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An Analysis of the Sensitivity of Slope Displacement Field to Elastic Modulus and Poisson’s Ratio
Pages: 40-43+66
Year: Issue:  3
Journal: Journal of Wuyi University(Natural Science Edition)

Keyword:  sensitivity analyseselastic modulusPoisson’s ratiosoil slopesdisplacement fields;
Abstract: This paper introduces the principle of using the ABAQUS total displacement method to resolve the sensitivity analysis where the design variables are the material parameters, constructs homogeneous and non-homogenous models for single-stage slopes using the Kulun model as the constitutive Moore, and analyses the sensitivity of slopes’ horizontal and vertical displacement fields to elastic modulus and the Poisson’s ratio. The results show that the positions where single-stage horizontal and vertical displacement fields are most sensitive to material parameters are located near the shear crack at the foot of the slope and the slip surface at the top; compared with the elastic modulus, the slope displacement field is more sensitive to Poisson’s ratio; and compared with vertical displacement fields, the horizontal displacement field is more sensitive to the material parameters.
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