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http://dx.doi.org/10.14481/jkges.2014.15.12.71

Development of Horizontal Displacement Sensor for Rainfall-simulated Centrifugal Model Test  

Lee, Chungwon (Institute for Advanced Construction Materials, Kangwon National University)
Park, Sungyong (Department of Regional Infrastructure Engineering, Kangwon National University)
Kim, Yongseong (Department of Regional Infrastructure Engineering, Kangwon National University)
Publication Information
Journal of the Korean GEO-environmental Society / v.15, no.12, 2014 , pp. 71-77 More about this Journal
Abstract
Heavy rainfall induces many disasters including slope failure and infrastructure collapse. In this point of view, rainfall-simulated centrifugal model test can be a reasonable tool to evaluate the stability of geotechnical structure. In order to obtain the displacements of a model in centrifugal model test, in general, LVDT and laser displacement sensor are used. However, when the rainfall is simulated, the LVDT has the problem of excessive infiltration into the model ground, and the laser displacement sensor provides the measuring result with inaccuracy due to the dispersion of the laser radiation. Hence, in this study, horizontal displacement sensor for rainfall-simulated centrifugal model test was developed. This sensor produced with a thin elastic steel plate and gave the accurate relationship between the displacement and the strain.
Keywords
Rainfall; Centrifugal model test; Thin elastic steel plate; Strain gauge; Horizontal displacement sensor;
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Times Cited By KSCI : 1  (Citation Analysis)
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