A Strength Design Method of Cemented Backfill with a High Aspect Ratio

Figure 13

Typical contours of strength-stress ratio of the exposed backfill. (a) H = 50 m, φ = δ = 25°, (b) H = 50 m, φ = δ = 40°, (c) H = 40 m, φ = δ = 25°, and (d) H = 40 m, φ = δ = 40°.