Soil infiltration calculation and slope analysis method based on indoor test

The invention discloses a soil body infiltration calculation and slope analysis method based on an indoor test, which comprises the following steps of: recording a soil column wetting front change process during soil column infiltration by utilizing a one-dimensional soil column vertical infiltration test to obtain soil body invariant infiltration wetting front water content, improving a Green-Ampt infiltration model calculation method, and calculating the soil body invariant infiltration wetting front water content. According to the method, the change rule of the infiltration depth of a side slope soil body along with rainfall time is obtained by combining an improved Green-Ampt infiltration model, then saturation parameters or reduction parameters of soil in a range above a wetting front are obtained, natural parameters of soil in other ranges are kept, and finally stability analysis and calculation are carried out to obtain dynamic safety coefficient change under a continuous rainfall condition. According