The Effect of upper Soil Bulk Density on Water Infiltration in Simulate Finger Flow of Layered Soil
Abstract：In order to reveal the influence law of upper soil bulk density to layered soil of simulate the finger flow, though simulate the finger flow in the lab and regression analysis method in this experiment. The improved Kostiakov and Philip model, which simulate the layered soils of imitate the finger flow, are established and verified through the soil bulk density ＂γ＂ as the model parameter. The results show that. when the infiltration time is same, accumulation infiltration amount decreases with the increase of the upper soil bulk density; Kostiakov and Philip models are suitable for simulating layered soil of engender finger flow, which correlation coefficient is above 0.99;the calculation accuracy is very high of the two improved models which is established. The efficiency coefficients are 97.7% and 97.6% respectively. Compare but talks, Philip model has certain theoretical basis, and can be used as an effective model of infiltration for layered soil of engender finger flow.
Keywords：layered structure soilupper soil bulk densitysimulation finger flowinfiltration model
Publication Date：2011-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)