Permeability of Sand-Based Cemented Backfill under Different Stress Conditions: Effects of Confining and Axial Pressures

Table 1

Orthogonal experiment design for the SBCB permeability under different stress states.

Experiment No.	Axial pressure (MPa)	Confining pressure (MPa)
S1	2.5	3.0
S2	3.5	3.0
S3	4.5	3.0
S4	5.5	3.0
S5	2.5	1.0
S6	2.5	2.0
S7	2.5	4.0