Direct Shear Test on Coarse Gap-Graded Fill: Plate Opening Size and Its Effect on Measured Shear Strength

Figure 14

Variation of shear stress with horizontal displacement obtained by direct shear tests on G3 with a plate opening of (a) 5.0 mm, (b) 10.0 mm, (c) 15.0 mm, (d) 20.0 mm, (e) 25.0 mm, and (f) 30.0 mm. (g) Failure envelopes for G3 under direct shear with different plate openings.

(a)

(b)

(c)

(d)

(e)

(f)

(g)