EFFECTS OF LATTICED WALLS AND DRAINS AGAINST LIQUEFACTION OF GROUNDS EVALUATED BY 3D DYNAMIC EFFECTIVE STRESS ANALYSIS

Abstract

 The 2011 East Japan earthquake induced widespread liquefaction not only in Tokyo bay area but also in inland area of Kanto region, which damaged numerous residential houses and public buildings. A research project was conducted to develop the latticed walls and drains and their combination, which can be installed as measures to mitigate liquefaction of grounds of existed residential houses and buildings. This paper reports the results of three-dimensional dynamic effective stress analyses for reproducing the dynamic centrifugal tests, and parametric studies about the spacing of latticed walls combined with drains.