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In: Civil Engineering

The clay layer below is covered with a layer of fill as shown. Assume the fill...

The clay layer below is covered with a layer of fill as shown. Assume the fill is placed instantaneously.

  1. Estimate the magnitude of primary consolidation settlement for the clay layer due to placement of the fill.
  2. Plot the distribution of pore pressure with depth before the fill is placed.
  3. Plot the distribution of pore pressure with depth immediately after the fill is placed.
  4. Plot the distribution of pore pressure 10 years after the fill is placed.
  5. Determine how long it will take to reach 90% of the final primary consolidation settlement.

3 m         Fill           gt=20 kN/m3

3 m         Sand       gd=15 kN/m3

5 m         Sand       gsat=20 kN/m3

8 m         Clay       gt=20 kN/m3

                CR=0.2   RR=0.04    cv=1.5 m2/yr

                OCR=1, A=0.7

Sand

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Ally Wells answered 3 years ago
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