A STUDY ABOUT FACTORS WHICH CAUSED EMBANKMENT DAMAGES BASED ON THE 2011 Off THE PACIFIC COAST OF TOHOKU EARTHQUAKE

Abstract

 A lot of railway embankments suffered to the collapse, crack among wide area in East Japan, by the 2011 off the Pacific Coast of Tohoku Earthquake. All railway embankment maintained by East Japan 8 Railway Company within much damaged area are investigated for categorizing with height, gradiation, geomorphologic classification, and so on. The result of this investigation is databased. And the influence level of each category is analyzed by assuming weight points and verification with the database.
 This study says that the difference between damaged and no-damaged embankment has a strong correlation to geomorphologic classification, emvironment around the site, height of embankment, past-damaged, and so on.