Study on soil infiltration law of unsaturated soil slope

摘要

Rainfall infiltration is the main evoked factor of unsaturated soil slope failure,by using the MIDAS software,the paper systematically analyses the parameters which can influence seepage field (Including rainfall intensity,rainfall duration,permeability coefficient and underground water level),summed up the soil infiltration law of unsaturated soil slope.In addition,by analyzing it finds that soil saturation is not just related to the permeability coefficient or rainfall intensity unilaterally,but also has the close relation with their proportion.Through this we obtain a method about the ratio of the permeability coefficient and rainfall intensity.