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Passive Earth Pressure problem example 2

For the data given in Example 11.15, determine the reduction in passive earth pressure for a curved surface of failure if 8 = 30°. Solution For a plane surface of failure P from Eq. (11.76) is It is clear from the above calculations, that the soil resistance under a passive state gives highly erroneous values for  Full Article…


Passive Earth Pressure problem example 1

A gravity retaining wall is 10 ft high with sand backfill. The backface of the wall is vertical. Given 8= 20°, and 0 = 40°, determine the total passive thrust using Eq. (11.76) and Fig. 11.24 for a plane failure. What is the passive thrust for a curved surface of failure? Assume y= 18.5 kN/m3. SOLUTION