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A Study on the Seepage Behavior of Embankment with Weak Zone using Numerical Analysis and Model Test
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 Title & Authors
A Study on the Seepage Behavior of Embankment with Weak Zone using Numerical Analysis and Model Test
Park, Mincheol; Im, Eunsang; Lee, Seokyoung; Han, Heuisoo;
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 Abstract
This research is focused on the seepage behavior of embankment which had the weak zone with big permeability. The distributed TDR (Time Domain Reflectometer) and point sensors such as settlement gauge, pore water pressuremeter, vertical total stressmeter, and FDR (Frequency Domain Reflectometer) sensor were used to measure the seepage characteristics and embankment behavior. Also, the measured data were compared to the data of 2-D and 3-D numerical analysis. The dimension of model embankment was 7 m length, 5 m width and 1.5 m height, which is composed of fine-grained sands and the water level of embankment was 1.3 m height. The seepage behavior of measuring and numerical analysis were very similar, it means that the proper sensing system can monitor the real-time safety of embankment. The result by 2-D and 3-D numerical analysis showed similar saturation processing, however in case of weak zone, the phreatic lines of 2-D showed faster movement than that of 3-D analysis, and finally they converged.
 Keywords
Model embankment;Weak zone;Seepage;Phreatic line;Distributed TDR;
 Language
Korean
 Cited by
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