Fig. 8

Scheme 14 distribution of failure elements of flexible formwork concrete wall and longitudinal displacement diagram of roadway surrounding rock. (a) Mining 180 m damage unit distribution, (b) Mining 180 m displacement diagram, (c) Mining 220 m damage unit distribution, (d) Mining 220 m displacement diagram, (e) Mining 260 m damage unit distribution, (f) Mining 260 m displacement diagram.