... simulation isrm international symposium asian rock mechanics symposium 29 partial factor strength variability frictional strength probability strength component cohesion Diederich stress path mobilization reliability initiation threshold 10th Asian Rock Mechanics Symposium (ARMS10...

... different with the single stage triaxial test. It is suspected that the second stage and the next stage have been affected by the loading path (stress path) of previous stage. This research was carried out in laboratory to investigate whether different stress paths will give significant influence...

... under unloading action. With respect to these characteristics, in order to simulate the practical stress condition changes under excavation of underground rock mass, four different stress paths that are these of regular triaxial test under high confining pressure, unloading high confining pressure...

..., combining the strength criterion of Hoek-Brown with the strength of rock, we could not only simply determine whether the rock sample fails or not, but we could also evaluate the type of rockburst relying upon stress path. Additionally, the sources of driving force of strain rockburst were analyzed...

... expressions of models can be avoided and the process to determine the model parameters is greatly simplified. In addition, the ANN model can easily reflect the influence of stress path and also has strong fault-tolerance function. I. INTRODUCTION Now many investigators proposed more than one hundred...