... 2c/γ√Ka. That may be possible in the soil for a short while, in undrained conditions, with negativeArnold Verruijt, Soil Mechanics : 33. RANKINE 1 87 .......................................................................................................................................................................................................................................................................................................................... ... Ka< K < Kp. (33 .7) If φ = 30◦(this is a common value for sand, on the small side), it follows thatc = 0 and φ = 30◦:13< K < 3. (33.8)Arnold Verruijt, Soil Mechanics : 33. RANKINE ... pushed in horizontal di-rection into the soil, see Figure 33.6. Again theMohr circle has been shown in the figure as well,with the pole in this case being located in the left-most point of the...