EJPAU 2007. Malinowska E. , Sas W. , Szymański A. NONLINEAR WATER FLOW CHARACTERISTICS DESCRIBING ORGANIC SOIL CONSOLIDATION

Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

2007
Volume 10
Issue 4

Topic:

Civil Engineering

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Malinowska E. , Sas W. , Szymański A. 2007. NONLINEAR WATER FLOW CHARACTERISTICS DESCRIBING ORGANIC SOIL CONSOLIDATION, EJPAU 10(4), #41.
Available Online: http://www.ejpau.media.pl/volume10/issue4/abs-41.html

NONLINEAR WATER FLOW CHARACTERISTICS DESCRIBING ORGANIC SOIL CONSOLIDATION

Edyta Malinowska¹, Wojciech Sas², Alojzy Szymański¹
¹ Department of Geotechnical Engineering, Warsaw University of Life Sciences - SGGW, Poland
² Laboratory - Water Centre, Warsaw University of Life Sciences - SGGW, Poland

ABSTRACT

Constructions of embankments on soft organic soils cause many problems. Because of their specific properties the organic soils, such as peats, are characterized by a large porosity, small shear strength and a large initial permeability which decrease during consolidation. The main task of an engineer is to predict and calculate the real amount of vertical and horizontal deformations which are relatively large in soft soils. In the deformation process of soil skeleton under loading the porosity decreases and causes the changes of permeability characteristics. Therefore the water flow characteristics are very important to be considered in predicting and calculating the subsoil deformations under load. Also it is found in many papers that the relationship between the water flow velocity and the hydraulic gradient is non linear in the specific range of void ratio depending on the soil properties. In this paper the results of water flow characteristics obtained in laboratory tests are presented.

Key words: nonlinear water flow characteristic, consolidation process, deformations, organic soils, peat.

Edyta Malinowska
Department of Geotechnical Engineering,
Warsaw University of Life Sciences - SGGW, Poland
Nowoursynowska Str. 159, 02-776 Warsaw, Poland
email: edyta_malinowska@sggw.pl

Wojciech Sas
Laboratory - Water Centre,
Warsaw University of Life Sciences - SGGW, Poland
Nowoursynowska Str. 159, 02-776 Warsaw, Poland
Phone: + 48 22 59 35401
email: wojciech_sas@sggw.pl

Alojzy Szymański
Department of Geotechnical Engineering,
Warsaw University of Life Sciences - SGGW, Poland
Nowoursynowska Str. 159, 02-776 Warsaw, Poland
Phone: + 48 22 59 35401
email: alojzy_szymanski@sggw.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.