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Determination of the Unsaturated Hydraulic Conductivity Function  

황창수 (미국 콜로라도 주립대학교 토목공학과)
김태형 (한국해양대학교 토목환경시스템공학부)
Publication Information
Journal of the Korean Geotechnical Society / v.20, no.3, 2004 , pp. 47-51 More about this Journal
Abstract
An unsaturated hydraulic conductivity function and a soil-water characteristic curve are the essential constitutive factors in studying unsaturated soils. In order to obtain the unsaturated hydraulic conductivity function, prediction functions, which are based on the soil-water characteristic curve, have been used because it is difficult to measure the unsaturated hydraulic conductivity function directly. In this study, a parameter estimation method using the flow pump technique is introduced to determine the unsaturated hydraulic conductivity function. This method provides more accurate and independent solution than previous methods for the determination of the unsaturated hydraulic conductivity function which is not subordinate to the soil-water characteristic curve or prediction models.
Keywords
Flow pump technique; Inverse problem solution technique; Soil-water characteristic curve; Unsaturated hydraulic conductivity function;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Permeability determination for unsaturated soils /
[ Abu-Hejleh,A.N.;Znicari,D.;Illangasekare,T.H.;Houston,S.(ed.);Wray,W.(ed.) ] / Unsaturated Soils, GSP No.39
2 On the hydraulic conductivity of unsaturated soils /
[ Irmay,S. ] / Trans. Amer. Geophys. Union
3 A two-stage procedure for determining unsaturated hydraulic characteristics using a syringe pump and outflow observations /
[ Wilidenschild,D.;Jensen,K.H.;Hollenbeck,K.J.;Illangasekare,T.H.;Znicari,D.;Sonnenborg,T.;Butts,M.B. ] / Soil Science Society of America Journal   DOI   ScienceOn
4 The calibration of the Richards flow equation for a draining column by parnameter identitication /
[ Zachman,D.W.;Duchateau,P.C.;Klute,A. ] / Soil Science Society of America Journal   DOI
5 Soil geometry and soil water equilibria /
[ Clulds,E.C.;Collis-George,N. ] / Disc
6 A closed form equation for predicting the hydrastic conductively of unsaturated soils /
[ van Genuchten;M.Th ] / SSSA Journal   DOI
7 Measurement of capillary pressure in small core samples /
[ Hassler,G.L.;Brunner,E. ] / Petroleum Technolohgy, Technical Paper
8 피스톤 펌프 기법을 이용한 흙수분 특성곡선 측정방법 /
[ 황창수;김태형 ] / 한국지반공학회지   과학기술학회마을
9 /
[ GBO-SLOPE International Ltd ] / SEEP/W.
10 In-situ determination of soil hydraulic properties during leaching /
[ Childs,E.C.;Colls-George,N. ] / Soil Science Society of America Journal   DOI   ScienceOn
11 A simplified method for computing oil recovery by gas or water drive /
[ Welge,H.J. ] / Transactions AIME
12 Hydroalic properties of porous media /
[ Brooks,R.H.;Corey,T. ] / Hydrology Papers
13 Capillary conduction of liquids in porous media /
[ Richards,L.A. ] / Journal of Applied Physics