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02000CE208052002

much time will take the clay layer to reach 90% consolidation? What is the time
required for the clay layer to reach 50% consolidation if the clay has double
drainage? (represent the time in years)

Define 1) primary consolidation settlement ii) secondary consolidation
settlement iii) Degree of consolidation.

Define 1) Relative compaction 11) zero air void line 111) optimum moisture
content

A cohesive soil yields a MDD of 1.8g/cc at an OMC of 16% during standard
proctor test. If the value of G is 2.65, What is the degree of saturation? What is
the maximum dry density to which it can be further compacted to?

Explain the friction circle method of analysis of stability of earth slopes

What is coefficient of consolidation of soil? How will you evaluate it with
square root time method?

A cutting is to be made in clay for which the cohesion is 35kN/m? and ൭-0.
The density of soil is 20kN/m*. Find the maximum depth for a cutting of side
slope 1.5 to 1, if the factor of safety is to be 1.5. Take Taylor's stability number
for a 1.5 to 1 slope for D=0 as 0.17.

A certain clay layer has a thickness of 5m. After one year when the clay was
50% consolidated 8cm of settlement had occurred. For a similar clay and
loading conditions how much settlement would occur at the end of one year and

4 years, if the thickness of this new layer is 25m?

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