Fig. 3
From: Study on the fracture characteristics of overlying rock strata under different mining face widths

Typical results of two-dimensional physical similarity simulation: (A) trapezoidal plane structure I; (b) trapezoidal plane structure II.
From: Study on the fracture characteristics of overlying rock strata under different mining face widths

Typical results of two-dimensional physical similarity simulation: (A) trapezoidal plane structure I; (b) trapezoidal plane structure II.