The Foundation Liquefaction and Permanent Deformation Analysis of Diversion Dike for Nuclear Power Plant

Abstract

In seismic response analysis, total stress method is adopted mostly, but variation of the pore water pressure and the development process of the liquefaction are not considered in this method. Based on the dynamic analysis of two-dimensional effective stress proposed by Zhu-jiang Shen, combined with dynamic consolidation theory of Biot, the foundation liquefaction analysis of the diversion dike for nuclear power plant is performed by using effective stress dynamic analysis program, the liquefied range is given, as well as the permanent deformation. The obtained law can provide theoretical guidance for the similar project.

Propagation Characteristics of Seismic Waves Taking Stratigraphic Composition into Consideration

“…Every year there are significant damages caused by the earthquake all over the world, especially the liquefaction damages during the earthquake, which would result in the decrease of bearing capacity, uneven settlement of the ground etc. Many researchers have devoted their efforts to predict the seismic responses of the upper structures [1,2,3,4]. However, those analyses paid attention on the dynamic responses of the structures with given seismic waves observed at the ground surface and there is nearly no glimpse about the propagation of seismic waves from underground engineering bedrock to the ground surface.…”

Seismic Stability Analysis of Light-Weight Column Considering Depth of Liquefiable Layer

“…Moreover, based on above methods, what can be determined is only whether the liquefaction occurs or not, while no prediction about the amount of deformation of grounds or structures that will occur during and after an earthquake is proposed yet. Therefore, in recent years, simulation using effective stress analysis has been prevalent for important structures in particular [2,3,4,5].…”