Experimental Analysis and Micromechanical Modelling of Dry Granular Flow and Impacts in Laboratory Flume Tests |
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Authors: | R Valentino G Barla L Montrasio |
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Institution: | (1) Department of Civil, Environmental, Territorial Engineering and Architecture, Università degli Studi di Parma, Parma, Italy;(2) Department of Structural and Geotechnical Engineering, Politecnico di Torino, Turin, Italy |
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Abstract: | Summary. The paper presents the results of a numerical analysis, carried out by using the Discrete Element Method (DEM) and aimed at
reproducing a series of tests on a small-scale laboratory model of a slope. Particular attention is devoted to the validation
of DEM when used for the prediction of the run-out distance and of the impact force on obstacles. The soil used for the small-scale
model is a mono-granular medium sand, which revealed to be particularly suitable to simulate flows like debris or rock avalanches.
The experimental set-up comprises a flume equipped with a system of differently sized instrumented obstacles. The numerical
model of the granular flow has been calibrated on the basis of the displacement measurements, obtained through a photogrammetric
technique.
Author’s address: Roberto Valentino, Department of Civil, Environmental, Territorial Engineering and Architecture, Università
degli Studi di Parma, Parma, Italy |
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Keywords: | : Micromechanics DEM granular flow impact experimental tests |
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