Rib Spalling 3D Model for Soft Coal Seam Faces with Large Mining Height in Protective Seam Mining: Theoretical and Numerical Analyses

<div>The component of gravity on MCWS. (a) The component of gravity on MCWS <i>bfec.</i> (b) The component of gravity on MCWS <i>abcd</i>.</div>

Geofluids

Figure 9: Rib Spalling 3D Model for Soft Coal Seam Faces with Large Mining Height in Protective Seam Mining: Theoretical and Numerical Analyses 