74_CEG 4012 Notes Fall 2011 CEG 4012 Notes Fall 2011

74_CEG 4012 Notes Fall 2011 CEG 4012 Notes Fall 2011 - o...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
X15 Vane Shear Test (VST) Soundings o from Europe - measure undrained shear strength, Cu, of clays (ASTM 02573) (figure from Spangler and Handy, 1982) -- . . . \ J /1 I Shearing I surfaces I I I I I I I I I I I I I I \, --~--- ",/ ~r (a) (b) Principle of the vane shear test. (a) Shearing involves one vertical cylindrical surface and two horizontal end surfaces. (b) Twisting of the vane induces normal stress Un on the shearing surface.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: o Push vane into soil (possibly below bottom of borehole) and turn to measure torsional shear resistance. o Many different diameters, shapes, and lengths. o Primarily a soft clay tool - easily damaged. o Must be clean clay -sand does not fail as a cylinder because of bearing. o Miniature version sometimes used on samples and in lab....
View Full Document

This note was uploaded on 02/10/2012 for the course CEG 4012 taught by Professor Staff during the Fall '08 term at University of Florida.

Ask a homework question - tutors are online