Evaluation of dynamic landslide based on observation records of moderate earthquakes

2014 Fiscal Year Final Research Report

• Project/Area Number: 25820220
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Geotechnical engineering
• Research Institution: Osaka University
• Principal Investigator: HATA Yoshiya 大阪大学, 工学(系)研究科(研究院), 助教 (80463561)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 地震観測 / 常時微動計測 / 地震地すべり / 宅地造成斜面 / サイト特性 / 強震動 / 耐震性評価 / 2011年東北地方太平洋沖地震

Outline of Final Research Achievements

During the 2011 off the Pacific coast of Tohoku Earthquake and so on, a lot of serious damage occurred to embankments in Japan. In this study, to evaluate ground motions at the damage sites, temporary aftershock observation and microtremor measurement were conducted at the sites. The result indicates that the ground motions at the damage sites were similar or were not similar to those at either of the strong motions stations. The waveforms were estimated based on the site-effect substitution method or the characterized source fault model. The estimated waveforms and related discussion will be useful in future study of seismic performance of fill slope.

Free Research Field

地盤地震工学