Japan Society of Civil Engineers 2019 Annual Meeting

Presentation information

第III部門

地盤の挙動/地盤の動的挙動 (4)

Wed. Sep 4, 2019 8:40 AM - 10:10 AM III-2 (幸町北4号館 412講義室)

座長:重村 智(日本大学)

[III-198] Formation mechanism of bulge of slope that is sign of large-scale collapse

*吉村 辰朗1 (1. 第一復建株式会社)

Keywords:large-scale collapse, fracture, seismic motion, bulge of slope

The fracture is distributed around main scarp and side cliff in slope failure. The formation of landslide mass results from dividing into parts by fracture. "Landslide mass formation model by dividing into fracture" was verified in large-scale landslide. The thick debris is distributed in the center part of the landslide mass. Bulge of slope is admitted before collapses. Bulge of slope is caused by seismic motion and the thick debris.

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