(Solved): I. Calculate the elevation head, the pressure head and the total head at points A and B. B3:3 ...

I. Calculate the elevation head, the pressure head and the total head at points $$A$$ and $$B$$. $$\frac{3:?3}{B}??14?1?01$$ II. Later, the height of the soil specimen was gradually lowered from its original $$2\mathrm{m}$$ (as shown in the figure) until quicksand (boiling) Dondition was reached at a height of $$L$$ ( $$\mathrm{m})$$. The saturated unit weight of the soil specimen is $${?}_{\text{sat }}=19.0\mathrm{kN}/{\mathrm{m}}^3$$ Calculate the value of $$L$$. The unit weight of water is $${?}_w=10\mathrm{kN}/{\mathrm{m}}^3$$