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

Figure 13

The stress vectors of three models: (a∼c) the stress vectors development of the linear boundary model; (d∼f) the stress vectors development of the single-step boundary model; (g∼i) the stress vectors development of the multistep boundary model.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)