Experimental Study on Deformation Law of Rectangular Roadway in Horizontal Layered Rock Mass

Table 2

Material properties parameters of the elementary slabs.

Rock types	Dimensions of the slabs (cm)	Ratio of water to gypsum	Unit weigh (kN/m^3)	Compressive strength (MPa)	Tensile strength (MPa)	Elastic modulus (GPa)	Poisson’s ratio
Diabase	40 × 40 × 2	0.8 : 1	10.32	9.05	1.01	3.22	0.11
Green mudstone	40 × 40 × 2	1 : 1	9.45	4.53	0.53	2.13	0.31
Coal seam	40 × 40 × 1	1.2 : 1	7.33	2.01	0.24	0.69	0.39