Engineering

"Given information:

Soil type: Homogeneous silty sand

Slope inclination: Not given

Soil profile: Not given

Acceleration: 0.2 g

To determine the factor of safety against seismic slope failure using the ordinary method of slices, the following steps can be taken:

Determine the slope inclination: The slope inclination is not given, so it must be assumed. For this example, let's assume a slope inclination of 1H:1V (45 degrees).

Determine the soil profile: The soil profile is not given, but we know that the embankment is built on soft clay. Let's assume a soil profile as follows:

Layer 1: Homogeneous silty sand, thickness = 10 m

Layer 2: Soft clay, thickness = 10 m

Calculate the effective unit weight of the soil: The effective unit weight of the soil can be calculated as follows:

For silty sand: