Determine the ultimate load capacity of a circular pile with diameter D = 20 cm installed in a saturated soft clay. The pile is embedded 10 m into the ground. According to measurements, the soil exhibits an undrained shear strength according to the linear relationship: Su = 2+1.6z, where z is the depth in meters and Su is the undrained shear strength in kPa. The soil's unit weight can be assumed as 18 kN/m3

Determine the ultimate load capacity of a circular pile with diameter D = 20 cm installed in a saturated soft clay. The pile is embedded 10 m into the ground. According to measurements, the soil exhibits an undrained shear strength according to the linear relationship: Su = 2+1.6z, where z is the depth in meters and Su is the undrained shear strength in kPa. The soil's unit weight can be assumed as 18 kN/m3

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 18.5P: In Problem 18.4, find the maximum bending moment in the sheet pile and determine the required...

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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.
Example (3): A site consist of two layers of clay. The upper layer is 8m- thick and has an undrained shear strength of 80 kN/m². The lower layer is a thick layer which has an undrained shear strength of 120 kN/m². Assume • Top 1m of pile doesn't support load. • FS 1.5 and FS₁=3 = (A) Estimate the working load of the pie with the following: D=1.5m, Ds=4.5 m, L=27m Bell length is 3m. (B)Determine the length of 600mm- diameter of driven pile to support a working load of 1200 kN.
A group of nine piles 300 mm in diameter is driven into a clay layer 16 m thick with rock below the clay layer. The pile is 9 m long and spaced 500 mm centres. The clay has the following properties: - an undrained shear strength of 100 kN/m2, adhesion coefficient α=0.5, Eu =40 MN/m2 and mv = 0.09 m2/MN. The pore water coefficient A= 0.38. The dead load carried by the pile group is 2300 kN and the live load is 500 kN. Verify if the ultimate and serviceability limit states for an allowable settlement of 30 mm are satisfied.
A braced sheet pile to be used in an open cut in clay is shown in the figure. Struts are spaced longitudinally at 2.5 m center to center spacing. Unit weight of clay is 20 kN/cu.m and an unconfined compressive strength of 100 kN/m2. Determine the section modulus of wale at B if the allowable bending stress is 0.6 Fy where Fy = 248 MPa
12.20 A 600 mm diameter and 25 m long driven concrete pile car- ries 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: E = 25 MN/m², Ep = 30,000 MN/m², and μ = 0.2
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A square concrete pile of 10 m length is driven into a deep layer of uniform homogeneous clay. The average unconfined compressive strength of the clay, determined through laboratory tests on undisturbed samples extracted from the clay layer, is 100 kPa. If the ultimate compressive load capacity of the driven pile is 632 kN, the required width of the pile is mm. (in integer) (Bearing capacity factor Nc = 9; adhesion factor a = 0.7)
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