Abstract
A debris flow is usually represented by a mixture of solid particles of various sizes and water, flowing along a laterally confined inclined channel-shaped region; debris flow protection barriers are the focus of this research. In particular the paper presents a simplified structural model of cable-like retention barriers based upon the equation of equilibrium of wires under large displacements condition. Inputting the debris flow features, the model returns restraining forces and cable stresses that can then be used for an appropriate barrier design. Some parametrical tests were performed to analyze how the impact velocity and the mass density of the debris influence the maximum tensile force and the acting load in the cables: also the energy associated with debris flow is assessed. Results are here presented and discussed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Brighenti R, Ferrero AM, Segalini A (2013) Debris flow hazard mitigation: a simplified analytical model for the design of flexible barriers. Comput Geotech 54:1–15, doi: 10.1016/j.compgeo.2013.05.010
Canelli L, Ferrero AM, Migliazza M, Segalini A (2013) Debris flow risk mitigation by the means of rigid and flexible barriers – experimental tests and impact analysis. Nat Hazards Earth Syst Sci 12:1–7, http://www.nat-hazards-earth-syst-sci.net/12/1/2012/. doi: 10.5194/nhess-12-1-2012
Gen M, Cheng R (1996) Genetic algorithms and engineering design, 1edn. Wiley, New York, p 40
Goldberg DE (1989) Genetic algorithms in search, optimization, and machine learning. Addison-Wesley Publishing Company Inc., Massachusetts, MA, pp 1–56
Kwan JSH, Cheung RWM (2012) Suggestion on design approaches for flexible debris-resisting barriers. Standard and testing division. Discussion note DN1/2012. The Government of Hong Kong Special Administrative Region.
Sun HW, Law RPH (2012) A preliminary study on impact of landslide debris on flexible barriers. Geotechnical Engineering Office. Standard and testing division. Technical Note 1/2012. The Government of Hong Kong Special Administrative Region
Takahashi T (1983) Debris flow and debris flow deposition. In: Shahinpoor M (ed) Advances in the mechanics and flow of granular materials, vol. II. Trans. Tech. Publ., pp 57–77
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer International Publishing Switzerland
About this paper
Cite this paper
Segalini, A., Brighenti, R., Umili, G. (2014). A Simplified Analytical Model for the Design of Flexible Barriers Against Debris Flows. In: Sassa, K., Canuti, P., Yin, Y. (eds) Landslide Science for a Safer Geoenvironment. Springer, Cham. https://doi.org/10.1007/978-3-319-05050-8_112
Download citation
DOI: https://doi.org/10.1007/978-3-319-05050-8_112
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-05049-2
Online ISBN: 978-3-319-05050-8
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)