sponsored by The National Natural Science Foundation of China(Grant Nos.51939004 and 51279090);The National Key Research and Development Program of China(2017YFC1501100);the Hubei Key Laboratory of Construction and Management in Hydropower Engineering(2020KSD11).
Rainfall infiltration on a soil slope is usually an unsaturated seepage process that can be described by a water-air two-phase flow model.The effect of pore air pressure on rainfall infiltration has been widely recogn...