GONG Wen-hui, WANG Ping. Simulation analysis of elastoplastic FEM for stability of bedding rock cutting slope[J]. 2006, (7): 1114-1118.DOI: 10.16285/j.rsm.2006.07.019.
Based on perfectly elastoplastic constitutive model and Drucker-Prager yield criterion
the rock mechanics theory
the numerical simulation technique of FEM and the strength reduction principle are used to simulate and analyze the stress
displacement
friction on contact surface and the stability of bedding rock cutting slope in different excavated stages.The analysis indicates that the stress field
displacement field
contact status and stability of the bedding rock cutting slope are obviously influenced by excavating effect.On each excavated face
the horizontal displacement near the slope toe is the biggest;the most dangerous contact surface focuses on the excavated slope toe where the abscission destruction firstly occurs.Also
the safety factor of the slope gets lower gradually as the slope is excavated deeper.