12. Provide a detailed step by step solution. Situation 9 - An 18-m long prestressed pile weighing 3.8 kN/m is to be lifted by twocables.25. At what distance (m) from the pile ends must each cable be placed such that themaximum absolute value of the bending moment in the pile is as small aspossible.A. 3C. 3.73B. 4.25D. 4.526. At what distance (m) from the pile ends must each cable be placed such that themaximum absolute value of the shear in the pile is as small as possible.A. 3.73C. 4.5D. 3B. 4.25 ructionC. 82.327. If the pile is lifted by a cable placed 3 m from one end, while the other end is onthe ground, compute the maximum moment (kN-m) developed in the pile.

Udl = 3.8 kN/m Length of pile = 18 m

Situation 9 - An 18-m long prestressed pile weighing 3.8 kN/m is to be lifted by two cables. 25. At what distance (m) from the pile ends must each cable be placed such that the maximum absolute value of the bending moment in the pile is as small as possible. A. 3 B. 4.25 C. 3.73 D. 4.5 26. At what distance (m) from the pile ends must each cable be placed such that the maximum absolute value of the shear in the pile is as small as possible. A. 3.73 C. 4.5 D. 3 B. 4.25

Situation 9 - An 18-m long prestressed pile weighing 3.8 kN/m is to be lifted by two cables. 25. At what distance (m) from the pile ends must each cable be placed such that the maximum absolute value of the bending moment in the pile is as small as possible. A. 3 B. 4.25 C. 3.73 D. 4.5 26. At what distance (m) from the pile ends must each cable be placed such that the maximum absolute value of the shear in the pile is as small as possible. A. 3.73 C. 4.5 D. 3 B. 4.25

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter18: Sheet-pile Walls

Section: Chapter Questions

Problem 18.9P: Refer to Figure 18.23. Given L1=3m, L2=6m, l1=1.5m, =16.5kN/m3, sat=19.0kN/m3 and =35. a. Find the...

See similar textbooks

Similar questions

A 500 mm diameter are 20 m long concrete pile is driven into a sand where = 18.5 kN/m3 and = 32. Assuming = 0.7 and K = 1.5 Ko, determine the load-carrying capacity of the pile, with a factor of safety of 3. Use Meyerhofs method [Eq. (12.18)] for computing the point load-carrying capacity Qp, and Eqs. (12.42) and (12.43) for computing the load-carrying capacity of the pile shaft Qs.
SITUATION. A 15m precast concrete pile is to be lifted. If the unit weight of concrete is 23.54kN/m3 and the section of the pile measures 400mm by 400mm. Determine the location of two (2) pickup points from the ends for minimum shearing stress. A.2.93m B.4.39m C.3.75m D.3.11m
SITUATION 13: A 0.30 m square prestressed concrete pile that is 10 m long is to be driven in a clayey soil whose unconfined compressive strength is 115 kN/m³. The unit weight of clayey is 18 kN/m³. The pile has a design capacity of 360 kN.45. Which of the following most nearly gives the end bearing capacity of pile if Nc=9?a. 25.63 Kn b. 41.55 KN c. 46.58 Kn d. 18.65 Kn46. Which of the following gives the skin friction capacity of pile if =0.76? a. 583.29 Kn b. 680.47 Knc. 501.65 Kn d. 605.21 Kn47. Which of the following most nearly gives the pile capacity if factor of safety is 2.0? a. 420.5 Kn b. 260.5 KN c. 186.6 Kn d. 363.5 Kn
44.) A prestressed concrete pile, 458 mm in diameter, is to be driven in a clayey soil. The pile has a design capacity of 433 kN. Use FS = 4, unconfined compressive strength = 164 kPa. Compute the length (in m.) of the pile if the frictional constant is 0.8. Round off to two decimal places.
A 0.36-m square prestressed concrete pile is to be driven in a clayey soil. The design capacity of the pile is 360 kN, with a factor of safety of 2.00. The unconfined compression strength of clay is 115 kPa. Unit weight of clayey soil is 18 kN/m³. Which of the following most nearly gives the end bearing capacity of the pile in kN if N꜀ = 9?
A 0.36-m square prestressed concrete pile is to be driven in a clayey soil. The design capacity of the pile is 360 kN, with a factor of safety of 2.00. The unconfined compression strength of clay is 115 kPa. Unit weight of clayey soil is 18 kN/m³. Which of the following most nearly gives the skin friction expected to be develop along the shaft of the pile in kN?
A 0.30 m square prestressed concrete pile that is 20m long is to be driven in a clayey soil whose unconfined compressive strength is 115 kN/m^3. Unit weight of the clayey soil is 18 kN/m^3. The pile has a design capacity of 360 kN.1. Find the end bearing capacity of pile if Nc = 9. a. 46.58 kNb. 41.55 kNc. 25.63 kNd. 18.65 kN2. Find the skin friction capacity of pile if coefficient of adhesion is 0.76. a. 1501.65 kNb. 1605.23 kNc. 1360.94 kNd. 1583.21 kN3. Find the pile capacity if factor of safety is 2.0. a. 186.6 kNb. 420.5 kNc. 360.5 kNd. 703.76 kN
Solve Problem 12.23 using the method of Broms. Assume that the pile is flexible and free headed. Let the soil unit weight, = 16 kN/m3; the soil friction angle, = 30; and the yield stress of the pile material. FY = 21 MN/m2. 12.23 A 30 m long concrete pile is 305 mm 305 mm in cross section and is fully embedded in a sand dcposit. If nh = 9200 kN/m2, the moment at ground level Mg = 0, the allowable displacement of pile head = 12 mm; Ep = 21 106 kN/m2, and FY(pile) = 21,000 kN/m2, calculate the allowable lateral load, Qg, at the ground level. Use the elastic solution method.
Determine the maximum load that can be allowed on a 500 mm diameter and 18 m long pile driven into a clay where = 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?
Refer to Figure 18.23. Given L1=3m, L2=6m, l1=1.5m, =16.5kN/m3, sat=19.0kN/m3 and =35. a. Find the required depth of the sheet pile, increasing the theoretical estimate by 30%. b. Determine the force in the tie rods if they are spaced 3 m apart horizontally. c. Find the maximum bending moment in the sheet pile.
A driven closed-ended pile, circular in cross section, is shown in Figure P12.7. Calculate the following. The ultimate point load using Meyerhof’s procedure. The ultimate point load using Vesic’s procedure. Take Irr = 50. An approximate ultimate point load on the basis of parts (a) and (b). The ultimate frictional resistance Qs. [Use Eqs. (12.42) through (12.44), and take K = 1.4 and δ′ = 0.6ϕ′.] The allowable load of the pile (use FS = 4).
11. A prestressed concrete pile, 474 mm in diameter, is to be driven in a clayey soil. The pile has a design capacity of 446 kN. Use FS = 3, unconfined compressive strength = 157 kPa. Compute the length (in m.) of the pile if the frictional constant is 0.8.