A Statistical Damage Constitutive Model for Geomaterials under Plane-Strain Biaxial Stress State

Figure 4

Coal blocks and specimens. (a) Coal blocks which are taken from the in situ working face; (b) coal specimens (70.7 × 70.7 × 70.7 mm³ in size); (c) synthetic specimens (100 × 100 × 100 mm³ in size); (d) mould using for the preparation of specimens.

(a)

(b)

(c)

(d)