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A natural soil deposits has bulk unit weight (4) 10m 1844kn/m2 & water content 5%. calculate amount of water added to 1m3 soil raise water content 15%.What is degree of saturation?
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Given:-

ww=w×w5

w=5=0.05

γ=18.44kn/m2

G=2.67

Ww1=0.05ws

Ww2=0.15Ws

Quantity of water to be added =0.15ws0.05ws

γd=γ1+w=18.441+0.05=17.56kn/m3

Ws=γd×γ

For 1m3 volume.

Ws=17.56×1=17.56kN

Ww=0.1×17.56=17.56kN

Vw=Wwγw=1.7569.81=0.179m3 i.e 179 litres.

e=Gγmwγd1=2.679.8117.561

e=0.492

weight of sand filling hole …

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