Japan Society of Civil Engineers 2019 Annual Meeting

Presentation information

第III部門

土の動的性質

Thu. Sep 5, 2019 8:40 AM - 10:10 AM III-2 (幸町北4号館 412講義室)

座長:宮本 順司(東洋建設)

[III-301] Development of a cubical soil box equipped with multidirectinal disk transducer

*川口 勇一郎1、大坪 正英1、Dutta Tanu Troyee 1、桑野 玲子1 (1. 東京大学生産技術研究所)

Keywords:Elastic wave velocity, Model test, Disk transducer, Inherent Anisotropy, Particle shape, Dynamic measurement

Soil stiffnesses exhibit inherent anisotropy. However, measuring all soil stiffness parameters accurately is still a challenge for experimental researchers; thus, the mechanism has not been fully understood. The present research has developed a cubical soil box equipped with multidirectional disk transducers by which both P- and S-waves can be generated and received to evaluate small-strain soil stiffnesses. This contribution presents design configuration of the equipment, and reports experimental results on spherical glass beads and Toyoura sand specimens.

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