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

Figure 11

Comparison of the proposed method and previous methods: (a) φ = δ = 25°; (b) φ = δ = 30°; (c) φ = δ = 35°; and (d) φ = δ = 40°.

(a)

(b)

(c)

(d)