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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? (4)

Thu. Nov 23, 2023 3:40 PM - 5:10 PM G415 (PACIFICO Yokohama North, 4F)

Chairperson: Hirokazu Kadota (Pacific Consultants Co.,Ltd.)

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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3:40 PM - 3:52 PM

[Day1-G415-18] Technical Issues and the Role of Soil Quality Judges in the Project to Promote Earthquake Resistance of Residential Lots

*Fusao Rito¹ (1. OYO Corporation)

3:53 PM - 4:05 PM

[Day1-G415-19] A case study on reproducing the seismic residual deformation of residential land embankments using a simple stability computation based on the seismic coefficient method

*Hirokazu Kadota¹, Shigeru Satou¹, Tetsurou Watanabe¹ (1. Pacific Consultants Co.,Ltd.)

4:06 PM - 4:18 PM

[Day1-G415-20] Introduction of Safety Evaluation Method for Residential Land Development in Matsudo City

*Tsuyoshi Okishima¹, Yasunori Kobayashi², Yoshinari Kurashina², Masanori Ishitsuka², Shingo Sato¹, Syuhei Yamaguchi¹, Takahiro Yokota¹, Susumu Yasuda³ (1. Fukken Gijyutsu Consultants Co., Ltd, 2. Matsudo City, 3. Tokyo Denki University)

4:19 PM - 4:31 PM

[Day1-G415-21] Simulation of Debris Flow by Distinct Element Method for Slope Failure Analysis

*Hitoshi Nakase¹, Yusuke Kanai¹, Masatoshi Narumi¹ (1. Tokyo Electric Power Services co. Ltd.)

4:32 PM - 4:44 PM

[Day1-G415-22] Earthquake response analysis of embankment by using grid-based particle method considering large deformation

*Takatoshi Kiriyama¹, Kiyoshi Fukutake¹ (1. Shimizu corporation, Institute of Technology)

4:45 PM - 4:57 PM

[Day1-G415-23] A Study on the Influence of the Hardness and Softness of Support Ground on the Displacement of Embankments during Earthquakes and the Evaluation Method

*Keita Abe¹, Noriaki Sento¹ (1. Nihon University)

4:58 PM - 5:10 PM

[Day1-G415-24] A study on the risk quantification for seismic slope failures based on the correlation between critical PGA and critical seismic coefficient

*Taisuke Watanabe¹, Akihiko Wakai², Senro Kuraoka³, Tomoyuki Ikariya³, Yuichi Nakashima³ (1. JISHIN KOGAKU KENKYUSHO,INC., 2. Gunma University, 3. Nippon Koei Co., Ltd.)

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