京都大学 · 環境科学
崔昇華教授の研究室は、地震誘発土石流や斜面崩壊の発生機構を解明することを主眼としており、特に積層斜面における繰返し地震応答と損傷蓄積のメカニズムに注力しています。実験的・観測的アプローチを組み合わせ、震動台実験やリモートセンシング、InSAR技術を用いて斜面の変形挙動と破壊メカニズムを多角的に解明しています。また、破壊界面の力学的特性や岩石の非線形損傷挙動の解明にも取り組んでいます。
Figures are computed from collected data and may differ slightly.
The 2017 catastrophic Xinmocun landslide was triggered on a bedding slope in the Songpinggou Gully, Maoxian County, China. Previous research primarily focused on the dynamic slope response and deformation characteristics of a single earthquake, and focus on the effect of damage accumulation on slope stability is lacking. The shaking table tests were conducted in this study to understand historical earthquake-induced damage accumulation in bedding slopes. The acceleration amplification coefficien
Abstract The 2008 Wenchuan Ms 8.0 earthquake triggered the Daguangbao (DGB) landslide, of which the shear surface belongs to a thrust bedding fault 400 m below the carbonate slope. After the landslide, a 1.8 km-long inclined sliding face (0.3 km2) was exposed in the south source area. By using shaking table test, the contributions of the fault to the landslide sliding have been studied in this paper. The bedding fault in the test model is simplified as a weak layer with small elasticity and the
Abstract Rock landslides are generally controlled by a series of discontinuous interfaces formed by damage to complex structural rock masses that is related to folds, faults, and shear zones, which provide potential failure boundaries. Based on a detailed case study, the authors illustrate that structural damage not only affects the 3D boundaries of landslides but also significantly controls the initiation mode. In this paper, six large landslides triggered by the 2008 Wenchuan earthquake (Ms 8.
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