00317569

open access

Version of Record

ヒハイスイ センダン リレキ オ ウケタ スナ ノ コウフク オウリョク ト センダン オウリョク サヨウ ホウコウ トノ カンケイ

Yield stress varies with shear stress direction relative to soil fabric after undrained cyclic loading

Japanese (日本語)

神戸大学都市安全研究センター研究報告

6

73-79

神戸大学都市安全研究センター

2002-03

2007-04-13

This study deals with the yielding behavior of saturated sand duringliquefaction process. The acoustic emission, AE, measurement technique wasused to define the yielding stress of sand. A hollow cylinder torsionaltesting device-equipped with AE measurement was used to apply several cyclesof undrained shear stress history to a Silica sand, and then the change ofyielding stress after such undrained shear history was examined. Ourprevious studied on yielding behavior due to undrained cyclic shear using triaxial testing have indicated a similar trend as obtained from the hollowcylinder torsional device. However, when the direction of shearing relative to the bedding plane of soil fabric is changed, a completely differentyielding behavior was obtained as compared with the previous result from the triaxial test results. This paper discusses the yield behavior of saturatedsand with undrained cyclic shear history, and examines the changes of yieldstress due to the changes of shear stress direction relative to the beddingplane of soil fabric.

紀要論文