Fig. 1. Properties of logarithmic spiral arc
Fig. 2. Passive failure surface
Fig. 3. Rankine earth pressure for the case of inclined backfill surface
Fig. 4. Passive state for the case of inclined backfill surface
Fig. 5. Stability of soil mass ABCC'
Fig. 6. Determination of lp1
Fig. 7. Comparison of coefficients of passive earth pressure
Table 1. Comparison of Kp ( α = 90° )
Table 2. Comparison of Kp ( i = 0° )
Table 3. Comparison of Kp (i = 0°, α = 90° )
Table 4. Comparison of Kp(P) with the other theoretical results (i = 0°, α = 90° )
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