81011472

open access

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弾塑性動的地盤モデルのためのパラメータの同定

Identification of parameters for elast-plastic dynamic ground model

Japanese (日本語)

神戸大学都市安全研究センター研究報告

19

85-100

神戸大学都市安全研究センター

2015-03

2019-05-30

Currently, in the static problems in the analysis of geotechnical engineering, it is possible to easily determine the parameters of the actual ground for the method of determining the parameter is established. However, the method of determining the parameters have not been established with respect to dynamic problems. Future be considered in the analysis of seismic response analysis and liquefaction will become increasingly important, there is an urgent need method of determining the parameters for performing dynamic analysis. In this study, we conducted the following two studies. The first is about the shear elastic behavior of unsaturated soil using a vendor element. If, through the shear modulus, and if itis possible to know the like suction and strength of the soil, and will be able to easily perform a future ground survey. Where it performs a bender element test in this study, shear modulus G and suction, and strive to understand the relationship between the intensity. The second is the identification of elastic -plastic parameters of Albany silica sand. In the field of geotechnical engineering, DACSAR is widely used as a finite element analysis. It is a sandy soil that can occur crushing of particles and, from the point, such as expression of dilatancy is different from the cohesive soil, currently, DACSAR program has not been applied to sandy soil. In this study, using the Albany silica sand, and performs triaxial shear test, using the parameters obtained from the result by performing a finite element analysis, to explore how to determine the parameters for performing dynamic analysis as well as, to explore the possibility of application to the sandy soil of DACSAR

弾塑性

紀要論文