Organized Sessions

Current achievements and future perspectives in ESG related studies

Sat. Nov 25, 2023 9:15 AM - 10:51 AM G415 (PACIFICO Yokohama North, 4F)

Chairpersons: Hiroaki Sato (Central Research Institute of Electric Power Industry), Shinichi Matsushima (Kyoto University)

2021年9月のESG6国際シンポジウムでは、サイト特性評価に関して、地震動データを直接的に利用する手法（データ駆動型）や地盤モデルを介した物理モデルに基づく手法（物理ベース型）の最新知見が報告されるとともに、今後の展望について議論が行われた。本OSでは、ESG6での成果を受け、データ駆動型、物理ベース型、さらにはその範疇にとどまらないサイト特性評価手法、地盤の非線形性や表層の地形が地震動に及ぼす影響とその評価手法などに関する最新の研究発表を募集する。日々増加する地震動データを有効活用するデータ駆動型のサイト特性評価については、深層学習によるAI手法などの活用が大いに期待されると同時に、強震動に関するより豊富なメタデータの必要性、物理ベース型のサイト特性評価では認識論的（epistemic）と偶発的（aleatory）不確実さの評価の必要性が、国際的にも高まっている。こうした海外の動向も踏まえ、現在そして将来に向けた議論を行う場としたい。

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9:15 AM - 9:27 AM

[Day3-G415-01] Important Issues towards the Quantitative Evaluation of S-Wave Site Amplification Factors based on Observed Strong Motions

*Hiroshi Kawase¹, Kenichi Nakano², Eri Ito¹, Jikai Sun¹, Fumiaki Nagashima¹, Ziqian Wang¹ (1. Kyoto University, 2. HAZAMA ANDO CORPORATION)

9:27 AM - 9:39 AM

[Day3-G415-02] Estimation of the subsurface structure of Shonai Plain based on microtremor measurements to investigate the cause of earthquake damage during the 1894 Shonai Earthquake

*Shinichi Matsushima¹, Kohei Yamamoto², Yuting Chou², Fumiaki Nagashima¹, Junzo Ohmura³, Yasuyuki Kano³, Takashi Azuma⁴, Motoko Ishise⁵ (1. Disaster Prevention Research Institute, Kyoto University, 2. Department of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University, 3. Earthquake Research Institute, University of Tokyo, 4. National Institute of Advanced Industrial Science and Technology, 5. Yamagata University)

9:39 AM - 9:51 AM

[Day3-G415-03] Evaluation of Site Amplification Factor based on Microtremor Survey at the Severely Damaged Sites during the 1923 Kanto Earthquake

*Eri Ito¹, Fumiaki Nagashima¹, Jikai Sun¹, Ziqian Wang¹, Hiroshi Kawase¹ (1. DPRI,Kyoto University)

9:51 AM - 10:03 AM

[Day3-G415-04] Spatial velocity variation in Mukawa town, Hokkaido detected using multi-linear-array microtremors

*Kosuke Chimoto¹ (1. Kagawa University)

10:03 AM - 10:15 AM

[Day3-G415-05] Evaluation of wave propagation characteristics using dense array observation and deep borehole observations

*Tomiichi Uetake¹, Kazuhito Hikima¹, Akihiro Shimmura¹, Masatoshi Fujioka¹ (1. Tokyo Electric Power Company Holdings, Inc.)

10:15 AM - 10:27 AM

[Day3-G415-06] Statistical Property of Spatial Correlation Evaluated by Dense Seismic Observation at Hard-rock Site

*Takanobu Sato¹, Hiroaki Sato¹ (1. Central Research Institute of Electric Power Industry)

10:27 AM - 10:39 AM

[Day3-G415-07] Site effects evaluated by underground structural surveys performed in Nagasaki City

*Seiji Tsuno¹, Misa Moriwaki¹, Masahiro Korenaga¹, Hiroaki Yamanaka², Nobuo Takai³, Naofumi Nakagawa³, Naotoshi Sugimoto³ (1. Railway Technical Research Institute, 2. Tokyo Institute of Technology, 3. Hokkaido University)

10:39 AM - 10:51 AM

[Day3-G415-08] A proxy for assessing topographic site effects and its application to K-NET and KiK-net

*Hiroaki Sato¹, Masayuki Kuriyama¹ (1. Central Research Institute of Electric Power Industry)

Sessions

Organized session » OS6 Current achievements and future perspectives in ESG related studies