DOI: 10.1007/s11069-020-04489-5
论文题名: Debris flow impact on a flexible barrier: laboratory flume experiments and force-based mechanical model validation
作者: Brighenti R. ; Spaggiari L. ; Segalini A. ; Savi R. ; Capparelli G.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 106, 期: 1 起始页码: 735
结束页码: 756
语种: 英语
中文关键词: Debris flow
; Flexible barrier
; Impact
; Laboratory flume test
英文关键词: debris flow
; deformation mechanism
; flume experiment
; hydrogeology
; instability
; laboratory method
; prediction
英文摘要: Nowadays, hydrogeological instability is a very critical issue because of its impact on population, infrastructures and economic and productive sectors. This makes essential to use advanced and reliable defense technologies, which are able to guarantee high performance and reliability. Flexible and permeable structures are ideal for stopping natural phenomena like debris flow, thanks to their high deformation capacity and their water permeability. This study presents some results obtained from laboratory tests related to the impact of a simulated debris flow against a scaled physical model of the barrier. A granular flow composed of aggregates of known size particle was released in a channel with variable inclination and known length and height. Using this experimental setup, several tests were carried out by varying the inclination of the channel and the geometry of the barrier. The results obtained were correlated with data deriving from a simplified analytical model; the comparison between the measured and calculated values made possible to assess the good prediction capability of the model, providing a simple and innovative tool to design and assess the safety of deformable protection barriers. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168926
Appears in Collections: 气候变化与战略
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作者单位: Department of Engineering & Architecture, University of Parma, Parma, Italy; Department of Informatics, Modelling, Electronic and Systematic Engineering, University of Calabria, Cosenza, Italy
Recommended Citation:
Brighenti R.,Spaggiari L.,Segalini A.,et al. Debris flow impact on a flexible barrier: laboratory flume experiments and force-based mechanical model validation[J]. Natural Hazards,2021-01-01,106(1)