Evaluation of liquefication potential of fine sand in the northern coastal area based on dynamic triaxial test

Abstract

Earthquake is a natural disaster that causes significant damage to humans and this phenomenon occurs more frequently in our country. Research on earthquakes and their effects such as soil liquefaction is an issue of increasing concern. The coastal area of the North is currently having many infrastructure projects being built, requiring careful assessment of possible risks. This paper evaluates the liquefaction potential of fine sand exploited in the coastal area of the North through cylcic triaxial test, this is a method commonly used over the world for studying soil liquefaction, however it is not yet widely used in Vietnam. The results show that fine sand in this area can be liquefied, the degree of liquefaction depends on various factors such as consolidation stress, relative density or cyclic stress ratio.

Keywords: liquefaction; consolidation stress; relative density; cyclic stress ratio; cyclic triaxial test.