Title Overconsolidation ratio determination of cohesive soil /
Authors Urbaitis, Donatas ; Lekstutytė, Ieva ; Gribulis, Domas
DOI 10.3846/13bsgc.2016.014
ISBN 9786094579578
eISBN 9786094579561
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Is Part of 13th Baltic Sea region geotechnical conference. Historical experience and challenges of geotechnical problems in Baltic Sea region : 22-24 September 2016 Vilnius, Lithuania : conference proceedings.. Vilnius : Technika, 2016. p. 108-113.. ISBN 9786094579578. eISBN 9786094579561
Keywords [eng] Consolidation ; overconsolidation ratio (OCR) ; oedometer test (OED) ; cone penetration test (CPT) ; overconsolidate soil, overconsolidation pressure ; glacial clay ; Lithuania
Abstract [eng] In order to evaluate overconsolidation ratio (OCR) of soil, the necessity to restore them as much as possible to in situ conditions appears, because sometimes when it is not taken into account, mistakes could be made while interpreting mechanical – strength properties of the soil. According to the work purpose, overconsolidation ratio of the investigated soil was set by performing odometer test and the obtained values were compared with the OCR calculated from cone and seismic penetration data. When the tests were performed and data analysed, it was found that OCR values depends on soil occurance depth, strength characteristics and stress conditions. The OCR values decreases with the declination of the depth. As many authors noted in the literature – the upper part of the soil is consolidated abnormally, thereby we can see that in our work. When results are evaluate, we can conclude that all of the analysed soils was overconsolidation. That was demonstrated by calculations according static penetration, oedometer test and seismic waves results. OCR values differences between the laboratory and field tests can show low quality of soil sampling, also due to correlations which was applied.
Published Vilnius : Technika, 2016
Type Conference paper
Language English
Publication date 2016