ABSTRACT

The present study aims at developing an analytical method to predict liquefaction-induced large deformation of ground and earth structures. This aim was firstly facilitated by examining earthquake-induced damages and, secondly, running shaking-table model tests. Consequently, an important finding was made of characteristic modes of deformation which later made the analysis simple and efficient. Furthermore, model tests as well as laboratory shear tests were conducted to find the rate-dependent nature of liquefied sand undergoing large deformation. Finally, a new numerical method was developed to conduct the deformation analysis as intended in a dynamic three-dimensional manner with large-displacement formulation. Example analyses are presented at the end of this text.