The simulation of stage excavation of the high slope of Chang-Zhang Expressway is carried out by using two-dimensional elastoplastic finite element method, considering the influence of blasting and rock joint. The rock mass's deformation, stresses and yielding state in the excavation process are analyzed respectively. The integral safety of the high slope is discussed by using the method of lowing material's strength safety factor and in light of the yielding rate of the slope's rock mass element and variation of displacements of the key parts. Through researching the important slope K123, a c...
