In all cases the strength of rocks increases with the distance from the fault, regardless of the fault wall
in which the measurements were performed.
Specifically, when a fault occurs, the rock masses on two fault walls
may slip along the fault plane, which can instantaneously release a large amount of elastic strain energy, thereby inducing serious dynamic disasters (i.e., rock bursts, shock bumps) (Jiang et al., 2018; Jiang et al., 2017).
Hence, in conclusion, under this test condition, the movement of the strata of the two fault walls
had a remarkable difference.
Decrease of movement velocity of the fault walls
with decrease of the points' distances from the fault line has been anticipated.
A survey of principal active faults in W part of Slovenia adopted movement monitoring between separate fault walls
on some specific structural outcrops.