soil stresses

soil stresses - Soil Stresses Foundation Design CE 482 Fall...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Soil Stresses Foundation Design CE 482 Fall 2007
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Geostatic Stresses Ground surface is horizontal Homogeneous strata σ v = z γ σ v = Σγ Δ z σ h = Κσ v
Background image of page 2
Stresses from Applied Loads From theory of elasticity Stress ( σ ) is proportional to strain ( ε ) Based on assumptions of homogeneity and isotropy Graphical form of elastic solution for various loading cases (Boussinesq, Westergaard, Newmark) Pressure (stress) bulbs
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Principal Stresses At any stressed point, three orthogonal planes exist on which there are zero shear stresses Normal stresses that act on these planes are called the principal stresses The largest stress is called the major principal stress, σ 1 The smallest is called the minor principal stress, σ 3 The third is called the intermediate principal stress, σ 2
Background image of page 4
For geostatic condition, the horizontal plane through a point is a principal plane All vertical planes through the point are also principal planes When K < 1, σ v = σ 1 , σ h = σ 3 , and
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/07/2009 for the course CE 482 at USC.

Page1 / 19

soil stresses - Soil Stresses Foundation Design CE 482 Fall...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online