Research Article

A New Mining Scheme for Hanging-Wall Ore-Body during the Transition from Open Pit to Underground Mining: A Numerical Study

Table 3

Physical parameters of the ore-body.

ParameterValue

Density4150 kg/m3
Young’s modulus25 Gpa
Poisson’s ratio0.27
Joint cohesion (before/after failure)0.18 MPa/0 MPa
Joint tensile strength (before/after failure)0.1 MPa/0 MPa
Joint friction angle (before/after failure)32°/25°