气候变化领域集成服务门户(CCPortal): Debris flow impact on a flexible barrier: laboratory flume experiments and force-based mechanical model validation

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DOI	10.1007/s11069-020-04489-5
	Debris flow impact on a flexible barrier: laboratory flume experiments and force-based mechanical model validation
	Brighenti R.; Spaggiari L.; Segalini A.; Savi R.; Capparelli G.
发表日期	2021
ISSN	0921030X
起始页码	735
结束页码	756
卷号	106 期号:1
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.
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
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206127
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
推荐引用方式 GB/T 7714	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],2021,106(1).
APA	Brighenti R.,Spaggiari L.,Segalini A.,Savi R.,&Capparelli G..(2021).Debris flow impact on a flexible barrier: laboratory flume experiments and force-based mechanical model validation.Natural Hazards,106(1).
MLA	Brighenti R.,et al."Debris flow impact on a flexible barrier: laboratory flume experiments and force-based mechanical model validation".Natural Hazards 106.1(2021).