Unsaturated resilient behavior of a natural compacted sand     

Hossein Nowamooz  Cyrille Chazallon  Maria Ioana Arsenie  Pierre Hornych  Farimah Masrouri 《Computers and Geotechnics》2011

Granular materials are generally used in unbound layers of road pavement structures. The mechanical behavior of these materials is widely studied with repeated load triaxial tests (RLTT) in which the elastic response is defined as the resilient behavior. Usually observed under total stress conditions, the effect of pore pressure changes during loading are not usually included in design. Further, the unbound layers frequently exist under partially saturated conditions. The influence of the unsaturated state, i.e., the suction, on the mechanical behavior, of unbound granular materials for roads has not been sufficiently studied and is generally not taken into account in models used for these materials.  相似文献   

Laboratory Hydraulic Testing in Unsaturated Soils     

Farimah Masrouri  Kátia V. Bicalho  Katsuyuki Kawai 《Geotechnical and Geological Engineering》2008,26(6):691-704

This paper synthesizes the state-of-the art of the various laboratory testing techniques presently available for measuring the water hydraulic constitutive functions of unsaturated soils. Emphasis is on the laboratory testing techniques for measuring the soil–water retention curves and the water hydraulic conductivity functions of unsaturated soils. The significant recent advances in the investigation of the hydraulic behaviour of unsaturated swelling soils, are also presented. Comprehensive recent references on each measurement method are listed and discussed.  相似文献