A new residence has a column load of 24000 kN. This is supported via a 3m by 4mrectangular footing whose bottom is 1m below the surface of this homogenous lateritic soillayer. 5m below the footing, there is a 6m thick clay layer. The clay layer has a unit weight of18.0 kN/m³, void ratio (e) of 0.67, and compressibility index (Cc) of 0.237. The lateritic soilhas a unit rate of 19 kN/m³Find the vertical stress increment at the depth of Sm below the centre and corner ofthe loaded area.

The increment in stress will be due to applied load

Answered: Find the vertical stress increment at…

Engineering

Civil Engineering

Find the vertical stress increment at the depth of 5m below the centre and corner of the loaded area.

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter10: Mat Foundations

Section: Chapter Questions

Problem 10.1P: Refer to the rectangular combined footing in Figure 10.1, with Q1 = 100 kip and Q2 = 150 kip. The...

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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 new residence has a column load of 24000 kN. This is supported via a 3m by 4m
rectangular footing whose bottom is 1m below the surface of this homogenous lateritic soil
layer. 5m below the footing, there is a 6m thick clay layer. The clay layer has a unit weight of
18.0 kN/m³, void ratio (e) of 0.67, and compressibility index (Cc) of 0.237. The lateritic soil
has a unit rate of 19 kN/m³
Find the vertical stress increment at the depth of Sm below the centre and corner of
the loaded area.

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