A 1.5 m x 2.0 m rectangular foundation is placed at 1.0 m depth in sand where angle (prime) phi = 40 and gamma = 18.5 kN/m3. Bedrock is present at 1.0 m below the foundation. Using Eq. (7.3), determine the ultimate bearing capacity of the foundation. RECTANGULAR FOUNDATION ON GRANULAR SOILNeglecting the depth factors, the ultimate bearing capacity of rough circular andrectangular foundations on a sand layer (c' = 0) with a rough rigid base located at ashallow depth can be given as1yBN F(7.3)

The ultimate bearing capacity of the foundation is the is the maximum value of the pressure which…

RECTANGULAR FOUNDATION ON GRANULAR SOIL Neglecting the depth factors, the ultimate bearing capacity of rough circular and rectangular foundations on a sand layer (c' = 0) with a rough rigid base located at a shallow depth can be given as 1 yBN F (7.3)

RECTANGULAR FOUNDATION ON GRANULAR SOIL Neglecting the depth factors, the ultimate bearing capacity of rough circular and rectangular foundations on a sand layer (c' = 0) with a rough rigid base located at a shallow depth can be given as 1 yBN F (7.3)

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Shallow Foundations: Ultimate Bearing Capacity

Section: Chapter Questions

Problem 6.2P: A 5.0 ft wide square footing is placed at 3.0 ft depth within the ground where c = 200 lb/ft2, =...

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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

A 1.5 m x 2.0 m rectangular foundation is placed at 1.0 m depth in sand where angle (prime) phi = 40 and gamma = 18.5 kN/m3. Bedrock is present at 1.0 m below the foundation. Using Eq. (7.3), determine the ultimate bearing capacity of the foundation.

RECTANGULAR FOUNDATION ON GRANULAR SOIL
Neglecting the depth factors, the ultimate bearing capacity of rough circular and
rectangular foundations on a sand layer (c' = 0) with a rough rigid base located at a
shallow depth can be given as
1
yBN F
(7.3)

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