Experimental Study on Lateral Permeability Evolution of Sandstone under Seepage-Damage Coupling

Figure 2

Diagram before and after the horizontal penetration test sample. (a) Pre-experiment (rock samples). (b) Pre-experiment (saturation device). (c) Pre-experiment (steel wire mesh). (d) Pre-experiment. (e) During experiment. (f) After completion of experiment.

(a)

(b)

(c)

(d)

(e)

(f)