Destress Blasting of Rock Mass: Multiscale Modelling and Simulation

Table 3

Geological data of the considered area.

Type of rock	Thickness (m)	Compressive strength (MPa)	Tensile strength (MPa)	Shear strength (MPa)	Young’s modulus (MPa)	Poisson’s ratio
Glacial deposits	336.0	—	—	—	75.0	0.30
Motley sandstone	221.0	11.51	0.13	2.07	5000.0	0.15
Clayey sandstone	12.0	1.73	0.002	0.21	3375.0	0.18
Main anhydrite	137.0	19.53	0.24	3.12	1365.0	0.25
Dolomite II	11.0	63.96	0.89	7.64	14575.0	0.26
Dolomite I	9.0	149.60	2.15	18.44	24050.0	0.25
Copper ore	3.0	116.4	6.90	19.80	8200.0	0.23
Grey sandstone	10.0	25.10	1.10	4.80	4700.0	0.16
Quartz sandstone	290.0	17.90	0.90	3.40	2550.0	0.13