@article{Tomohide Takeyama_Kazuya Honda_Shinya Tachibana_Atsushi Iizuka_2021, title={A PROCEDURE TO DETERMINE MATERIAL PARAMETERS BASED ON BOREHOLE DATA IN DYNAMIC ANALYSIS}, volume={21}, url={https://geomatejournal.com/geomate/article/view/57}, abstractNote={<p><strong>Recently, the occurrence of large earthquakes has become a concern in Japan, prompting the need for a numerical method that can accurately predict real phenomena, such as the elastoplastic soil-water coupled finite element method. Because the elastoplastic constitutive model requires many material parameters, various soil tests and specialized knowledge are needed to determine these material parameters. In this study, a new method was proposed to determine the material parameters from the limited ground information obtained by borehole inspections and the method was validated by comparing the numerical results with monitored seismic behavior. One-dimensional seismic analyses were conducted using the material parameters estimated from borehole data near the target sites. It was confirmed that the amplitude and predominant period obtained by numerical simulation were consistent with the monitored data. As a result, it was found that the dynamic numerical result was more consistent with the monitored data when the compression index was set to be larger than that in the static analysis.</strong></p>}, number={85}, journal={GEOMATE Journal}, author={Tomohide Takeyama and Kazuya Honda and Shinya Tachibana and Atsushi Iizuka}, year={2021}, month={Sep.}, pages={1–9} }