Fig. 15
Cloud diagram of maximum principal stress variation in surrounding rock. (a) Excavation of 24 m, (b) Excavation of 72 m, (c) Excavation of 120 m, (d) Excavation of 196 m.
Fig. 15 | Scientific Reports
Cloud diagram of maximum principal stress variation in surrounding rock. (a) Excavation of 24 m, (b) Excavation of 72 m, (c) Excavation of 120 m, (d) Excavation of 196 m.
