Table 2 Physical and mechanical parameters of the grouted porous media.

From: Porous media grouting diffusion mechanism based on tailings slurry phase change characteristics

Serial Number

Material Category

Dry density

(g/cm3)

Porosity

Permeability coefficient(×10− 4cm/s)

1

Tailings fine sand

1.62

0.631

7.75

2

Tailings fine sand plus tailings powder sand

1.68

0.604

6.15

3

Tailing powder sand plus tail powder soil

1.72

0.571

3.19