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a, The flow rate is given by q = k x H x Nf / Nd
k = 8 x 10-4 cm/sec
H = 5-1= 4 m
Nf = 4
Nd = 14
q = 8 x 10-4 x 10-3 x 4 x 4/14 = 9.143 x 10-7 m2/sec per metre of dam out of plane
= 9.143 x 10-7 x 3600 x 24 = 0.0789942 m2/day per metre out of dam out of plane
Nf = 14
Head drop = 16/14 = 1.143m per equipotential drop;
Head at point A = 16- 3x1.143 = 12.571
Head at point B=16- 5x1.143 = 10.258
Head at point C= 16-9x1.143= 5.713
FS against uplift faillure for this dam= icritical/iactual ;
icritical = (G-1)/(1+e) = (2.7-1)/(1+0.85) = 0.865
iactual = 4/(11x1) = 0.3636
FS against uplift failure = 0.865/0.3636 = 2.379
3. The flow net shown below illustrates flow conditions beneath a concrete dam featuring an upstream...
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