Monitoring and Analysis of Stress Distribution of the Interaction between Rock and Backfill and the Influence of Geometric Features of the Backfill Boundary

Figure 14

The shear stress of backfill and surrounding rock on the boundary part: (a) the shear stress of the linear boundary model; (b) the shear stress of the single-step boundary model; (c) the shear stress of the multistep boundary model.

(a)

(b)

(c)