CE2004 shear strength_handout

CE2004 shear strength_handout - Stress and Shear Strength...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

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

Unformatted text preview: Stress and Shear Strength CE2004 What we’ll cover Stress in soils Combined stresses Shear strength Measurement Mohr’s Circle Stress in soil: components Load Stress on a plane = Normal stress σ + Shear stress τ σ and τ vary depending on the plane being considered Can use this approach to identify ……………………..within soil On what plane will σ be maximum and τ be zero Planes are perpendicular Principal stresses working on planes σ 1 σ 2 σ 3 Normally taken as equal to σ 1 or σ 3 ……………. …………… Determining σ and τ for different planes σ 1 σ 1 σ 3 σ 3 Take area of this plane as unity (1) θ F n = σ n x area = σ n x 1 = σ n θ Area = 1 x sin θ Area = 1 x cos θ F 1 = σ 1 x area = σ 1 cos θ F 3 = σ 3 x area = σ 3 sin θ τ n = τ n x1 Determining stress on a random plane where principal stresses are known θ Shear force on plane τ n τ n = σ 1 cos θ sin θ – σ 3 sin θ cos θ = ( σ 1- σ 3 ) sin θ cos θ Maximum shear occurs on plane at 45° from principal plane with magnitude: τ n = ½( σ 1- σ 3 ) Soil resistance to shear...
View Full Document

This note was uploaded on 11/23/2011 for the course ENGINEERIN H203 taught by Professor Michael during the Spring '09 term at Brunel University.

Page1 / 24

CE2004 shear strength_handout - Stress and Shear Strength...

This preview shows document pages 1 - 9. Sign up to view the full document.

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