Abstract
In this paper, the Discrete Element approach is employed to study the evolution with time of the impact force exerted by dry granular flows on rigid obstacles and to better understand the impact mechanism. The dry granular mass is initially positioned in front of the wall with an assigned uniform velocity and porosity and the evolution with time of the impact force is evaluated. In particular, the influence of both mass initial porosity and front inclination on the impact force evolution has been investigated.
From a design point of view, the results integrate the formula that was previously introduced by the authors for the maximum impact force, by adding information about its time evolution.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Arattano M, Franzi L (2003) On the evaluation of debris flows dynamics by means of mathematical models. Nat Hazards Earth Syst 3(6):539–544
Armanini A (1997) On the dynamic impact of debris flows. In: Recent developments on debris flows. Springer, Berlin, Heidelberg, p 208–226
Bugnion L, McArdell BW, Bartelt P, Wendeler C (2012) Measurements of hillslope debris flow impact pressure on obstacles. Landslides 9(2):179–187
Calvetti F (2008) Discrete modelling of granular materials and geotechnical problems. Eur J Environ Civ Eng 12(7–8):951–965
Calvetti F, Di Prisco CG, Vairaktaris E (2017) DEM assessment of impact forces of dry granular masses on rigid barriers. Acta Geotech 12(1):129–144
Calvetti F, di Prisco C, Redaelli I, Sganzerla A, Vairaktaris E (2019) Mechanical interpretation of dry granular masses impacting on rigid obstacles. Acta Geotech. https://doi.org/10.1007/s11440-019-00831-9
Ceccato F, Redaelli I, di Prisco C, Simonini P (2018) Impact forces of granular flows on rigid structures: comparison between discontinuous (DEM) and continuous (MPM) numerical approaches. Comput Geotech 103:201–217
Cundall PA, Strack OD (1979) A discrete numerical model for granular assemblies. Geotechnique 29(1):47–65
di Prisco C, Vecchiotti M (2010) Design charts for evaluating impact forces on dissipative granular soil cushions. J Geotech Geoenvironmental Eng 136(11):1529–1541
Hubl J, Suda J, Proske D, Kaitna R, Scheidl C (2009) Debris flow impact estimation. In: Proceedings of the 11th international symposium on water management and hydraulic engineering, vol 1. Ohrid, Macedonia, pp 137–148
Jaeger HM, Nagel SR, Behringer RP (1996) Granular solids, liquids, and gases. Rev Mod Phys 68(4):1259
Redaelli I, di Prisco C, Vescovi D (2016) A visco-elasto-plastic model for granular materials under simple shear conditions. Int J Numer Anal Meth Geomech 40(1):80–104
Scotton P, Deganutti A (1997) Phreatic line and dynamic impact in laboratory debris flow experiments. In: Debris-flow hazard mitigation: mechanics, prediction and assessment. ASCE, p 777–786
Acknowledgements
This work has been supported by Fondazione Cariplo, grant n° 2016-0769
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Switzerland AG
About this paper
Cite this paper
Redaelli, I., di Prisco, C., Calvetti, F. (2020). Temporal Evolution of the Force Exerted by Dry Granular Masses Impacting on Rigid Sheltering Structures. In: Calvetti, F., Cotecchia, F., Galli, A., Jommi, C. (eds) Geotechnical Research for Land Protection and Development. CNRIG 2019. Lecture Notes in Civil Engineering , vol 40. Springer, Cham. https://doi.org/10.1007/978-3-030-21359-6_2
Download citation
DOI: https://doi.org/10.1007/978-3-030-21359-6_2
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-21358-9
Online ISBN: 978-3-030-21359-6
eBook Packages: EngineeringEngineering (R0)