Project(2006318802111) supported by West Traffic Construction Science and Technology of China;Project(2008yb004) supported by Excellent Doctorate Dissertations of Central South University, China; Project(2008G032-3) supported by Key Item of Science and Technology Research of Railway Ministry of China
Based on the upper bound limit analysis theorem and the shear strength reduction technique, the equation for expressing critical limit-equilibrium state was employed to define the safety factor of a given slope and it...