Research Article

Mechanics Parameter Optimization and Evaluation of Curtain Grouting Material in Deep, Water-Rich Karst Tunnels

Table 1

Physical and mechanical parameters of the surrounding rock.

Density (kg/m3)Modulus of elasticity (Gpa)Poisson’s ratio (v)AreaFriction angleCohesive force (Mpa)Permeability coefficient
(m/h)

250060.25500.7