Publications Details

New method for true-triaxial rock testing

Wawersik, W.R.; Carlson, L.W.; Holcomb, D.J.; Williams, R.J.

Two new and related true-triaxial apparatus are described that make use of conventional triaxial pressure vessles in combination with specially configured, high-pressure hydraulic jacks inside these vessels. The development combines advantages not found in existing facilities, including a compact design, pore-pressure and flow-through capabilities, the ability to attain high principal stresses and principal stress differences, direct access to parts of the sample, and provisions to go to relatively large deformations without developing serious stress field inhomogeneities.