Influence of structure on the mechanical behavior of an agricultural clay soil

Authors

  • Robert Medjo Eko ASABE
  • Claude Lague University of Ottawa

Keywords:

isotropic state, suction, unsaturated soil, soil structure.

Abstract

A better understanding of soil mechanical properties is needed to assess soil compaction in clay soil. To fill that need, a research program was undertaken at Laval University, Quebec city, Canada to ultimately find better solutions in managing Sainte Rosalie clay compacted by liquid manure spreaders.

The soil used for the investigation was collected from a field where soil compaction was monitored. It was statically compacted in loose and dense states to reflect the soil conditions above and below the plow pan. Tests on both saturated and unsaturated samples of Sainte Rosalie clay were then carried out. They were conducted within an isotropic stress state framework to analyze the mechanical behavior of the soil.  

Data gathered from the investigation show that different compaction states lead to different loading-collapse (LC) yield curves.

Author Biographies

Robert Medjo Eko, ASABE

Robert MEDJO EKO, PhD, Engineer
Associate Professor, Faculty of Science, University of Yaoundé I

Yaoundé, CAMEROON

Cell. phone:   (237) 7600 0162

E-mail: rmedjo@yahoo.com

Claude Lague, University of Ottawa

Laguë, ClaudeDean and Professor

Faculty of Engineering

University of Ottawa

 

Ph.D. (University of California - Davis, 1990)

M.Sc. (Université Laval 1986)

B.Sc.A. (Université Laval 1982)

E-mail: claude.lague@uottawa.ca

Phone :613-562-5800 Extension : 6175

Downloads

Published

2012-09-24

Issue

Section

I-Land and Water Engineering