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http://dx.doi.org/10.14481/jkges.2022.23.2.25

Numerical Analysis on Pore Water Pressure Reduction at Embankment Foundation of Fill Dam and Levee by Relief Well  

Chang, Jaehoon (Korea Engineering Research Co., Ltd.)
Yoo, Chanho (Asin Civil Engineering & Technology Co., Ltd.)
Baek, Seungcheol (Department of Civil Engineering, Andong National University)
Publication Information
Journal of the Korean GEO-environmental Society / v.23, no.2, 2022 , pp. 25-36 More about this Journal
Abstract
In this study, seepage control effect of relief well was evaluated quantitatively on embankment of small fill dam and levee. Seepage analysis of dam and levee were carried out according to the permeability of fill material and foundation and to analyze behaviour characteristics of seepage. The up-lift pressure at toe of embankment was analyzed which is generated by seepage according to relief well installation condition. The relief well could reduce pore water pressure which is to cause piping or up-lift pressure at foundation ground of embankment and it does not be influenced on geometric condition such as dam height and slope incline. In case of relative low permeable ground, the pore water pressure reduction effect of relief well was decreased compare with high permeable ground but it shows pore water pressure reduction effect compare with no relief well condition. The reduction effect of relief well shows relative gap according to diameter and penetration length of relief well and the installation length of relief well is the most effective factor for seepage control.
Keywords
Pore water pressure; Relief well; Embankment; Seepage control; Up-lift pressure;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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