Back Analysis of Geomechanical Parameters of Rock Masses Based on Seepage-Stress Coupled Analysis

Table 2

Physicomechanical parameters of shotcrete and grouting anchor layer.

Area	Gravity; (KN/m^3)	Modulus of elasticity (GPa)	Poisson ratio	Cohesion (MPa)	Internal friction angle (°)
C25 shotcrete layer	22	24	0.23	1.6	34
Grouting anchor layer	23	22	0.25	2.0	36