Table 2: Parameters of numerical simulation model for case study.

Parameters	Vertical stress (MPa)	Horizontal stress (MPa)		Young’s modulus (GPa)				Size (m×m×m)
Values	σv	σh	σH	Others	Layer 1	Layer 2	Layer 3	L×H×W
	24	10	15	15.5	31	19.5	31	100×40×10