New problem on environmental geotechnics derived from site investigation of disaster area damaged by the 2011 off the Pacific coast of Tohoku Earthquake

Abstract

Ibaraki University, College of Engineering at Hitachi-city, Ibaraki has had a lot of damage due to 2011 off the Pacific coast of Tohoku Earthquake. The authors in Ibaraki University, Geotechnical laboratory have investigated the huge damage due to the above earthquake in Ibaraki prefecture and Iwaki-city, Fukushima. This article has reported the results of investigation about the huge damages. It also clarifys the problems on environmental geotechnics caused by 2011 off the Pacific coast of Tohoku Earthquake, and discusses the direction to solve geoenvironmental engineering issues by simple experiments and preconsideration.