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Utvärdering av djupdränering och infiltration i innerslänt – väg 126, Torpsbruk: Del 2, kompletterande data
Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
Golder Associates .
2013 (Swedish)Report (Other academic)Alternative title
Evaluation of deep-drainage and infiltration in road verge along road 126, Torpsbruk (English)
Abstract [sv]

Detta notat innehåller kompletterande data från undersökning av fukt, dränering och grundvatten utmed väg 126 nära Torpsbruk. Slutsatser: Djupdränering: • är en effektiv metod att reglera grundvattenytan. • ger en snabb sänkning av grundvattennivån. • kan påverka grundvattennivåer relativt långt från vägen. • sänker fukthalten i vägkroppen. • måste regelbundet underhållas. • kan rekommenderas på platser som har högt grundvatten och jordskärning. Tätning av innerslänt: • innebär ingen självklar fördel för vägkroppen. • innebär att fukthalten stabiliseras och toppar av fukt- respektive torrperioder utjämnas. • kan hindra vatten att komma ut ur vägkroppen, om det av någon anledning kommer in exempelvis genom sprickor i beläggningen eller med uppträngande grundvatten. På undersökningsplatsen finns 13 manuellt avläsningsbara grundvattenrör, 7 rör med automatisk registrering och 4 rör med vattenhaltsgivare installerade. Tidigare resultat är publicerade i VTI notat 13-2012.

Abstract [en]

This report contains additional data from the study of moisture, drainage and groundwater along highway 126 near Torpsbruk, Sweden. The following are the main conclusions to be drawn from the experiments with sealed road verge and deep drainage system. Deep Drainage (with the Trammel system): • the installation of a deep drainage system can be recommended in places that have high ground water table and road cut in soil. • an effective method to control groundwater. • lowering the ground water table is very fast. • deep drainage can affect groundwater levels relatively far from the road area. • it reduces the moisture content of the road structure. • it needs to be maintained regularly. Sealed road verge: • no self-evident advantage of the sealed road verge in every case. • it stabilizes the moisture content – peaks of moisture and dry periods are leveled out. • it can prevent water from coming out of the road structure if water for any reason is coming in e.g. through cracks in the coating or penetrating groundwater. On the studied site are 13 groundwater level pipes (manual reading), 7 groundwater level pipes (automatic reading) and 4 pipes with moisture content sensors installed. Previous results are published in VTI Notat 13-2012.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2013. , 36 p.
Series
VTI notat, 36-2013
Keyword [en]
Drainage, Ground water, Moisture content, Pipe, Road verge, Slope (terrain), Method, Evaluation (assessment), Measurement
National Category
Infrastructure Engineering
Research subject
Road: Highway design, Road: Drainage and runoff
Identifiers
URN: urn:nbn:se:vti:diva-6768OAI: oai:DiVA.org:vti-6768DiVA: diva2:695505
Available from: 2014-02-11 Created: 2014-02-11 Last updated: 2014-09-18Bibliographically approved

Open Access in DiVA

fulltext(2731 kB)88 downloads
File information
File name FULLTEXT01.pdfFile size 2731 kBChecksum SHA-512
09b0c79c0cb76c9c985fba6476873a13b1dad445c7cc3d243f2db994c1ab99741c4fefb17980c9fe1523e380379817ebbb378ea08010ed77f81da34b00153358
Type fulltextMimetype application/pdf

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CiteExportLink to record
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