DBPapers
DOI: 10.5593/SGEM2014/B12/S2.044

EVALUATION OF THE IMPROVEMENT FOR A DIFFICULT FOUNDATION SOIL USING VIBRATED BALLAST COLUMNS

A. Nicuta, A.Ilas, M. Barbuta, D. Lepadatu, A. A. Gaina
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, 341-348 pp

ABSTRACT
The objective of the present paper consisted in the verification of a foundation soil improved with vibrated ballast columns. The construction site under consideration is characterized by localization in an area with high hydrostatic level and uneven difficult foundation soils. In case of construction works on sites with these particular features, the used improvement methods must be adapted to the specific area and construction site. Their purpose is to increase the soil bearing capacity in relation with the effective stresses and strains transmitted by the future constructions. For the current specific site, the analysis and studies have been performed using a series of tests with the dynamic cone penetration test (DCPT) and plate loading test (PLT). Based on the analysis results, the current research intended to highlight the main features related to the correlation between the physical and mechanical characteristics of soil stratification and improved bearing capacity of the specific site.

Keywords: vibrated ballast columns, difficult foundation soil, dynamic cone penetration, bearing capacity