Author(s): Romero M. Mauricio; Heredia G. Marcelo
Linked Author(s):
Keywords: River confluence; Bank protection; Numerical modeling; Model calibration; Model validation; Submerged vanes; Double-sided weir; DELFT3D
Abstract: The present paper describes the assessment of the effect of stabilization works at the confluence of the Desaguadero and Jachajahuira rivers, 85 Km southwest of La Paz City, Bolivia. These works consisted in the plan modification of a meandering river (the affluent river Jachajahuira) in order to reach a more suitable conjunction angle, and the planned instalation of arrays of submerged vanes and double-sided weirs for bank protection. DELFT3D has been applied for the prediction of the morphological behavior of the study zone over a time period of 20 years. The results show that for the given prediction period, the aforementioned angle and the double-sided weir contribute to the morpho-dynamic stability of the zone. The current configuration of the model does not allow the correct simulation of the behavior of the submerged vanes.
Year: 2005