ENVASEMENT DES BARRAGES DANS LES REGIONS ARIDES EXEMPLES ALGERIENS
Journal Title: Larhyss Journal - Year 2016, Vol 27, Issue 27
Abstract
This article examines the phenomenon of silting of dams in arid regions. Its complexity poses enormous problems to managers of dams. Siltation is the result of deposits of mud of soil erosion in watersheds and the sapement of riverbanks. It is in times of flood dams are silting by density currents. It is the first floods of autumn that bring the greatest quantity of mud. We approached the process of siltation of dams. The erosion of the watersheds was treated with a comparative study between the values recorded in the Maghreb. Not to mention the phenomenon of sapements the banks of wadis that has never been the subject of serious study. Tons of land is eroded annually and transported directly to the sea and dams. Sediment transport; a very important part in the process of silting was reviewed in this paper. The last step was devoted to the problems and ways to fight against the silting of dams.
Authors and Affiliations
REMINI B. | Département des Sciences de l’Eau et Environnement, Faculté de Technologie, Université Blida1, Blida 9000, Algérie, BENSAFIA D. | Département des Sciences de l’Eau et Environnement, Faculté de Technologie, Université Blida1, Blida 9000, Algérie
THE WATER SUPPLY OF OASIS BY ALBIAN FOGGARA: AN IRRIGATION SYSTEM IN DEGRADATION
This paper discusses a type of foggara most common in the Algerian Sahara. This is the Albian foggara. Currently, 820 foggaras a total length exceeding 2000 km and exploit the Intercalary Continental aquifer on the per...
HISTOIRE DE LA GOUVERNANCE DE L’EAU (PREMIERE PARTIE)
Cette rtrospective de l’itinraire de la gouvernance de l’eau a permis de constater que les plus anciennes civilisations se sont installes et dveloppes dans des rgions extrmement arides mais autour de grands fleuves...
CONTRIBUTION A LA CARACTERISATION PHYSICOCHIMIQUE DES EAUX DE PLUIE DE LA REGION DE TIZI-OUZOU TRAITEMENT PAR FILTRES PLANTÉS
Water is vital to all living things. It is important to have in long-term in sufficient quantity and quality to ensure a healthy and safe life. In this work, a particular attention is given to rain waters and their re-...
PROBLEMATIQUE D’AMENAGEMENT ET CONFLIT D’USAGE DE L’EAU EN ZONE DE MONTAGNE, CAS DES MONTS DE BENI CHOUGRANE (NORD-OUEST ALGERIEN)
The water management in mountain areas is a major concern in Algeria; due to the twin problems it poses, namely, siltation of dams and the degradation of soil fertility. To this end, a new form of organization of water...
ÉTUDE DE LA SÉCURITÉ D’UN SYSTÈME D’ALIMENTATION EN EAU PAR LES RÉSEAUX DE PETRI HYBRIDES
Dans cet article, nous nous sommes intéressés à un système d’alimentation en eau potable caractérisé par un comportement hybride : une partie discrète (c’est le cas des ouvrages de pompage et de distribution...