Method and device for determining soil biogas slurry bearing capacity by using saturated hydraulic conductivity

The invention provides a method and a device for determining the bearing capacity of soil biogas slurry by using saturated hydraulic conductivity, and relates to the field of detection of the bearing capacity of the soil biogas slurry. The method for determining the bearing capacity of the soil biogas slurry by using the saturated hydraulic conductivity comprises the following steps: calculating an infiltration model of the biogas slurry, and calculating the soil saturated hydraulic conductivity of the biogas slurry to realize evaluation of the bearing capacity of the biogas slurry per unit land area. On the basis of screening out key factors, such as conductivity, viscosity, dry matter mass and pH value, which influence biogas slurry infiltration, a moisture motion control equation suitable for biogas slurry infiltration is corrected especially by using a biogas slurry viscosity coefficient, and a biogas slurry moisture characteristic curve theta (h) on the basis of a Van-Genuchten model is provided, so that