A 2m x 4m rectangular footing has to carry a uniformly distributed load of 120 kPa. As per the 2:1 dispersion method of stress distribution, What is the increment in vertical stress (kPa) at a depth of 2 m below the footing?

A 2m x 4m rectangular footing has to carry a uniformly distributed load of 120 kPa. As per the 2:1 dispersion method of stress distribution, What is the increment in vertical stress (kPa) at a depth of 2 m below the footing?

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter8: Stresses In A Soil Mass

Section: Chapter Questions

Problem 8.22P: A flexible circular footing of radius R carries a uniform pressure q. Find the depth (in terms of R)...

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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

A 2m x 4m rectangular footing has to carry a uniformly distributed load of 120 kPa.
As
per the 2:1 dispersion method of stress distribution, What is the increment in vertical stress (kPa)
at a depth of 2 m below the footing?

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A 2 m×4 m rectangular footing has to carry a uniformly distributed load of 120 kPa. As per the 2 :1 dispersion method of stress distribution, the increment in vertical stress (in kPa) at a depth of 2 m below the footing is