Organized Sessions

Organized session » OS3 How should we deal with the frequent damage to embankments during earthquakes?

How should we deal with the frequent damage to embankments during earthquakes? (2)

Thu. Nov 23, 2023 10:55 AM - 12:25 PM G415 (PACIFICO Yokohama North, 4F)

Chairperson: Yousuke Ohya (National Institute of Maritime, Port and Aviation Technology)

In recent years, earthquake damage to road embankments, railway embankments, residential land developments, river embankments, agricultural reservoir embankments, and tailings dams has been frequent. Reasons include the lack of seismic design until recently and the weakening of fill materials, retaining walls, and drainage pipes after construction due to aging. In response, seismic design and inspections have recently been undertaken and countermeasures have been implemented. This session aims to discuss a wide range of topics, from clarification of the seismic behavior of embankments to investigation, design, inspection, and countermeasure methods.

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10:55 AM - 11:07 AM

[Day1-G415-08] Centrifuge Model Tests Concerning Effect of Vertical Drains as Liquefaction Measures to Reduce Embankment Settlement against Large Earthquake Ground Motion

*Masanori Ishihara¹, Ryo Maruta¹, Yudai Aoyagi¹, Tetsuya Sasaki¹ (1. Public Works Research Institute)

11:08 AM - 11:20 AM

[Day1-G415-09] Case Studies of Earthquake Resistance Measures and Analyses by Compaction Method for River Embankments

*Kenji Harada¹, Tomoyuki Ideno¹ (1. Fudo Tetra Corporation)

11:21 AM - 11:33 AM

[Day1-G415-10] Effects of duration and frequency characteristics of input earthquake motions on seismic damage of river levees

*Kentaro Nakai¹, Toshihiro Noda¹ (1. Nagoya University)

11:34 AM - 11:46 AM

[Day1-G415-11] Investigation about effect of connection of soil nails with slope protection works for seismic reinforcement of embankment

*Takaki Matsumaru¹, Susumu Nakajima¹, Yuki Kurakami¹ (1. Railway Technical Research Institute)

11:47 AM - 11:59 AM

[Day1-G415-12] Example of embankment material evaluation and earthquake resistance performance evaluation for level 2 seismic motion

*Tomohito Hagiwara¹, Hideo Nomura¹, Yuuichi Oto¹, Hisashi Igarashi¹ (1. Kiso-Jiban Consultants Co.,Ltd)

12:00 PM - 12:12 PM

[Day1-G415-13] Damage And Its Characteristics Of Soma Port Due To The Earthquake Off The Coast Of Fukushima Prefecture in 2022

*Noriaki Sento¹ (1. Nihon University)

12:13 PM - 12:25 PM

[Day1-G415-14] Residual Deformation Patterns of Sheet Pile Quay Walls after the Fukushima-Oki Earthquake of March 16, 2022

*Yousuke Ohya¹, Atsushi Nozu¹, Eiji Kohama¹, Masahiro Takenobu², Yosuke Nagasaka¹ (1. National Institute of Maritime, Port and Aviation Technology, 2. National Institute for Land and Infrastructure Management)

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