Model Test of the Reinforcement of Surface Soil by Plant Roots under the Influence of Precipitation

Table 1

Physical and mechanical parameters of the soil.

Liquid limit (%)	Plastic limit (%)	Plasticity index	Maximum dry density (g·cm^−3)	Optimum moisture content (%)	Proportion
34.1	22.2	11.9	1.92	11.2	2.66