Multiscale Laboratory Study and Numerical Analysis of Water-Weakening Effect on Shale

Figure 9

Block state and contour of z-displacement in the surrounding rock: (a) under 0 days of water immersion; (b) under 2 days of water immersion; (c) under 15 days of water immersion; (d) under 30 days of water immersion; (e) under 50 days of water immersion; (f) under 70 days of water immersion; (g) under 90 days of water immersion; (h) under rainfall circumstance with upper strata immersed for 90 days and lower strata immersed for 2 days.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)