Ex3: 50, 100, and 150 kN point loads are applied at Points A, B., and C, respectively,on the ground surface as seen in the figure. Compute the vertical stress incrementunder Point D down to the depth z = 20 m.7.5 m150 kN50 kN2 m5 m(Plane view)100 kN3 m

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Answered: Compute the vertical stress increment

Engineering

Civil Engineering

Compute the vertical stress increment

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter10: Stresses In A Soil Mass

Section: Chapter Questions

Problem 10.9P: For the same line loads given in Problem 10.8, determine the vertical stress increase, z, at a point...

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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

Ex3: 50, 100, and 150 kN point loads are applied at Points A, B., and C, respectively,
on the ground surface as seen in the figure. Compute the vertical stress increment
under Point D down to the depth z = 20 m.
7.5 m
150 kN
50 kN
2 m
5 m
(Plane view)
100 kN
3 m

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