d. The ultimate frictional resistance Q. [Use Eqs. (11.45)through (11.47) and take K=1.4 and 8'=0.66'.]3.05 mWatertableYsaty = 15.72 kN/m³' = 32°c' = 018.24 kN/m²$' = 32°3.05 mc' = 015.24 mYsat=19.24 kN/m³$' = 40°c' = 0Figure P11.415 in. 114 A driven closed-ended pile, circular in cross section, isshown in Figure P11.4. Calculate the following:a. The ultimate point load using Meyerhof's procedure.b. The ultimate point load using Vesic's procedure. TakeI,, = 50.e. An approximate ultimate point load on the basis of parts(a) and (b).

Answered: Image /qna-images/answer/5204ba00-f08e-4580-a468-09e9fe8dcf44.jpg

Answered: d. The ultimate frictional resistance…

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 18.7P

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Figure 18.26a shows a pile. Let L = 20 m, D = 450 mm. Hf = 4m, f = 17.5 kN/m3, fill = 25. Determine the total downward drag force on the pile. Assume that the fill is located above the water table and that = 0.5 fill. FIG. 18.26 Negative skin friction
A 20 m long concrete pile is shown in Figure P12.2. Estimate the ultimate point load Qp by a. Meyerhofs method b. Vesics method c. Coyle and Castellos method Use m = 600 in Eq. (12.28).
A 600 mm diameter and 25 m long driven concrete pile carries a column load of 1200 kN. It is estimated that the shaft carries 900 kN and the point carries 300 kN. Determine the settlement of the pile head using the Poulos and Davis method with the following data: Es = 25 MN/m2, Ep = 30,000 MN/m2, and s = 0.2
The wooden pile shown in the figure has a diameter of 95 mm and is subjected to a load of P = 80 kN. Along the length of the pile and around its perimeter, soil supplies a constant frictional resistance of w = 2.90 kN/m. The length of the pile is L = 5.6 m and its elastic modulus is E = 8.6 GPa.Calculate(a) the force FB needed at the base of the pile for equilibrium.(b) the magnitude of the downward displacement at A relative to B.
In Problem 18.4, find the maximum bending moment in the sheet pile and determine the required section modulus, assuming an allowable stress of 190 MN/m2. 18.4 Refer to Figure 18.13. Given L1 = 1.5 m, L2 = 3 m; for the sand, =33, =16.5kN/m3, sat=19.0kN/m3; and, for the clay, c=50kN/m2, =0, sat=20kN/m3. Determine the depth of sheet pile required, allowing for a 50% increase from the theoretical estimate.
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.
Determine the maximum load that can be allowed on a 450 mm diameter driven pile shown in Figure P12.6, allowing a factor of safety of 3. Use K = 1.5 Ko and = 0.65 in computing the shaft load. Use Meyerhofs method for computing the point load.
Redo Problem 12.20 using Vesics method, assuming that the skin friction is distributed uniformly along the shaft. 12.20 A 600 mm diameter and 25 m long driven concrete pile carries a column load of 1200 kN. It is estimated that the shaft carries 900 kN and the point carries 300 kN. Determine the settlement of the pile head using the Poulos and Davis method with the following data: Es = 25 MN/m2, Ep = 30,000 MN/m2, and s = 0.2
Refer to the pile shown in Figure P9.1. Estimate the side resistance Qs by Using Eqs. (9.40) through (9.42). Use K = 1.5 and Coyle and Castello’s method [Eq. (9.44)]
Consider a 15 m long concrete pile with a cross section of 0.45 m x 0.45 m fully embedded in sand.For the sand, unit weight, γ = 17 kN/m3 and soil friction angle, ϕ’ = 35o. Estimate the ultimate point??? with each of the following:1.1 Meyerhof’s method (Ans: 1014 kN)1.2 Vesic’s method (Ans: 1754 kN)1.3 Coyle and Castello’s method (Ans: 2479 kN)
Please help me solve3.8 The soil profi le at a site for an offshore structure is shown in Figure P13.8. The height of the pile above the sand surface is 15 m. Determine the allowable load for a driven closed-ended pipe pile with diameter 1.25 m and embedded 10 m into the stiff clay. A factor of safety of 2 is required
Determine the ultimate load capacity of a circular pile with diameter D = 20 cm installed in asaturated soft clay. The pile is embedded 10 m into the ground. According to measurements, thesoil exhibits an undrained shear strength according to the linear relationship: Su = 2+1.6z, wherez is the depth in meters and Su is the undrained shear strength in kPa. The soil's unit weight canbe assumed as 18 kN/m3

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