Confining pressure-dependency of bulk modulus of sand during liquefaction

Youngcheul Kwon, Takashi Asano, Noriaki Sento, Ryosuke Uzuoka, Motoki Kazama

研究成果: Article査読


In the elasto-plastic constitutive model, bulk modulus is one of the most important parameters to control the change of effective stress under undrained condition. However, the experimental research on bulk modulus of sand during liquefaction has not been conducted so far. In this paper, therefore, the bulk modulus of Toyoura sand was measured directly during liquefaction using a hollow cylindrical torsional shear testing device equipped with a volumetric strain control device. This study found that the bulk modulus corrected by membrane penetration effect during liquefaction process is constant under relatively high confining pressure, and that the stress dependency of bulk modulus during liquefaction process is different from that during swelling process.

ジャーナルStructural Engineering/Earthquake Engineering
出版ステータスPublished - 2006

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設
  • 人文科学(その他)
  • 地盤工学および土木地質学


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