J Find the width of elementary gravity dam whose height is 100 m. Specific gravity 2.2 and seepage coefficient at the base C = 0.8.
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- #18 A non isotropic soil supporting the dam as shown in the figure. The flow net has 4 flow channels and 20 equipotential drops. Coefficient of permeability of soil. Vertical coefficient of permeability: Kv = 0.002 m/day Horizontal coefficient of permeability: Kx = 0.018 m/day 12m 4mA homogeneous anisotropic embankment dam section is detailed in Figure 2.21(a), Construct the flow net 15.00 m 2.5 2.5 31 18.00 m Р. 120.00 m 5.50 m 45.00 m 15.50 m (а).An earth dam is shown in Fig 4 . Determine the seepage rate, q, in m3/day/m length. Given: α1 =350, α2 = 400, L1 = 5 m, H =7 m, H1 =10 m, and k =3 x 10 -4 cm/sec. Use Schaffernak’s solution.
- Given a rectangular dam having a width at the top is 4 m, height of the dam is 12 m and specifi gravity is 2.4. Solve for the height of the water at the upstream side. Please solve it asap and with FBD. Thank you5- An earth dam is shown below. Determine the seepage rate, q, in ft/day/ft length. Given: a1=35°, az=40°, L1=5 ft, H=7 ft, Hj=10 ft, and 3X104 ft/sec. Water level k H a2 Impervious baseDetermine the smallest base length b of the concrete gravity dam that will prevent the damfrom overturning due to water pressure acting on the face of the dam. The relative density ofconcrete is 2.4.Hint: Work the problem using a 1-m width of dam. Perform this exercise with two differentassumptions:a. Assume no water seepage under the base of the damb. Assume water also seeps under the base of the dam
- In a homogenous earth dam, total head loss through the soil is 25m. The flownet drawn in the dam section consists of 7 flow lines and 14 potential drops. IF the dam is 1000m long and the permeability of the material of the dam is uniformly 5x10-3 m/sec. The Total discharge permeating through the body of dam will be5.Hydraulic jump occurs in a 4 m wide rectangular channel. Discharge in channel 7.5 m^3 /s, hydraulic jump upstream depth 0.2 m. Determine :the rate of energy loss due to hydraulic jump.An earthdam has a crest width of 15 feet , total height of 40 feet and the inclinations at heel and at toe both at 45 degrees w.r.t. the horizontal. If the coefficient of permeability of the earthdam material is 0.00042 ft/min, determine the seepage rate in cubic feet/day/ft of dam. Height of water at upstream is 30 feet. Use Dupuit's method. O 3.8428 O.00277 O 3.5873 O.00267 |oooo
- = gives a cross section of a concrete dam. The subsoil is anisotropic and has 0.8 x 10 in./sec and kv 2.0 x 10 in./sec. Find the rate of flow permeabilities kh beneath the dam per foot length of the dam. And the factor of safety against piping if void ratio of soil= 0.68 and Gs= 2.7. 32 ft 3 ft ZAW ky kh 55 ft Concrete dam TAVAS 557 KN WAY Swise. 275-21 TAVAWQ2] Water flows in a rectangular channel at a depth of 1.5 m. A 30 cm in height smooth hump produses a drop of 15 cm in the water surface elevation. Neglect losses and calculate the discharge per unit width of the channel. Energy line E₁ Y₁ 0.15 m V V₂ 1₂ Hump AZ=0.30 m 2Q2) For the concrete dam in Fig. 2, calculate the 1) seepage quantity in cm³/sec, and 2) pore water pressure (u) in the points 1 to 7 at the bottom of the dam. (yw = 10 kN/m³). the Nd. 1.5 m 10 m 3 1 .} 4 (k = 10-³ cm/sec) } 1 1 1 24 m " R I 1 1 Figure 2.