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Tillämpning av just-in-time i byggproduktion: En fallstudie inom logistik & materialhantering i byggbranschen
University of Borås, Faculty of Textiles, Engineering and Business.
2021 (Swedish)Independent thesis Basic level (university diploma), 180 HE creditsStudent thesis
Abstract [en]

All production companies strive for efficiency, which means that you want to achieve a certain quality with the least possible use of resources. The construction industry is facing an exciting future where production strives to develop in line with lean production.

Purpose: The purpose of this research is to investigate how a construction company work with their material management at a construction site and to study what challenges and opportunities the company come across in the application of just-in-time deliveries.

Method: This is a qualitative case study where data were collected via literature, interviews and observations. Observations were made at the construction site on three occasions to collect more data that strengthens the validity of the results. Lean production, lean construction and just-in-time is chosen as the degree project theoretical frame of reference that is compared in relation to the study's empirical data.

Findings: In this study, it appears that the construction company experiences certain problems with the side contractor and that the pandemic has played its role in the production flow. The company sees opportunities with just-in-time deliveries to avoid unnecessary material handling, while it also happens that missed deliveries create unnecessary costs and that just-in-time can be risky to use if complications arise with the deliveries.

Limitations: The research is limited to a medium-sized a construction company with a turnover of approximately SEK 600 million / year and is limited to material handling and just-in-time deliveries. Interviews were conducted with the site manager and two supervisors.

Abstract [sv]

All produktion strävar efter effektivitet vilket innebär att man vill uppnå en viss kvalitet med minsta möjliga resursanvändning. Byggbranschen står inför en spännande framtid där produktionen strävar efter att utvecklas i linje med lean production.

Syftet: Syftet med examensarbetet är undersöka hur ett byggföretag arbetar med sin materialhantering på en byggarbetsplats samt studera vilka utmaningar och möjligheter företaget möter vid en tillämpning av just-in-time leveranser.

Metod: Detta är en kvalitativ fallstudie där data samlats in via litteraturer, intervjuer och observationer. Observationer gjordes på byggarbetsplatsen vid tre tillfällen för att samla in mer data som stärker resultatets validitet. Lean production, lean construction och jus-in-time har valt som examenarbetet teoretiska referensram som jämförs i relation till studiens empiriska data.

Resultat: I denna studie framkommer att byggföretaget upplever viss problematik med sidoentreprenören och att pandemin har spelat sin roll i produktionsflödet. Företaget ser möjligheter med just-in-time leveranser för att undvika onödig materialhantering samtidigt som det även förekommer att uteblivna leveranser skapar onödiga kostnader och att just-in-time kan vara riskabelt att använda om det uppstår komplikationer med leveranserna.

Begränsningar: Arbetet är begränsat till ett medelstort byggföretag som omsätter ca 600 Milj/år och avgränsat till materialhantering och just-in-time leveranser. Intervjuer gjorde med platschefen och två arbetsledare.

Place, publisher, year, edition, pages
2021.
Keywords [en]
lean production, lean construction, just-in-time, waste, 5S, side contract, standardization
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hb:diva-26467OAI: oai:DiVA.org:hb-26467DiVA, id: diva2:1595454
Supervisors
Examiners
Available from: 2021-09-20 Created: 2021-09-19 Last updated: 2021-09-20Bibliographically approved

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