Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 18, Problem 18.9P
Determine the maximum load that can be allowed on a 500 mm diameter and 18 m long pile driven into a clay where γ = 20.0 kN/m3 and cu = 60 kN/m2. Use the a method for determining the skin friction. Allow a factor of safety of 3. What percentage of the ultimate load is being carried by the pile shaft?
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Chapter 18 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
Ch. 18 - State whether the following are true or false. a....Ch. 18 - A 1500 kN load was applied on two 20 m long and...Ch. 18 - A 500 mm diameter and 20 m long concrete pile is...Ch. 18 - A 400-mm diameter and 15 m long concrete pile is...Ch. 18 - A 400 mm 400 mm square precast concrete pile of...Ch. 18 - Prob. 18.6PCh. 18 - Prob. 18.7PCh. 18 - Prob. 18.8PCh. 18 - Determine the maximum load that can be allowed on...Ch. 18 - Prob. 18.10P
Ch. 18 - Redo Problem 18.10 using the method for...Ch. 18 - Determine the maximum load that can be allowed on...Ch. 18 - Prob. 18.13PCh. 18 - A steel pile (H-section; HP 360 1.491; see Table...Ch. 18 - A concrete pile is 18 m long and has a cross...Ch. 18 - Prob. 18.16PCh. 18 - Prob. 18.17PCh. 18 - Prob. 18.18PCh. 18 - Prob. 18.19PCh. 18 - Figure 18.26a shows a pile. Let L = 20 m, D = 450...Ch. 18 - Refer to Figure 18.26b. Let L = 15.24 m, fill =...Ch. 18 - Prob. 18.22PCh. 18 - Figure 18.39 shows a 3 5 pile group consisting of...Ch. 18 - The section of a 4 4 group pile in a layered...Ch. 18 - Prob. 18.25PCh. 18 - Prob. 18.26CTP
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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
- The following pile with a diameter of 600mm is driven into clay strata as provided below: Calculate the end bearing capacity if Nc = 8.5 Determine the skin friction capacity of the pile Find the allowable load if the factor of safety is 3.0 Please answer this asap. For upvote. Thank youarrow_forwardPlease round to the nearest Hundredth (i.e., 0.01). No Comma! A square pile, 21 m long is driven into a homogeneous sand layer. The pile's width (diameter) is 0.4m. The standard penetration resistance near the vicinity of the pile is 12. Calculate the ultimate skin friction force (Qs) of the pile. Use Briaud & Tucker method. Hint: Qs = fs x As Qs = kNarrow_forwardPlease round to the nearest Hundredth (i.e., 0.01). No Comma! A square pile, 21 m long is driven into a homogeneous sand layer. The pile's width (diameter) is 0.4m. The standard penetration resistance near the vicinity of the pile is 12. Calculate the ultimate skin friction force (Qs) of the pile. Use Briaud & Tucker method. Hint: Qs = fs x As Qs = Answer kNarrow_forward
- A concrete pile 450 mm in diameter and 15 m long is driven into a clay soil. The undrained strength “su”of the soil is 39.55 kPa. Calculate the allowable pile load capacity using “α” (Alpha) method. The factor of safety required is 2 and γsat = 18 kN/m3. Groundwater table is at the ground surface.arrow_forwardanswer should be on the choicesarrow_forwardPlease solve it complete in one hourarrow_forward
- (a) Determine the allowable load-carrying capacity of the bored concrete pile for: embedded length = 8 m, and embedded length = 11 m. Take the diameter of the pile as 0.5m. (Answer Qall = 357 kN @8m and 573 kN @11m for FS = 3). FS The factor of safety generally used ranges from 2.5 to 4, depending on the uncertainties surrounding the calculation of ultimate load. Depth (m) v = 20 kN/m3 p' = 30° Ks = 1.0 Loose granular fill y = 21 kN/m3 p' = 35° Ks = 2.0 Dense gravel 7 v = 20 kN/m3 cu at 7.0 m = 120 kPa cu at 8.0 m = 145 kPa Glacial clay cu at 11.0 m = 220 kPa, adhesion factor, a = 0.6, Nc = 9 11arrow_forwardPlease round to the nearest Hundredth (i.e., 0.01). No Comma! A circular pile, 16 m long is driven into a homogeneous sand layer. The pile's width (diameter) is 0.3 m. The standard penetration resistance near the vicinity of the pile is 17. Use FS = 2 and Briaud & Tucker method. Point force, Qp = kN Skin friction force, Qs = kN Ultimate bearing force, Qu = kN Allowable bearing force, Qa = kN Next page MacBook Air >> 20 F3 F8 F9 F5 F1 F2 @ #3 2$ & 2 3 4 6 7 8. W E R T Y S D F つ ンのarrow_forwardPlease answer 11.9arrow_forward
- A square pile (B=0.3m) is installed in a silty sand with a friction angle of approximately 28 andno cohesion. The soil is saturated, with a unit weight of 19 kN/m3. Pile length is 15m. Determinethe ultimate load capacity of the pile for the current soil conditions. Use all methods availableand get the best estimate. Estimate the elastic settlement of the pile, assuming a FS = 3. Use Ep= 21 x 106 kN/m2; Es = 20 x 103 kN/m2; µs = 0.35 and ξ = 0.67.arrow_forwardQ3) For the pile-soil system shown in Fig. (3), estimate the required pile length to carry an ultimate vertical load of 2000 kN. Use Meyerhof's method in computing the end bearing resistance and the a-method for the skin resistance. Ans.: L= 20.21 m Pu = 2000 kN G.L. XX Sand Y = 18.1 kN/m3 $ = 30° k = 0.7 5 m W.T. Dense Sand Ysat = 21 kN/m3 $ = 35° k = 0.82 Concrete Pile + + d = 0.3 m Fig. (3)arrow_forwardA concrete pile 50 ft long having a cross section of 15 in. x 15 in. is fully embedded in a saturated clay layer for which γsat = 121 lb/ft3, Φ = 0, and cu = 1600 lb/ft2. Determine the allowable load that the pile can carry. (Let FS = 3.) Use the a method Eq. (9.59) and Table 9.10 to estimate the skin friction and Vesic’s method for point load estimation.arrow_forward
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