FINITE ELEMNT ANALYSIS FOR EVALUATION OF SLOPE STABILITY INDUCED BY CUTTING

ABSTRACT: This paper concerned an evaluation of stability condition of slope. A slope stability induced by cutting was evaluated by a finite element analysis. The finite element analysis employed a constitutive model in which non-associated strain hardening-softening elasto-plastic material was assumed. In-site investigation was done by an inclinometer for the boreholes. For defining the soil stratum, a new data processing system was applied in this paper to generate a soil ground model, using many boring data. Soil samples were taken and subjected to geotechnical laboratory tests. A triaxial compression test ( CU) was performed to determine the shear strength. The numerical analysis did not consider the pore pressure, because no ground water was appeared in that area. The deformation obtained by the numerical analysis was close to the results of inclinometer of borehole observed by in-site investigation. The finite element analysis was able to predict the estimation of the slope stability induced by cutting