A cut slope was excavated in sand. The slope is shown in following attachment .
A cut slope was excavated in sand. The slope is shown in following attachment .
To find the properties of the sand, representative samples were taken for the soil and tested in a
triaxial apparatus. A consolidated drained triaxial test was conducted. The result is given below:
Chamber pressure = 103 kN/m2
Deviator stress at failure = 234.6 kN/m2
We know the unit weight of the sand is 16 kN/m3
.
Use the ordinary method of slices (use 7 slices) and estimate the factor of safety against sliding for
shown slip surface and comment on the calculated factor of safety.
Please note that:
1. The figure is not in scale. You may resketch it in scale and calculate the factor of safety
2. The slip surface is circular and passes through the toe of the embankment
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