Abstract
Huge inland earthquakes often cause fault rupture hazards. The mechanism of surface fault rupturing is significantly affected by the features of fault movements at the basement and the characteristics of unconsolidated surface layers, and very little has been elucidated for the cases of strike-slip faults. In this study, a series of model tests of strike-slip faulting are conducted using X-ray CT technique to observe shear bands in the model ground. Typical development processes, shapes and sizes of shear bands forming typical flower structures are investigated.
