Japan Society of Civil Engineers 2019 Annual Meeting

Presentation information

第III部門

砂の変形・強度

Thu. Sep 5, 2019 10:25 AM - 11:55 AM III-2 (幸町北4号館 412講義室)

座長:橋本 隆雄(国士舘大学)

[III-308] Influence of fines generated by particle crashing on undrained behavior
of sand

*水野 光揮1、吉嶺 充俊1 (1. 首都大学東京)

Keywords:sand, steady state, particle crashing

Particle crashing during shear has a significant impact on the steady state of sand. the undrained shear behavior without particle crushing was predicted using the existing sand constitutive law, and compared with the case with particle crushing. As a result, the amount of fine particle generation due to particle crushing during shear is in a linear relationship with work per unit volume for vertical deformation. From the comparison of constitutive law, it can be quantitatively expressed that the shear resistance during undrained shear deformation and the strength at steady state decrease by particle crushing.

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