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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A circular concrete pile 350 mm in diameter is to support a load of 270kN.Itis driven in a stiff clay (α = 0.50). The unconfined compressive strength of clay is 170 kPa. Assume a factor of safety of 2.50 and Nc = 9. Determine the end bearing capacity of the pile. Determine the developed skin friction along the surface of the pole. Determine the minimum length of the pile that can carry the given load
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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
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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
- 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
- Please answer 11.9arrow_forwardA 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_forward
- age Please 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 0.4 m. The standard penetration resistance near the vicinity of the pile is 29. Use FS = 2 and Briaud & Tucker method. Point force, Qp = Skin friction force, Qs = Q A Ultimate bearing force, Qu = Allowable bearing force, Qa = F1 2 W S F2 kN #3 20 F3 E D kN S4 kN $ KN 000 000, F4 R F % 5 F5 T MacBook Air A 6 G Y ✓ & 7 H U ► 11 * 8 J F8 Next page 1 9 Karrow_forwardA 30 m long concrete pile is 305 mm times 350 mm in cross section and is fully embedded in a sand deposit. Using Broms' method, calculate the allowable lateral load Q_g (take FS = 2) at the ground level. Assume the pile is flexible and restrained. Let the soil unit weight, gamma = 16 kN/m^3, the soil friction angle, Phi' = 30^degree; and the yield stress of the pile material, F_y = 21 MPa,arrow_forwardPlease answer 11.7arrow_forward
- A single pile of diameter 50 cm and length 10 m is driven into clay having unconfined compressive strength of 100 kN/m2. The ultimate load bearing capacity of the pile considering end bearing also will be Nc = 7, a = 0.7). kN. (Take, %3Darrow_forwardSubject: soil mechanics 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 42.6 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_forward.arrow_forward
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