The aim of this paper is to analyse debris flow impact against rigid and undrained barrier in order to propose a new formulation for the estimation of acting force after the flow impact to safe design protection structures. For this reason, this work concentrates on the flow impact, by performing a series of small scale tests in a specifically created flume. Flow characteristics (flow height and velocity) and applied loads (dynamic and static) on barrier were measured using four ultrasonic devices, four load cells and a contact surface pressure gauge. The results obtained were compared with main existing models and a new equation is proposed. Furthermore, a brief review of the small scale theory was provided to analyse the scale effects that can affect the results.
CITATION STYLE
Vagnon, F., & Segalini, A. (2016). Debris flow impact estimation on a rigid barrier. Natural Hazards and Earth System Sciences, 16(7), 1691–1697. https://doi.org/10.5194/nhess-16-1691-2016
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