The objectivesThe objectives in this project can be summarised in the following points :Bibliographic synthesis on the characteristics of soil of sebkha and strengthening of embankments on compressible soils;Understand and identify the peculiarities of soil behavior of sebkha of Chott El Hodna ;Numerical simulation using the PLAXIS software the effect of strengthening the embankment and the evolution of subsidence;Choice of ground behavior model Support for predicting subsidence;Monitoring the evolution of consolidation subsidence by topographic survey of 11 Km of Road crossing Chott El Hodna as well as behavior of drainage structures ;Define a methodology for study and construction of road embankment reinforced with geosyntheticscrossing difficult areas particularly sebkhas of chotts;Development a recommendation document the use of contractors and laboratory engineers;Training engineers of the present partner on the embankment reinforcement technique crossing the areas of sebkha;Supervision of a PhD topic on the present project; Participation in international conferences and publishing in international journals