Dynamic Characteristics and Hazard Risk Assessment of Debris Flow in Bayi Gully of Dujiangyan City of Sichuan Provinc

Zhou Wei; Chen Ning-shen; Deng Ming-feng; Yang Cheng-lin; Lu Yang

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Dynamic Characteristics and Hazard Risk Assessment of Debris Flow in Bayi Gully of Dujiangyan City of Sichuan Provinc

- Dynamic Characteristics and Hazard Risk Assessment of Debris Flow in Bayi Gully of Dujiangyan City of Sichuan Provinc
- Bulletin of Soiland Water Conservation Vol. 30, Issue 5, Pages: 138-143(2011)
- 作者机构：
  
  1. 中国科学院水利部成都山地灾害与环境研究所
  2. 中国科学院研究生院
- 作者简介：
- 基金信息：
- DOI：
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- Published：2011
- 稿件说明：
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Zhou Wei, Chen Ning-shen, Deng Ming-feng, et al. Dynamic Characteristics and Hazard Risk Assessment of Debris Flow in Bayi Gully of Dujiangyan City of Sichuan Provinc[J]. Bulletin of Soiland Water Conservation, 2011, 30(5): 138-143.
DOI：

Zhou Wei, Chen Ning-shen, Deng Ming-feng, et al. Dynamic Characteristics and Hazard Risk Assessment of Debris Flow in Bayi Gully of Dujiangyan City of Sichuan Provinc[J]. Bulletin of Soiland Water Conservation, 2011, 30(5): 138-143. DOI：

摘要

2010年8月13日和18日

四川省都江堰市八一沟暴发特大规模泥石流

严重影响了当地人民的正常生产生活。通过实地调查八一沟泥石流灾害现场

详细地分析了其成因、动力学特征及危险性。研究表明

八一沟的物源、降雨和地形均满足泥石流的形成条件。该泥石流的规模为特大型

危险程度为高

有进一步发展趋势。该研究结果可为八一沟泥石流的工程治理及防灾减灾提供可靠依据。

Abstract

Two giant debris flows occurred in Bayi gully in Dujiangyan County

respectively on August 13and 18

2010

affecting seriously local people’s daily production and life.Based on field investigation data obtained from Bayi gully

the causes and the dynamic characteristics of the debris flows was analyzed

and a detailed risk assessment were carried out.The study results show that the loose material source

rainfall amount and topographic conditions of Bayi gully were contributed to the initialization of debris flows.The debris flows in Bayi gully were giant in magnitude and high in risk.The study provides a reliable basis for the debris flow prevention and mitigation in Bayi gully.

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