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.
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:
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.