Experimental Study on Shear Failure Characteristics of Jointed Rock Mass Based on Direct Shear Tests and Digital Image Correction Techniques

Figure 18

Shear strain evolution process of joint specimens (90°): (a) 10% peak stress, (b) 30% peak stress, (c) 50% peak stress, (d) 70% peak stress, (e) 90% peak stress, and (f) 100% peak stress.

(a)

(b)

(c)

(d)

(e)

(f)