Two cables will lift an 18.500-meter-long prestressed pile weighing 3.806 kN/m. 1. Where should each cable be located in relation to the pile ends such that the greatest absolute value of the bending moment in the pile is as modest as possible? 2. At what distance from the pile ends should each cable be placed such that the pile's maximum absolute shear value is as modest as possible? 3. If a cable is placed 3.001 m from one end of the pile while the other end is on the ground, the pile will be lifted. Calculate the pile's maximum developed moment.

Two cables will lift an 18.500-meter-long prestressed pile weighing 3.806 kN/m. 1. Where should each cable be located in relation to the pile ends such that the greatest absolute value of the bending moment in the pile is as modest as possible? 2. At what distance from the pile ends should each cable be placed such that the pile's maximum absolute shear value is as modest as possible? 3. If a cable is placed 3.001 m from one end of the pile while the other end is on the ground, the pile will be lifted. Calculate the pile's maximum developed moment.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter18: Pile Foundation

Section: Chapter Questions

Problem 18.10P

See similar textbooks

Similar questions

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. Zoom image Determine the location of two (2) pickup points from the ends for minimum shearing stress. 2.93m 4.39m O 3.75m O 3.11m
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
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.
A 400 mm 400 mm square precast concrete pile of 15 m length is driven into a sand where = 18.0 kN/m3 and = 33. Assuming = 0.7 and K = 1.4 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.
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).
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?
Two cables will lift an 18.500-meter-long prestressed pile weighing 3.806 kN/m. 1. Where should each cable be located in relation to the pile ends such that the greatest absolute value of the bending moment in the pile is as modest as possible? 2. At what distance from the pile ends should each cable be placed such that the pile's maximum absolute shear value is as modest as possible? 3. If a cable is placed 3.001 m from one end of the pile while the other end is on the ground, the pile will be lifted. Calculate the pile's maximum developed moment.
Two cables will lift a 15.20 meter long prestressed pile. 1. How far away from the pile ends should each cable be located such that the maximum shear is as small as possible? 2. How far apart should each cable be placed from the pile ends in order for the greatest moment to be the smallest possible? 3. How far away from the opposite end of the pile should the cable be put so that the maximum moment is as small as possible?
17) The friction load capacity of the pile using the B-method is most nearly: a. 437 kN b. 927 kN c. 644 KN d. 1100 kN 15 m a. 177 kN b. 345 kN c. 441 kN d. 184 kN Groundwater table 381 mm NC Clay Yar 17 kN/m³ c²-0 kPa $-30° 23 t Sand Ysa 19.2 kN/m³ 18) In the previous question, the tip end-bearing load capacity of the pile using the B- method is most nearly: -28 e'=0 Tp2/3
A solid steel pile (E = 200 GPa) with uniform diameter of 100 mm is driven into a soil layer and placed on top of a rigid bedrock. If the pile is subjected to a vertical force YS: kN and the soil provides uniform frictional resistance of 2 kN/m. Determine the displacement at A'sthe top of the pile. kN A Ground surface Soil Soil 2 m 20 20 Rigid bedrock (Hint: rigid bedrock does not deform) kN/m Steel pile KN/m
Give me right solution with clear calculations.
Negative skin friction on piles O(A) Is caused due to relative settlement of the soil OCB) Is caused in soft clays OC) Decreases the pile capacity O(D) All of the above