A numerical simulation of volumetric enlargement for seismic debris flow using integrated DDA and KANAKO 2D

Z. Han, G. Chen, Y. Li, L. Zheng, Y. Zhang, L. R. Xu

研究成果: Contribution to conferencePaper査読

8 被引用数 (Scopus)

抄録

The assessment of the debris-flow hazard potential has to rely on the debris volume, for now seismic condition and relevant influence is not considered in the current estimation method, which causing the calculating volume far less than reality. Current researches indicate that volumetric enlargement for seismic debris flow mostly due to the debris material accumulation along the flowing path induced by earthquake, however only qualitative or semi-quantitative methods are adopted. In this paper, a method integrating with DDA and dilatant flow model based KANAKO 2D is proposed, in which the process of debris material accumulation is simulated by DDA, the processes of debris material entrainment and debris-flow deposition are simulated by KANAKO 2D. To demonstrate this method, Shekeniluo debris flow gully, which located in the high seismic intensity zone of Wenchuan earthquake in Shimian County, Sichuan Province is selected as a case study. Numerical simulation results show that debris volume and influence area would expand to 3 times, and it is also verified to approximate to the investigation result.

本文言語英語
ページ281-287
ページ数7
DOI
出版ステータス出版済み - 2013
イベント11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013 - Fukuoka, 日本
継続期間: 8 27 20138 29 2013

その他

その他11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013
Country日本
CityFukuoka
Period8/27/138/29/13

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation

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