Experimental Study on Overlying Strata Movement Characteristics and Distributed Optical Fiber Characterization of Stope

Figure 7

(a) Initial breaking of key stratum KS1

(b) Initial breaking of key stratum KS2

(c) Initial weighting of working face

(d) First periodic weighting

(e) Fourth periodic weighting

(f) KS4 initial break

(g) KS5 initial break

(h) KS6 initial break