DEADLINES

 Reception of abstracts: January 24, 2021

 Notification of abstracts: February 28, 2021

 Reception of articles (papers): April 30, 2021 University KASDI Merbah - Ouargla May 25, 2021 Faculty of Applied Sciences  Notification of articles (papers): July 15, 2021 Laboratory Exploitation and Valorization of Natural Resources in Arid Zones Link to the submission and registration platform: & Sand dunes: dry surface, but wet sub-soil https://cmt3.research.microsoft.com/User/Login?R Laboratory of Desert Bio-Geo-Chemistry eturnUrl=%2FUNSATO2021 In collaboration with: REGISTRATION FEES The UNSAT-DZ network

Nationals Foreigners Organize  Students 5.000 DA 50 € The 5th International Colloquium  Teachers 8.000 DA 100 € onUnsaturated Soils Agricultural track axis of a natural mirror  Other qualities 12.000 DA 150 € Topic

Registration fees cover digital media, lunches and coffee Unsaturated soils and arid areas breaks.

CONTACT UNSATOuargla 2021 SecretariatUNSATOuargla2021 Ouargla, November16 and 17, 2021 Faculty of Applied Sciences University Kasdi Merbah – Ouargla In partnership with: BP 511 Ouargla 30000 . Aboubakr Belkaid University, Tél/WhatsApp (+213) (0) 669 776 140 Faculty of Technology, EOLE Laboratory e-mail [email protected] University of Le Havre Normandie https://unsato.univ-ouargla.dz Laboratory LOMC, CNRS UMR 6294

https://unsat.000webhostapp.com Some means of transportation in Ouargla Abstracts and communications should not be sent by

email but via the dedicated platform whose link is indicated above. PRESENTATION AND OBJECTIVES for doctoral students in geotechnics or agronomy, working on TOPIC 5 themes integrating the non saturation of soils. Since its creation on the sidelines of the International Physics of unsaturated soils - natural and agricultural Colloquium on Unsaturated Soils (U. Tlemcen 2009), the 2- WORKSHOP ON TEACHING THE MECHANICS OF environments UNSAT-DZ network has developed continuously and today UNSATURATED SOILS Natural eco-system and Agro-system. Laboratory and field has twenty research teams, including one Tunisian and five This workshop will bring together the teacher-researchers testing. Physical characteristics, structure, texture and physique Europeans (unsat- dz.org). involved or interested in teaching this discipline. It will be a of non saturated soils. Controlled irrigation. The main objective of the UNSAT-DZ network is to serve as space for exchanging experiences, reflection and debates CIENTIFIC COMMITTEE an exchange space for university research teams dealing with around how to teach this discipline to future engineers (master S the theme of unsaturated soils, in particular in terms of level) and doctoral students. The recommendations of this CHAIRMAN: KEBAILI MustaphaU.Ouargla knowledge exchange, and scientific and technical mutual workshop will be transmitted to the guardianship. AAMOUCHE A. Maroc GOUAL I. U. assistance. In this context, UNSAT-DZ organizes its ABOU-BEKR N. U. Tlemcen HACHICHI A. USTOran International Colloquium every three years (UNSATlemcen 3- CONTEST MT180 AISSA MAMOUNE U. Temouchent HAMDI AISSA B. U. Ouargla 2009, UNSATAlger 2012, UNSATBatna 2015 and In addition, doctoral students are invited to participate in the ARABSM A. U. JAMEI M. Tunisie UNSATOran 2018). The University of Ouargla is elected to «My Thesis in 180 seconds» competition. Prizes will be BAHAR R. USTHB-Alger KARECH T. U. Batna organize the 5th edition of this Symposium on November 16 awarded to the laureates. BELAYACHI N. KHEMISSA M. U. M’Sila and 17, 2021.UNSATOuargla 2021 is a new opportunity to TOPICS BELOUAR A. U. Constantine LALOUI L. Suisse bring together academicians and professionals in relation to the BENCHOUK A. U. Tlemcen LAOUAR M.S. U. Tebessa field of unsaturated soils in order to exchange their knowledge, TOPIC 1 BENMEBAREK S. U. LAWANE A. Burkina Faso expertises, opinions and experiences. These exchanges are Hydromechanical behaviour of unsaturated soils BERGA A. U. Béchar MEKERTA B. U. Adrar framed in harmony with the overall theme and the sub-themes BERKAL I. U. Ouargla MELBOUCI B. U. th Characterization of the behaviour of unsaturated soils proposed for this 5 Colloquium. BOUAFIA A. U. MESSAST S. U. subjected to mechanical and water loads. Microscopic aspects The proposed themes are chosen so as to highlight the typical BOUROKBA S. USTOran MISSOUM H. U. and macroscopic behaviours. Laws of behaviour. Experimental problems encountered in geotechnics in arid and semi-arid CHELLOUFI H. U. Ouargla NECHNECH A USTHB-Alger and numerical analysis. regions; practitioners are sometimes confronted with soil DELAGE P. France NOUAOURIA MS U. behaviour that is poorly explained in the technical literature, TOPIC 2 DERFOUF F.M. U. Saida PANTET A. France and sometimes with design techniques that are unsuitable for Transfers in unsaturated soils DERRICHE Z. ENSTP-Alger SOULI H. France the geo-environmental context and climatic framework Solid transport, infiltration, drainage, evaporation, heat FLEUREAU J. M. France TAIBI S. France specific to arid regions. transfers. Experimental measurements and mathematical GHEMBAZA M. S. U.Bel Abbès TAVICHE I. K. Mauritanie Soil, in its various aspects of use (support for structures, modelling. GOMES CORREIA A. Portugal ZERHOUNI M. I. France

construction material and / or cultivated soil) is a complex TOPIC 3 material which has, for a long time, brought together ORGANIZING COMMITTEE Phenomena linked to unsaturation in oasis geotechnicians and agronomists around concepts of common HONORARY PRESIDENT: Pr HALILAT M.T. Rector U. Ouargla environments interest such as the influence of water content on soil CHAIRMAN: DJOUHRI Mohamed U. Ouargla behaviour. This colloquium is a new opportunity to erase the Fluctuation of the groundwater. Capillary boundaries between the sciences and to establish rise.shrinkage/swelling. hydric and geoclimatic behaviour of Abbani S. Belmaabdi A. Chikhaoui M. Kebaili N. Mekhloufi N. interdisciplinarity for open research which puts people back at the sebkhas/chotts. Valorisation of dune sands. Road Abimouloud Y. Bennouna M.S. Degha H. Khaldi B. Mennai A. the centre of its concerns. geotechnics in arid environments. Achi F. Bouakka W. Djili B. Khellou A. Meziani N. TOPIC 4 ACTIVITIES ON THE SIDELINES OF THE COLLOQUIUM Akchiche H. Boutoutaou D. Djireb S. Maarouf M. Mokhtari A. Eco-construction in raw earth Azzoug L. Bouziane L. Elabbadi S. Mansouri Z. Seggai S. 1- DOCTORAL COURSE Hydromechanical and hygrothermal behaviour of raw earth. Bahloul O. Chahed A.H. Fortas T. Mechri L. Taleb O. Laboratory and field measurements on scale 1. Modelling. Baouia K. Charikh M. Goudjil M. Meddour Y. Touil Y. The day before the opening of the colloquium, a doctoral Belferrag A. Chergui I. Kateb S. Mekhermech A. Zenkhri A. course on unsaturated soils including a theoretical part and a series of practical work is organized. This course is intended