A steel pipe pile of 61 cm outside diameter with a wall thickness of 2.5 cm is driven into loose sand(D, = 30%) under submerged conditions to a depth of 20 m. The submerged unit weight of the soilis 8.75 kN/m' and the angle of internal triction is 33 The El value of the pile is 4 35 x 10 kg-em(4.35 x 10 MN-m). Compute the ground line deflection of the pile under a lateral load of 268 kNat ground level under a free head condition using the non-dimensional parameters of Matlock andReese. The n, value from Fig. 163 for D, = 30% is 6 MN/m' for a submerged condition.%3D

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A steel pipe pile of 61 cm outside diameter with a wall thickness of 2.5 cm is driven into loose sand (D, = 30% ) under submerged conditions to a depth of 20 m. The submerged unit weight of the soi! is 8.75 kN/m'and the angle of internal friction is 33. The El value of the pile is 4 35 x 10 kg-cm (4.35 x 10 MN-m). Compute the ground line deflection of the pile under a lateral load of 268 kN at ground level under a free head condition using the non-dimensional parameters of Matlock and Reese. The n, value from Fig. 163 for D, = 30% is 6 MN/m' for a submerged condition.

A steel pipe pile of 61 cm outside diameter with a wall thickness of 2.5 cm is driven into loose sand (D, = 30% ) under submerged conditions to a depth of 20 m. The submerged unit weight of the soi! is 8.75 kN/m'and the angle of internal friction is 33. The El value of the pile is 4 35 x 10 kg-cm (4.35 x 10 MN-m). Compute the ground line deflection of the pile under a lateral load of 268 kN at ground level under a free head condition using the non-dimensional parameters of Matlock and Reese. The n, value from Fig. 163 for D, = 30% is 6 MN/m' for a submerged condition.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.

Question

A steel pipe pile of 61 cm outside diameter with a wall thickness of 2.5 cm is driven into loose sand
(D, = 30%) under submerged conditions to a depth of 20 m. The submerged unit weight of the soil
is 8.75 kN/m' and the angle of internal triction is 33 The El value of the pile is 4 35 x 10 kg-em
(4.35 x 10 MN-m). Compute the ground line deflection of the pile under a lateral load of 268 kN
at ground level under a free head condition using the non-dimensional parameters of Matlock and
Reese. The n, value from Fig. 163 for D, = 30% is 6 MN/m' for a submerged condition.
%3D

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