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.

Debris flow impact estimation on a rigid barrier / Vagnon, Federico; Segalini, Andrea. - In: NATURAL HAZARDS AND EARTH SYSTEM SCIENCES. - ISSN 1561-8633. - 16:7(2016), pp. 1691-1697. [10.5194/nhess-16-1691-2016]

Debris flow impact estimation on a rigid barrier

SEGALINI, Andrea
2016

Abstract

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.
Debris flow impact estimation on a rigid barrier / Vagnon, Federico; Segalini, Andrea. - In: NATURAL HAZARDS AND EARTH SYSTEM SCIENCES. - ISSN 1561-8633. - 16:7(2016), pp. 1691-1697. [10.5194/nhess-16-1691-2016]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2813801
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