DBPapers
DOI: 10.5593/SGEM2014/B12/S2.070

INTERPRETATION OF CPT TESTS IN HOLOCENE DEPOSITS. CASE STUDY URLATI-ROMANIA

M. Stanciucu
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-08-7 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 2, 551-558 pp

ABSTRACT
The Cone Penetration Test (CPT), have become in the last decades, a versatile instrument for subsurface geotechnical investigations, which provide a large amount of information about the soils. Correlations between CPT data and soil parameters obtained through other tests are worldwide spread but their accuracy and applicability depends on local geological conditions: age of formations, degree of consolidation, source area of sediments, mineralogical composition, etc. This paper presents some comparisons between CPT results and laboratory tests or SPT tests executed on the same location in Romania, Prahova County, Urlati town. The sequence consists in Holocene alluvial deposits (alternances of cohesive and uncohesive layers), which was geotechnical investigated with boreholes up to 30m and with CPT on 15m depth. The investigation was completed with common laboratory test (granulosity, oedometric and direct shear tests) which offered a comparison base for the correlations sustained by the main formulas cited in the scientific literature. Results obtained may be considered representative for subconsolidate shallow deposits in foreland areas.

Keywords: consolidation, CPT, SPT.