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Academic literature on the topic 'Pålning'
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Dissertations / Theses on the topic "Pålning"
Leyton, Israel. "Åtgärdsplan mot sättningsskador : En allmän jämförelse mellan pålning- och geopolymermetoden." Thesis, KTH, Byggteknik och design, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-215311.
Full textDemand for foundation reinforcement has increased significantly and is becoming more andmore common around the world. Today, there are several solutions for settlement damages,as well as the various factors that determine which one is most suitable. In Sweden, piling andconcrete reinforcement are the most common methods, but the use of geopolymer is alsobecoming increasingly popular action plan against settlement damages.The solution to settlement damage itself is to reinforce the soil on which the structure is built.The major problem is that the methods available for solving settlement problems today arecomplicated and expensive to perform.The geopolymer method is a technology based on injecting the geopolymer into the soil, whichis then responsible for reinforcing it by a swelling effect from it’s chemical reaction. Themethod is considered extremely efficient and with no major interference to the surroundingenviroment when repair occurs.This thesis deals with the effectiveness of the geopolymer technology in comparison to othertraditional basic reinforcement methods, such as piling. The comparison itself is more focusedon the economic and technical aspects of each method, with a slight insight into it’senvironmental impact.When we build more, it becomes more common to build on soil with poorer conditions, whichmeans that the development of reinforcement methods and ground stabilization becomesessential for future settlement problems.
Andersson, Camilla, and Anna Hulefors. "Jämförelse av kostnadseffektivitet för grundläggningsmetoder." Thesis, KTH, Betongbyggnad, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147824.
Full textThe aim of this thesis is to investigate cost efficiency of four foundation methods and conclude at which depth to solid rock the economic breaking point is located. This was done by investigating models based on two ongoing projects at Sweco Structures AB. The study comprised costs for design, material and production. The costs for the design phase have been examined in cooperation with Sweco Structures AB, whilst costs for material and production have been defined through interviews with contractors and suppliers.The foundation methods that have been studied in this master thesis are; piling with drilled steel piles, driven concrete and steel piles and casting of concrete footings (after excavation to solid rock). Design calculations of concrete foundations and concrete footings have been carried out according to Eurocode 2 and Betonghandboken. Staticload capacity has been calculated for each pile; both analytically and numerically. To be able to analyze the price accuracy a median, lowest-, highest and an average value have been calculated for all costs. All final calculations are performed in Mathcad 15.0. Since the calculations are automated it is possible to use the file as a guideline for designs and decision-making regarding foundation method, for example when establishing documents in the tenderstage.The conclusion of this investigation is that the choice of a foundation method depends on many different factors, which may vary widely for different projects. Due to varying conditions that may require a unique technical solution, it is difficult to give general recommendations. The result from this investigation shows that the method, excavation and casting of concrete footings on solid rock, is the most cost efficient method if depth to solid rock is less than 2,3 m. The most cost efficient method according to this master thesis is driven steel piles.
Jacobson, Linnea, and Viktor Karlsson. "Design Model for Driven Concrete Piles According to Eurocode." Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-118573.
Full textDahlqvist, Thomas, and Mårten Parbrand. "Dataprogram för beräkning av pålfundament och felslagning av pålar." Thesis, Linköping University, Department of Science and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1361.
Full textSyftet med detta examensarbete är att producera ett dataprogram som dimensionerar pålfundament samt beräknar felslagning av pålar. Ett pålfundaments funktion är att via pålar överföra laster till berg eller fasta jordlager. Felslagning inträffar då pålar inte hamnat på rätt koordinater eller glidit snett ned i marken och ej kan användas. Med hjälp av felslagningsprogrammet erhålles nya påkoordinater för nästkommande påle, vilken måste placeras ut så att tyngdpunkten för hela pålsystemet skall hamna rätt. Programmeringsspråket vi använt oss av är Visual Basic, där vi har omvandlat teoretiska beräkningar till databeräkningar. Detta har resulterat i ett dataprogram som beräknar 2-, 3- och 4-pålsfundament samt tar fram en ny påles koordinater vid felslagning. Vid beräkning av pålfundament tas hänsyn till armeringsmängd, förankring, sprickbildning samt spjälkning.
Simmons, Gustav. "Pålade plattor för stora laster : En jämförelse mellan nätarmerade och fiberarmerade betong plattor." Thesis, Linköping University, Department of Science and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1297.
Full textFunktionskraven på industrigolv har under senare år ökat. Ett industrigolv skall klara att överföra laster till underlaget samt utgöra ett fast och plant underlag. I denna rapport har två utföranden av påldäck för golv i lagerlokaler jämförts. Den traditionella metoden med armeringsnät har jämförts med en något nyare metod med stålfiberarmerad betong. Jämförelserna har gjorts under förutsättning att golvet skall belastas med 3 ton per kvadratmeter. Kostnader, tidsåtgång såväl som produktionstekniska egenskaper har undersökts. En undersökning av förhållandet mellan pålavstånd och plattutformning har också gjorts.
Ett referensobjekt har valts och dess förutsättningar har legat till grund för jämförelsen. Information från arbetsplatser, underentreprenörer och kalkyler har sammanställts för de två metoderna. Kalkyler och tidplaner har sedan upprättats och jämförts.
Fiberarmerad betong är dyrare än nätarmerad betong. Med avseende på tid är fiberbetongen det klart bättre alternativet. Ur produktionssynpunkt är fiberbetongen att föredra förutom vid de fall då golvvärme önskas. Resultaten visar att fiberbetong kan vara en lönsam lösning för golv med krav på stora laster då man vill komma in i byggnaden i ett tidigt skede.
Resultatet av jämförelsen mellan pålavstånd och plattutformning bör utredas närmare för att säkerställa att bästa plattutformning används.
The demands on industrial flooring have increased. The floor has to be able to transfer load to the substructure and function as a plain solid surface. This report compares two different methods of the construction of piled slabs. The traditional method with mesh reinforced concrete is compared with a method using concrete reinforced with steel fibers. The comparison is made under condition of a 30 kN/m2 load. The investigation includes cost, time consumption and production factors. An investigation of the relation between pile distance and slab design will also be done.
A reference object has been chosen. Both construction methods have been investigated using the current conditions connected to the object. Information from construction sites, subcontractors and cost estimates has been put together. Updated cost estimates and time plans have been created and compared.
The fiber reinforced concrete is more expensive than mesh reinforced concrete. Fiber reinforced concrete consumes less time than mesh reinforced concrete and is more favorable when production factors are compared. Fiber reinforced concrete can’t be used together with under-floor heating.
The result states that fiber reinforced concrete can be a profitable solution for slabs with heavy loads and demands for an early entrance to the building. The result from the relation between pile distance and slab design should be investigated further to make sure the most favorable slab design is used.
Jonsson, Sofia, and Terese Dahlgren. "ETT KALLBADHUS FUNKTIONER OCH BYGGTEKNISKA LÖSNINGAR FÖR DET NORDISKA KLIMATET." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik och belysningsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-42435.
Full textEkdahl, Malin. "Grundläggning på lera : Inför exploatering av Södra Lödöse." Thesis, Jönköping University, JTH, Civil Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-12518.
Full textRapporten är en sammanställning av de vanligaste grundläggningsmetoderna samt pålning och hur de kan användas vid grundläggning på lera i Sverige.
Examensarbetet är utfört som en del i ett forskningsprojekt . Handledare har varit Yvonne Andersson Sköld på SGI samt Kaj Granath på Tekniska Högskolan i Jönköping.
Fallstudieområdet är i Lödöse som ligger i Lilla Edets kommun. Samhället har idag 1 300 invånare och är beläget 10 km söder om Lilla Edet samt 30 km norr om Göteborg, längs med Göta Älv. Vid den nya sträckningen av Norge- Vänerbanan samt utbyggnaden av E45 kommer det att bli en knutpunkt ca 1 km söder om Lödöse samhälle. Kommunen planerar att placera ca 500 nya bostäder mellan samhället och den nya pendeltågsstationen.
Intervjuer har gjorts av tre tjänstemän på Lilla Edets kommuns avdelningar Samhällsplanering, Plan- och Bygg samt Miljö. En litteraturstudie är genomförd där tillgänglig forskning har studerats.
Området ligger på lera och Banverket har i sina utredningar konstaterat att det även finns kvicklera på området. Kvicklera har konstaterats vid medparten av de undersökta skreden i Göta Älvdalen. Vid byggnation på lera krävs omfattande geotekniska undersökningar för att fastställa markens sammansättning. Framtidens klimatförändringar ställer ökade krav på nya byggnader. De byggs i dagens klimat men ska klara av morgondagens.
Den forskning och de rapporter inom området, grundläggning på lera, som jag har tagit del av förordar platta på mark. De förordar även pålning vid högre och tyngre byggnader än ett enfamiljshus. Dock så krävs det mer forskning inom området då kopplingen mellan grundläggning och markförhållandena är otillräckligt undersökt.
This thesis is a summary of the most common footings and pole-work found in Sweden and how they apply in buildings on clay.
The thesis is a part of a research project. Supervisors have been Yvonne Andersson Sköld at SGI and Kaj Granath at the School of Engineering, Jönköping University.
Place of study is located at Lödöse in the municipality of Lilla Edet. Lödöse has 1 300 citizens and is placed 10 km south of Lilla Edet and 30 km north of Göteborg, along Göta Älv. The intersection of the new two-track railway from Göteborg to Trollhättan and the enhanced highway E 45 is 1 km south of Lödöse. The municipality is planning to build approximately 500 new buildings in the area next to the new station.
I have interviewed three civil servants at the municipality of Lilla Edet for the Department of Urban Planning, Civil Planning and Building and the Department of Environment. I have also made a study of literature where I have read relevant research.
The site of study has a ground consisting of clay. The National Rail Administration has through research at the area found that the ground also contains quick clay. The threat of landslides due to the quick clay is considerable. Quick clay has been found in the ground after examined landslides in the region of Göta Älv. In the process of building new houses an extended research of the ground is necessary to establish the components and the composition of the ground. Due to the climate changes of the future we need to change the way we build our houses so they manage to stay intact for more extreme weather.
Ekman, Anna, and Omar Soulin Molla. "Utbyggnad av Gröna Lund : Ett förslag till utformning av Skeppsholmsviken 6." Thesis, KTH, Byggteknik och design, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259710.
Full textAim: The aim of the thesis is to investigate and design the extension of Gröna Lund within the property of Skeppsholmsviken 6 in regards to the factors that affected the formation. Methods: Interviews were conducted with people involved in the current project. A survey was administered on social media to explore public opinion and requisition tied to the extension work. Furthermore, an audit of detailed plans, reports and drawings was carried through. Results: The constructions resulted in five buildings placed along the coastline facing Saltsjön and a public board walk in terms of a dock which should be accessible for passage through Skeppsholmsviken 6. Conclusions: The results show that the extension of Gröna Lund has a strong cultural and historical attachment and will benefit the public and visitors of Gröna Lund. Additionally, the extension will have positive ecological, social and economic consequences such as increased safety, tourism, job opportunities and reduced traffic. The extension can be made ecologically sustainable by using wood as a building material, build it on piles and raising the dock a bit over the water surface to get a larger light transmission.
Nilsson, Samuel, and Ilir Tahiri. "Grundläggning av ny bro på postglacial lera i Uppsala." Thesis, Malmö universitet, Fakulteten för teknik och samhälle (TS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20420.
Full textIn this thesis, a geotechnical investigation has been performed to assess if the foundation of abridge over Fyrisån, Uppsala, can be founded by plate foundation. The work has been based oninvestigating how the postglacial clay affects the construction based on the current groundconditions. Questions being answered are: what challenges there are in building the bridge atthe current location, what difficulties there are in building the bridge according to conventionalmethods and what foundation methods can be used to construct the bridge and how these shouldbe applied. The work has been carried out through a literature study. A case study has beenperformed of the soil conditions in Fyrisån which shows that the soil consists in general offilling on silty dry clay crust on sulfide clay on clay/silt on friction soil. The depth to rock is 55meters.The main challenge with this specific soil are the large compression, which is a result of largedepth and the fact that the soil consists of sulfide clay. The calculations by hand correspond thecalculation done in Plaxis 2D where the results show that the soil breaks in the undrained stateand the compression is 0,41m, 0,52 m by hand, compared to the maximum requirement of 50mm. The choice of foundation is piling due to the uncertainty of reaction betweenlimestone/cement and sulfide and the risk of acidification.The condition on which the calculations are based on is compared to completed probes whichshows a good correspondence. Any abnormalities are concluded to be a result of the soil’scontent of residual of shell. In conclusion the study shows that the foundation cannot be donewith a plate foundation and the soil has to be reinforced due to the large compression of thesoil.
Höglund, Marcus, and Oscar Forsén. "Erfarenheter från användning av sekantpålning som stödkonstruktion : Fallstudier från projekt i Sverige." Thesis, KTH, Byggvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-174123.
Full textThe goal of the report is to present machines, staff and requisite experience data within secant piling. The information may be utilized in comparison with other piling methods by corporations. Secant piling is used as a support structure whose task is to keep the soil from sliding in to the pit during excavation. Its positive aspects of the environment are a contributing factor to increased use of the method. By achieving lower vibration levels and minimize the reduction in the groundwater level, the method adds value. The secant pile method is extensively used abroad and nowadays it begins to be operated in Sweden. Now when Trafikverket has approved secant piling as a permanent structure, the method can lead to more usage in Sweden. The secant pile method in itself is not affected by the Swedish soil and climatic condition. It is the technique you are utilizing when using secant piling that’s affected by the geological and hydrogeological conditions. Soil that is consisting of boulders or variable stone sizes should use CSP technology with casing drilling. Techniques that don’t work in these soil conditions is CFA and CAP, which instead uses an auger drill. These techniques are utilized when the soil consists of solid clay or friction soil, which makes the work of the auger drill much easier than if the land consists of stone blocks. The conclusion of the report indicate that secant piles are the more expensive option, and that the method cannot compete with the more conventional support structures in that regard. To understand that secant piles will be beneficial the method must be seen from a broader perspective and you have to look at the impact of the surroundings and the soil conditions. In this way, added value is created. The method is suitable in urban setting with nearby buildings, where noise and vibration is an influencing factor. Projects that have embraced the secant pile method have varying costs, since they have used different secant pile techniques. At Norra länken 12 and 22 they used the CSP technology that had a capacity to make 2.5 piles per day at a cost of 11,500 SEK/m². In Bagers Plats in Malmö they used the CFA technology at a cost of 2,500 SEK/m². At Folkungagatan in Stockholm they used the CAP technology at a cost of 4,500 SEK/m². The method has both advantages and disadvantages. The advantages are that the method is flexible which means that it can be adapted to the desired geometry. This method helps to reduce vibration, which in turn minimizes the risk of subsidence. The disadvantages are that secant piling is more expensive than conventional supporting structures because of the method is time consuming. When secant piles that are used as a permanent support structure the anchor rods have to be tightened often and that is time consuming. The report presents the construction projects where secant piling is used. Projects presented in the report are Odenplan station, Spjutmo kraftstation, Norra länken 12 and 22, Bagers plats and Folkungagatan.