THE REAL IN TIME CT MONITORING OF THE MESO- DAMAGE EVOLUTION LAW OF SANDSTONE UNDER TRIAXIAL COMPRESSION

摘要

The real in time computerized tomography (CT) testing of the meso-damage propaga- tion law of the whole sandstone failure process under triaxial compression us- ing the newest specified triaxial loading equipment corresponding to the CT machine. Through the CT scanning, the clear CT images which include from the microcracks compressed stage to Growth stage, bifurcation stage, development stage, crack fracture stage, the rock sample fail- Ure until to unloading stage in the different stress states were obtained. The CT values, CT im- Ages and the other data have been analyzed.