Daichi SugoAssistant Professor
■Researcher basic information
Organization
Research Areas
- Social infrastructure (civil Engineering, architecture, disaster prevention), Structural and seismic engineering
- Social infrastructure (civil Engineering, architecture, disaster prevention), Disaster prevention engineering
- Social infrastructure (civil Engineering, architecture, disaster prevention), Geotechnical engineering
Educational Background
- Apr. 2023 - Mar. 2026, Tohoku University, Graduate School of Engineering, Department of Civil and Environmental Engineering, Doctoral Program
- Apr. 2021 - Mar. 2023, Tohoku University, Graduate School of Engineering, Department of Civil and Environmental Engineering, Master's Program
- Apr. 2017 - Mar. 2021, Tohoku University, Faculty of Engineering, Department of Civil Engineering and Architecture
Career
■Research activity information
Award
Paper
- Large-area slope stability analysis: Performance comparison of three-dimensional limit equilibrium methods
Daichi Sugo; John Y. Choe; Saneiki Fujita; Nilo Lemuel J. Dolojan; Kenta Tozato; Reika Nomura; Kenjiro Terada; Eiji Tominaga; Shoji Iwanaga; Shuji Moriguchi, Lead, Elsevier BV
Soils and Foundations, Dec. 2025, [Reviewed] - Rapid prediction of rainfall-induced landslides over a wide area aided by a simulation-based surrogate model
Kenta Tozato; Daichi Sugo; Nilo Lemuel J. Dolojan; Reika Nomura; Kenjiro Terada; Shinsuke Takase; Kenji Kaneko; Shuji Moriguchi, Elsevier BV
Computers and Geotechnics, Dec. 2025, [Reviewed] - Submarine landslide induced tsunami modeling using 3D slope stability analysis Method: The 2024 Noto Peninsula earthquake and tsunami in Toyama Bay, Japan
Muhammad Daffa Al Farizi; Anawat Suppasri; Tsuyoshi Nagasawa; Yukio Mabuchi; Tatsunori Nogami; Hidetoshi Masuda; Daichi Sugo; Shuji Moriguchi; Yoshinori Shigihara; Fumihiko Imamura, Elsevier BV
Ocean Engineering, Nov. 2025, [Reviewed] - Performance Validation of Three-Dimensinonal Limit Equilibrium Method for Shallow Landslides Over a Wide Area
D. Sugo; S. Fujita; N. Dolojan; K. Tozato; R. Nomura; S. Moriguchi; K. Terada, Lead, Abstract
Slope stability analysis based on the limit equilibrium theory has been widely employed in practice. However, the application of the three-dimensional (3D) limit equilibrium method (LEM) for multiple slopes over a large area has not been extensively discussed. In this study, a 3D LEMs-based slope stability analysis was conducted over a large area with actual terrain data under the conditions of shallow failures that occur during heavy rainfall events. The results confirmed that the three different methods have similar trends in receiver operating characteristic (ROC) curves though each evaluated factor of safety is different. In other words, under the conditions of shallow landslides, the Hovland method, which has the lowest computational cost among 3D LEMs, can produce results comparable to those of more advanced methods only by changing the threshold of the factor of safety., IOP Publishing
IOP Conference Series: Earth and Environmental Science, 01 Apr. 2025, [Reviewed]
MISC
- Application of a Three-Dimensional Limit Equilibrium Method Based on Ellipsoidal Slip Surfaces and Particle Swarm Optimization to Large-Area Slope Stability Analysis
Daichi Sugo; John Choe; Kenta Tozato; Reika Nomura; Kenjiro Terada; Kosuke Watanabe
Proceedings of the Conference on Computational Engineering and Science, Jun. 2025
Lead - 地震力の空間分布を考慮した極限平衡理論に基づく広域を対象とする三次元斜面安定解析
松田晃汰; 須郷大地; 野村怜佳; 大野晋; 寺田賢二郎; 森口周二
土木学会全国大会年次学術講演会(Web), 2025 - Wide-area slope stability analysis considering 3D geological structure
Shuji Moriguchi; Daichi Sugo; Nilo Lemuel Junio Dolojan; Reika Nomura; Kenjiro Terada; Kosuke Watanabe; Eiji Tominaga; Shoji Iwanaga; Kazuo Takahashi
地盤工学会誌(Web), 2025 - Large-area Three-dimensional Slope Stability Analysis based on Limit Equilibrium Theory with the Aid of DBSCAN
Daichi Sugo; Saneiki Fujita; Nilo Dolojan; Kenta Tozato; Reika Nomura; Shuji Moriguchi; Kenjiro Terada
Proceedings of the Conference on Computational Engineering and Science, Jun. 2024
Lead - Application of Quantum Annealing to Slope Stability Analysis
Kenta Tozato; Xiao Junsen; Daichi Sugo; Shota Yamauchi; Reika Nomura; Shuji Moriguchi; Shinsuke Takase; Kenji Kaneko; Kenjiro Terada
Proceedings of the Conference on Computational Engineering and Science, Jun. 2024 - ガウス過程回帰と空間モード分解を用いた降雨時の広域斜面崩壊即時予測
外里健太; 須郷大地; DOLOJAN Nilo; 野村怜佳; 高瀬慎介; 金子賢治; 寺田賢二郎; 森口周二
地盤工学シンポジウム論文集(Web), 2024 - A simulation on rainfall-earthquake induced landslide over wide area using the limit equilibrium method
Iskandar Iskandar; Daichi Sugo; Nilo Dolojan; Nomura Reika; Moriguchi Shuji; Terada Kenjiro; Muslim Dicky; Arifianti Yukni; Afif Hauna; Pamela Pamela
Proceedings of the Conference on Computational Engineering and Science, May 2023 - Wide-area Slope Stability Analysis based on Limit Equilibrium Theory
Daichi Sugo; Saneiki Fujida; Kenta Tozato; Reika Nomura; Shuji Moriguchi; Kenjiro Terada
Proceedings of the Conference on Computational Engineering and Science, May 2023
Lead - 実地形を対象としたHovland法と三次元簡易Bishop法による広域斜面安定解析
中村優見; 須郷大地; 外里健太; 野村怜佳; 森口周二; 寺田賢二郎
土木学会全国大会年次学術講演会(Web), 2023
Lectures, oral presentations, etc.
- 数値解析と観測を融合した地震力による斜面崩壊の広域即時予測
小島 空; 松田 晃汰; 湯 東暘; 須郷 大地; 野村 怜佳; 寺田 賢二郎; 森口 周二
令和7年度 土木学会東北支部技術研究発表会, 07 Mar. 2026, 公益社団法人土木学会東北支部
20260307, 20260307 - 3D LEM-Based Regional-Scale Slope Stability Analysis
Shuji Moriguchi; Daichi Sugo; John Y. Choe; Kenta Tozato; Nilo Lemuel J. Dolojan; Reika Nomura; Kosuke Watanabe; Kenjiro Terada
The 5th International Symposium on Slope Risk and Resilience, 08 Feb. 2026
20260207, 2026 - 地震力の空間分布を考慮した極限平衡理論に基づく広域を対象とする三次元斜面安定解析
松田 晃汰; 須郷 大地; 野村 怜佳; 寺田 賢二郎; 大野 晋; 森口 周二
令和7年度土木学会全国大会, 12 Sep. 2025
20250908, 20250912 - Large-area Slope Stability Analysis using Three-dimensional Limit Equilibrium Method with Ellipsoidal Slip Surfaces and Particle Swarm Optimization
Daichi Sugo; John Yeonjun Choe; Kenta Tozato; Reika Nomura; Kenjiro Terada; Kosuke Watanabe; Shuji Moriguchi
The 4th International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE2025), 04 Jul. 2025
20250701, 20250704 - 楕円体すべり面と粒子群最適化を用いた三次元極限平衡法の広域斜面安定解析への適用
須郷 大地; Choe John; 外里 健太; 野村 怜佳; 寺田 賢二郎; 渡邊 康介; 森口 周二
第30回計算工学講演会, 04 Jun. 2025, 日本計算工学会
20250604, 20250606 - 地震力の空間分布を考慮した極限平衡理論に基づく 三次元広域斜面安定解析
松田 晃汰; 須郷 大地; 野村 怜佳; 寺田 賢二郎; 森口 周二; 大野 晋
第28回応用力学シンポジウム, 16 May 2025
20250516, 20250517
