A Large-Scale Model Experiment on the Effect of Sheet Pile Wall on Reducing the Damage of Oil Tank Due to Liquefaction

抄録

After the Alaska Earthquake and the Niigata Earthquake in 1964, many researches have been conducted on the liquefaction and its caused damage. In the 2011 Great East Japan Earthquake, liquefaction of sandy ground was observed in wide areas. The authors have built a large-soil tank for the experiment to develop effective liquefaction countermeasures. The soil box can cause and keep the liquefaction continuously by injecting the water flow from the bottom of the model ground. This paper introduces this experimental apparatus and reports one of the test results on the behaviour of the oil tanks during liquefaction and the effectiveness of the measures by using sheet pile walls.