TY - GEN
T1 - Flood control of the Vara River (north-western italy)
AU - Stocchino, A.
AU - Siviglia, A.
AU - Colombini, M.
PY - 2006
Y1 - 2006
N2 - Aspects related to the sediment transport through the river system and sediment management are still rarely addressed in the design of flood control and river management programmes in Italy. Recently, however, there has been increasing consideration of regional sediment issues, sediment continuity and channel morphodynamic as an integral part of flood protection schemes and future river management. An example is represented by the research project presented in this paper, regarding the mountain basin of the Vara River, in the north-western Italy. The main purpose of the present work is to study the influence of a composite storage tank, designed for flood control, on the sediment transport processes, so that it would be possible to evaluate the impact of the latter on the surrounding lands. We perform a physical model characterized by erodible bed, considering different configurations of the storage tank and different hydrological scenarios with return period ranging from 5 to 200 years. The physical model has been designed to reproduce a fluvial reach 1 km long in geometric scale equal to 1:62.5 and Froude similitude, so to conserve inertial and gravitational effects.We have fed the model with unsteady water and sediment discharge and the bottom topography of the river has been left free to evolve. We also use a mixture of sediments characterized by various diameters to evaluate the selective transport of the different granulometric fraction.
AB - Aspects related to the sediment transport through the river system and sediment management are still rarely addressed in the design of flood control and river management programmes in Italy. Recently, however, there has been increasing consideration of regional sediment issues, sediment continuity and channel morphodynamic as an integral part of flood protection schemes and future river management. An example is represented by the research project presented in this paper, regarding the mountain basin of the Vara River, in the north-western Italy. The main purpose of the present work is to study the influence of a composite storage tank, designed for flood control, on the sediment transport processes, so that it would be possible to evaluate the impact of the latter on the surrounding lands. We perform a physical model characterized by erodible bed, considering different configurations of the storage tank and different hydrological scenarios with return period ranging from 5 to 200 years. The physical model has been designed to reproduce a fluvial reach 1 km long in geometric scale equal to 1:62.5 and Froude similitude, so to conserve inertial and gravitational effects.We have fed the model with unsteady water and sediment discharge and the bottom topography of the river has been left free to evolve. We also use a mixture of sediments characterized by various diameters to evaluate the selective transport of the different granulometric fraction.
UR - http://www.scopus.com/inward/record.url?scp=84857009349&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:84857009349
SN - 0415393752
SN - 9780415393751
T3 - River, Coastal and Estuarine Morphodynamics: RCEM 2005 - Proceedings of the 4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics
SP - 331
EP - 340
BT - River, Coastal and Estuarine Morphodynamics
T2 - 4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2005
Y2 - 4 October 2005 through 7 October 2005
ER -