Research Article

Analytical Assessment of Internal Stress in Cemented Paste Backfill

Figure 2

Force analysis in the unsaturated zone of CPB mass (Hwt: local water table location, h: thickness of CPB relative to top surface, H: filling height, LA: longitudinal length of CPB mass, LB: transverse length of CPB mass, dh: thickness of the representative CPB layer, Fh: horizontal force, : vertical force, Fc: interface adhesion, Fs: interface friction force, and GCPB: self-weight load of CPB).