A Geomechanical Model Test on the Construction Stability and Overload Failure Process of an X-Type Cross Cavern Group

Figure 10

The time history of displacements during the excavation: (a) main roadway in section I; (b) main roadway in section I; (c) drift in section II; (d) drift in section II.

(a)

(b)

(c)

(d)