令和4年度土木学会全国大会第77回年次学術講演会
2022年9月15日〜9月16日京都大学吉田キャンパス
令和4年度土木学会全国大会第77回年次学術講演会
2022年9月15日〜9月16日京都大学吉田キャンパス
[CS2-06]EFFECT OF PRINCIPAL STRESS ROTATION ON SHEAR MODULUS Gmax OF GAP-GRADED SOIL SUBJECTED TO INTERNAL EROSION
*Chitravel Sanjei Sanjei1, Masahide Otsubo1, Reiko Kuwano1(1. University of Tokyo)
An experimental investigation was conducted to study the post-erosion shear modulus of gap-graded soil under principal stress rotation (PSR). After a whole cycle, induced post-erosion shear strain is increased while axial strain decreased due to seepage flow accompanied by fine removal. The reduction of the small strain shear modulus might be due to the inefficacy of the reinforced soil skeleton established by the erosion against shear loading.