Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781337516877
Author: Das
Publisher: Cengage
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 16, Problem 16.10P
If the water table in Problem 16.9 drops down to 0.25 m below the foundation level, what would be the change in the factor of safety for the same gross allowable load?
16.9 A square footing is shown in Figure 16.18. Determine the gross allowable load, Qall, that the footing can carry. Use Terzaghi’s equation for general shear failure (Fs = 4). Given: γ = 17 kN/m3, γsat = 19.2 kN/m3, c′ = 32 kN/m3,
Figure 16.18
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
** Please do not put the n value as 0.024 it is incorrect. Also, please remember to identify the channel type.
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.
Chapter 16 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
Ch. 16 - A continuous footing is shown in Figure 16.17....Ch. 16 - Refer to Problem 16.1. If a square footing with...Ch. 16 - Redo Problem 16.1 with the following: = 115...Ch. 16 - Redo Problem 16.1 with the following: = 16.5...Ch. 16 - Redo Problem 16.1 using the modified general...Ch. 16 - Redo Problem 16.2 using the modified general...Ch. 16 - Redo Problem 16.3 using the modified general...Ch. 16 - Redo Problem 16.4 using the modified general...Ch. 16 - Prob. 16.9PCh. 16 - If the water table in Problem 16.9 drops down to...
Ch. 16 - Prob. 16.11PCh. 16 - A square footing is subjected to an inclined load...Ch. 16 - A square footing (B B) must carry a gross...Ch. 16 - Redo Problem 16.13 with the following data: gross...Ch. 16 - Refer to Problem 16.13. Design the size of the...Ch. 16 - Prob. 16.16PCh. 16 - Prob. 16.17PCh. 16 - Refer to the footing in Problem 16.16. Determine...Ch. 16 - Figure 16.21 shows a continuous foundation with a...Ch. 16 - The following table shows the boring log at a site...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- ***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/s²arrow_forward5. A uniform flow of 110,000 ft³/s is measured in a natural channel that is approximately rectangular in shape with a 2650-ft width and 17.5 ft depth. The water-surface elevation drops 0.37 ft per mile. Based on the computed Manning coefficient, n, characterize the type of natural channel observed. Also compute the Froude number and determine whether the flow is subcritical or supercritical.arrow_forwardFor the gymnasium floor plan shown, determine the dead loads and live loads acting on beam BF and girder AD.arrow_forward
- The building elevation section and the floor plans shown below. Assume a live load of 60 psf on all three floors. Calculate the axial forces by the live load in column C2 in the third and first stories. Consider live load reduction if permitted by ASCE.arrow_forwardQ1: The part in adjacent figure has 2mm thickness is to produce in blanking process from aluminum sheet has shear strength 1. Sketch the required blanking 2. Main cutting force. 3. equal to 400 MPa. Determine: die. Sequence of shearing operations. اكد من Dimensions (mm)arrow_forward2: A (4m*8m) rectangular flexible foundation is placed above the ground surface for two layers of clay, for each layer 12m thick, The modulus of Elasticity (Eu) of the upper layer is 15 MN/m² and that of the lower is 25 MN/m². The Poisson ratio is (M = 0.35 35) for the two layers and the Column load is 90 KN. Determine the immediate settlement at the Corner of the foundation using Elastic theory method?arrow_forward
- 11: A Square foundation is required to Carry a total load of 660 KN in cohesionless soil. The water table locates at the base of foundation. Determine the width of the foundation? (Use Terzaghi equation). Note: Jd=18 kN/m² 3 Depth of foundation = 1.2 m Factor of Safety = 3 0° = 25 ४. 8 sat ర 3 = 20 KN/m³ 3 Ow = 10 kN/m² Assume the allowable bearing Capacity is equal to the actual bearing Capacity (I actual).arrow_forwardHW: Design a rectangular sedimentation tank that will treat 1500 m³/d, the smallest particle to be 100% removed is 0.03 mm in diameter. The detention time is 3 hrs, inlet flow velocity is 96 m/d, knowing that p of water =1000 kg/m³, μ of water =1*10-³ N.s/m², S.G =1.65. Find: (1) Dimensions of the tank. (2) Volume of the settled solid (m³/d) if the concentration of the suspended solids in the flow is 500 mg/l.arrow_forwardQ1/ Find 1- Find principle stresses (61 and 62) angle of rotation and draw 2- Txy-max then draw the element with stresses 3- If the element is rotated in Ø find the stresses and then draw the element with stresses °X = 50 OX = 40 Txy = -20 8(cw) = 15 Txy 0xarrow_forward
- Which one of the following statements is NOT true about this graph? E F D Figure 1 There is a circuit. A loop exists. There are multiple edges. It is a connected graph. B * 2 points graph has a degree 3 for each vertex, then how many k 2 pointsarrow_forward2. A site is underlain by a 5m-thick layer of clay. Below the layer of clay lies a 7m-thick layer of sand. The water table is located 2m below the ground surface. Draw the profile. Then, calculate the vertical effective stress at a point located 6m below the ground surface. Show your work and circle the answer.arrow_forward***The answer includes: 1. The correct dimension of variables is: F: MLT^-2, v: LT^-1, μ:ML^-1T^-1, ρ: ML^-3, w: L 2. Choice of repeating variables: (w,v,ρ). Choice does NOT include F. Stick with choice throughout. 3. # pi terms = # variables- # dimensions = 5-3=2. 4. π1= F/w^2v^2ρ 5. π2= μ/wvp These are the correct answers for the problem, I just need the work involved in solving itarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Geotechnical Engineering (MindTap C...Civil EngineeringISBN:9781305970939Author:Braja M. Das, Khaled SobhanPublisher:Cengage Learning
Principles of Foundation Engineering (MindTap Cou...Civil EngineeringISBN:9781337705028Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage Learning
Principles of Geotechnical Engineering (MindTap C...
Civil Engineering
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Cengage Learning
Principles of Foundation Engineering (MindTap Cou...
Civil Engineering
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning
CE 414 Lecture 02: LRFD Load Combinations (2021.01.22); Author: Gregory Michaelson;https://www.youtube.com/watch?v=6npEyQ-2T5w;License: Standard Youtube License