ANALYSING ROCK MASS MECHANICAL PARAMETERS OF A TUNNEL WITH 3DEC

Base on the geological model in a Highway tunnel, the size effect and the exterior loading direction effect of rock mass in the tunnel are analyzed with 3DEC. Uniaxial compression test and triaxial compression test are simulated to calculate mechanical parameters of rock mass. The calculating mechanical parameters of rock mass are the integrated result of the rock, structures and surroundings. This method is a paradigm of calculation mechanical parameters of rock mass with 3DEC.