米山粘性土ふるい祭り2018（平成30年5月）

Nagaoka Univ. of Tech.
Geotechnical Eng. Lab.

米山粘性土ふるい祭り2018（平成30年5月）†

　2018年5月24日に実験で使用している粘性土のふるい作業を，ひっさしぶりに行いました．この作業では，研究のために乾燥した試料を準備することを目的としています．この作業を行うことで，本格的に実験がスタートします．良い研究成果が残せるよう祈る毎日です．

　Yoneyama silt is a kind of lateritic soil and located in Nigata prefecture, Japan. This sandy silt is usually employed as a cohesive soil in some saturated and unsaturated research (1,2,3,4). After testing, the soil becomes hard and dry blocks. We conducted to crush these blocks in 2018, May, 24th. The weather was a little bit cloudy in the morning and sunny in the afternoon. We hope that some new great study can be carried out by using this useful Yoneyama_clay in future.

No.	米山粘性土を用いた研究成果の一例
1	Mechanical properties of saturated and unsaturated cohesive soils with stress-induced anisotropy. H. Toyota, S. Takada, and A. Susami. Géotechnique
2	Effects of fabric anisotropy induced by anisotropic consolidation on strength properties of saturated and unsaturated cohesive soils. Ayaka SUSAMI, Hirofumi TOYOTA, Susumu TAKADA. June 2015. Japanese Geotechnical Journal
3	Anisotropy of Undrained Shear Strength Induced by K0 Consolidation and Swelling in Cohesive Soils. H. Toyota, A. Susami. And S. Takada. August 2014. International Journal of Geomechanics 14(4):
4	Ring shear tests to evaluate strength parameters in various remoulded soils. H. TOYOTA, K. NAKAMURA, M. SUGIMOTO, and N. SAKAI. Géotechnique 2009 59:8, 649-659