Post-earthquake Investigation on Large-scale Highway Embankment Failures during the Recent Strong Earthquakes in Japan
The 2004 Niigataken-Chuetsu Earthquake, the 2007 Noto Hanto Earthquake and the 2008 Iwate-Miyagi Nairiku Earthquake in Japan have induced severe damages to highway systems and suspended the road traffic function for a long period. This paper focuses on earthquake-induced failures of some highway embankments constructed in mountainous terrain. Typical large-scale failures of highway embankment slopes during the above-mentioned earthquakes are described. They were characterized by four facts that 1) a slum-flow sliding with a deep slip surface was commonly observed failure mode, 2) the failed mass typically had a long runout distance more than 10m-20m, 3) the damages were concentrated on embankments constructed within colluvium-filled valley or on relately steep base rock slopes by cut-and -bank, and 4) the failures occurred on slopes with a height over 10m-15m.
Earthquake Road embankment Failure
Jingcai Jiang Susumu Nakano
Dept.of Ecosystem Design, Institute of Technology and Science, The Univ.of Tokushima, Japan
国际会议
The First Anniversary of Wenchuan Earthquake(纪念汶川地震一周年国际学术会议)
成都
英文
662-665
2009-05-10（万方平台首次上网日期，不代表论文的发表时间）