CE%203400%20HW18-Solution%20Fall%202009

CE%203400%20HW18-Solution%20Fall%202009 - The University of...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
The University of Texas Department of Civil Engineering CE 357 - Homework No. 19 - SOLUTION Shear Strength of Sand Problem 1: tan τ=σ φ 2 N 1000 250 A2 σ= = = psi () 250 tan32 156 psi 22,500 psf τ= °= = Problem 2: Part (a) tan φ 50 tan39 40.5 psi Part (b) 2 13 3 1s i n tan 45 220 psi 21 s i n φ+ φ æö σ=σ + = ç÷ −φ èø 220 50 170 psi σ−σ= = You can also work this graphically as shown below: 100 200 300 100 200 0 0 39º σ 1 = 220 σ 3 = 50 σ τ Problem 3: tan φ 5500 arctan arctan 28.8 29 10000 τ æ ö φ == = ° ° ç ÷ σ è ø φ is low; I would expect this to be a (very) loose sand.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Problem 4: 2 13 3 1s i n
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/21/2010 for the course CE 3400 taught by Professor Brentrosenblad during the Fall '09 term at Missouri (Mizzou).

Page1 / 2

CE%203400%20HW18-Solution%20Fall%202009 - The University of...

This preview shows document pages 1 - 2. Sign up to view the full document.

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