04 | 1977-03-04 | FORM OF THE PILLAR "FJELLSTOE" FOR CABINS AND HOUSES |
Publications (1)
Publication Number | Publication Date |
---|---|
NO770752L true NO770752L (en) | 1978-09-05 |
Family
ID=19883394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO770752A NO770752L (en) | 1977-03-04 | 1977-03-04 | FORM OF THE PILLAR "FJELLSTOE" FOR CABINS AND HOUSES |
Country Status (3)
Country | Link |
---|---|
FI (1) | FI64684C (en) |
NO (1) | NO770752L (en) |
SE (1) | SE7802422L (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2478362A (en) * | 2010-03-06 | 2011-09-07 | Shire Structures Ltd | A pile with a tube extending lengthwise of the pile |
-
1977
- 1977-03-04 NO NO770752A patent/NO770752L/en unknown
-
1978
- 1978-03-03 SE SE7802422A patent/SE7802422L/en unknown
- 1978-03-03 FI FI780714A patent/FI64684C/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2478362A (en) * | 2010-03-06 | 2011-09-07 | Shire Structures Ltd | A pile with a tube extending lengthwise of the pile |
GB2478362B (en) * | 2010-03-06 | 2016-06-29 | Shire Structures Ltd | Improvements in or relating to small diameter piles |
Also Published As
Publication number | Publication date |
---|---|
FI780714A (en) | 1978-09-05 |
FI64684C (en) | 1983-12-12 |
SE7802422L (en) | 1978-09-05 |
FI64684B (en) | 1983-08-31 |
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