Fill in the blank: Over-consolidated clay behaves similar to (a)   sand.

Fill in the blank: For normally consolidated clay, the slope of the virgin compression curve is called the (a)   .

Casagrande method from the oedometer test is used to find the time corresponding to (a)   percent consolidation.

: For a clay layer with $$H=5\,\text{m}$$ , increase in effective stress $$\Delta\sigma'=80\,\text{kN/m}^2$$ , and coefficient of volume compressibility $$m_v=0.00045\,\text{m}^2/\text{kN}$$ , compute the final consolidation settlement .

(a)  

A clay layer shows over-consolidated behaviour with data $$H=4\,\text{m}$$ , $$e_0=0.70$$ , $$C_r=0.05$$ , $$C_c=0.30$$ , preconsolidation pressure $$\sigma_p'=120\,\text{kN/m}^2$$ , initial effective stress $$\sigma_0'=80\,\text{kN/m}^2$$ , and final effective stress $$\sigma_1'=200\,\text{kN/m}^2$$ . Calculate the total consolidation settlement.

(a)