Analisi sperimentale e misura diretta dello sforzo taglianti di fondo di correnti in canale a pelo libero

The manuscript presents the study that led to the design, implementation and testing of an innovative system for the direct measurement, in the laboratory, of the bed shear stress of flows in open channel. The related analysis has been intended at exploring the possibility of providing a new tool to survey research, especially in the context of the erosion of the bed during the events known as debris flow. In facts, the shear stress between the debris flow and the ground over which it propagates, is now recognized as one of the key parrrameters that affect the most dynamic local and global motion (Iverson 2010). However, experimental resarch has not sufficiently investigated this aspect. The electromechanical system presented in this work earned, therefore, the purpose to make a contribution to this survey... [edited by Author]