C The Void Ratio Of The Soil At A Construction Site Is Determined 0 92 The Compaction Work Is Carried Out Establish S 1 (39.79 KiB) Viewed 35 times
(c) The void ratio of the soil at a construction site is determined 0.92. The compaction work is carried out establish subgrade formation. The in place void ratio at the end of compaction was found 0.65. By assuming the moisture content remains unchanged, determine (i) Percent (\%) decreases in the total volume of the soil due to compaction. (4 marks) (ii) Percent (\%) increase in the field unit weight. (4 marks) (iii) Percent (\%) change in the degree of saturation. (4 marks)
EQUATION LIST T=π×cα×(2D2×L+6D2) γ=VwW ρd=1+ SsW4G2ρw γd=1+100w(%)γ γd=1+SGswGdZˉs τ′=c+σn′tanϕ′ E= M old Volume Number of Blow/ ayer × Number of Layer × Weig α1=a3tan2(45∘+2ϕ)+2ctan(45∘+2ϕ) σ3=σ1tan2(45∘−2ϕ)−2ctan(45∘−2ϕ) σa=2σ1+σs+2σ1−σ3cos2θqi=Akαii τf=2σ1−σ3sin2θk=Aiq k=2.303 Ata Llog= h2h1kka4=kdkx k= AhuQ Li=LΔh k=2.727H(ht−hr)qlog10(trn)k=π(h12−h22)2.303qlog11(t2n)
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