Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781337516877
Author: Das
Publisher: Cengage
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Chapter 10, Problem 10.21P
Refer to Figure 10.48. If R = 4 m and hw = height of water = 5 m, determine the vertical stress increases 2 m below the loaded area at radial distances where r = 0, 2, 4, 6, and 8 m.
Circular contact area of radius R on the ground surface
Figure 10.48
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7. A rectangular, unfinished concrete channel of 38-ft width is laid on a slope of 8 ft/mi.
Determine the flow depth and Froude number of the flow if the flowrate is 400 ft³/s.
***Please MAKE SURE to include all parts that I have shown in the 8 steps here and follow them but also show work for the entire problem. Those are all correct I just need the entire worked out problem with all of the work.
***When answering the question MAKE SURE to use ALL of these steps and include them in the answer and don't answer the question in a different manner that is different than what is provided here as what is provided is correct (please include the work as well thanks I will like the answer):
1.correct equation: (ΔP / (ρg)) + ΔZ = f * (L / D) * (v^2 / 2g) + (v^2 / 2g) * ΣK_L
2.v = Q / A = 9.17 ft/s
3. Reynolds number: Re = (v * L) / ν = (v * L) / (ρ * μ) = 63,154
4.The pipe is smooth so: ε_d = 0
5.Friction factor from the Moody diagram: f = 0.020
6.Pressure difference: ΔP = P₁ - P₂ = P₁ - 8640 lb_f
7.Head loss due to elevation difference: ΔZ = Z₁ - Z₂ = -10 ft
8.Summation of pipe fittings and losses: ΣK_L = 0.2 + 7 + 2(1.5) + 0.05 = 10.25
9.values to plug in
Length of the pipe: L = 20 ft
Diameter of the pipe: D = 1/12 ft
Fluid density: ρ = 1.94 slugs/ft³
Gravitational acceleration: g = 32.2 ft/s²
Chapter 10 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
Ch. 10 - Prob. 10.1PCh. 10 - Prob. 10.2PCh. 10 - Prob. 10.3PCh. 10 - Prob. 10.4PCh. 10 - Prob. 10.5PCh. 10 - Prob. 10.6PCh. 10 - Point loads of magnitude 125, 250, and 500 kN act...Ch. 10 - Refer to Figure 10.41. Determine the vertical...Ch. 10 - For the same line loads given in Problem 10.8,...Ch. 10 - Refer to Figure 10.41. Given: q2 = 3800 lb/ft, x1...
Ch. 10 - Refer to Figure 10.42. Due to application of line...Ch. 10 - Refer to Figure 10.43. A strip load of q = 1450...Ch. 10 - Repeat Problem 10.12 for q = 700 kN/m2, B = 8 m,...Ch. 10 - Prob. 10.14PCh. 10 - For the embankment shown in Figure 10.45,...Ch. 10 - Refer to Figure 10.46. A flexible circular area of...Ch. 10 - Refer to Figure 10.47. A flexible rectangular area...Ch. 10 - Refer to the flexible loaded rectangular area...Ch. 10 - Prob. 10.19PCh. 10 - Prob. 10.20PCh. 10 - Refer to Figure 10.48. If R = 4 m and hw = height...Ch. 10 - Refer to Figure 10.49. For the linearly increasing...Ch. 10 - EB and FG are two planes inside a soil element...Ch. 10 - A soil element beneath a pave ment experiences...
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