DBPapers
DOI: 10.5593/SGEM2014/B32/S13.016

EVALUATION OF SELECTED LOCALITY OF EAST-SLOVAKIAN LOWLAND BY SOIL POTENTIAL FOR VOLUME CHANGES

M.Gombos, A.Tall, D.Pavelkova
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-14-8 / ISSN 1314-2704, June 19-25, 2014, Book 3, Vol. 2, 115-122 pp

ABSTRACT
Soil volume changes during water saturation are caused by clay minerals in soil, especially of illite and montmorilonite group. The knowledge of these changes is important for engineering works as well as basic hydrological research. Soil volume potential can be quantified by means of COLE potential (Potential of Linear Extensibility). COLE values are determined in laboratory on intact soil samples. It is a time-demanding and arduous process. This paper presents spacial ditribution of selected part of East-Slovakian lowland on the basis of COLE potential. COLE values were determined by indirect method. For this purpose, a pedotransfer function which illustrates relation between COLE and content of coloidal and physical clay (particles < 0.002mm) was created. During field measurements, 106 samples were taken in order to perform grain-size analysis. The results of spacial evaluation of soil volume changes potential are presented by means of GIS.

Keywords: Clay, Volume changes, Potential of Linear Extensibility

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