A rectangular foundation 6 x 3m carries a uniform pressure of 300 kN/m2 near the surface of a soil mass. Determine the vertical stress at a depth of 3m below a point (A) on the centre line 1.5m outside the long edge of the foundation, as shown below. 3.0 m 1.5 m 6.0 m 300 kN/m² A

A rectangular foundation 6 x 3m carries a uniform pressure of 300 kN/m2 near the surface of a soil mass. Determine the vertical stress at a depth of 3m below a point (A) on the centre line 1.5m outside the long edge of the foundation, as shown below. 3.0 m 1.5 m 6.0 m 300 kN/m² A

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

Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.

Question

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A rectangular foundation 6 x 3m carries a uniform
pressure of 300 kN/m2 near the surface of a soil
mass. Determine the vertical stress at a depth of
3m below a point (A) on the centre line 1.5m
outside the long edge of the foundation, as shown
below.
3.0 m
1.5 m
6.0 m
300 kN/m²
A

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