Volume 8
Issue 3
Civil Engineering
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume8/issue3/abs-40.html
PROBLEMS OF SOILS NONHOMOGENEITY
Ryszard Kaczyński
Faculty of Geology, Warsaw University, Poland
ABSTRACT
Soils constitute the subgrade of many building objects. There is thus a justified need to identify the nonhomogeneity of soil parameters. Parameters used in engineering calculations e.g. when checking the limit state (load-bearing capacity and serviceability). The present work gives an assessment of soil nonhomogeneity, Tetiary (Pliocene) clays being taken as an example. Their microstructures, granulometric composition and major engineering-geological features have been analyzed. In the assessment of nonhomogeneity both the coefficient of nonhomogeneity/changeability and the Kagan coefficient have been considered. In the Tables listed are concrete values of the above coefficients. Particular attention has been given to the Kagan coefficient of general nonhomogeneity. Finally, critical values of the nonhomogeneity coefficient γm have been suggested (in Table 4) which can be used for the assessment of soil nonhomogeneity depending on the parameter (feature) analyzed.
Key words: nonhomogeneity, soils, properties, subsoil, capacity.
Ryszard Kaczyński
Faculty of Geology, Warsaw University, Poland
Al. Żwirki i Wigury 93, 02-089 Warsaw, Poland
phone: (+48) 22 55 40 566
email: r.r.kaczynski@uw.edu.pl
Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.