Experimental Study on the Creep Characteristics of Cemented Backfill in a Goaf under Water Pressure

Figure 18

Failure mode of backfill samples under different water pressures. (a) 0 MPa water pressure. (b) 0.5 MPa water pressure. (c) 1.0 MPa water pressure. (d) 1.5 MPa water pressure. (e) 2.0 MPa water pressure.

(a)

(b)

(c)

(d)

(e)