INVERSE ANALYSIS OF CONSOLIDATION FOR ACCURATE PREDICTION OF HORIZONTAL DISPLACEMENT

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  • 水平変位の高精度な予測を目的とした圧密問題の逆解析

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This paper presents the long-term prediction of the ground behavior, including secondary consolidation via the particle filter, using model test results. There have been some difficulties in evaluating the behavior accurately, such as two-dimensional displacements, because an unsuitable value for Poisson's ratio and the constitutive model are generally employed for consolidation problems. This paper identifies Poisson's ratio in addition to the compression index, the permeability, the initial volumetric strain, and the secondary compression index, and adopts the modified Cam-clay model, considering anisotropy, to overcome the problem, i.e. the accurate evaluation of the two-dimensional displacement. The prediction is performed using the identified parameters, and numerical examples of accurate predictions of the ground behavior are shown.

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