Answer Happy

Posted: **Thu Jul 14, 2022 3:00 pm**

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(c) The falling head permeability test was conducted at 20∘c at which γw=9.789kN/m3 and η=1.005×10−3 N.s/m2. Given the data as below; Length of the soil sample, L=16 m Area of the soil sample, A=2.3 m Area of the standpipe, a=0.75 m At time t=0, head difference =410 mm At time t=10 min, head difference =185 mm (i) Determine the absolute permeability of the soil (cm/sec). (5 marks) (ii) What was the head difference at t=6 min. (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)

Answer Happy

(c) The falling head permeability test was conducted at 20∘c at which γw​=9.789kN/m3 and η=1.005×10−3 N.s/m2. Given the

(c) The falling head permeability test was conducted at 20∘c at which γw​=9.789kN/m3 and η=1.005×10−3 N.s/m2. Given the

(c) The falling head permeability test was conducted at 20∘c at which γw=9.789kN/m3 and η=1.005×10−3 N.s/m2. Given the

(c) The falling head permeability test was conducted at 20∘c at which γw=9.789kN/m3 and η=1.005×10−3 N.s/m2. Given the