For the flow net shown below, the soil saturated unit weight is 20 kN/m3, water unit weight is 10 kN/m³, calculate: (k = 1.4 x 10:5m/s, Hupstream=8.6) (2) Nd=? difference (H)=? (m) Nf=? (3) Head (1) if the datum at the ground surface, the (4) total head (ht)=? (m) the quantity of seepage under the (5) dam=? (m³/s per m) the pressure head (hp) at point A=? (m) (6) the pressure head (hp) at point B=? (m) (7) ?=the exit hydraulic gradient (ie) (8) the factor of safety against the boiling (9) ?=(F.S)

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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For the flow net shown below, the soil
saturated unit weight is 20 kN/m3, water
unit weight is 10 kN/m³, calculate: (k = 1.4
x 10-5m/s, Hupstream=8.6)
(2) Nd=?
difference (H)=? (m)
Nf=?
(3) Нead (1)
if the datum at the ground surface, the (4)
total head (ht)=? (m)
the quantity of seepage under the (5)
dam=? (m³/s per m)
the pressure head (hp) at point A=? (m) (6)
the pressure head (hp) at point B=? (m) (7)
?=the exit hydraulic gradient (ie) (8)
the factor of safety against the boiling (9)
?=(F.S)
2m
20m 15m
0.9m
13m
13m
22m
B
Impermeable Rock
Transcribed Image Text:For the flow net shown below, the soil saturated unit weight is 20 kN/m3, water unit weight is 10 kN/m³, calculate: (k = 1.4 x 10-5m/s, Hupstream=8.6) (2) Nd=? difference (H)=? (m) Nf=? (3) Нead (1) if the datum at the ground surface, the (4) total head (ht)=? (m) the quantity of seepage under the (5) dam=? (m³/s per m) the pressure head (hp) at point A=? (m) (6) the pressure head (hp) at point B=? (m) (7) ?=the exit hydraulic gradient (ie) (8) the factor of safety against the boiling (9) ?=(F.S) 2m 20m 15m 0.9m 13m 13m 22m B Impermeable Rock
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