Abstract
Pre-compression effects on shear strength and deformation characteristics of compacted cohesive soils and associated stability evaluation of embankment slopes were discussed in this paper. Series of laboratory element tests were carried out on the strength behavior of compacted soils in order to investigate relationships of such influential factors as compaction conditions, fine content of material and other mechanical parameters to the values of the pre-compression stress pc and those of strength parameters (c, φ) in the stress ranges under and over pc. Finite element stress and deformation analyses were then conducted for several model embankments to study their stress states after placement and to evaluate stability of embankment slopes by taking the strength characteristics obtained in the element tests into account.
