A 4 m deep layer of normally consolidated clay with the water table at the surface is to be surcharged with a 3.0 m deep layer of gravel at a total unit weight of 22 kN/m3. Testing of the clay shows it has a moisture content of 40% and a total unit weight of 17 kN/m3. The water table is at the surface of the clay layer. Prior to surcharging a settlement plate is installed at the top of the clay to measure the settlement of the clay layer. 50 days after surcharging, the settlement plate shows 141.9
141.9 mm settlement of the clay later. A long time after surcharging when all settlement has ceased it shows 258
258 mm settlement. After that the surcharging gravel is removed and the settlement plate measures a clay layer heave of 89
89 mm a long time after removal. Use the settlement plate readings to determine the following properties of the clay: Cc, Cr, Cv
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