Etude de la retenue collinaire sur Oued Hadjra commune de Sour el Ghozlane (w. Bouira)

Abstract

In this work, we conducted a study to carry out a small dam on Oued Hadjra wilaya of Bouira to irrigate about 40 hectares of agricultural land. We started this work by the topographic, geological and geotechnical study to characterize the feasibility of the site. The hydrological study made it possible to determine the flood flow rate, which is estimated at 89 𝑚3𝑠⁄ for a return period of 100 years. The regularization allowed quantifying the volume store which is of 150376.24 𝑚². The laminated flow rate is 63.92 𝑚3 / 𝑠. The type of dike chosen is homogeneous earth with a height of 13.06m. The type of spillway is USBR with a width of 15m and a height of 1.6m. Our study is completed by the site organization that allows the smooth running of the work, as well as a quantitative and financial estimate of our project.