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Markens betydelse för vägräckens funktion: FUD RT Vägkroppens betydelse för vägutrustningars funktion
Swedish National Road and Transport Research Institute, Infrastructure, Crash safety.
2017 (Swedish)Report (Other academic)Alternative title
Soil influence on barrier functionality (English)
Abstract [sv]

Bakgrund; Trafikverket önskade mer kunskap om hur marken påverkar funktionen hos typprovad vägutrustning.

Syfte: Att få ökad kunskap om hur marken påverkar funktionen hos typprovad vägutrustning.

Metod: Dynamiska prov med krockvagn, några statiska dragprov samt avslutningsvis ett par krockprov med fordon.

Resultat: Ståndare som har ett nedstick kortare under marknivån än 1,0 meter bör kategoriskt undvikas. Slänt bör inte anläggas närmare än 0,6 meter bakom ett vägräcke. I mark med sämre bärighet eller packningsbarhet påvisar projektet att man med all sannolikhet enkelt förbättrar vägräckens generella funktion genom att förlänga vägräckesståndare ned i marken.

Abstract [en]

Background; Trafikverket (the Swedish Transport Administration) was asking for enhanced information about interaction between soil grading, bearing capacity and type approved vehicle restraints systems.

Purpose: To get enhanced knowledge about interaction between soil grading, bearing capacity and type approved vehicle restraints systems.

Method: Dynamic testing with an impact sled, some static push/pull tests and finally some full-scale crash testing with a passenger car into a barrier.

Results: Barrier posts should not have a shorter length below ground level than 1.0 meter. A slope shoulder behind a barrier installation should not be arranged closer than 0.6 meter behind the same. In soil with less bearing capacity or compact ability it is probably possible to enhance barrier functionality by using even longer barrier posts, with a larger proportion of the post being inserted into ground.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2017. , 137 p.
Series
VTI rapport, ISSN 0347-6030 ; 923
Identifiers
URN: urn:nbn:se:vti:diva-11747OAI: oai:DiVA.org:vti-11747DiVA: diva2:1085887
Available from: 2017-04-03 Created: 2017-03-30Bibliographically approved

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Wenäll, Jan
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