A masonry dam has a coefficient of permeability in the vertical andhorizontal directions of Kz=4m/day and Kx-5m/day, respectively.The difference in the head is 18m and the distance between thebase of the dam and the downstream water surface is 18m. Assumez=35m and width of dam = 40m. Determine the uplift force (KN) acting under the dam. ASsume thatthe uplift pressure under the dam varies uniformly.Note: Your answer must contain 3 numbers after the decimal point.(Example: 0.504, 0.899, 0.045, 0.002, 0.100)

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Answered: A masonry dam has a coefficient of…

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter8: Stresses In A Soil Mass

Section: Chapter Questions

Problem 8.2P

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A masonry dam has a coefficient of permeability in the vertical and horizontal directions of Kz=4m/day and Kx=5m/day, respectively. The difference in the head is 18m and the distance between the base of the dam and the downstream water surface is 18m. Assume z=35m and width of dam = 40m. a. Determine the seepage flow (m3/day) b Determine the uplift pressure (kpa) at A. c. Determine the uplift force (x10^3 kN) acting in the dam. Assume that the uplift pressure under the dam varies uniformly.
A 60 cm CI main pipe leads from a reservoir whose water surface is at Elev. 1590 m. Below the ground surface level, the main pipe is horizontally positioned at Elev. 1410 m. Assuming static condition, what is the stress in the pipewall if the wall thickness is 12.50 mm and the soil pressure is 520 kPa? a.18.2 MPa b.32.6 MPa c.20.5 MPa d.28.7 MPa
A 60 cm Cl main pipe leads from a reservoir whose water surface is at Elev. 1590 m. Below the ground surface level, the main pipe is horizontally positioned at Elev. 1410 m. Assuming static condition, what is the stress in the pipewall if the wall thickness is 12.50 mm and the soil pressure is 520 kPa? a. 18.2 MPa O b. 20.5 MPa O . 28.7 MPa O d. 32.6 MPa
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gives a cross section of a concrete dam. The subsoil is anisotropic and has permeabilities kh = 0.8 x 10 in./sec and kv= 2.0 x 10 in./sec. Find the rate of flow 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 ky k₁ 55 ft Concrete dam TAVAY 557 KN Kin + TAVAS imisel. 275-21 AWAW
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A masonry dam as shown has a coefficient of permeability in the vertical and horizontal direction of Kz=4.5m/day and Kx=6m/day, respectively. Assume length into the paper =35m and base width = 40m. 24 m a) Determine the seepage (lit/sec) into the downstream side per meter of the dam. 0.525 lit/sec b) Calculate the average of the pressure of the toe and heel of the dam in kPa. c) Calculate the total uplift force in x10^3 kN.
Q.1 For the concrete dam shown in figure, square I is (1.5x1.5m). Find: 1. value of hy and h₂ if (i) at square I is (0.2 and pressure head at point A is (8m). 2. amount of seepage. 3. factor of safety. Concrete hi Dam f I 6M qu & TV₂ -l=05m 4 k=10 m/sec 8t=19kw/³²
= 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 TAVAW
A dam is triangular in cross-section with the upstream face vertical Water is flushed with the top. The dam is 8 m high and 6 m wide at the base and weighs 2.4 tons per cubic meter. The coefficient of friction between the base and the foundation is 0.8. Determine (a) the maximum and minimum unit pressure on the foundation (Ans.=-139.47 kPa & -48.88 kPa), and the (b) factors of safety against overturning and against sliding (Ans: FSs=1.44 & FSo=2.7)
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