4Horton R E.An approach towards a physical interpretation of infiltration capacity[J].Soil Science Society of America Proceedings,1940,5:399-417.
5Gasmo J M,Rahardjo H,Leong E C.Infiltration effects on stability of a residual soil slope[J].Computers and Geotechnics,2000,26:145-165.
6Van Genuchten M Th.A closed-form equation for predicting the hydraulic conductivity of unsaturated soils[J].Soil Science Society of American Journal,1980,44(5):892-898.