Hydraulic conductivity of tailings sand used for dam construction at Aitik mine in Sweden
2012 (Engelska)Ingår i: SWEMP 2012: International symposium on Environmental Issues and Waste Management in Energy and Mineral Production, 2012Konferensbidrag, Publicerat paper (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
2012.
Nationell ämneskategori
Geoteknik
Forskningsämne
Geoteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-27181Lokalt ID: 0868c88e-cb35-47fa-8e76-5fe58795af1bOAI: oai:DiVA.org:ltu-27181DiVA, id: diva2:1000363
Konferens
International Symposium on Environmental Issues and Waste Management in Energy and Mineral Production : 28/11/2012 - 30/11/2012
Anmärkning
Godkänd; 2012; 20130521 (ysko)
2016-09-302016-09-302018-04-19Bibliografiskt granskad