Effect of rainfall intensity on infiltration into partly saturated slopes

This paper describes the development of a
model to analyse the rate of infiltration and run-off
experienced by a partly saturated soil slope during
rainfall. The paper first reviews some of the most
popular infiltration models used in geotechnical analysis,
and highlights some of the problems associated
with their application. One particular model, the
Horton Equation is extended to include rainfall
intensity directly in its formulation. The new model
is shown to predict infiltration responses, which agree
with field measurements. In the final section the
influence of the rainfall intensity and pattern of rainfall
(variation of rainfall intensity) on the infiltration
response of a soil is investigated using the new model.