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Hydraulic conductivity of tailings deposit used as dam construction material at Aitik mine in Sweden
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.ORCID-id: 0000-0001-7800-7075
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.ORCID-id: 0000-0002-1365-8552
2013 (Engelska)Konferensbidrag, Enbart muntlig presentation (Refereegranskat)
Abstract [en]

Distribution of vertical and horizontal hydraulic conductivity and their correlation to geotechnical parameters affecting the hydraulic conductivity of tailings deposit at Aitik mine have been determined. The investigation was carried out along three sections which cover approximately 3km2 of area and 4-5meters of thickness. 3-5 test pits have been excavated in each section and samples are collected from various levels. The horizontal hydraulic conductivity has been found to have a good relation with fraction of fine particles in the deposit and void ratio. However, similar to the results of Jantzer et al (2008) from the same mine, the vertical hydraulic conductivity did not correspond to void ratio. According to evaluation of existing empirical relations to estimate hydraulic conductivity from particle size analysis, Hazen formula (1911) gives 25 and 45 times the measured values of vertical and horizontal hydraulic conductivity respectively. On the other hand, Chapuis et al (2003) has not been succeeded for prediction of hydraulic conductivity of undisturbed samples from the investigated area. However, it gives comparatively good prediction of hydraulic conductivity for disturbed samples which are compacted to their field dry density.

Ort, förlag, år, upplaga, sidor
2013.
Nyckelord [en]
Tailing dam, Civil engineering and architecture - Geoengineering and mining engineering
Nyckelord [sv]
Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
Nationell ämneskategori
Geoteknik
Forskningsämne
Geoteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-32044Lokalt ID: 667ffd56-2b73-4682-8227-10e20b3f4190OAI: oai:DiVA.org:ltu-32044DiVA, id: diva2:1005278
Konferens
Association of Environmental & Engineering Geologists Annual Meeting : Dam Rehabilitation, Removal, and Design 08/09/2013 - 15/09/2013
Anmärkning
Godkänd; 2013; 20130903 (amizei)Tillgänglig från: 2016-09-30 Skapad: 2016-09-30 Senast uppdaterad: 2018-04-19Bibliografiskt granskad

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