학술논문

Debris flow risk mitigation by the means of rigid and flexible barriers – experimental tests and impact analysis
Document Type
article
Source
Natural Hazards and Earth System Sciences, Vol 12, Iss 5, Pp 1693-1699 (2012)
Subject
Environmental technology. Sanitary engineering
TD1-1066
Geography. Anthropology. Recreation
Environmental sciences
GE1-350
Geology
QE1-996.5
Language
English
ISSN
1561-8633
1684-9981
Abstract
The impact of a debris flow on a structure can have disastrous effects because of the enormous destructive potential of this type of phenomenon. Although the introduction of risk mitigation structures such as the Sabo Dam, the filter dam and more recently flexible barriers is usual, there are very few methods that are universally recognized for the safe design of such structures. This study presents the results of experimental tests, conducted with the use of a specifically created flume, in order to obtain detailed knowledge of the mechanical aspects, and to analyze the dynamics of the impact of a debris flow on different types of structures. The analyses of the tests, together with the calculation of the thrust caused by the flow, have made it possible to analyze the dynamics of the impact, which has shown differing effects, on the basis of the type of barrier that has been installed.