Experimental Study on Shear Characteristics of Coal Samples in Different Water-Bearing States

Figure 5

Relationship between shear strength and moisture contents: (a) W0-2-1 coal sample; (b) W1-2-1 coal sample; (c) W2-2-1 coal sample; (d) W3-2-1 coal sample.

(a)

(b)

(c)

(d)