Improvement and Construction of a Biaxial Plane - Strain Apparatus for Rock
HUANG Gun , YIN Guang - zhi, LI Dong - wei
DOI:10.11835/j.issn.1674-4764.2006.02.013
Received December 04, 2005,Revised December 04, 2005, Accepted , Available online July 01, 2015
Volume ,2006,Pages 43-
- Abstract
A biaxial plane-strain apparatus for investigating the deformation and failure features of rock is improved and constructed on a passive stiff-frame concept;furthermore,a new device inducing confinement on both sides of the prism specimen was designed and built,which can not only impose varying confining pressure on the specimen,but dynamically monitor the change in confinement due to deformation of the specimen during testing.Theoretical analysis and test results show that for rock specimens with Young's modulus below 14.16GPa,the apparatus can provide an acceptable plane-strain condition and be of practical use.