TY  - JOUR
T1  - Methodological and Experimental Approach of the Desilting by Injection
AU - , L. Ouerdachi AU - , M.F. Habita AU - , H. Boutaghane 
JO  - Journal of Engineering and Applied Sciences
VL  - 2
IS  - 12
SP  - 1716
EP  - 1723
PY  - 2007
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2007.1716.1723
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2007.1716.1723
KW  - WID
KW  -porous media
KW  -desilting
KW  -dredging
KW  -injection
KW  -underflow
AB  - Algeria is located in the category of countries poor in water resources, fast silting up passing the 65 millions of m3 year <SUP>1</SUP>. It reduced considerably storage capacity of many reservoirs. In order to remedy several inconveniences of dredging used mainly in Algeria, we propose a method that is like the Water Injection Dredging (WID). It consists in injecting water resulting in an overtaking of material resistance, from where it appears a failure area. Underflow provoked by opening of outlet gate acts like a flushing. It was possible to us to value volume recovered of restraint with a simplified theoretical formulation of injection and modelling of behaviour hydromechanics of injected soil massifs and resolution equations gotten by finite element. Survey is completed by a scale model study. One could provide interesting indications on efficiency of method proposed while showing existence of critical values for pressure and speed of injection; values open to several technological interpretations.
ER  -