Predicting and Investigating the Permeability Coefficient of Soil with Aided Single Machine Learning Algorithm

Table 2

Pearson’s rank correlation coefficient.

rs	Magnitude	Relation
0 ÷ 0.19	Very weak	Clay content vs density, water content vs density, liquid limit vs density, plastic limit vs density, plasticity index vs density, void ratio vs density, permeability coefficient vs density
0.2 ÷ 0.39	Weak	None
0.4 ÷ 0.59	Moderate	Permeability coefficient vs clay content
0.6 ÷ 0.79	Strong	Clay content vs water content, clay content vs plastic limit, clay content vs void ratio, liquid limit vs permeability coefficient, plastic limit vs permeability coefficient, plasticity index vs permeability coefficient, density vs void ratio, density vs permeability coefficient
0.8 ÷ 1.0	Very strong	Clay content vs liquid limit, clay content vs plasticity index, liquid limit vs water content, water content vs plastic limit, water content vs plasticity index, water content vs void ratio, water content vs permeability coefficient, liquid limit vs plastic limit, liquid limit vs plasticity index, liquid limit vs void ratio, plastic limit vs plasticity index, plastic limit vs void ratio, void ratio vs permeability coefficient