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Estimation of Continuous Infiltration Process by Unsaturated Permeability  

Han, Heui-Soo (School of Civil and Environmental Engrg., Kumoh National Institute of Technology)
Lee, Jung-Sik (School of Civil and Environmental Engrg., Kumoh National Institute of Technology)
Jang, Jin-Uk (Department of Civil Engrg., Graduate School, Kumoh National Institute of Technology)
Yang, Nam-Young (Department of Civil Engrg., Graduate School, Kumoh National Institute of Technology)
Publication Information
The Journal of Engineering Geology / v.20, no.2, 2010 , pp. 137-146 More about this Journal
Abstract
To estimate the accumulated infiltration, Horton's and Green-Ampt's equations are usually applied. Because the real infiltration is penetrated into the soil continuously, to cover the problems of the conventional equations derived from the discontinuous infiltration system, new infiltration equation is derived from the concepts of continuous infiltration system. Furthermore, infiltration tests were done to compare the results from the conventional Horton's and Green-Ampt's equations and newly derived equation. Unsaturated permeability is the function of water content ratio or saturation degree, which affects directly to the infiltration capacity and accumulated infiltration. Therefore, the variation term of unsaturated permeability is inserted into the new equation to estimate the proper infiltration capacity and accumulated infiltration. It will make the more accurate analysis for the safety of structure and the behavior of groundwater.
Keywords
Infiltration capacity; Accumulated infiltration; Unsaturated permeability; Saturation degree; Water content ratio;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 사공명, 유재호, 이성진, 2009, 강우로 인한 조림토사면에서의 토층두께변화에 따른 사면의 활동 분석 : 실내모형실험, 한국지반공학회논문집, 25(4), 91-103.   과학기술학회마을
2 이재수, 2006, 수문학, 구미서관, 201-226
3 조성은, 이승래, 2001, 불포화 토사사면의 얕은파괴 해석에 대한 비교 연구, 한국지반공학회논문집, 7(4), 133-143.
4 한국지반공학회, 2006, KS F 2312.
5 홍원표, 최승호, 한중근, 황인철, 1996, 강우시 사면안정해석법에 관한 연구, 대한토목학회 학술발표회 논문집(III), 195-198.
6 Brook, R.H., and Corey, A.T., 1964, Hydraulic Properties of Porous Media, Colorado State University Hydrology Papers, 3, 1-27.
7 Chen, L., and Young, M.H., 2006, Green-Ampt infiltration model for sloping surfaces, Water Resources Research, 42(7), 1-9.
8 Irmay, S., 1954, On the Hydraulic Conductivity of Unsaturated Soils, Trans Am. Geophys. Union, 35(3), 463-467.   DOI
9 Pradel, D., and Raad, G., 1993, Effect of Permeability on Surficial Stability of Homogeneous Slopes, Journal of Geotechnical Engineering, 119(2), 315-332.   DOI