Answered: Determine the maximum load that can be…

Determine the maximum load that can be allowed on a 45cm x 45cm diameter bored pile shown in Figure-1 allowing a factor of safety of 3. Take SPT value at the bottom of pile 40.

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 18.14P: A steel pile (H-section; HP 360 1.491; see Table 18.1) is driven into a layer of sandstone The...

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Concept explainers

Load and resistance factor design

Load and resistance factors design (LRFD), also known as Limit state design (LSD), refers to the design method used in building engineering. A boundary condition is a condition of a structure where it can no longer meet the relevant design requirements. The condition may refer to the load level or other actions on the structure, while the terms refer to the integrity of the structure, suitability for use, durability, or other design requirements. A structure designed for LRFD is limited to keeping track of all possible actions during its design time and is always ready for use, with the appropriate level of reliability in each boundary condition. LRFD-based construction codes clearly define the appropriate levels of reliability in their instructions.

Question

3. Determine the maximum load that can be allowed on a 45cm x 45cm diameter bored pile
shown in Figure-1 allowing a factor of safety of 3. Take SPT value at the bottom of pile 40.
Sand
y = 17.0 kN/m
o' = 31°
8 m
Sand
10 m
Ysat = 19.0 kN/m³
O' = 33°
Figure - 1

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